Stainless Steel 904L Flanges manufacturers in India

Stainless Steel 904L Flanges Manufacturer In India

Check ASTM A182 F904L Blind / Slip On / Weld Neck / Socket Weld Flange Chemical Composition And Mechanical Properties

What is the difference between Stainless Steel 904L RF and FF flange?
Stainless steel 904L flanges are non-stabilized austenitic grade components. The low carbon grade flanges are available as RF or FF flanges.

  • A 904L RF flange can be recognized due to its gasket surface area that is positioned above the line of bolting. A FF flange has a similar height to the bolting line in the flange.
  • A Raised face flange helps in concentrating more pressure on the mating flanges to increase the strength of the seal. A flat face flange is generally used for mating low-pressure components.
  • A flat face flange utilizes full flat gaskets which are generally of the soft type, while raised face flanges are compatible with different types of gaskets.

Do 904L Stainless Steel flanges have schedules?
A schedule is a standard that helps in measuring the thickness of a flange. 904L is designed in a range of schedules. These schedules help the flange in determining the pressure holding capacity of the component coupled with its strength as there is a temperature rise. This range of flanges are available in schedules of 10, 20, 30, 40, 60, 80, 100, 120, 140, and 160. Schedules between SCH 10-30 are low strength components, SCH 40-60 are standard walled flanges, while Stainless Steel 904L Flanges between SCH 80 to SCH 160 are heavy duty flanges. Special flanges above schedule 160 can be designed which possess extra strength and durability.

ASTM A182 F904L long weld neck flange vs weld neck flange
904L Stainless Steel Weld neck flange is a robust module and is used in high volatile applications in the piping industry. A SS 904L long weld neck flange is a modified version of the weld neck flange, which has similarities with it but can be differentiated based on certain features.

  • A weld neck flange has a long protruded hub or face. A long weld neck flange has an extended neck compared to the latter, which is utilized as a boring extension.
  • SS 904L Weld neck flanges are widely utilized in high-pressure applications. Long weld neck flanges are utilized in high pressure as well as high temperature systems.
  • ASTM A182 F904L long weld neck flange has a square cut on its neck and not a schedule bore as seen on weld neck flanges.
stainless steel 904l flanges manufacturers in india
Table of Contents


Stainless Steel 904L Flanges Dimensions

Standard Of SS 904L Flanges
CLASS NPS ASTM A182 904L SORF Flanges ASTM A182 904L NPT Flanges ASTM A182 904L SW Flanges ASTM A182 904L Loose Flanges ASTM A182 904L BLRF Flanges ASTM A182 904L WN Flanges
150# 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
CLASS NPS SORF NPT Flanges SW Loose BLRF WN
300# ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1 3 3 3 3 4 4
1¼ 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 NPS SORF NPT Flanges SW Loose BLRF WN
400# 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
1¼ 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
14 191 191 191 210 310 233
16 253 253 253 280 398 295
18 310 310 310 345 502 360
20 378 378 378 420 621 445
22 405 405 405 455 720 505
24 539 539 539 615 936 640
CLASS NPS SORF NPT Flanges SW Loose BLRF WN
600# ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1 4 4 4 4 4 4
1¼ 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 NPS SORF NPT Flanges SW Loose BLRF WN
900# 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
1¼ 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 NPS SORF NPT Flanges SW Loose BLRF WN
1500# ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 8 8 8 8 9 9
1¼ 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 NPS SORF NPT Flanges SW Loose BLRF WN
2500# ½ …. 7 …. 7 7 8
¾ …. 9 …. 8 10 9
1 …. 12 …. 12 12 13
1¼ …. 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

ASTM A182 F904l Flange Weight Chart

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 PN14 95 67 4 M12 14
AS 2129 Flange Table C 95 67 4 13 14
Table D 95 67 4 13 14
Table E 95 67 4 13 14
Table F 95 67 4 13 14
Table H 114 83 4 16 17
Table J 114 83 4 16 17
ANSI B16.5 ANSI 150 89 60 4 13 16
ANSI 300 95 67 4 13 16
ANSI 600 95 67 4 13 16
ANSI 900 121 83 4 19 22
ANSI 1500 121 83 4 19 22
ISO 7005 (DIN) Flange PN6 80 55 4 M10 11
PN10 95 65 4 M12 14
PN16 95 65 4 M12 14
PN20 90 60.5 4 M14 16
PN25 95 65 4 M12 14
PN40 95 65 4 M12 14

SA182 F904L Temperature Table

ANSI/ASME B16.34 ANSI PRESSURE RATING
Temperature °F 150LB 300LB 400LB 600LB 900LB 1500LB 2500LB
-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

A182 F904L Material Specification

Specification: ASTM A182 Stainless Steel 904L Flanges
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized, Yellow Transparent,
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Most common types of Flanges Forged / Threaded / Screwed / Plate
Pressure Rating ANSI 2500 LBS, Class 150 LBS, 900 LBS, 1500 LBS, 300 LBS, 600 LBS
Production technique
  • Forged, Heat treated and machined
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Standards ASME/ANSI B16.5, API 590, ASME B16.47A/B, ASME B16.36, API7S-15, ISO 70051, EN 1092-1, DIN, B16.48, GOST, API7S-43, API 605, API 6A, BS 10, MSS SP44, BS1560-3.1, BS 4504, BS, EN-1092, EN, DIN, JIS B2220, B16.47 Series A & B, BS 1042
Connect Type/ Flanges Face Type Flat Face (FF) Flanges, Large Male-Female (LMF) Flanges, Raised Face (RF) Flanges, Large Tongue & Groove, Groove, Lap-Joint Face (LJF) Flanges, Small Male-Female (SMF) Flanges, Small Tongue Flanges, Ring Type Joint (RTJ) Flanges
EN 10Bar 16Bar 6Bar 25Bar 40Bar
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Size Chart 1/2" to 48"

We Provide Different Type Of 904L Stainless Steel Spectacle Blind / Screwed Flanges In Mumbai, India.


Types Of SS 904L Flanges

EN1092-1, PN16, DN200, ASTM A182 F904L Flat Plate Flange

EN1092-1, PN16, DN200, ASTM A182 F904L Flat Plate Flanges

6 Inch, EN1092-1 Type 01, Class 120, ASTM A182 F904L Plate Flange

6 Inch, EN1092-1 Type 01, Class 120, ASTM A182 F904L Plate Flanges

45mm, 1575mm, ASME SA240, SS 904L Plate Flange

45mm, 1575mm, ASME SA240, SS 904L Plate Flanges

DIN 2576, DN250, PN10, ASTM A182 904L Plate Flange

DIN 2576, DN250, PN10, ASTM A182 904L Plate Flanges

150 LB, 1/2 Inch, RF, ASTM A182 F904L Stainless Steel Threaded Flange

150 LB, 1/2 Inch, RF, ASTM A182 F904L Stainless Steel Threaded Flanges

32 Inch, Class 600 LB, WT: 34 MM, Raised Face, ASTM A182 F904L Long WN Flange

32 Inch, Class 600 LB, WT: 34 MM, Raised Face, ASTM A182 F904L Long WN Flanges

8 Inch, SCH 80, 600 LB, ASTM A182 F904L Weld Neck RF Flange

8 Inch, SCH 80, 600 LB, ASTM A182 F904L Weld Neck RF Flanges

2 1/2 Inch, SCH 80S, B16.5, SS Forged ASTM A182 F904L WN Flange

2 1/2 Inch, SCH 80S, B16.5, SS Forged ASTM A182 F904L WN Flanges


UNS N08904 Lap Joint And Werkstoff Nr. 1.4539 Groove & Tongue Flanges Dimensions and Specifications.


ASTM A182 F904L Equivalent

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
ASTM B649 904L 1.4539 N08904 SUS 904L 904S13 STS 317J5L Z2 NCDU 25-20 X1NiCrMoCu25-20-5

UNS N08904 Blind Flanges Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
Stainless Steel 904L Flanges 0.020 maximum 2 maximum 1.00 maximum 0.045 maximum 0.030 maximum 19.00 – 23.00 4.00 – 5.00 maximum 23.00 – 28.00 1.00 – 2.00

Werkstoff Nr. 1.4539 Slip On Flanges Mechanical Properties

Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation
in 2 in.
Hardness
psi (min.)
(MPa)
psi (min.)
(MPa)
% (min.)
(max.)
30,000
205
75,000
515
40
201 Brinell


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