ASTM A182 F91 Flanges

ASME A182-f91 Weld Neck Flanges Chemical Composition And Mechanical Properties.

ASTM A182 F91 Flanges

ASTM A182 F91 Flanges

Alloy Steel F91 Flanges

Alloy Steel F91 Flanges

SA 182 Gr F91 RTJ Flanges

SA 182 Gr F91 RTJ Flanges

Table Of Contents


ASTM A182 F91 Flanges Have High Durability?

ASTM A182 F91 Flanges have very high durability, good dimensional accuracy, high tensile strength and very good anti corrosive properties. A182 F91 material is made up of an alloy that houses chromium and molybdenum mixture with chromium not less than 20%. Depending on the grade, the chromium content in Alloy Steel F91 Flanges could go up to 40%. This specific composition allows ASTM A182 Grade F91 Flanges to be very much oxidation resistant, crevice corrosion crack attack resistant and stress corrosion cracking resistant.


ASTM A182 F91 Flanges


A182 F91 Type 2 Flanges Used High Gr Stainless Steel Together?

A182 F91 Type 2 Flanges are used to fit the pipes of high grade stainless steel together. SA 182 Gr F91 Steel Flanges are delivered in a solid solution annealed condition which makes them to be precise, hard and workable in the applications. ASTM A182 F91 Flanges come in different shapes, forms and grades for different needs. The Alloy Steel A182 Grade F91 WNRF Flanges are special in the way that they have an extra neck welded to them. This neck can differ in dimensions but it supports the connection with an additional cover. These are used in fairly high pressure connections where bending stress is eminent and the system could break at the connections. AS A182 F91 RTJ Flanges are different than the other types in the manner that they have a groove in the middle to hold a gasket through.


Alloy Steel F91 Flanges Are Used In Joint Connections?

So when the ring type joint is tightened, the gasket gets into the groove and seals the gap completely. These types of flanges are used in connections where a joint has to be leak proof to extreme levels and in deviating temperatures. A182 F91 Alloy Steel Blind Flanges have a blind end and do not connect two pipes. They only add at the end of one pipe and end the connection. Since they have very low thermal expansion numbers and are very reliable under high temperatures, they can keep the opening sealed even at high temperatures. In applications where there are two pipes that need to be held in place due to a bending stress risk, A182 F91 Steel Slip On Flanges can be applied to hold the pipes inside the bore of the flanges.


F92 Chemical Composition

Element Of ASTM A182 F91 Flanges
 Weight %
C 0.08-0.12
Mn 0.30-0.60
P 0.020 Max
S 0.010 Max
Si 0.20-0.50
Ni 0.40 Max
Cr 8.0-9.5
Mo 0.85-1.05
V 0.18-0.25
Cu –
Other Cb, 0.06-0.10; N, 0.03-0.07; Al, 0.04 max.

ASTM A182 F91 Material Mechanical Properties

Gr Tensile Strength (Mpa) Yield Strength (Mpa) Elongation %
ASTM A182 F91 Flanges 415 585 20

EIL Approved A182 F91 Type 2 Blind Flanges Manufacturer In India And Spec Chart Of Alloy Steel F91 Slip On Flange.


A182 F91 Specification Format

Material Specification Of : ASTM A182 F91 Flanges
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
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

A182 F91 Type 1 Slip On Flanges Available In A Wide Range Of Grades And Shape, Alloy Steel A182 F91 Pipe Flange Dimensions Chart.


SA 182 Gr F91 Flanges Dimensional Formula

SA 182 Gr F91 Flanges Dimensional Formula


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

SA182 F91 Weld Neck Flanges Weight Chart According to ASME B16.5 And Reliable Alloy Steel F91 Flanges Supplier In India.

Weight Formula Of A182 F91 Type 1 Flanges

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
1¼ 3 3 3 3 3 3
1½ 3 3 3 3 4 4
2 5 5 5 5 5 6
2½ 8 8 8 8 7 10
3 9 9 9 9 9 11.5
3½ 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

SA182 F91 Equivalent

Material Name Type Of UNS Number Forging Specification Casting Specification Equivalent DIN DIN W. Number Application
9Cr-1Mo-V A182-F91 A217-C12A X 10 CrMoVNb 9 1 1.4903 High pressure steam

Grade F91 UNS Number

ASTM A182 Gr F91 (UNS K90901)


ASME SA182 Grade F91 Flanges Pressure Rating Table And SA182 Gr F91 Plate Flange Thickness Chart In MM.

ASTM A182 F91 Type 1 Blind Flanges Thickness Tolerance

ASTM A182 F91 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 …….. …….. …….. …….. …….. ……..

A182 F91 Type 2 Slip On Flanges Bolt Pattern

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

ASTM A182 F91 Temperature

ASTM A182 F91 Flanges Pressure Rating Chart
Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

We Provide Types Of ASTM A182 F91 Flanges 3rd Party Testing

3 Inch, 300 LB, RF, ASTM A182 F91 Cl.2 Slip On Flanges

3 Inch, 300 LB, RF, ASTM A182 F91 Cl.2 Slip On Flanges

2 Inch, 300#, SCH 80, Black, ASME SA 182 Gr F91 Socket Weld Flanges

2 Inch, 300#, SCH 80, Black, ASME SA 182 Gr F91 Socket Weld Flanges

10 Inch, 900LB, RF, SA 182 Gr F91 Blind Flanges

10 Inch, 900LB, RF, SA 182 Gr F91 Blind Flanges

6 Inch, 300LB, SCH STD, A182 Grade F91 Weld Neck Flanges

6 Inch, 300LB, SCH STD, A182 Grade F91 Weld Neck Flanges

18 Inch, 150LB, Raised Face, ASTM A182 Grade F91 Plate Flanges

18 Inch, 150LB, Raised Face, ASTM A182 Grade F91 Plate Flanges

8 Inch, 150 LB, ASTM A182 Gr F91 Ring Type Joint Flanges

8 Inch, 150 LB, ASTM A182 Gr F91 Ring Type Joint Flanges

EN 1092-1, DN200, PN16, ASTM A182 F91 Tongue & Groove Flanges

EN 1092-1, DN200, PN16, ASTM A182 F91 Tongue & Groove Flanges

6 Inch, Class 300, A182 F91 Class 2 Reducing Flanges

6 Inch, Class 300, A182 F91 Class 2 Reducing Flanges

10 Inch, Class 600, RF, A182 F91 Cl2 Threaded Flanges

10 Inch, Class 600, RF, A182 F91 Cl2 Threaded Flanges

12 Inch, Class 300, F91 Alloy Steel Lap Joint Flanges

12 Inch, Class 300, F91 Alloy Steel Lap Joint Flanges

4 Inch, 150 LB, Raised Face End, F91 A182 Long Weld Neck Flanges

4 Inch, 150 LB, Raised Face End, F91 A182 Long Weld Neck Flanges

8 Inch, 600#, RF, Alloy Steel F91 Spectacle Blind Flanges

8 Inch, 600#, RF, Alloy Steel F91 Spectacle Blind Flanges

8 Inch, Raised Face, Class 300, ASTM A182 Grade F91 Square Flange

8 Inch, Raised Face, Class 300, ASTM A182 Grade F91 Square Flange

8 Inch, 150 LB, SCH 80, Raised Face, AS A182 F91 High hub Blind Flange

8 Inch, 150 LB, SCH 80, Raised Face, AS A182 F91 High hub Blind Flange

8 Inch, SCH40, Forging, Alloy Steel A182 Grade F91 Orifice Flanges

8 Inch, SCH40, Forging, Alloy Steel A182 Grade F91 Orifice Flanges

2 Inch, SCH 40, ASTM A182 Grade F91 Puddle Flange

2 Inch, SCH 40, ASTM A182 Grade F91 Puddle Flange


We Supplied A Comprehensive Range Of ASTM A182 F91 Flanges To The Following Locations:

SA 182 Gr F91 Threaded Flanges UK, Mexico, Egypt, Spain
Alloy Steel F91 Flanges Thailand, France, Europe, Qatar
SA182 F91 Cl1 Long Weld Neck Flanges Poland, Canada, Ellington -United States, UK
A182 Grade F91 Square Flange Malaysia, Japan, Europe, Romania
Alloy Steel F91 Spectacle Blind Flanges Malaysia, Philippines, Canada, Singapore
ASTM A182 F91 Flanges Bahrain, South Africa, Singapore
ASTM A182 F91 Sip On Flanges Malaysia, USA, Finland, Bangladesh
SA182 F91 Blind Flanges Australia, Philippines, Nigeria, UK
A182 F91 Material Hong Kong, Oman, Malaysia, UAE
A182 F91 Class 2 Flat Flange Czechia, Malaysia, Germany, Thailand
SA182 Chrome Moly F91 Weld Neck Flanges Chile, Italy, Iran, Singapore
SA182 Gr F91 Socket Weld Flages Norway, Malaysia, United Arab Emirates (UAE), Turkey
A182 Grade F91 Reducing Flanges Indonesia, Belgium, Dammam -KSA, Philippines.
A182 F91 Steel Orifice Flanges Europe, UAE, United Kingdom -UK, Malaysia

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