Stainless Steel 316H Flanges manufacturers in India

Stainless Steel 316H Flanges Manufacturer

We Provide Different Size And Class ASTM A182 F316H Slip On / UNS S31609 Weld Neck / Spectacle Blind Flange In India

What does PN mean in Stainless Steel 316H flanges?
In stainless steel 316H flanges, PN refers to nominal pressure or pressure nominale. The prefix for pressure rating in flanges is designed to operate under normal scores of PN6, PN10, PN16, PN25, PN40, PN64, and PN100. This takes place following all international flange standards set by different unions. The function of a flange is to connect pipes, tubes, valves, and other piping equipment securely in the system. The PN specification allows users to use fittings or valves, which can work in the same pressure range as that of the flange to ensure optimum efficiency and excellent working compatibility with both components.

Ways To Identify A 316H Stainless Steel Flange
316H stainless steel flanges are a high carbon version of the 316 grade. The high-strength molybdenum-bearing components are difficult to distinguish with the naked eye however, some of its characteristics and features can help in easily distinguishing them from other grades. The robust module possesses superior tensile and yield strengths allowing them to be used in petrochemical and gas sectors. These versatile flanges are designed with a density of 8 g/cm3 and are characterized for having a long-term creep strength. The flanges have enhanced hardness in high-temperature systems as well as in cryogenic temperatures. Apart from this, the flanges in this range show high corrosion resistance across different stress-induced environments.

ASTM A182 F316H slip on flange vs weld neck
Slip on flanges and weld neck flanges are amongst the most popular flanges in this grade of flanges. These flanges have unique features and functions that help in differentiating them from each other.

  • ASTM A182 F316H slip on flange follows a simple installation process wherein the flange is slid on the pipe and welded using one or two fillet welds. Weld neck flanges are welded directly on the pipe, making use of a butt-weld.
  • Slip on flanges are designed with a low profile head, while welded flanges have a long protruding tapered hub or head.
  • Weld neck flanges provide optimum support to piping modules during high pressure and temperature fluctuations across the systems. Slip on flanges is utilized in low-pressure and temperature systems.
stainless steel 316H flanges manufacturers in india
Table of Contents


A182 F316H Specification

Specification: ASTM A182 Stainless Steel 316H Flanges
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
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
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Size Chart 1/2" to 48"
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
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

ASTM A182 F316H Equivalent

STANDARD WERKSTOFF NR. UNS
Stainless Steel 316H Flanges 1.4401 S31609

ASME SA182 F316H Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
ASTM A182 F316H Flanges 0.10 maximum 2 maximum 0.75 maximum 0.045 maximum 0.030 maximum 16 – 18 2.00 - 3.00 10.00 - 14.00 68.89 min

SS 316H Flanges Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.9 g/cm3 1402 °C (2555 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 40 %

Types Of Stainless Steel 316H Flanges For Sale

18 Inch, CL150, RF, A182 F316H Stainless Steel Slip On Flange

18 Inch, CL150, RF, A182 F316H Stainless Steel Slip On Flange

20 Inch, SCH 80, ASME B16.5, ASTM A182 F316H Slip on Pipe Flange

20 Inch, SCH 80, ASME B16.5, ASTM A182 F316H Slip on Pipe Flange

40 Inch, SCH 40, Class 150, Raised Face, BS 3293, ASTM A182 F316H Slip On Flange

40 Inch, SCH 40, Class 150, Raised Face, BS 3293, ASTM A182 F316H Slip On Flange

36 Inch, Sch 40 BS 3293, Raised Face, 150#, ASTM A182 F316H Slip On Flange

36 Inch, Sch 40 BS 3293, Raised Face, 150#, ASTM A182 F316H Slip On Flange

2 Inch, SCH 40, RF, Class 150, ASTM A182 F316H SW Flanges

2 Inch, SCH 40, RF, Class 150, ASTM A182 F316H SW Flange

1 Inch, SCH 40, RF Ends, Class 300, ASTM A182 F316H SW Flange

1 Inch, SCH 40, RF Ends, Class 300, ASTM A182 F316H SW Flange

2 1/2 Inch, 150#, A182 F316H Socket Weld Flange

2 1/2 Inch, 150#, A182 F316H Socket Weld Flange

8 Inch, Sch 60, 900LB, A182 F316H Socket Weld Flanges

8 Inch, Sch 60, 900LB, A182 F316H Socket Weld Flanges

150 LB, 1/2 Inch, RF, ASTM A182 F316H Stainless Steel Threaded Flange

150 LB, 1/2 Inch, RF, ASTM A182 F316H Stainless Steel Threaded Flange

4 Inch. SCH 80, ASME B16.5, F316H NPT Flanges

4 Inch. SCH 80, ASME B16.5, F316H NPT Flange

2 Inch, 300 LB, RF, BS4504, A182 F316H Thread Flange

2 Inch, 300 LB, RF, BS4504, A182 F316H Thread Flange

2 Inch x NPTF 1-1/2 Inch, RF, A182 F316H Screw Flange

2 Inch x NPTF 1-1/2 Inch, RF, A182 F316H Screw Flange


Check Price List And Equivalent Of SS 316H Socket Weld / RTJ / Werkstoff Nr. 1.4401 Blind Flanges.


UNS S31609 Blind Flange Temperature

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

316H Stainless Steel Flanges Mechanical Properties And Weight Chart.


Werkstoff Nr. 1.4401 Slip On Flanges Weight

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

316H Stainless Steel Flanges Dimensions

Standard Of SS 316H Flanges
CLASS NPS ASTM A182 F316H SORF Flanges ASTM A182 F316H NPT Flanges ASTM A182 F316H SW Flanges ASTM A182 F316H Loose Flanges ASTM A182 F316H BLRF Flanges ASTM A182 F316H 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


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