Size range | Schedule | PN pressure classes |
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ASTM & ASME (American standard) | Inox 304 forged flange surfaces | Dimensional standard for Stainless Steel 304 Flanges |
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Pressure Class | JIS / EN1092-1 standard | ASTM A182 F304 Flanges manufacturing technique |
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JIS: 5K -30K |
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Origin | Flange threads | SA 182 F304 Flange Surface treatment |
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Types of 304 stainless steel flanges | Testing of UNS S30400 flanges | Heat Treatment |
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Connection type | Identification Markings | Packing |
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Product | Price |
A182 GR.F304 WN RF Flange, 150#, SCH 10S | US $9.83 per kg |
A182 F304 SW RF Flange, 300#, SCH 40S | US $2.90 per kg |
ASTM A182 GR.F304 WN RF Flange, 300#, SCH 40S | US $1.55 per kg |
A182 F304 Forged Flange
Inox 304 Slip on Flange
Stainless Steel 304 Blind Flange
SUS 304 Weld Neck Flanges
DIN 1.4301 Plate Flange
ASTM A182 Grade F304 Lap Joint Flange
A182 F304 Threaded Flange
A182 Gr F304 Ring and Spacer
304 SS Spectacle Blind Flange
SUS 304 Long weld neck flange
SA182 F304 Reducing Flange
304 SS Expander Flange
AISI 304 Socket Weld Flange
SA182 Gr F304 RTJ Flanges
ASTM A182 Grade F304 Ring Joint Flanges
SA182 F304 BLRF Flanges
A182 Gr F304 SORF Flanges
ASTM A182 F304 Raised Face Flange
DIN 1.4301 Tongue and groove flange
AISI 304 WNRF Flanges
ASTM A182 F304 SWRF Flanges
UNS S30400 Flat Face Flanges
Inox 304 Pipe Flanges
SA182 F304 Exhaust flanges
Class 150 SA182 F304 flanges
Class 300 304 SS flange
Class 600 304 Stainless Steel pipe flanges
Class 900 SA182 Gr F304 flanges
Class 1500 UNS S30400 plate flange
Class 2500 304 Stainless Steel flanges
Nominal Size | Outside Diameter (OD) | Bore Diameter (B) | No. of Bolt Holes | Bolt Hole Diam. | Bolt Circle (BC) | Thickness (T) | Hub Length (L) | Hub Diam. (H) | Lap Radius ( R ) | Approx. Weight (lbs) |
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1 | 4.25 | 1.38 | 4 | 0.625 | 3.13 | 0.563 | 0.688 | 1.938 | 0.13 | 2 |
1 1/4 | 4.68 | 1.72 | 4 | 0.625 | 3.50 | 0.625 | 0.813 | 2.312 | 0.19 | 3 |
1 1/2 | 5.00 | 1.97 | 4 | 0.625 | 3.88 | 0.688 | 0.875 | 2.563 | 0.25 | 3 |
2 | 6.00 | 2.46 | 4 | 0.750 | 4.75 | 0.750 | 1.000 | 3.063 | 0.31 | 5 |
2 1/2 | 7.00 | 2.97 | 4 | 0.750 | 5.50 | 0.875 | 1.125 | 3.563 | 0.31 | 7 |
3 | 7.50 | 3.60 | 4 | 0.750 | 6.00 | 0.938 | 1.188 | 4.250 | 0.38 | 8 |
3 1/2 | 8.50 | 4.10 | 8 | 0.750 | 7.00 | 0.938 | 1.250 | 4.812 | 0.38 | 11 |
4 | 9.00 | 4.60 | 8 | 0.750 | 7.50 | 0.938 | 1.312 | 5.312 | 0.44 | 13 |
5 | 10.00 | 5.69 | 8 | 0.875 | 8.50 | 0.938 | 1.438 | 6.438 | 0.44 | 15 |
6 | 11.00 | 6.75 | 8 | 0.875 | 9.50 | 1.000 | 1.562 | 7.562 | 0.50 | 18 |
8 | 13.50 | 8.75 | 8 | 0.875 | 11.75 | 1.125 | 1.750 | 9.688 | 0.50 | 30 |
10 | 16.00 | 10.92 | 12 | 1.000 | 14.25 | 1.188 | 1.938 | 12.000 | 0.50 | 42 |
12 | 19.00 | 12.92 | 12 | 1.000 | 17.00 | 1.250 | 2.188 | 14.375 | 0.50 | 64 |
14 | 21.00 | 14.19 | 12 | 1.125 | 18.75 | 1.375 | 2.250 | 15.750 | 0.50 | 90 |
16 | 23.50 | 16.19 | 16 | 1.125 | 21.25 | 1.438 | 2.500 | 18.000 | 0.50 | 98 |
18 | 25.00 | 18.20 | 16 | 1.250 | 22.75 | 1.562 | 2.688 | 19.875 | 0.50 | 125 |
20 | 27.50 | 20.25 | 20 | 1.250 | 25.00 | 1.688 | 2.875 | 22.000 | 0.50 | 160 |
24 | 32.00 | 24.25 | 20 | 1.375 | 29.50 | 1.875 | 3.250 | 26.125 | 0.50 | 212 |
30** | 38.75 | 30.25 | 28 | 1.375 | 36.00 | 2.125 | 3.500 | 32.750 | 0.50 | 305 |
36** | 46.00 | 36.25 | 32 | 1.625 | 42.75 | 2.375 | 3.750 | 39.250 | 0.50 | 440 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
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304 | 0.07 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 |
Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
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304 | 75 | 30 | 40 | 201 | 92 |
Grade | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
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304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
Grade | Density (kg/m3) | Thermal Conductivity(W/m.K) | Mean Coefficient of Thermal Expansion (m/m/0C) | Elastic Modulus (GPa) | Electrical Resistivity (n.m) | Specific Heat 0-1000C(J/kg.K) | |||
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at 1000C | at 5000C | 0-1000C | 0-3150C | 0-5380C | |||||
304 | 8000 | 16.2 | 21.5 | 17.2 | 17.8 | 18.4 | 193 | 720 | 500 |
Temperature °F | Class 150 | Class 900 | Class 600 | Class 300 | Class 2500 | Class 1500 | Class 400 |
-20 to 100 | 275 | 2160 | 1440 | 720 | 6000 | 3600 | 960 |
300 | 205 | 1620 | 1080 | 540 | 4500 | 2700 | 720 |
200 | 230 | 1800 | 1200 | 600 | 5000 | 3000 | 800 |
400 | 190 | 1490 | 995 | 495 | 4140 | 2485 | 660 |
600 | 140 | 1310 | 875 | 435 | 3640 | 2185 | 580 |
650 | 125 | 1290 | 860 | 430 | 3580 | 2150 | 575 |
500 | 170 | 1395 | 930 | 465 | 3880 | 2330 | 620 |
700 | 110 | 1275 | 850 | 425 | 3540 | 2125 | 565 |
750 | 95 | 1245 | 830 | 415 | 3460 | 2075 | 555 |
850 | 65 | 1190 | 790 | 395 | 3300 | 1980 | 530 |
800 | 80 | 1210 | 805 | 405 | 3360 | 2015 | 540 |
900 | 50 | 1165 | 780 | 390 | 3240 | 1945 | 520 |
950 | 35 | 1145 | 765 | 380 | 3180 | 1910 | 510 |
1000 | 20 | 965 | 640 | 320 | 2675 | 1605 | 430 |
1100 | 20 | 770 | 515 | 255 | 2145 | 1285 | 345 |
1150 | 20 | 595 | 400 | 200 | 1655 | 995 | 265 |
1050 | 20 | 925 | 615 | 310 | 2570 | 1545 | 410 |
1200 | 20 | 465 | 310 | 155 | 1285 | 770 | 205 |
1250 | 20 | 340 | 225 | 115 | 945 | 565 | 150 |
1300 | 20 | 255 | 170 | 85 | 715 | 430 | 115 |
1400 | 20 | 145 | 95 | 50 | 400 | 240 | 65 |
1350 | 20 | 185 | 125 | 60 | 515 | 310 | 80 |
1450 | 15 | 105 | 70 | 35 | 285 | 170 | 45 |
1500 | 10 | 80 | 55 | 25 | 230 | 135 | 35 |
Heat resistance | above 500°C to 800°C |
NPS | B | A |
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1/2 | 1.5 | 3.0 |
3/4 | 1.5 | 3.0 |
1 | 1.5 | 3.0 |
1-1/4 | 1.5 | 3.0 |
1-1/2 | 1.5 | 3.0 |
2 | 1.5 | 3.0 |
2-1/2 | 1.5 | 3.0 |
3 | 1.5 | 4.5 |
3-1/2 | 3.0 | 6.0 |
4 | 3.0 | 6.0 |
5 | 3.0 | 6.0 |
6 | 3.0 | 6.0 |
8 | 4.5 | 8.0 |
10 | 4.5 | 8.0 |
12 | 4.5 | 8.0 |
14 | 4.5 | 8.0 |
16 | 4.5 | 10.0 |
18 | 6.0 | 12.0 |
20 | 6.0 | 12.0 |
22 | 6.0 | 12.0 |
24 | 6.0 | 12.0 |