Alloy Steel Flanges manufacturer in India

Exporter & supplier of Low Alloy Blind and Slip On Flanges in Mumbai.

Alloy Steel Flanges Manufacturer In India

Alloy Steel Flanges Manufacturer In India

Alloy Steel Lap Joint Flange

Alloy Steel Lap Joint Flange

Low Alloy Steel Blind Flange

Low Alloy Steel Blind Flange

Table Of Contents


What Is Low Alloy Steel Flanges Used For?

Alloy steel lap joint flange is the one with a stub end and a ring. The ring could be adjusted after welding the stub end to one of the pipe. ASTM A182 WNRF Flanges is a welded neck flange. The alloy steel flange material is a wide range of collection. There are different types and shapes involved in this collection. Alloy steel Flanges manufacturer in India produce different types of alloy steel flanges. There are alloy steel Flanges suppliers in Maharashtra as well.


Alloy Steel Flanges Manufacturers In India

What Is Alloy Steel RTJ Flange?

The Alloy Steel RTJ Flange has a ring type joint for gasket fixture and therefore is leak proof. There are different pressure classes as well. The ASME SA182M Alloy Steel Class 300 Flange is a medium level pressure containment flange. It has a neck welded to it for better grip and cover over the flange. Alloy Steel Industrial Flanges are produced in different designs for different purposes.


Different Types Of Alloy Steel Flanges?

Alloy Steel Flat Flange is the one with the flat face for much surface to allow the gasket to sit on the face of the flange. The different standards and classifications allow for different properties such as the ASTM A182 Alloy Steel EN 1092-1 Flanges and the ASTM A182 Alloy Steel Pipe Flanges. The different types for example, Alloy Steel Slip On Flanges and the A182 Weld Neck Flange serve different purposes. The less common ANSI B16.5 Alloy Orifice Flanges are also available. Pipe closing systems or the AS A182 Blind Flanges provide a sealed end to a piping system. Threaded flanges such as the Alloy Steel ASTM A182 Threaded Flanges could be attached to pipes without welding through threads. Socket flanges such as AS Socket Weld Flanges come with a socket for specific used cases. Alloy Steel Flanges come in two pieces where the pieces are welded together and with the pipe. ANSI B16.5, B16.47, B16.48 Alloy Steel Forged Flanges are different standards which govern the bore diameter of the flange. We are a reliable Alloy Steel Flanges Manufacturer In India.


Standard Specification Of AS Flanges

Material Specification Of : Alloy Steel Flanges
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"
Thickness Normal Pipe Size ≤ 18
Bore Diameter Normal Pipe ≤ 10
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 Flange, Expanding Flange, Reducing Flange, Weldoflange
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
ASTM A105 Carbon Steel Blind Flange Price List
Type Of Flanges Size (inch) Material Grade Class Price In India (INR)
Blind Flanges 3/4" Alloy Steel ASTM A182 F5 Class 150 160.00
BLRF 1" Alloy Steel ASTM A182 F5 Class 150 150.32
BLRF 1-1/2" Alloy Steel ASTM A182 F5 Class 150 210.00
BLRF 2" Alloy Steel ASTM A182 F5 Class 150 300.00
BLRF 3" Alloy Steel ASTM A182 F11 Class 150 379.76
Slip On Flanges 2" ASTM A182 F11 Alloy Steel Class 150 240.34
SORF 3" ASTM A182 F11 Alloy Steel Class 150 406.34
SORF 10" ASTM A182 F11 Alloy Steel Class 150 4500.34
Weld Neck Flanges 2" X SCH STD ASTM A182 F22 Alloy Steel Class 150 400.00
WNRF 3" X SCH STD ASTM A182 F22 Alloy Steel Class 150 665.00
WNRF 4" X SCH STD ASTM A182 F22 Alloy Steel Class 150 799.00
WNRF 6" X SCH STD ASTM A182 F22 Alloy Steel Class 150 1505.00
Socket Weld Flanges 3/4" X SCH XS ASTM A182 F22 Alloy Steel Class 150 199.00
SWRF 1" X SCH XS ASTM A182 F22 Alloy Steel Class 150 295.76
SWRF 1-1/2” X SCH XS ASTM A182 F22 Alloy Steel Class 150 480.00

Please note this is an approx Price of Alloy Steel Lap Joint Flanges in India. For final ASTM A182 AS Flanges Price List Please Call on 91 - 22 - 67437342 or drop an Email to info@rajtilakmetal.com.


Standard Dimensions of Low Alloy Steel Weld Neck Flanges and Compare Prices Before You Buy AS 4087 Socket Weld Flanges in India.


Industrial Alloy Steel Flanges Dimensions Chart

Industrial Alloy Steel Flanges Dimensions Chart


NPS O.D. of Flange Flanges Thickness Diameter of RF Diameter of Hub at Base Lengtd Tdru Hub Bore or Diameter Dia. of Hub at Bevel Radius of Fillet Deptd of Socket
Welding (WN) Neck Slip-On (SORF) Threaded (NPT) Socket (SWRF) Lap Joint (Loose) Slip-on (SORF) Socket (SWRF) Lap Joint (Loose)
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2

Alloy Steel Blind Flange Weight Chart According to ASME B16.5 And Get a Live Quote Now For AS 2129 Flanges.


Alloy Steel Lap Joint Flange Schedule Chart

Nominal Pipe Sizes (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (Loose) Blind (BLRF) Weld Neck (WRNR)
½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268

ASTM A182 AS Flanges Equivalent Table

Group Of Material Name Type Of UNS Number Forging Specification Casting Specification Equivalent DIN Number DIN WNR. Number Application For
Alloy Steel Moly Steel C-1/2Mo K12822 A182-F1 cl2 A217-WC1 15M03 1.5415 Up to 470ºC* (875ºF)
Chrome Moly 1.1/4Cr-1/2Mo K11572 ASTM A182-F11 cl2 A217-WC6 13CRM044 1.7335 Up to 593ºC (1100ºF)
2.1/4Cr-1Mo K21590 ASTM A182-F22 cl3 A217-WC9 10CRM0910 1.7380 Up to 593ºC (1100ºF), HP steam
5Cr-1/2Mo K41545 ASTM A182-F5/F5a A217-C5 12CRMO195 1.7362 High temp refinery service
9Cr-1Mo K90941 ASTM A182-F9 A217-C12 X 12 CrMo 9 1 1.7386 High temp erosive refinery service
9Cr-1Mo-V ASTM A182-F91 A217-C12A X 10 CrMoVNb 9 1 1.4903 High pressure steam

Alloy Steel Slip On Flange Pressure Rating Chart And AS Weld Neck Flanges Thickness Calculation For Pressure Vessel.

Hight Alloy Steel Flange Pressure Rating Class

ANSI/ASME B16.5 Alloy Steel Flanges Pressure Rating
Temperature °F Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
-20 to 100 265 695 925 1390 2085 3470 5785
200 260 680 905 1360 2035 3395 5660
300 230 655 870 1305 1955 3260 5435
400 200 640 855 1280 1920 3200 5330
500 170 620 830 1245 1865 3105 5180
600 140 605 805 1210 1815 3025 5040
650 125 590 785 1175 1765 2940 4905
700 110 570 755 1135 1705 2840 4730
750 95 530 710 1065 1595 2660 4430
800 80 510 675 1015 1525 2540 4230
850 65 485 650 975 1460 2435 4060
900 50 450 600 900 1350 2245 3745
950 35 280 375 560 845 1405 2345
1000 20 165 220 330 495 825 1370

ASME A182 Alloy Steel Flanges Chemical Composition

Properties Of Element Low Alloy Steel Flanges Medium Alloy Steel Flanges
ASTM A182 F11 Class 2 ASTM A182 F22 Class 3 ASTM A182 F5 ASTM A182 F9
CARBON 0.10-0.20 0.05-0.15 0.15 MAXIMUM 0.15 MAXIMUM
MANGANESE 0.30-0.80 0.30-0.60 0.30-0.60 0.30-0.60
PHOSPHORUS MAXIMUM 0.040 0.040 0.03 0.030
SULFUR MAXIMUM 0.040 0.040 0.03 0.030
SILICON 0.50-1.00 0.50 MAXIMUM 0.50 MAXIMUM 0.50-1.00
NICKEL MAXIMUM 0.50
CHROMIUM 1.00-1.50 2.00-2.50 4.00-6.00 8.0-10.0
MOLYBDENUM 0.44-0.65 0.87-1.13 0.44-0.65 0.90-1.10
OPPER MA
COLUMBIUM MAXIMUM
VANDIUM MAXIMUM
TENSILE STRENGTH PSI (MPA) 70,000 (485) 75,000 (515) 70,000 (485) 85,000 (585)
YIELD STRENGTH PSI MINIMUM 40,000 (275) 45,000 (310) 40,000 (275) 55,000 (380)
ELONGATION 2” % MINIMUM 20 20 20 20
REDUCTION AREA % MINIMUM 30 30 35 40
HARDNESS (HB) MAXIMUM* 143 ~ 207 156 ~ 207 143 ~ 217 179 ~ 217

Alloy Steel Blind Flange Mechanical Properties

Gr. Tensile Strength Yield Strength (0.2%Offset) Elongation
ASTM/ASME A182 F1 275 485 20 %
ASTM/ASME A182 F5 275 485 20 %
ASTM/ASME A182 F9 380 585 20 %
ASTM/ASME A182 F11 205 415 20 %
ASTM/ASME A182 F12 275 485 20 %
ASTM/ASME A182 F22 205 415 20 %
ASTM/ASME A182 F91 380 585 20 %

AS 4087 Flanges Thickness Calculation

Alloy Steel Flanges 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 …….. …….. …….. …….. …….. ……..

Tolerance Chart Of Alloy Steel Pipe Flanges And Largest ASTM A182 AS Flange Supplier In India.

AS 2129 Flanges Tolerance Chart

Alloy Steel FlangesTolerance
A Outside Diameter (O.D.)
  • When Outside Diameter (O.D.) is 24" or less: ±1/16" (1.6 mm)
  • When Outside Diameter (O.D.) is over 24": ±1/8" (3.2 mm)
D Inside Diameter
  • 10" and smaller: ±1/32" (0.8 millimeter)
  • 12" thru 18": +1/8" (3.2 millimeter)
  • 20" and larger: -1/16" (1.6 millimeter)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 millimeter)
  • 1/4" Raised Face (RF), Tongue & Groove (T/G), (male & female), (m/f): ±1/64" (0.4 mm)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 millimeter), -1/32" (0.8 millimeter)
  • 6" and larger: +5/32" (4.0 millimeter), -1/32 (0.8 millimeter)
P Drilling
  • Bolt circle: ±1/16" (1.6 millimeter)
  • Bolt hole spacing: ±1/32" (0.8 millimeter)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 millimeter) max.
  • 3" and larger ±1/16" (1.6 millimeter) max.
C Thickness
  • 18" and smaller: ±1/8" (3.2 millimeter), -0"
  • 20" and larger: ±3/16" (4.8 millimeter), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 millimeter)
  • 12" and larger: ±1/8" (3.2 millimeter)

Alloy Steel Slip On Flange Bolt 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

 

Class 900 Flanges Class 1500 Flanges Class 2500 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
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
1/2 4 0.75 4-1/4 4-1/4 4 0.75 4-1/4 4-1/4 4 0.75 4-3/4 4-3/4
3/4 4 0.75 4-1/2 4-1/2 4 0.75 4-1/2 4-1/2 4 0.75 5 5
1 4 0.88 5 5 4 0.88 5 5 4 0.88 5-1/2 5-1/2
1-1/4 4 0.88 5 5 4 0.88 5 5 4 1.00 6 6
1-1/2 4 1.00 5-1/2 5-1/2 4 1.00 5-1/2 5-1/2 4 1.13 6-3/4 6-3/4
2 8 0.88 5-3/4 5-3/4 8 0.88 5-3/4 5-3/4 8 1.00 7 7
2-1/2 8 1.00 6-1/4 6-1/4 8 1.00 6-1/4 6-1/4 8 1.13 7-3/4 8
3 8 0.88 5-3/4 5-3/4 8 1.13 7 7 8 1.25 8-3/4 9
4 8 1.13 6-3/4 6-3/4 8 1.25 7-3/4 7-3/4 8 1.50 10 10-1/4
5 8 1.25 7-1/2 7-1/2 8 1.50 9-3/4 9-3/4 8 1.75 11-3/4 12-1/4
6 12 1.13 7-1/2 7-3/4 12 1.38 10-1/4 10-1/2 8 2.00 13-1/2 14
8 12 1.38 8-3/4 8-3/4 12 1.63 11-1/2 11-3/4 12 2.00 15 15-1/2
10 16 1.38 9-1/4 9-1/4 12 1.88 13-1/4 13-1/2 12 2.50 19-1/4 20
12 20 1.38 10 10 16 2.00 14-3/4 15-1/4 12 2.75 21-1/4 22
14 20 1.50 10-3/4 11 16 2.25 16 16-3/4
16 20 1.63 11-1/4 11-1/2 16 2.50 17-1/2 18-1/2
18 20 1.88 12-3/4 13-1/4 16 2.75 19-1/2 20-3/4
20 20 2.00 13-3/4 14-1/4 16 3.00 21-1/4 22-1/4
24 20 2.50 17-1/4 18 16 3.50 24-1/4 25-1/2

Alloy Steel Weld Neck Flange Gasket Size Chart

NPS Gasket I.D.
Gasket O.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

Buy ISO Certified Types Of Medium Alloy Steel Flanges

16 Inch, Class 900, ANSI B16.5, FF, Alloy Steel Slip On Flanges

16 Inch, Class 900, ANSI B16.5, FF, Alloy Steel Slip On Flanges

3 Inch, 300 LB, FF, Alloy Steel Socket Weld Flanges

3 Inch, 300 LB, FF, Alloy Steel Socket Weld Flanges

2 Inch, Class 300, SCh 60, Alloy Steel Blind Flanges

2 Inch, Class 300, SCh 60, Alloy Steel Blind Flanges

2 Inch, Class 300, Alloy Steel Weld Neck Flanges

2 Inch, Class 300, Alloy Steel Weld Neck Flanges

10 Inch, 600#, API 590, Alloy Steel Forged Flanges

10 Inch, 600#, API 590, Alloy Steel Forged Flanges

6 Inch, RF, 150LB, Dual Rated, Alloy Steel Raised Face Flanges

6 Inch, RF, 150LB, Dual Rated, Alloy Steel Raised Face Flanges

2 Inch, SCH 80, Class 150,  Alloy Steel Male and Female Flanges

2 Inch, SCH 80, Class 150, Alloy Steel Male and Female Flanges

2 Inch, SCH 80 ANSI B16.48, CL1500, Alloy Steel Bleed Ring

2 Inch, SCH 80 ANSI B16.48, CL1500, Alloy Steel Bleed Ring

10 Inch, CL300, SCH STD, ASME B16.5, Alloy Steel Plate Flanges

10 Inch, CL300, SCH STD, ASME B16.5, Alloy Steel Plate Flanges

30 Inch, 150LB, Raised Face, Alloy Steel Ring Type Joint Flanges

30 Inch, 150LB, Raised Face, Alloy Steel Ring Type Joint Flanges

30 Inch, SCH 40, Class 600 LB, RF, Alloy Steel Tongue & Groove Flanges

30 Inch, SCH 40, Class 600 LB, RF, Alloy Steel Tongue & Groove Flanges

10 Inch, Class 150 LB, SCH 40, Alloy Steel Reducing Flanges

10 Inch, Class 150 LB, SCH 40, Alloy Steel Reducing Flanges

ASTM A182, 12 Inch, Raised Face, Alloy Steel Threaded Flanges

ASTM A182, 12 Inch, Raised Face, Alloy Steel Threaded Flanges

3 Inch, 300#, SCH 80, ANSI B16.5, Alloy Steel Lap Joint Flanges

3 Inch, 300#, SCH 80, ANSI B16.5, Alloy Steel Lap Joint Flanges

36 Inch, BS 3293, Raised Face, 150#, Alloy Steel Long Weld Neck Flanges

36 Inch, BS 3293, Raised Face, 150#, Alloy Steel Long Weld Neck Flanges

40 Inch Class 150, Raised Face, BS 3293, Alloy Steel Spectacle Blind Flanges

40 Inch Class 150, Raised Face, BS 3293, Alloy Steel Spectacle Blind Flanges

10 Inch, SCH 10, 2500#, Alloy Steel Square Flange

10 Inch, SCH 10, 2500#, Alloy Steel Square Flange

4 Inch, Sch 40, Class 300, Alloy Steel High hub Blind Flange

4 Inch, Sch 40, Class 300, Alloy Steel High hub Blind Flange

8 Inch, RF, 600#, ASME B16.36, Alloy Steel Orifice Flanges

8 Inch, RF, 600#, ASME B16.36, Alloy Steel Orifice Flanges

2 Inch, SCH 40, Class 600, RF, Alloy Steel Puddle Flange

2 Inch, SCH 40, Class 600, RF, Alloy Steel Puddle Flange

4 Inch Class 150, Raised Face, Alloy Steel Expander Flange

4 Inch Class 150, Raised Face, Alloy Steel Expander Flange

6 Inch, Sch 40, Class 300, Alloy Steel Flat Flange

6 Inch, Sch 40, Class 300, Alloy Steel Flat Flange

ASTM A182, 3 Inch, RF, Alloy Steel Flange Gasket

ASTM A182, 3 Inch, RF, Alloy Steel Flange Gasket

8 Inch, CL300, SCH STD, ANSI B16.5, Alloy Steel Hydraulic Sae Flanges

8 Inch, CL300, SCH STD, ANSI B16.5, Alloy Steel Hydraulic Sae Flanges

3 Inch, 150LB, Raised Face, Alloy Steel Flange Adapter

3 Inch, 150LB, Raised Face, Alloy Steel Flange Adapter

12 Inch, SCH 40, Class 600 LB, RF, Alloy Steel Anchor Flange

12 Inch, SCH 40, Class 600 LB, RF, Alloy Steel Anchor Flange


Countries We Have Supplied Recently:

Class 300, SCH STD, 8 Inch, Alloy Steel Flanges Chile, Italy, Iran, Singapore
EN 1092-1 Type 11, PN16, DN80, Alloy Steel Slip On Flange Norway, Malaysia, United Arab Emirates (UAE), Turkey
Class 600 LB, RF, 3 Inch, Alloy Steel Pipe Flanges Indonesia, Belgium, Dammam -KSA, Philippines.
SCH 40, 20 Inch, Class 150, AS Socket Weld Flanges Malaysia, Philippines, Canada, Singapore
5 Inch, Class 300, RF, Alloy Steel Blind Flanges UK, Mexico, Egypt, Spain
Class 150, BS 3293, 6 Inch, Raised Face, AS Flanges Bahrain, South Africa, Singapore
Raised Face, BS 3293, 28 Inch, Class 150, Alloy Steel Flanges Thailand, France, Europe, Qatar
Class 150, RF, 8 Inch, Alloy Steel Threaded Flanges Czechia, Malaysia, Germany, Thailand
RF End, 14 Inch, 150 LB, Alloy Steel Forged Flanges Sweden, China, Colombia, Malaysia
12 Inch, SCH40, Class 2500, Alloy Steel WNRF Flange Netherlands, Russia, Dubai, Malaysia
PN 50, RF, DN 100, ASME B16.5, Alloy Steel Palte Flange Saudi Arabia (KSA), Kuwait, South Africa, Brazil
Class 600, RF, BS EN 10204, 4 Inch, AS Spectacle Blind Flanges Australia, Philippines, Nigeria, UK
SCH 40, Raised Face, 32 In, Class 300, Alloy Steel Orifice Flange Hong Kong, Oman, Malaysia, UAE
Class 150, 22 Inch, SA 182, AS Pipe Flanges Malaysia, USA, Finland, Bangladesh
2 Inch, ASME B16.5, SCH 40, SA182 AS Slip On Flanges Poland, Canada, Ellington -United States, UK
RF End, 7 Inch, Class 150, Alloy Steel SORF Flanges Europe, UAE, United Kingdom -UK, Malaysia
Class 600, 12 Inch, ASME B16.5, FF, Alloy Steel Socket Weld Flanges Malaysia, Japan, Europe, Romania


About Company

We Are EIL And IBR Approved Manufacturer, Exporter, Stockholder, Traders, Dealer, Importer, Wholesaler, Distributor, Supplier of Industrial Pipe Fittings & Flanges, Forgings And Fasteners In Mumbai, India.


Our Official Address

153 / 154, “A” Wing, Siddheshdeep Tower,
Shop No. A-28, Ground Floor, P.B. Marg, Near Navjivan Society,
Mumbai– 400 008 (India).


Telephone & Fax No.

Tel Number : +91 - 22 - 6743 7342,
+91 - 22 - 6659 5135
Fax Number : +91 - 22 - 66595135

Contact our sales representatives in the following countries:
Poland | Malaysia | Singapore | UAE | USA | UK | Philippines | Iran | Italy