Stainless Steel 347 Flanges manufacturers in India

Stainless Steel 347 Flanges

RSA Is ISO Certified ASTM A182 F347H Weld Neck / Orifice / Spectacle Blind Flange Manufacturer In India.

How thick should a Stainless Steel 347 flange be?
Stainless steel 347 flanges are versatile components that play a pivotal role in joining different piping modules in the system. These stabilized flanges are highly resistant against intergranular corrosion and oxidation in temperatures up to 1500 degrees F. Flanges are designed with nominal thickness, allowing them to withstand different pressures across the system. Flanges in this range have nominal schedules of Sch 10, 20, 30, 40, 60, 80, 100, 120, 140, and 160. Schedules between Sch 10 to sch 30 are low strength flanges, while schedules 40 and 60 are standard wall schedules. Schedules between 80 to 160 are high-strength flanges designed for optimum performance.

What is the difference between a 347 Stainless Steel Class 900 and a 1500 flange?
Stainless steel 347 class 900 and class 1500 flanges are different pressure classes of each flange. Pressure classes of a flange can be termed as the maximum allowable pressure a flange can withstand when there is an increase in the temperature within the system. 

  • The class 1500 is designed to withstand higher pressures in definite temperatures in comparison to the class 900 flange. 
  • Class 1500 flange is designed to withstand pressures of 3705 degrees F for temperatures above 100 degrees. Similarly, class 900 flanges can withstand pressures of 220 degrees F in the same temperatures.
  • The 900 flange is lighter and less robust compared to the stronger 1500 flange.

ASTM A182 F347 Flat face vs raised face
Flat and raised faces are two common face types in this range. Both these versatile types of faces can be differentiated based on certain unique features.

  • ASTM A182 F347 flat face flange has the same height as that of the bolting line in the flange. A raised face component has a gasket surface that is above the bolting area.
  • Raised face flange tightly seals the mating flanges by applying more pressure and improving the strength of the seal. Flat face components are generally utilized in sealing low-pressure modules.
  • Raised face modules are compatible with a range of gaskets, while flat face components make use of full flat gaskets of soft configuration.
stainless steel 347 flanges manufacturers in india
Table of Contents


ASTM A182 347 Flanges Specification

Specification: ASTM A182 Stainless Steel 347 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
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
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"

Types Of Stainless Steel 347 Flanges

3 Inch, Class 300, API, A182 F347 Forged Steel Nipoflange

3 Inch, Class 300, API, A182 F347 Forged Steel Nipoflanges

DIN 2501, PN16, DN50, ANSI, ASTM A182 F347 Flat Flange

DIN 2501, PN16, DN50, ANSI, ASTM A182 F347 Flat Flanges

EN 1092-1, GP240GH, PN16, DN100, F347 Flat Plate Flanges

EN 1092-1, GP240GH, PN16, DN100, F347 Flat Plate Flanges

12 Inch, SCH 80S, Class D, AWWA C207, Forged, F347 Stainless Steel Flange

12 Inch, SCH 80S, Class D, AWWA C207, Forged, F347 Stainless Steel Flanges

10 Inch, 600#, API 590, FF, ASTM A182 F347 Blind Flanges

10 Inch, 600#, API 590, FF, ASTM A182 F347 Blind Flanges

3 inch, PN 16, DN 125, ASTM A182 F347 Plate Flange

3 inch, PN 16, DN 125, ASTM A182 F347 Plate Flanges

8 Inch, SCH 80, ASTM A182 F347 Anchor Flange

8 Inch, SCH 80, ASTM A182 F347 Anchor Flanges

28 Inch, AWWA Class D, ASTM A182 F347 Back Flange

28 Inch, AWWA Class D, ASTM A182 F347 Back Flanges


ASME A182 Gr F347 Equivalent

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 347 1.4550 S34700 SUS 317L – 08Ch18N12B – X6CrNiNb18-10

A182 F347 Chemical Composition

Element 347 347H
Chromium
17.00 min.-19.00 max.
17.00 min.-19.00 max.
Nickel
9.00 min.-13.00 max.
9.00 min.-13.00 max.
Carbon
0.08
0.04 min.-0.10 max.
Manganese
2.00
2.00
Phosphorus
0.045
0.045
Sulfur
0.03
0.03
Silicon
0.75
0.75
Columbium & Tantalum
10 x (C + N) min.-1.00 maximum.
8 x (C + N) min.-1.00 maximum.
Iron
Balance

SA182 347H 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

Check SS 347 Slip On And UNS S34700 Blind Flanges Equivalent Grades And Dimensions Chart.


UNS S34700 Slip On Flanges Dimensions

Standard Of SS 347 Flanges
CLASS NPS ASTM A182 F347 SORF Flanges ASTM A182 F347 NPT Flanges ASTM A182 F347 SW Flanges ASTM A182 F347 Loose Flanges ASTM A182 F347 BLRF Flanges ASTM A182 F347 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

347H Stainless Steel Flanges 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

Mechanical Properties Of Werkstoff Nr. 1.4550 Screwed Flange And ASTM A182 Stainless Steel 347 Flanges Chemical Composition.


SS 347 Blind Flanges 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


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