Chrome Moly F91 Socket Weld Flange, Alloy Steel F91 Pipe Flanges, Alloy Steel F91 Flanges Manufacturers In India.

BS 10, EN-1092 Alloy Steel F91 Plate Flange Suppliers, Alloy Steel F91 Slip On Flange, Alloy Steel F91 Flanges.

  • Alloy Steel ASTM A182 F91 Flanges

ANSI B16.5, ANSI B16.47, B16.48, BS4504, Alloy Steel F91 Orifice Flange, ASME SA182M Alloy Steel F91 Blind Flanges.

Rajveer Stainless And Alloys is Alloy Steel A182 F91 Flange manufacturer and supplier for delivering all over worlds. We are ISO 9001:2008 accredited and supply Alloy Steel F91 Flanges to internationally approved quality standards for applications. ASTM A182 F91 Flanges are available in the form of Alloy Steel Flanges.

RSA specializes in ASTM A182 F91 Pipe Flanges with years of experience in manufacturing ASTM A182 F91 Nippo Flanges. We offer high quality, lower cost but the best service. As a result to that our export account today is in various countries like Thailand, Vietnam, Jordan, UK, Kenya, Nigeria, South Africa, Oman, Iraq, Iran, United States Of America, Brazil. We welcome your inquiries 24 X 7.

The ASME SA182 Alloy Steel F91 Lap Joint Flanges supplied by us are accepted by clients in various spheres of the industries ranging from basic industries such as Sugar, Paper, Textile, Dairy and Engineering to more complex such as Oil & Gas, Petrochemical, Chemical & Fertilizers, Power Generation and Nuclear Industries. We also have huge ready stock of BS 10, EN-1092 Alloy Steel F91 Plate Flange, F91 Slip On Flange, Alloy Steel F91 Flanges.

Our ASTM A182 f91 Flanges are made of high grade and available at affordable price. Being Alloy Steel F91 Pipe Flange & A182 F1 Slip on Flanges supplier. We are supplying ASTM A182 F91 Flanges having excellent quality to fully satisfy customer’s requirements. All products can be cut to size and shape according to client’s fabrication and design requirements. Also, all work is governed by our independently accredited and regularly audited quality systems.

According to this specification forged low alloy and stainless steel piping components are used in pressure systems including flanges, fittings, pipe & tube and similar parts to specified dimensions or to dimensional standards as per ASME specifications. Our chrome moly alloy steel flange products contain various varieties like threaded flange, weld neck flange, slip on flange, socket weld flange, blind flange, lap joint flange, and plate flange. We are specializing in the manufacture of special size and custom shape flanges for all our customers.

ASTM A182 Alloy Steel F91 Weld Neck Flange, Alloy Steel F91 Threaded Flanges, BS10 Table D, Table E, DIN Standard Forged Flanges.

Standard Specification For Alloy Steel F91 Flanges

Size 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Pressure Rate 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Facing Types Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove
Value Added Services Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Blindd, Cold and Hot Dip Galvanized
Dimensions ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Material ASTM A182, ASME SA182, ASTM A240, ASME SA240
Production Technique Forged, Heat Treated and Machined
Manufacturers of Alloy Steel F91 Flanges
  • Raccortubi S.p.A., Italy
  • Erne Fittings, Austria
  • Melesi, Italy
  • Mega, Italy
  • Ulma, Spain
  • TecnoForge, Italy
  • BENKAN Corporation, Japan
  • BKL- Thai Benkan, Thailand
  • Lame S.R.L., Italy
  • Metal Far, Italy
ANSI ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
American Society Of Mechanical Engineers (ASME)
  • ASME B1.20.1, Pipe Threads, General Purpose
  • ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250
  • ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
  • ASME B16.11, Forged Fittings, Socket Welding and Threaded
  • ASME B16.25, Buttwelding Ends
  • ASME B16.36, Orifice Flanges
  • ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
  • ASME B31.1, Power Piping
  • ASME B31.3, Process Piping
  • ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
Key markets and industries for Alloy Steel F91 Flanges
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
BS BS4504 , BS4504, BS1560, BS10
JIS 5K, 10K, 16K 20K, 30K, 40K, 63K
Test Direct-reading Spectrograph,Hydrostatic testing machine,X-ray detector,UI trasonic flaw detector,Magnetic particle detector
Origin West Europe / Japan / Indian / USA / Korean
Equipments Press Machine, Bending Machine, Pushing Machine, Electric Bevelling Machine, Sand-Blasting Machine, etc.
Types Of Alloy Steel ASTM A182 F91 Flanges
Alloy Steel ASTM A182 F91 Girth Flange

Alloy Steel ASTM A182 F91 Girth Flange

Alloy Steel ASTM A182 F91 Rotatable Flange

Alloy Steel ASTM A182 F91 Rotatable Flange

Alloy Steel ASTM A182 F91 Anchor Flange

Alloy Steel ASTM A182 F91 Anchor Flange

Alloy Steel ASTM A182 F91 Figure 8 Flange

Alloy Steel ASTM A182 F91 Figure 8 Flange

Alloy Steel ASTM A182 F91 Conflat Flange

Alloy Steel ASTM A182 F91 Conflat Flange

Alloy Steel ASTM A182 F91 Loose Flange

Alloy Steel ASTM A182 F91 Loose Flange

Alloy Steel F91 Flanges Price List
Alloy Steel F91 Lap Joint Flanges

1 inch class 150 Alloy Steel F91 Lap Joint Flanges

Availability: In Stock

$9.38

Alloy Steel F91 Lap Joint Flanges

2 inch class 150 Alloy Steel F91 Lap Joint Flanges

Availability: In Stock

$9.88

Alloy Steel F91 Lap Joint Flanges

3 inch class 150 Alloy Steel F91 Lap Joint Flanges

Availability: In Stock

$14.88

Alloy Steel F91 Lap Joint Flanges

4 inch class 150 Alloy Steel F91 Lap Joint Flanges

Availability: In Stock

$17.88

Alloy Steel F91 Lap Joint Flanges

5 inch class 150 Alloy Steel F91 Lap Joint Flanges

Availability: In Stock

$26.88

Alloy Steel F91 Lap Joint Flanges

6 inch class 150 Alloy Steel F91 Lap Joint Flanges

Availability: In Stock

$27.88

Alloy Steel F91 Blind Flanges

2 inch class 150 Alloy Steel F91 Blind Flange

Availability: In Stock

$21.28

Alloy Steel F91 Blind Flanges

10 inch class 150 Alloy Steel F91 Blind Flange

Availability: In Stock

$57.88

Alloy Steel F91 Blind Flanges

12 inch class 150 Alloy Steel F91 Blind Flange

Availability: In Stock

$91.88

Alloy Steel F91 Blind Flanges

14 inch class 150 Alloy Steel F91 Blind Flange

Availability: In Stock

$109.88

Alloy Steel F91 Blind Flange

16 inch Blind Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$126.90

Alloy Steel F91 Blind Flange

18 inch Blind Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$146.90

Alloy Steel F91 Threaded Flange

4 inch Threaded Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$19.90

Alloy Steel F91 Threaded Flange

5 inch Threaded Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$35.90

Alloy Steel F91 Threaded Flange

6 inch Threaded Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$39.40

Alloy Steel F91 Threaded Flange

10 inch Threaded Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$131.40

Alloy Steel F91 Threaded Flange

12 inch Threaded Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$171.40

Alloy Steel F91 Slip On Flanges

3 inch Slip On Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$13.80

Alloy Steel F91 Slip On Flanges

4 inch Slip On Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$16.50

Alloy Steel F91 Slip On Flanges

5 inch Slip On Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$26.45

Alloy Steel F91 Slip On Flanges

6 inch Slip On Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$29.55

Alloy Steel F91 Slip On Flanges

8 inch Slip On Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$39.55

Alloy Steel F91 Socket Weld Flanges

3 inch Socket Weld Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$15.40

Alloy Steel F91 Socket Weld Flanges

4 inch Socket Weld Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$19.90

Alloy Steel F91 Socket Weld Flanges

5 inch Socket Weld Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$29.55

Alloy Steel F91 Socket Weld Flanges

6 inch Socket Weld Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$32.55

Alloy Steel F91 Blind Plate Flange

2 inch Blind Plate Flange Alloy Steel F91

Availability: In Stock

$19.90

Alloy Steel F91 Blind Plate Flange

10 inch Blind Plate Flange Alloy Steel F91

Availability: In Stock

$56.90

Alloy Steel F91 Blind Plate Flange

12 inch Blind Plate Flange Alloy Steel F91

Availability: In Stock

$96.90

Alloy Steel F91 Blind Plate Flange

14 inch Blind Plate Flange Alloy Steel F91

Availability: In Stock

$106.30

Alloy Steel F91 Weld Neck Flange

3 inch Weld Neck Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$17.70

Alloy Steel F91 Weld Neck Flange

4 inch Weld Neck Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$20.90

Alloy Steel F91 Weld Neck Flange

5 inch Weld Neck Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$32.90

Alloy Steel F91 Weld Neck Flange

6 inch Weld Neck Class 150 Alloy Steel F91 Flanges

Availability: In Stock

$35.90

Alloy Steel F91 Flanges Weight Chart
CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
150 lb 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
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

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
300 lb ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1    3 3 3 3 4 4
4.5 4.5 4 4.5 6 5
1½  6.5 6.5 6 6.5 7 7
2    7 7 7 7 8 9
2½  10 10 10 10 12 12
3    13 14 13 14.5 16 18
3½  17 17 17 17 21 20
4    23.5 24 22 24 28 26.5
5    29 31 28 28 37 36
6    39 39 39 39 50 45
8 58 58 58 58 81 69
10 81 81 81 91 124 100
12 115 115 115 140 185 142
14 165 165 165 190 250 206
16 210 220 190 234 315 250
18 253 280 250 305 414 320
20 315 325 315 375 515 400
22 370 370 370 435 640 465
24 490 490 475 550 800 580

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
400 lb ½  2 2 2 2 2 3
¾ 3 3 3 3 3 3.5
1 3.5 3.5 3.5 3.5 4 4
4.5 4.5 4.5 4.5 6 4.5
1½  6.5 6.5 6.5 6.5 8 8
2    8 8 8 8 10 10
2½  12 12 12 11 15 14
3    15 15 15 14 20 18
3½  21 21 21 20 29 26
4    26 26 26 25 33 35
5    31 31 31 29 44 43
6    44 44 44 42 61 57
8    67 67 67 64 100 89
10    91 91 91 110 155 125
12    130 130 130 152 226 175
14    191 191 191 210 321 233
16    253 253 253 280 398 295
18    321 321 321 345 502 360
20    378 378 378 420 621 445
22    405 405 405 455 720 505
24    539 539 539 615 936 640

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
600 lb ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1    4 4 4 4 4 4
5 5 5 5 6 6
1½  7 7 7 7 8 8
2    9 9 9 9 10 12
2½  13 13 13 12 15 18
3    16 16 16 15 20 23
3½  21 21 21 20 29 26
4    37 37 37 36 41 42
5    63 63 63 63 68 68
6    80 80 80 78 86 81
8 115 15 15 112 140 120
10 177 177 177 195 231 190
12 215 215 215 240 295 226
14 259 259 259 290 378 347
16 366 366 366 400 527 481
18 476 476 476 469 665 555
20 612 612 612 604 855 690
22 590 590 590 670 1000 720
24 876 876 876 866 1250 977

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
900 lb ½  6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 7.5 7.5 7.5 7.5 9 8.5
10 10 10 10 10 10
1½  14 14 14 14 14 14
2    22 22 22 21 25 24
2½  31 31 31 25 32 31
3    36 36 36 29 35 36
4    53 53 53 51 54 53
5    83 83 83 81 87 86
6    110 110 110 105 115 110
8    172 172 172 190 200 187
10    245 245 245 277 290 268
12    326 326 326 371 415 372
14    400 400 400 415 520 562
16    459 459 459 488 619 685
18    647 647 647 670 880 924
20    792 792 792 868 1107 1164
24    1480 1480 1480 1659 2099 2107

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
1500 lb ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1    8 8 8 8 9 9
10 10 10 10 10 10
1½  14 14 14 14 14 14
2    25 25 25 25 25 25
2½  36 36 36 35 35 36
3    48 48 48 47 48 48
4    73 73 73 75 73 73
5    132 132 132 140 140 132
6    165 165 165 170 160 165
8    260 260 260 286 302 275
10 436 436 436 485 510 455
12 667 667 667 749 775 690
14 940 940 940 890 975 940
16 1250 1250 1250 1250 1300 1250
18 1625 1625 1625 1475 1750 1625
20 2050 2050 2050 1775 2225 2050
24 2825 2825 2825 2825 3625 3325

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
2500 lb ½  …. 7 …. 7 7 8
¾ …. 9 …. 8 10 9
1 …. 12 …. 12 12 13
…. 18 …. 17 18 20
1½  …. 25 …. 24 25 28
2    …. 38 …. 37 39 42
2½  …. 55 …. 53 56 52
3    …. 83 …. 80 86 94
4    …. 127 …. 122 133 146
5    …. 210 …. 204 223 244
6    …. 323 …. 314 345 378
8    …. 485 …. 471 533 576
10    …. 925 …. 897 1025 1068
12    …. 1300 …. 1262 1464 1608

Special Offer On Below Alloy Steel F91 Flanges
Flange Schedule/Class Pipe Size - Pipe Flanges Flange Connection Type Flange Material Max. Pressure
ASME B16.5 Class 150 1/2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1/2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1/2" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 1/2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 3/4" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 3/4" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 3/4" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 3/4" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 3/4" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 1" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 1" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 1" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/4" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/4" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/4" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 1-1/4" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/4" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/2" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 1-1/2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 1-1/2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 2" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 2-1/2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 2-1/2" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 2-1/2" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 2-1/2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 2-1/2" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 3" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 3" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 3" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 3" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 4" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 4" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 4" Socket Weld Forged Chrome Moly F91 275 psi
ASME B16.5 Class 150 4" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 4" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 6" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 6" FNPT Chrome Moly F91 150 psi
ASME B16.5 Class 150 6" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 150 6" Welded Chrome Moly F91 150 psi
ASME B16.5 Class 300 1/2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1/2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1/2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1/2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 3/4" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 3/4" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/4" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/4" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/4" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 1-1/2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2-1/2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2-1/2" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2-1/2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 2-1/2" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 3" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 3" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 3" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 3" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 4" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 4" FNPT Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 4" Slip On Forged Chrome Moly F91 720 psi
ASME B16.5 Class 300 4" Slip On Forged Chrome Moly F91 720 psi

Types Of Alloy Steel F91 Flanges

Alloy Steel F91 Threaded Flanges Alloy Steel F91 Weld Neck Flanges
Alloy Steel F91 Slip On Flanges Alloy Steel F91 Socket Weld Flanges
Alloy Steel F91 Blind Flanges Alloy Steel F91 Lap Joint Flanges
Alloy Steel F91 Plate Flanges ASME 16.5 Flanges Alloy Steel F91 SS
Alloy Steel F91 Reducing Flanges Alloy Steel F91 Orifice Flanges
Alloy Steel F91 Nipo Flanges Alloy Steel F91 Weldo Flanges
Alloy Steel F91 Long Weld Neck Flanges Alloy Steel F91 SWRF Flanges
Alloy Steel F91 ASME Flanges Alloy Steel F91 ASME 16.5 forged Flanges
Alloy Steel F91 SORF Flanges Alloy Steel F91 Long Welding Neck Flange
Alloy Steel F91 Collar Flange Alloy Steel F91 Raised Face Flange
Alloy Steel F91 Flat Flanges Alloy Steel F91 Loose Flanges
Alloy Steel F91 Square Flanges Alloy Steel F91 Expander Flanges
Alloy Steel F91 Ring Type Joint Flanges Alloy Steel F91 RTJ
Alloy Steel F91 BLRF Flanges Alloy Steel F91 Groove & Tongue Flanges
Alloy Steel F91 High Hub Blinds Flanges Alloy Steel F91 Spectacle Blind Flanges
Alloy Steel F91 Weld Neck Flanges Series A or B Alloy Steel F91 Spades Ring Spacers Flanges
Alloy Steel F91 Screwed Flanges Alloy Steel F91 Lip type Flanges
Alloy Steel F91 WNRF Flanges Alloy Steel F91 Flange Facing Type & Finish
Alloy Steel F91 Puddle Flanges Alloy Steel F91 Socket Welding Flange
Alloy Steel F91 Flat Face Flange Alloy Steel F91 Lap Joint Ring Flange

Alloy Steel F91 Flanges Size Range

For larger dimensions outside the standards please contact us

Flanges Type Dimension Range Drawing
Alloy Steel F91 Spectacle Blind Flanges 
Alloy Steel F91 Blind Flanges
DN15 – DN2500 
½ "- 24"
DIN2527 PN16 DN150 BL 300lb 6 "
Alloy Steel F91 Threaded with neck 
Alloy Steel F91 Threaded Flanges
DN15 – DN150 
½ "- 24"
DIN2566 DN32 / 42.4 TH 300lb 1 "
Flanges smooth for welding DN15 – DN2500 DIN2576 DN150
Alloy Steel F91 Welding neck 
Alloy Steel F91 Welding Neck Flanges
DN15 – DN2500 
½ "- 24" 
Dy10 – Dy2400
DIN2635 DN150 / 168.3 WN 300lb 6 "GOST Dy150 Py16
Alloy Steel F91 loose flanges, smooth Bunde DN15 – DN2500 DIN2642 DN150
Alloy Steel F91 loose flanges Stub DN15 – DN2500 DIN2673 DN150
Alloy Steel F91 Welding flanges with neck 
Alloy Steel F91 Slip On Flanges
DN15 – DN2500 
½ "- 24" 
Dy10 – Dy2400
DIN86030 DN150 
SO 300lb 6 " 
GOST
Alloy Steel F91 Lap Joint Flanges ½ "- 24" LJ 300lb 6 "
Alloy Steel F91 Socket Welding Flanges ½ "- 3" SW 300lb 6 "

Forged and Plate Flanges

Product Size
Alloy Steel F91 Slip-On Flanges Alloy Steel F91 Threaded Flanges

1/2" – 36"

Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove

Alloy Steel F91 Weld Neck Flanges Alloy Steel F91 Socket Weld Flanges
Alloy Steel F91 Blind Flanges Alloy Steel F91 Reducing Flanges

Type Of Flanges Standard

Flanges Standard Steel Flanges
API 6A Flanges Slip On Flanges
ANSI Flanges Welding Neck Flanges
ASME Flanges Long Welding Neck Flanges
DIN Flanges Blind Flanges
EN1092-1 Flanges Lap Joint Flanges
UNI Flanges Socket Welding Flanges
JIS/KS Flanges Threaded Flanges
BS4504 Flanges Spectacle Blind Flanges
GB Flanges Plate Flanges
AWWA C207 Flanges Collar Flanges
GOST Flanges Flat Face Flanges
PSI Flanges Raised Face Flanges

Weld neck flange
900# weld neck flange integral weld neck flange
bs10 table e weld neck flange jis weld neck flange
bs10 table e weld neck flange long welding neck flange 1500
female weld neck flange metric weld neck flange
sch 40 weld neck flange weld neck flange 150#
sch 80 weld neck flange weld neck flange 1500
table d weld neck flange weld neck flange 1500 lbs
table e weld neck flange weld neck flange 2500
weld neck flange class 150 weld neck flange 28
weld neck flange class 1500 weld neck flange 300#
weld neck flange class 2500 weld neck flange 42
weld neck flange class 300 weld neck flange 600#
weld neck flange class 900 weld neck flange
weld neck flange class 900 weld neck flange ansi 150
weld neck flange din 2633 weld neck flange ansi b16.5
weld neck flange en 1092 1 weld neck flange api 6a

Blind flange
awwa c207 class b blind flange blind flange 28
awwa c207 class d blind flanges blind flange 3 4
awwa class b blind flange blind flange 3 inch
awwa class e blind flange blind flange 30
blank flange vs blind flange blind flange 300 lbs
blind flange 1/2 blind flange 300#
blind flange 10 300 blind flange 32
blind flange 10 600 blind flange 4-1/16
blind flange 10k blind flange 600 class
blind flange 14 blind flange 600 lbs
blind flange 150 lb blind flange 600#
blind flange 150# blind flange 8 600
blind flange 1500# blind flange 900 lbs
blind flange 16 blind flange 900#
blind flange 2 1 16 blind flange
blind flange 2 300 blind flange ansi
blind flange 2 600# blind flange ansi 300
blind flange 20 blind flange ansi 600
blind flange 22 blind flange ansi b16 5
blind flange 24 blind flange api 10000
blind flange 2500 lbs blind flange api 5000
blind flange 2500# blind flange api 6a
ansi b 16.5 blind flange blind flange api 6bx
blind flange class 150 blind flange asme
blind flange class 300 blind flange asme b16.5
blind flange class 600 blind flange en 1092
blind flange class 900 blind flange en 1092-1
c w blind flange blind flange raised face
class d blind flange blind flange rating
class e blind flange blind flange reducer
drilling a blind flange blind flange rf
en 1092-1 blind flange blind flange ring joint
galvanised blind flange blind flange ring type joint
galvanized blind flange blind flange rtj
ghost blind flange blind flange sa 105
kf blind flange blind flange schedule
rf blind flange blind flange series b
series a blind flange blind flange pn 32
series b blind flange blind flange pn 40
blind flange pn16 blind flange pn10
Alloy Steel F91 Flanges Application Industries
  • Air Pollution Control- Scrubbers for Coal-Fired Power Plants
  • Seawater Cooling Devices
  • Architectural railings
  • Wiring In Electrostatic Precipitators
  • Oil Refinery
  • Gas Scrubbing Plants
  • Pulp and Paper Processing Industries
  • Acetic, Phosphoric and Sulphuric Acid Processing Plants
  • Oil and Gas Production - offshore process equipment Offshore, sea water technology, chemical industry, good stability against reducing acids of medium strength like sulphuric acid and phosphoric acid and various chloric media, refinery, paper industry, pulp industry
Properties of Alloy Steel F91 Flanges
  • Excellent corrosion resistance in a wide range of atmospheric environments
  • Good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C
  • Good resistance to carbide precipitation
  • Good machining properties
  • Alloy Steel F91 offers higher strength at elevated temperatures
  • Excellent weldability with and without filler metals
Alloy Steel F91 Flanges Delivery Time
  • Malaysia = 15 to 18 Days
  • Indonesia = 20 to 25 Days
  • UK = 30 to 40 Days
  • Thailand = 15 to 20 Days
  • US = 40 to 60 Days
  • Germany = 30 to 40 Days
  • Philippines = 30 to 40 Days
  • For All Gulf Countries = 10 to 15 Days
  • For All European Countries = 30 to 40 Days
Our Global Market