BS 4504 Flange

PDO Approved BS 4504 Flange Manufacturer In India And Specification List Of British Standard 4504.

BS 4504 Flanges

BS 4504 PN16 Flanges

BS 4504 PN10 Flanges

What Is BS 4504?

BS 4504 are classified according to a British system which is now obsolete and is replaced with a much recent EN1092-1 classification system. bs 4504 pn16 Flanges adhere to the pressure class PN16 which is a high pressure containment classification whereas the EN BS 4504 Flange is a low pressure class denomination. BS 4504 Pipe Flanges can come in different types and shapes. BS 4504 pn 10 Flanges can also come in different models and compositions such as the DIN BS 4504 forged flange. The BS 4504 pn 16 Plate Flanges is used in requirements where an end plate is needed in a pipeline application.

BS4504 Material Specification

British Standard (BS) 4504 Dimensions

BS 4504 Flange Dimensions
BS 4504 Pn 5 Flange Dimensions
BS 4504 Pn 6 Flange Dimensions
BS 4504 Pn10 Flange Dimensions
BS4504 Pn16 Flange Dimensions
BS4504 Pn16 Flange Bolting Chart
BS4504 Pn25 Flange Dimensions
BS4504 Pn25 Flange Bolting Chart
BS4504 Pn40 Flange Dimensions
BS4504 Pn40 Flange Bolting Chart
BS 4504 Plate Flange Dimensions
BS 4504 Welding Neck Flange Dimensions
BS 4504 Threaded Flange Dimensions
BS 4504 Blind Flange Dimensions

Other BS Flange Standard Dimensions & Weight

EN BS 3293 Flanges Dimensions
DIN BS 3293 Flanges Weight Chart
Series a BS1560 Flange Dimensions
DIN 86029 BS 4504 Flanges Pressure Ratings
PN10 BS 4504 Forged Flange Weight Chart In Kg
British Standard BS 4504 Bolts Chart
BS 4504 Pn10 And PN16 Thickness Tolerance
BS4504 Gasket Dimensions
BS 4504 Standard Flanges Tolerances
Contact US For Buy Type Of BS 4504 Flanges

We Provide British Standard 4504 Blind Flange With Good Quality And BS 4504 PN10 Flange Dimensions Chart According to ASME B16.5.

BS4504 Material Specification

Material Specification Of :	BS 4504 Flange (PN10 & PN16)
Flanges Standards	EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN
Pressure Rating	Class 150 To Class 2500
High Temperature	Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature	Above -29 Degree C (−20°F)
Common Types Of Flanges:	Slip On (SORF), Weld Neck (WNRF), Blind (BLRF), Lap Joint (Loose), Threaded (NPT), Socket-Weld (SWRF)
Special Types Of Flanges :	Nipoflange, Elboflange, Latroflange, Swivel Flanges, Expanding Flanges, Reducing Flanges, Weldoflange
Standard Cover :	pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing
Contact Faces	RTJ (Ring Type Joint), FF (Flat Face), RF (Raised Face), T/G (Tongue And Groove ), M/F (Male And Female)
Size Chart	Normal Pipe Size 1/2 to NPS 24"
Materials	Stainless Steel (Grade 304/L, 316/L), Carbon Steel (ASTM A105 And ASTM A350), Alloy Steel (ASTM A182), Mild Steel, Duplex Steel, Pressure Vessel Steel, Titanium, Super Duplex Steel, Nickel Alloy, Monel, Inconel, Hastelloy, Copper Nickel, Cast Iron, Wrought Iron.
Thickness	Normal Pipe Size ≤ 18
Bore Diameter	Normal Pipe ≤ 10
Marking Standard	Name of Manufacturer Schedule Type of Flange Facing Nominal Pipe Size Pressure Class ASME B16 Designation
Bolt Type	high strength bolts medium strength bolts low strength bolts
European Standard Flanges	JIS B2220 Flanges (5k to 30k) and KS1503 flanges
Russian-Standard Flanges	GOST 12820 / 12821-80, DIN, UNI, EN 1092-1
South African Standard Flanges	SANSflanges And SABS flanges
Surface Finish	smooth, concentric serrated, stock
Gaskets Types	Full Face Gasket Flat Ring Gasket Metallic Ring Gakset
Advantages Of Pipe Flange	Used to Connect Pipe System Easy Repair Pipe System Assembled Without Welding

BS 4504 Flange Dimensions

DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1
10	90	14	14	20	35	6	3	17,2	28	30	18	40	2
15	95	14	14	20	35	6	3	21,3	32	35	22	45	2
20	105	14	14	24	38	6	4	26,9	39	45	27,5	58	2
25	115	16	16	24	38	6	4	33,7	46	52	34,5	68	2
32	140	18	16	26	40	6	5	42,4	56	60	43,5	78	2
40	150	18	16	26	42	7	5	48,3	64	70	49,5	88	3
50	165	20	18	28	45	8	5	60,3	74	84	61,5	102	3
65	185	20	18	32	45	10	6	76,1	92	104	77,5	122	3
80	200	20	20	34	50	10	6	88,9	110	118	90,5	138	3
100	220	22	20	40	52	12	6	114,3	130	140	116	162	3
125	250	22	22	44	55	12	6	139,7	158	168	141,5	188	3
150	285	24	22	44	55	12	8	168,3	184	195	170,5	212	3
200	340	26	24	44	62	16	8	219,1	234	246	221,5	268	3
250	405	29	26	46	70	16	10	273	288	298	276,5	320	3
300	460	32	28	46	78	16	10	323,9	342	350	327,5	378	4
350	520	35	30	57	82	16	10	355,6	390	400	359	438	4
400	580	38	32	63	85	16	10	406,4	444	456	411,0	490	4
450	640	42	34	68	87	16	12	457,0	490	502	462,0	550	4
500	715	46	34	73	90	16	12	508,0	546	559	513,5	610	4
600	840	52	36	83	95	18	12	610,0	650	658	616,5	725	5
700	910	60	36	83	100	18	12	711,0	750	760	–	795	5
800	1025	68	38	90	105	20	12	813,0	848	864	–	900	5
900	1125	76	40	94	110	20	12	914,0	948	968	–	1000	5
1000	1255	84	42	100	120	22	12	1016,0	1056	1072	–	1115	5
1200	1485	98	48	–	130	30	12	1220,0	1260	–	–	1330	5
1400	1685	–	52	–	145	30	12	1420,0	1465	–	–	1530	5
1600	1930	–	58	–	160	35	12	1620,0	1668	–	–	1750	5
DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1

BS 4504 Pn 5 Flange Dimensions

Normal Pipe Size	Flanges					Raised Face (RF)		Drilling			Bolting	Neck					Diameter Of Bore
DN	A	C	C1	C2	D1	G	X	Number	I	J		M	F	E	R	T	B
10	75	12	12	12	28	35	2	4	11	50	M10	26	17.2	6	3	1.8	18.0
15	80	12	12	12	30	40	2	4	11	55	M10	30	21.3	6	3	2.0	22.0
20	90	14	14	14	32	50	2	4	11	65	M10	38	26.9	6	4	2.3	27.5
25	100	14	14	14	35	60	2	4	11	75	M10	42	33.7	6	4	2.6	34.5
32	120	14	16	14	35	70	2	4	14	90	M12	55	42.4	6	5	2.6	43.5
40	130	14	16	14	38	80	3	4	14	100	M12	62	48.3	7	5	2.6	49.5
50	140	14	16	14	38	90	3	4	14	110	M12	74	60.3	8	5	2.9	61.5
65	160	14	16	14	38	110	3	4	14	130	M12	88	76.1	9	6	2.9	77.5
80	190	16	18	16	42	128	3	4	18	150	M16	102	88.9	10	6	3.2	90.5
100	210	16	18	16	45	148	3	4	18	170	M16	130	114.3	10	6	3.6	116.0
125	240	18	20	18	48	178	3	8	18	200	M16	155	139.7	10	6	4.0	141.5
150	265	18	20	18	48	202	3	8	18	225	M16	184	168.3	12	8	4.5	170.5
200	320	20	22	20	55	258	3	8	18	280	M16	236	219.1	15	8	5.6	221.5
250	375	22	24	22	60	312	3	12	18	335	M16	290	273.0	15	10	6.3	276.5
300	440	22	24	22	62	365	4	12	22	395	M20	342	323.9	15	10	7.1	327.6
350	490	22	26	22	62	415	4	12	22	445	M20	385	355.6	15	10	7.1	359.0
400	540	22	28	22	65	465	4	16	22	495	M20	438	406.4	15	10	7.1	411.0
450	595	24	30	24	65	520	4	16	22	550	M20	492	457.0	15	12	7.1	462.0
500	645	24	30	24	68	570	4	20	22	600	M20	538	508.0	15	12	7.1	513.5
600	755	24	32	34	70	670	5	20	26	705	M24	640	610.0	16	12	7.1	616.5
700	860	24	36	–	70	–	5	24	26	810	M24	740	711.0	16	12	–	–
800	975	26	38	–	70	–	5	24	30	920	M27	842	813.0	16	12	–	–
900	1075	26	40	–	70	–	5	24	30	1020	M27	942	914.0	16	12	–	–
1000	1175	26	42	–	70	–	5	28	30	1120	M27	1045	1016.0	16	12	–	–
1200	1375	26	44	–	70	–	5	32	30	1320	M27	1245	1220.0	16	16	–	–
1400	1575	26	48	–	70	–	5	36	30	1520	M27	1445	1420.0	16	16	–	–
1600	1790	26	51	–	80	–	5	40	30	1730	M27	1645	1620.0	20	16	–	–
1800	1990	26	54	–	80	–	5	44	30	1930	M27	1845	1820.0	20	16	–	–
2000	2190	26	58	–	80	–	5	48	30	2130	M27	2045	2020.0	22	16	–	–

BS 4504 Pn 6 Flange Dimensions

Normal Pipe Sizes	Flanges						Raised Face (RF)		Boss	Drilling			Bolting	Neck					Diameter Of Bore
DN	A	C	C1	C2	D	D1	G	X	N	No.	I	J		M	F	E	R	T	B
10	75	12	12	12	20	28	35	2	25	4	11	50	M10	26	17.2	6	3	1.8	18.0
15	80	12	12	12	20	30	40	2	30	4	11	55	M10	30	21.3	6	3	2.0	22.0
20	90	14	14	14	24	32	50	2	40	4	11	65	M10	38	26.9	6	4	2.3	27.5
25	100	14	14	14	24	35	60	2	50	4	11	75	M10	42	33.7	6	4	2.6	34.5
32	120	14	16	14	26	35	70	2	60	4	14	90	M12	55	42.4	6	5	2.6	43.5
40	130	14	16	14	26	38	80	3	70	4	14	100	M12	62	48.3	7	5	2.6	49.5
50	140	14	16	14	28	38	90	3	80	4	14	110	M12	74	60.3	8	5	2.9	61.5
65	160	14	16	14	32	38	110	3	100	4	14	130	M12	88	76.1	9	6	2.9	77.5
80	190	16	18	16	34	42	128	3	110	4	18	150	M16	102	88.9	10	6	3.2	90.5
100	210	16	18	16	40	45	148	3	130	4	18	170	M16	130	114.3	10	6	3.6	116.0
125	240	18	20	18	44	48	178	3	160	8	18	200	M16	155	139.7	10	6	4.0	141.5
150	265	18	20	18	44	48	202	3	185	8	18	225	M16	184	168.3	12	8	4.5	170.5
200	320	20	22	20	44	55	258	3	240	8	18	280	M16	236	219.1	15	8	5.6	221.5
250	375	22	24	22	44	60	312	3	295	12	18	335	M16	290	273.0	15	10	6.3	276.5
300	440	22	24	22	44	62	365	4	355	12	22	395	M20	342	323.9	15	10	7.1	327.5
350	490	22	26	22	–	62	415	4	–	12	22	445	M20	385	355.6	15	10	7.1	359.5
400	540	22	28	22	–	65	465	4	–	16	22	495	M20	438	406.4	15	10	7.1	411.0
450	595	24	30	24	–	65	520	4	–	16	22	550	M20	492	457.0	15	12	7.1	462.0
500	645	24	30	24	–	68	570	4	–	20	22	600	M20	538	508.0	15	12	7.1	513.5
600	755	24	32	34	–	70	670	5	–	20	26	705	M24	640	610.0	16	12	7.1	616.5
700	860	24	40	38	–	70	775	5	–	24	26	810	M24	740	711.0	16	12	7.1	–
800	975	24	44	42	–	70	880	5	–	24	30	920	M27	842	813.0	16	12	7.1	–
900	1075	26	48	46	–	70	980	5	–	24	30	1020	M27	942	914.0	16	12	7.1	–
1000	1175	26	52	52	–	70	1080	5	–	28	30	1120	M27	1045	1016.0	16	12	7.1	–
1200	1405	28	60	60	–	90	1295	5	–	32	33	1340	M30	1248	1220.0	20	12	8.0	–
1400	1630	32	68	68	–	90	1510	5	–	36	36	1560	M33	1452	1420.0	20	12	8.0	–
1600	1830	34	76	76	–	90	1710	5	–	40	36	1760	M33	1655	1620.0	20	12	9.0	–
1800	2045	36	84	84	–	100	1920	5	–	44	39	1970	M36	1855	1820.0	20	15	10.0	–
2000	2265	38	92	92	–	110	2125	5	–	48	42	2180	M39	2058	2020.0	25	15	11.0	–

BS 4504 Pn10 Flange Dimensions

Normal Pipe Sizes	Flange						Raised Face (RF)		Boss	Drilling			Bolting	Neck					Diameter Of Bore
DN	A	C	C1	C2	D	D1	G	X	N	No.	I	J	Bolting	M	F	E	R	T	B
10	90	14	14	14	20	35	40	2	30	4	14	60	M12	28	17.2	6	3	1.8	18.0
15	95	14	14	14	20	35	45	2	35	4	14	65	M12	32	21.3	6	3	2.0	22.0
20	105	16	16	16	24	38	58	2	45	4	14	75	M12	39	26.9	6	4	2.3	27.5
25	115	16	16	16	24	38	68	2	52	4	14	85	M12	46	33.7	6	4	2.6	34.5
32	140	16	18	16	26	40	78	2	60	4	18	100	M16	56	42.4	6	5	2.6	43.5
40	150	16	18	16	26	42	88	3	70	4	18	110	M16	64	48.3	7	5	2.6	49.5
50	165	18	20	18	28	45	102	3	84	4	18	125	M16	74	60.3	8	5	2.9	61.5
65	185	18	20	18	32	45	122	3	104	4 / 8	18	145	M16	92	76.1	10	6	2.9	77.5
80	200	20	20	20	34	50	138	3	118	8	18	160	M16	110	88.9	10	6	3.2	90.5
100	220	20	22	20	40	52	162	3	140	8	18	180	M16	130	114.3	12	6	3.6	116.0
125 *	250	22	22	22	44	55	188	3	168	8	18	210	M16	158	139.7	12	6	4.0	141.5
150	285	22	24	22	44	55	212	3	195	8	22	240	M20	184	168.3	12	8	4.5	170.5
200	340	24	24	24	44	62	268	3	246	8	22	295	M20	234	219.1	16	8	5.6	221.5
250	395	26	26	26	46	68	320	3	298	12	22	350	M20	288	273.0	16	10	6.3	276.5
300	445	26	28	26	46	68	370	4	350	12	22	400	M20	342	323.9	16	10	7.1	327.6
350	505	26	28	26	53	68	430	4	400	16	22	460	M20	390	355.6	16	10	7.1	359.0
400	565	26	32	26	57	72	482	4	456	16	26	515	M24	440	406.4	16	10	7.1	411.0
450	615	28	36	28	63	72	532	4	502	20	26	565	M24	488	457.0	16	12	7.1	462.0
500	670	28	38	28	67	75	585	4	559	20	26	620	M24	540	508.0	16	12	7.1	513.5
600	780	28	42	34	75	80	685	5	658	20	30	725	M27	640	610.0	18	12	7.1	616.5
700	895	30	–	38	–	80	800	5	–	24	30	840	M27	746	711.0	18	12	8.0	–
800	1015	32	–	42	–	90	905	5	–	24	33	950	M30	848	813.0	18	12	8.0	–
900	1115	34	–	46	–	95	1005	5	–	28	33	1050	M30	948	914.0	20	12	10.0	–
1000	1230	34	–	52	–	95	1110	5	–	28	36	1160	M33	1050	1016.0	20	12	10.0	–
1200	1455	38	–	60	–	115	1330	5	–	32	39	1380	M36	1256	1220.0	25	12	11.0	–
1400	1675	42	–	–	–	120	1535	5	–	36	42	1590	M39	1460	1420.0	25	12	12.0	–
1600	1915	46	–	–	–	130	1760	5	–	40	48	1820	M45	1666	1620.0	25	12	14.0	–
1800	2115	50	–	–	–	140	1960	5	–	44	48	2020	M45	1866	1820.0	30	15	15.0	–
2000	2325	54	–	–	–	150	2170	5	–	48	48	2230	M45	2070	2020.0	30	15	16.0	–
2200	2550	58	–	–	–	160	2370	6	–	52	56	2440	M52	2275	2220.0	35	15	–	–
2400	2760	62	–	–	–	170	2570	6	–	56	56	2650	M52	2478	2420.0	35	15	–	–
2600	2960	65	–	–	–	180	2780	6	–	60	56	2850	M52	2680	2620.0	40	18	–	–
2800	3180	70	–	–	–	190	3000	6	–	64	56	3070	M52	2882	2820.0	40	18	–	–
3000	3405	75	–	–	–	200	3210	6	–	68	62	3290	M56	3085	3020.0	40	18	–	–

BS4504 Pn16 Flange Dimensions

DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1
10	90	14	14	20	35	6	3	17,2	28	30	18	40	2
15	95	14	14	20	35	6	3	21,3	32	35	22	45	2
20	105	14	14	24	38	6	4	26,9	39	45	27,5	58	2
25	115	16	16	24	38	6	4	33,7	46	52	34,5	68	2
32	140	18	16	26	40	6	5	42,4	56	60	43,5	78	2
40	150	18	16	26	42	7	5	48,3	64	70	49,5	88	3
50	165	20	18	28	45	8	5	60,3	74	84	61,5	102	3
65	185	20	18	32	45	10	6	76,1	92	104	77,5	122	3
80	200	20	20	34	50	10	6	88,9	110	118	90,5	138	3
100	220	22	20	40	52	12	6	114,3	130	140	116	162	3
125	250	22	22	44	55	12	6	139,7	158	168	141,5	188	3
150	285	24	22	44	55	12	8	168,3	184	195	170,5	212	3
200	340	26	24	44	62	16	8	219,1	234	246	221,5	268	3
250	405	29	26	46	70	16	10	273	288	298	276,5	320	3
300	460	32	28	46	78	16	10	323,9	342	350	327,5	378	4
350	520	35	30	57	82	16	10	355,6	390	400	359	438	4
400	580	38	32	63	85	16	10	406,4	444	456	411,0	490	4
450	640	42	34	68	87	16	12	457,0	490	502	462,0	550	4
500	715	46	34	73	90	16	12	508,0	546	559	513,5	610	4
600	840	52	36	83	95	18	12	610,0	650	658	616,5	725	5
700	910	60	36	83	100	18	12	711,0	750	760	-	795	5
800	1025	68	38	90	105	20	12	813,0	848	864	-	900	5
900	1125	76	40	94	110	20	12	914,0	948	968	-	1000	5
1000	1255	84	42	100	120	22	12	1016,0	1056	1072	-	1115	5
1200	1485	98	48	-	130	30	12	1220,0	1260	-	-	1330	5
1400	1685	-	52	-	145	30	12	1420,0	1465	-	-	1530	5
1600	1930	-	58	-	160	35	12	1620,0	1668	-	-	1750	5
DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1

DN = Nominal Pipe Size (NPS), D = (O.D.) Outside Diameter, A = Outside Diameter of Neck , B1 = Bore of Type 101 and 112 Flanges, C1 = Thick. of Plate Flange,

C2 = Thick. of WN Or Boss Flanges , N1 = Diameter of Weld Neck Flanges, N2 = Diameter of Boss, R = corner Radius, H1 = Boss Flange Length,

H2 = Weld Neck Length, H3 = Length of Neck :

BS4504 Pn16 Flange Bolting Chart

DN	K	L	No	Size
millimeter	millimeter	millimeter	-	millimeter
10	60	14	4	M12
15	65	14	4	M12
20	75	14	4	M12
25	85	14	4	M12
32	100	18	4	M16
40	110	18	4	M16
50	125	18	4	M16
65	145	18	8**	M16
80	160	18	8	M16
100	180	18	8	M16
125	210	18	8	M16
150	240	22	8	M20
200	295	22	12	M20
250	355	26	12	M24
300	410	26	12	M24
350	470	26	16	M24
400	525	30	16	M27
450	585	30	20	M27
500	650	33	20	M30
600	770	36	20	M33
700	840	36	24	M33
800	950	39	24	M36
900	1050	39	28	M36
1000	1170	42	28	M39
1200	1390	48	32	M45
1400	1590	48	36	M45
1600	1820	56	40	M52
DN	K	L	No	Size

K = Diameter Of Bolt Circle, L = Diameter Of Bolt Hole,

Number = No. of Holes , Size = Bolts Size

BS4504 Pn25 Flange Dimensions

DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1
10	90	14	16	22	35	6	3	17,2	28	30	18	40	2
15	95	14	16	22	38	6	3	21,3	32	35	22	45	2
20	105	16	18	26	40	6	4	26,9	40	45	27,5	58	2
25	115	16	18	28	40	6	4	33,7	46	52	34,5	68	2
32	140	18	18	30	42	6	5	42,4	56	60	43,5	78	2
40	150	18	18	32	45	7	5	48,3	64	70	49,5	88	3
50	165	20	20	34	48	8	5	60,3	74	84	61,5	102	3
65	185	22	22	38	52	10	6	76,1	92	104	77,5	122	3
80	200	24	24	40	58	12	6	88,9	110	118	90,5	138	3
100	235	26	24	44	65	12	6	114,3	134	145	116	162	3
125	270	28	26	48	68	12	6	139,7	162	170	141,5	188	3
150	300	30	28	52	75	12	8	168,3	190	200	170,5	218	3
200	360	32	30	52	80	16	8	219,1	244	256	221,5	278	3
250	425	35	32	60	88	18	10	273,0	296	310	276,5	335	3
300	485	38	34	67	92	18	10	323,9	350	364	327,5	395	4
350	555	42	38	72	100	20	10	355,6	398	418	359,5	450	4
400	620	46	40	78	110	20	10	406,4	452	472	411,0	505	4
450	670	50	42	84	110	20	12	457,0	500	520	462,0	555	4
500	730	56	44	90	125	20	12	508,0	558	580	513,5	615	4
600	845	68	46	100	125	20	12	610,0	660	684	616,5	720	5
700	960	-	46		125	20	12	711,0	760			820	5
800	1085	-	50		135	22	12	813,0	864		-	930	5
900	1185	-	54		145	24	12	914,0	968		-	1030	5
1000	1320	-	58		155	24	12	1016,0	1070		-	1140	5
1200	1530	-	-	-			12	1220,0		-	-	1350	5
1400	1755	-	-	-			12	1420,0		-	-	1560	5
1600	1975	-	-	-			12	1620,0		-	-	1780	5
DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1

DN = Nominal pipe size (NPS), D = (O.D.) Outside Diameter, A = Outside Diameter of Neck , B1 = Bore of Type 101 and 112 Flanges,
C1 = Thick. of Plate Flange, C2 = Thickness of WN Or Boss Flange,
N1 = Diameter of Weld Neck Flanges,N2 = Diameter of Boss , R = corner Radius, H1 = Boss Flange Length,
H2 = Weld Neck Length, H3 = Length of Neck :

BS4504 Pn25 Flange Bolting Chart

DN	K	L	No	Size
millimeter	millimeter	millimeter	-	millimeter
10	60	14	4	M12
15	65	14	4	M12
20	75	14	4	M12
25	85	14	4	M12
32	100	18	4	M16
40	110	18	4	M16
50	125	18	4	M16
65	145	18	8	M16
80	160	18	8	M16
100	190	22	8	M20
125	220	26	8	M24
150	250	26	8	M24
200	310	26	12	M24
250	370	30	12	M27
300	430	30	16	M27
350	490	33	16	M30
400	550	36	16	M33
450	600	36	20	M33
500	660	36	20	M33
600	770	39	20	M36
700	875	42	24	M39
800	990	48	24	M45
900	1090	48	28	M45
1000	1210	56	28	M52
1200	1420	56	32	M52
1400	1640	62	36	M56
1600	1860	62	40	M56
DN	K	L	No	Size

K = Diameter Of Bolt Circle, L = Diameter Of Bolt Hole,
Number = No. of Holes , Size = Bolts Size

BS4504 Pn40 Flange Dimensions

DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1
10	90	14	16	22	35	6	3	17,2	28	30	18	40	2
15	95	14	16	22	38	6	3	21,3	32	35	22	45	2
20	105	16	18	26	40	6	4	26,9	40	45	27,5	58	2
25	115	16	18	28	40	6	4	33,7	46	52	34,5	68	2
32	140	18	18	30	42	6	5	42,4	56	60	43,5	78	2
40	150	18	18	32	45	7	5	48,3	64	70	49,5	88	3
50	165	20	20	34	48	8	5	60,3	74	84	61,5	102	3
65	185	22	22	38	52	10	6	76,1	92	104	77,5	122	3
80	200	24	24	40	58	12	6	88,9	110	118	90,5	138	3
100	235	26	24	44	65	12	6	114,3	134	145	116	162	3
125	270	28	26	48	68	12	6	139,7	162	170	141,5	188	3
150	300	30	28	52	75	12	8	168,3	190	200	170,5	218	3
200	375	36	34	52	88	16	8	219,1	244	260	221,5	285	3
250	450	42	38	60	105	18	10	273	306	312	276,5	345	3
300	515	48	42	67	115	18	10	323,9	362	380	327,5	410	4
350	580	54	46	72	125	20	10	355,6	408	424	359,5	465	4
400	660	60	50	78	135	20	10	406,4	462	478	411,0	535	4
450	685	66	50	84	135	20	12	457,0	500	522	462,0	560	4
500	755	72	52	90	140	20	12	508,0	562	576	513,5	615	4
600	890	84	60	100	150	20	12	610,0	666	686	616,5	735	5
DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1

BS4504 Pn40 Flange Bolting Chart

DN	K	L	No	Size
millimeter	millimeter	millimeter	-	millimeter
10	60	14	4	M12
15	65	14	4	M12
20	75	14	4	M12
25	85	14	4	M12
32	100	18	4	M16
40	110	18	4	M16
50	125	18	4	M16
65	145	18	8	M16
80	160	18	8	M16
100	190	22	8	M20
125	220	26	8	M24
150	250	26	8	M24
200	320	30	12	M27
250	385	33	12	M30
300	450	33	16	M30
350	510	36	16	M33
400	585	39	16	M36
450	610	39	20	M36
500	670	42	20	M39
600	795	48	20	M45

K = Diameter Of Bolt Circle, L = Diameter Of Bolt Hole,
Number = No of Holes , Size = Bolts Sizes

Check British Standard 4504 Welding Neck Flange Weight Chart Table, Held Wide Stock Of BS4504 PN10 Socket Weld Flanges In Mumbai, India.

BS 4504 Plate Flange Dimensions

BS 4504 Welding Neck Flange Dimensions

BS 4504 Threaded Flange Dimensions

EN BS 3293 Flanges Dimensions

Rating Of	NPS mm	O.D. Flanges O	Thick. OF Flanges QA	Overall Height YY	Overall Height YS	Slip On Bore SB	Diameter Of Hub X	Diameter Of Weld Neck AW	PCD P	Holes Number N	Hole Diameter HD	Diameter Of RF R	RTJ RJ Diameter K	Diameter OF Ring Pitch RP	Depth Of Groove E	Width Of Groove F	Number Of Ring RN	Length Of Stud Bolts RF RTJ
150	650	870.0	50.9	127.1	85.8	666.7	724.0	660.5	806.4	24	34.9	743.0						170
	700	927.2	52.4	128.6	87.3	717.5	781.1	711.3	863.6	28	34.9	793.8						180
	750	984.3	53.9	130.2	89.0	768.3	831.9	762.1	914.4	28	34.9	857.3						180
	800	1060.5	57.2	133.4	92.1	819.1	889.1	812.9	977.9	28	41.2	908.1						200
	850	1111.3	58.8	135.0	93.7	869.9	939.9	863.7	1028.7	32	41.2	958.9						205
	900	1168.5	60.4	136.6	95.3	920.7	997.0	914.5	1085.8	32	41.2	1022.4						205
	950	1238.3	60.4	136.6	95.3	971.5	1060.5	965.3	1149.3	32	41.2	1073.2						205
	1000	1289.1	63.6	139.8	98.5	1022.3	1111.3	1016.1	1200.1	36	41.2	1124.0						210
	1050	1346.3	66.7	142.9	101.7	1073.1	1168.5	1066.9	1257.3	36	41.2	1193.9						215
	1100	1403.4	66.7	142.9	101.7	1123.9	1219.3	1117.7	1314.4	40	41.2	1244.7						215
	1150	1454.2	68.3	144.5	103.2	1174.7	1270.1	1168.5	1365.2	40	41.2	1295.5						225
	1200	1511.4	69.9	146.1	104.8	1225.5	1327.2	1219.3	1422.4	44	41.2	1359.0						225
300	650	971.6	79.4	184.2		666.7	720.8	666.8	876.3	28.0	44.4	749.4	809.6	749.3	12.7	19.8	93	250	280
	700	1035.1	85.8	196.9		717.5	774.8	717.6	939.8	28.0	44.4	800.2	860.4	800.1	12.7	19.8	94	260	295
	750	1092.3	92.1	209.6		768.3	825.5	768.4	996.9	28.0	47.6	857.3	917.5	857.2	12.7	19.8	95	280	315
	800	1149.4	98.5	222.3		819.1	881.1	819.2	1054.1	28.0	50.8	914.5	984.2	914.4	14.2	23.0	96	300	330
	850	1206.6	101.7	231.8		871.5	936.7	871.6	1104.9	28.0	50.8	965.3	1035.0	965.2	14.2	23.0	97	305	340
	900	1270.1	104.8	241.4		922.3	990.7	922.4	1168.4	32.0	53.9	1022.4	1092.2	1022.3	14.2	23.0	98	320	350
600	650	1016.1	107.9	222.3		666.7	747.7	671.5	914.4	28	50.8	749.4	809.6	749.3	12.7	19.8	93	330	365
	700	1073.2	111.2	235.0		717.5	803.3	724.0	965.2	28	53.9	800.2	860.4	800.1	12.7	19.8	94	345	375
	750	1130.4	114.4	247.7		768.3	862.1	774.8	1022.3	28	53.9	857.3	917.5	857.2	12.7	19.8	95	350	380
	800	1193.9	117.5	260.4		819.9	917.6	825.6	1079.5	28.0	60.3	914.5	984.2	914.4	14.2	23.0	96	370	410
	850	1244.7	120.7	269.9		869.9	973.2	877.9	1130.3	28.0	60.3	965.3	1035.0	965.2	14.2	23.0	97	375	415
	900	1314.5	123.9	282.6		920.7	1031.9	928.7	1193.8	28.0	66.6	1022.4	1092.2	1022.3	14.2	23.0	98	395	435

DIN BS 3293 Flanges Weight Chart

Series a BS1560 Flange Dimensions

NPS	DN	inner ring id (I.D.)					Element Id (I.D.)					Element Od (O.D.)		Outer Ring Od (O.D.)
		CLASS					CLASS					CLASS		CLASS
		150 300	400 600	900	1500	2500	150 300	400 600	900	1500	2500	150 600	900 2500	150	300	400	600	900	1500	2500
1/2”	15	14.2	14.2	-	14.2	14.2	19.1	19.1	-	19.1	19.1	31.8	31.8	47.8	54.1	-	54.1	-	63.5	69.9
3/4”	20	20.6	20.6	-	20.6	20.6	25.4	25.4	-	25.4	25.4	39.6	39.6	57.2	66.8	-	66.8	-	69.9	76.2
1”	25	26.9	26.9	-	26.9	26.9	31.8	31.8	-	31.8	31.8	47.8	47.8	66.8	73.2	-	73.2	-	79.5	85.9
11/4”	32	38.1	38.1	-	33.3	33.3	47.8	47.8	-	39.6	39.6	60.5	60.5	76.2	82.6	-	82.6	-	88.9	104.9
11/2”	40	44.5	44.5	-	41.4	41.4	54.1	54.1	-	47.8	47.8	69.9	69.9	85.9	95.3	-	95.3	-	98.6	117.6
2”	50	55.6	55.6	-	52.3	52.3	69.9	69.9	-	58.7	58.7	85.9	85.9	104.9	111.3	-	111.3	-	143.0	146.1
21/2”	65	66.5	66.5	-	63.5	63.5	82.6	82.6	-	69.9	69.9	98.6	98.6	124.0	130.3	-	130.3	-	165.1	168.4
3”	80	81.0	81.0	78.7	78.7	78.7	101.6	101.6	95.3	92.2	92.2	120.7	120.7	136.7	149.4	-	149.4	168.4	174.8	196.9
4”	100	106.4	102.6	102.6	97.8	97.8	127.0	120.7	120.7	117.6	117.6	149.4	149.4	174.8	181.1	177.8	193.8	206.5	209.6	235.0
5”	125	131.8	128.3	128.3	124.5	124.5	155.7	147.6	147.6	143.0	143.0	177.8	177.8	196.9	215.9	212.9	241.3	247.7	254.0	279.4
6”	150	157.2	154.9	154.9	147.3	147.3	182.6	174.8	174.8	171.5	171.5	209.6	209.6	222.3	251.0	247.7	266.7	289.1	282.7	317.5
8”	200	215.9	205.7	196.9	196.9	196.9	233.4	225.6	222.3	215.9	215.9	263.7	257.3	279.4	308.1	304.8	320.8	358.9	352.6	387.4
10”	250	268.2	255.3	246.1	246.1	246.1	287.3	274.6	276.4	266.7	270.0	317.5	311.2	339.9	362.0	358.9	400.1	435.1	435.1	476.3
12”	300	317.5	307.3	292.1	292.1	292.1	339.9	327.2	323.9	323.9	317.5	374.7	368.3	409.7	422.4	419.1	457.2	498.6	520.7	549.4
14”	350	349.3	342.9	320.8	320.8	-	371.6	362.0	355.6	362.0	-	406.4	400.1	450.9	485.9	482.6	492.3	520.7	577.9	-
16”	400	400.1	389.9	374.7	368.3	-	422.4	412.8	412.8	406.4	-	463.6	457.2	514.4	539.8	536.7	565.2	574.8	641.4	-
18”	450	449.3	438.2	425.5	425.5	-	474.7	469.9	463.6	463.6	-	527.1	520.7	549.4	596.9	593.9	612.9	638.3	704.9	-
20”	500	500.1	489	482.6	476.3	-	525.5	520.7	520.7	514.4	-	577.9	571.5	606.6	654.1	647.7	682.8	698.5	755.7	-
24”	600	603.3	590.6	590.6	577.9	-	628.7	628.7	628.7	616.0	-	685.8	679.5	717.6	774.7	768.4	790.7	838.2	901.7	-

Refer BS 4504 Plate Flange Pressure Rating Formula And Best Deals On Bulk Procurement Of Flange British Standard 4504 For Piping Connection.

DIN 86029 BS 4504 Flanges Pressure Ratings

				Temperature
BS 4504 FLANGE TABLE	-10°C to 200°C	250°C	300°C	350°C	400°C	425°C	450°C	475°C

6	6	5.5	5	–	–	–	–	–

10	10	9	8	7	6	–	–	–

16	16	15	13	11	9	–	–	–

25	25	24	21	17	14	12	9	6

40	40	38	33	28	23	20	15	10

64	64	61	53	44	36	32	24	16

100	100	95	83	70	57	50	37	25

160	160	152	132	112	92	80	60	40

PN10 BS 4504 Forged Flange Weight Chart In Kg

Flange Standard	Flange Class	Flange Diameter	Diameter Of Bolt Circle	Number of Bolts	Bolt Size	Diameter of Bolt Hole
AS4087 Flange	PN14 Flange	95	67	4	M12	14
AS 2129 Flange	Table C Flanges	95	67	4	13	14
	Table D Flanges	95	67	4	13	14
	Table E Flanges	95	67	4	13	14
	Table F Flanges	95	67	4	13	14
	Table H Flanges	114	83	4	16	17
	Table J Flanges	114	83	4	16	17
ANSI B16.5 Flanges	ANSI 150 Flanges	89	60	4	13	16
	ANSI 300 Flanges	95	67	4	13	16
	ANSI 600 Flanges	95	67	4	13	16
	ANSI 900 Flanges	121	83	4	19	22
	ANSI 1500 Flanges	121	83	4	19	22
BS 4504 (DIN) Flange	PN6 Flanges	80	55	4	M10	11
	PN10 Flanges	95	65	4	M12	14
	PN16 Flanges	95	65	4	M12	14
	PN20 Flanges	90	60.5	4	M14	16
	PN25 Flanges	95	65	4	M12	14
	PN40 Flanges	95	65	4	M12	14

British Standard BS 4504 PN16 Thickness Calculation For Pressure Vessel, Get Flange Standard BS 4504 Best Price & Fast Delivery.

British Standard BS 4504 Bolts Chart

	Class 150 Flanges				Class 300 Flanges				Class 600 Flanges
NPS	# Bolts And Studs	Diameter of Bolts And Studs	Stud Length		# Bolts And Studs	Diameter of Bolts And Studs	Stud Length		# Bolts And Studs	Diameter of Bolts And Studs	Stud Length
			1/16 RF	RTJ			1/16 RF	RTJ			1/4 RF	RTJ
1/2	4	0.50	2-1/4	–	4	0.50	2-1/2	3	4	0.50	3	3
3/4	4	0.50	2-1/2	–	4	0.63	3	3-1/2	4	0.63	3-1/2	3-1/2
1	4	0.50	2-1/2	3	4	0.63	3	3-1/2	4	0.63	3-1/2	3-1/2
1-1/4	4	0.50	2-3/4	3-1/4	4	0.63	3-1/4	3-3/4	4	0.63	3-3/4	3-3/4
1-1/2	4	0.50	2-3/4	3-1/4	4	0.75	3-1/2	4	4	0.75	4-1/4	4-1/4
2	4	0.63	3-1/4	3-3/4	8	0.63	3-1/2	4	8	0.63	4-1/4	4-1/4
2-1/2	4	0.63	3-1/2	4	8	0.75	4	4-1/2	8	0.75	4-3/4	4-3/4
3	4	0.63	3-1/2	4	8	0.75	4-1/4	4-3/4	8	0.75	5	5
3-1/2	8	0.63	3-1/2	4	8	0.75	4-1/4	5	8	0.88	5-1/2	5-1/2
4	8	0.63	3-1/2	4	8	0.75	4-1/2	5	8	0.88	5-3/4	5-3/4
5	8	0.75	3-3/4	4-1/4	8	0.75	4-3/4	5-1/4	8	1.00	6-1/2	6-1/2
6	8	0.75	4	4-1/2	12	0.75	4-3/4	5-1/2	12	1.00	6-3/4	6-3/4
8	8	0.75	4-1/4	4-3/4	12	0.88	5-1/2	6	12	1.13	7-1/2	7-3/4
10	12	0.88	4-1/2	5	16	1.00	6-1/4	6-3/4	16	1.25	8-1/2	8-1/2
12	12	0.88	4-3/4	5-1/4	16	1.13	6-3/4	7-1/4	20	1.25	8-3/4	8-3/4
14	12	1.00	5-1/4	5-3/4	20	1.13	7	7-1/2	20	1.38	9-1/4	9-1/4
16	16	1.00	5-1/4	5-3/4	20	1.25	7-1/2	8	20	1.50	10	10
18	16	1.13	5-3/4	6-1/4	24	1.25	7-3/4	8-1/4	20	1.63	10-3/4	10-3/4
20	20	1.13	6-1/4	6-3/4	24	1.25	8	8-3/4	24	1.63	11-1/4	11-1/2
24	20	1.25	6-3/4	7-1/4	24	1.50	9	10	24	1.88	13	13-1/4

BS 4504 Pn10 And PN16 Thickness Tolerance

BS 4504 Flange Wall Thickness
NPS (Normal Pipe Sizes)	Outside Daimeter (O.D.)	Schedule 10	Schedule 20	Schedule 30	STD Wall	Schedule 40	Schedule 60	EXT Hvy	Schedule 80	Schedule 100	Schedule 120	Schedule 140	Schedule 160	XX Hvy
½	0.84	0.083	...	...	0.109	0.109	...	0.147	0.147	...	...	...	0.188	0.294
¾	1.05	0.083	...	...	0.113	0.113	...	0.154	0.154	...	...	...	0.219	0.308
1	1.315	0.109	...	...	0.133	0.133	...	0.179	0.179	...	...	...	0.25	0.358
1 ¼	1.66	0.109	...	...	0.14	0.14	...	0.191	0.191	...	...	...	0.25	0.382
1 ½	1.9	0.109	...	...	0.145	0.145	...	0.2	0.2	...	...	...	0.281	0.4
2	2.375	0.109	...	...	0.154	0.154	...	0.218	0.218	...	...	...	0.344	0.436
2 ½	2.875	0.12	...	...	0.203	0.203	...	0.276	0.276	...	...	...	0.375	0.552
3	3.5	0.12	...	...	0.216	0.216	...	0.3	0.3	...	...	...	0.438	0.6
3 ½	4	0.12	...	...	0.226	0.226	...	0.318	0.318	...	...	...	...	0.636
4	4.5	0.12	...	...	0.237	0.237	...	0.337	0.337	...	0.438	...	0.531	0.674
5	5.563	0.134	...	...	0.258	0.258	...	0.375	0.375	...	0.5	...	0.625	0.75
6	6.625	0.134	...	...	0.28	0.28	...	0.432	0.432	...	0.562	...	0.719	0.864
8	8.625	0.148	0.25	0.277	0.322	0.322	0.406	0.5	0.5	0.594	0.719	0.812	0.906	0.875
10	10.75	0.165	0.25	0.307	0.365	0.365	0.5	0.5	0.594	0.719	0.844	1	1.125	1
12	12.75	0.18	0.25	0.33	0.375	0.406	0.562	0.5	0.688	0.844	1	1.125	1.312	1
14	14	0.25	0.312	0.375	0.375	0.438	0.594	0.5	0.75	0.938	1.094	1.25	1.406	...
16	16	0.25	0.312	0.375	0.375	0.5	0.656	0.5	0.844	1.031	1.219	1.438	1.594	...
18	18	0.25	0.312	0.438	0.375	0.562	0.75	0.5	0.938	1.156	1.375	1.562	1.781	...
20	20	0.25	0.375	0.5	0.375	0.594	0.812	0.5	1.031	1.281	1.5	1.75	1.969	...
22	22	0.25	...	...	0.375	...	...	0.5	...	...	....	....	....	....
24	24	0.25	0.375	0.562	0.375	0.688	0.969	0.5	1.219	1.531	1.812	2.062	2.344	....
26	26	....	....	....	0.375	....	....	0.5	....	....	....	....	....	....
30	30	0.312	0.5	0.625	0.375	....	....	0.5	....	....	....	....	....	....
36	36	0.312	0.5	0.625	0.375	0.75	....	0.5	....	....	....	....	....	....
40	40	....	....	....	0.375	....	....	0.5	....	....	....	....	....	....
42	42	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
48	48	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..

BS4504 Gasket Dimensions

NPS	Gasket I.D.	Gasket O.D.
NPS	Gasket I.D.	Class 150	Class 300	Class 400	Class 600	Class 900
1/2	0.84	1.875	2.125	2.125	2.125	2.50
3/4	1.06	2.25	2.625	2.625	2.625	2.75
1	1.31	2.625	2.875	2.875	2.875	3.125
1 1/4	1.66	3	3.25	3.25	3.25	3.50
1 1/2	1.91	3.375	3.75	3.75	3.75	3.875
2	2.38	4.125	4.375	4.375	4.375	5.625
2 1/2	2.88	4.875	5.125	5.125	5.125	6.50
3	3.50	5.375	5.875	5.875	5.875	6.625
4	4.50	6.875	7.125	7.00	7.625	8.125
5	5.56	7.75	8.50	8.375	9.50	9.75
6	6.62	8.75	9.875	9.75	10.50	11.375
8	8.62	11	12.125	12.00	12.625	14.125
10	10.75	13.375	14.25	14.125	15.75	17.125
12	12.75	16.125	16.625	16.50	18.00	19.625

BS 4504 Standard Flanges Tolerances

Dimensions	Range	BS 4504 Tolerance
Dimensions	Range	Millimeter
Flange Facings	Eccentricity of machined facing diameters	< DN 100	1.0
	Eccentricity of machined facing diameters	> DN 100	2.0
	a (type B facing height)	2 millimeter	+0, -1.0
		3 millimeter	+0, -2.0
		4 millimeter	+0, -3.0
		5 millimeter	+0, -4.0
		6 millimeter	+0, -5.0
	b (type C and E facing height)	All	+0.5, -0
	b (type G facing height)	All	+0, -0.5
	b (type H facing height, outer)	All	+0.2, -0
	c (type D and F facing height)	All	+0, -0.5
	d (type H facing height, inner)	All	+0.5, -0
	B and E (facing diameters)	All	+0, -0.5
	C and D (facing diameters)	All	+0.5, -0
Surface Finish	Facing types A, B, E and F	All, turning	Ra = 3.2 µm min 12.5 µm max
	Facing types A, B, E and F	All, other than turning	Ra = 3.2 µm min 6.3 µm max
	Facing types C, D, G and H	All	Ra = 0.8 µm min 3.2 µm max
Flange Drilling Details	B (diameter of bolt circle)	Bolt sizes M10 to M24	±0.9
	B (diameter of bolt circle)	Bolt sizes M27 to M45	±1.4
	Centre to centre of adjacent bolt holes	Bolt sizes M10 to M24	±0.45
	Centre to centre of adjacent bolt holes	Bolt sizes M27 to M45	±0.7
All	A (outside diameter)	< DN 150	±2.0
		> DN 150 < DN 500	±3.0
		> DN 500 < DN 1200	±5.0
		> DN 1200 < DN 1800	±7.0
		> DN 1800	±10.0
	C (flange thickness, machined on both faces)	< 18 millimeter thickness	±1.0
		> 18 millimeter < 50 millimeter thickness	±1.0
		> 50 mm thickness	±1.0
	C (flange thickness, machined on front face)	< 18 mm thickness	+2.0, -1.0
		> 18 mm < 50 mm thickness	+4.0, -1.5
		> 50 mm thickness	+7.0, -2.0
Weld Neck Flanges, Code 111	B (outside diameter of hub at welding end)	< DN 125	+3.0, -0
		> DN 125 < DN 1200	+4.5, -0
		> DN 1200	+6.0, -0
	F (hub diameter)	< DN 50	+0, -2.0
		> DN 50 < DN 150	+0, -4.0
		> DN 150 < DN 300	+0, -6.0
		> DN 300 < DN 600	+0, -8.0
		> DN 600 < DN 1200	+0, -10.0
	D (length through hub)	< DN 80	±1.5
		> DN 80 < DN 250	±2.0
		> DN 250	±3.0
Slip on, Code 112 and Threaded,Code 113	E (slip on flange hub diameter)B (threaded flange hub diameter)	< DN 50	+1.0, -0
		> DN 50 < DN 150	+2.0, -0
		> DN 150 < DN 300	+4.0, -.0
		> DN 300 < DN 600	+8.0, -0
		> DN 600 < DN 1200	+12.0, -0
		> DN 1200 < DN 1800	+16.0, -0
		> DN 1800	+20.0, -0
	B (slip on bore diameter)	< DN 100	+0.5, -0
		> DN 100 < DN 400	+1.0, .0
		> DN 400 < DN 600	+1.5, .0
		> DN 600	+3.0, -0
	D (length through hub)	Same as Weld Neck D
Blank Flanges, Code 105	B (flange thickness)	Same as C for all other flanges
Blank Flanges, Code 105	C (unmachined centre portion)	Maximum specified

Depending on the need for strength, the material could differ such as the Duplex Steel BS 4504 Flanges or the Inconel BS 4504 Flanges. These differences are responsible for the cost differences. Pressure classes such as the DIN86029 PN10 BS 4504 Flanges also determine the price of BS 4504 Flange as well. Apart from the pressure classes, the flanges sometimes will have to deal with specific substances. For instance, the Copper Nickel BS 4504 Flanges are very much resistant to sulfuric acid corrosion. Alloy 20 BS 4504 Flanges is an austenitic alloy that is also very much resistant to sulfuric acid corrosion.

Contact US For Buy Type Of BS 4504 Flanges

bs 4504 PN16 Flanges

BS 4504 PN6Flange

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British Standard 4504 PN 10 Flanges

BS 4504 forged flange

Flange Standard Bs 4504

British Standard BS 4504

BS 4504 Blind Flanges

BS 4504 Weld Neck Flages

British Standard 4504 Slip On Flanges

BS 4504 Socket Weld Flanges

British Standard 4504 Threaded Flanges

Alloy Steel BS 4504 pn 6 flange belong to PN6 pressure class and is made up of alloy steel. There are Carbon Steel BS 4504 Flange versions as well. The Nickel Alloy BS 4504 pn 10 flange is made up of nickel alloy which is more corrosion resistant than carbon steel. BS 4504 Flange Dimensions vary according to the standard and required application. If the pressure is high and a series A flange is considered, the wall thicknesses are usually higher. Hastelloy BS 4504 pn16 flange is a higher pressure containment class and therefore the wall thickness would be higher.