Grade 321 is an austenitic stainless steel alloy that is similar in its chemistry to grade 304 stainless steel. However, what separates the SS 321 Blind Flange and grade 304 is the addition of titanium and the controlled content of carbon. Titanium is added in alloy 321 as a stabilizing element and is almost 5 times the amount of carbon in these flanges. With the addition of titanium, the alloy inherits the property of withstanding high temperature. Hence, the alloy also has good creep strength. On the other hand, the lower content of carbon in the alloy of ASTM A182 F321 Flanges would reduce carbide precipitation during welding, thus proving useful in applications that require welding performed. Flanges produced from grade 321 stainless steel flanges offers excellent resistance to oxidation as well as chemical corrosion.
321 stainless steel flanges
321 stainless steel Slip On Flanges
ASME SA182 F321 Blind Flanges
While the alloy for A182 Grade F321 WNRF Flange could be readily formed or drawn, the alloy is more difficult to form as compared to other austenitic grades. The UNS S32100 Slip On Flange is used in a wide range of applications including industries such as petrochemical, oil & gas, aerospace and general industry. Grade 347 stainless steel can be easily welded and processed by traditional shop fabrication practices. Alloy 321 is stainless steel that exhibits good resistance to general corrosion that is comparable to 304. 321 stainless steel flanges was developed for use in the chromium carbide precipitation range, wherein the temperatures fall in between 1800 – 1500°F. At such elevated temperatures, un-stabilized alloys such as austenitic stainless steel 304 are susceptible to intergranular attack.
321 stainless steel flanges
Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
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Standards | API7S-15, API7S-43, API605, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, EN1092 |
Pressure Rating ANSI | 600 LBS, 900 LBS, 150 LBS, 2500 LBS, 300 LBS, 1500 LBS |
Pressure Calculation in DIN | 16Bar 6Bar 25Bar 40Bar 10Bar / PN10 PN16 PN6 PN25 PN64 PN40 |
JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
Coating | Anti-rust Paint, Zinc Plated,Oil Black Paint, Cold and Hot Dip Galvanized, Yellow Transparent |
Most common types | Forged / Threaded / Screwed / Plate |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Production technique |
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Connect Type/ Flange Face Type | Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Raised Face (RF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
Special design |
As per your drawing AS, ANSI, BS, DIN and JIS |
Test | Hydrostatic testing machine, X-ray detector, Direct-reading Spectrograph, UI trasonic flaw detector, Magnetic particle detector |
Equipment | Bending machine, Pushing Machine,Press machine, electric bevelling machine, Sand-blasting machine etc |
Origin | Indian / West Europe / Japan / USA / Korean |
Manufacturer of |
ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
|
Uses & application |
|
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
ASTM A182 Gr F321 Spacer Flanges
ASME SA182 F321 Plate Flanges
Spade Spacer Blind Flange, ASTM A182 F321, 2IN, 300LB
ASTM A182 Gr F321 Figure 8 Flanges
Stainless Steel 321 Orifice Flanges
ASTM A182 321 Blind Flanges
ASTM A182 Grade F321 Spade Flanges
ASTM A182 F321H Swivel Flanges
Forged Flange AISI 321
ASTM A182 F321 WNRF Flanges
ASTM A182 Gr F321 RTJ Flange
PN20 Slip On Flange, Stainless Steel 321, DN1000, Raised Face
Class 300 ASME SA182 F321 Socket Weld Flanges
SA182 Gr F321 Orifice Flanges
A182 F321 SW Flange, DN65, PN20, SCH40, RF
ASTM A182 Grade 3121H Long Weld Neck Flanges
ASTM 321 Stainless Steel Blank Flanges Rotatable
ASTM SS Grade F321 Blank Flanges
Stainless Steel F321 Socket Weld Flanges
ANSI B16.5 Weld Neck Flange, ASTM A182 F321, PN150, DN350
ANSI B16.36 SS 321 Orifice WN Flange, RF, SCH 80
ASME 3121H Exhuast Flanges
SS Grade F321H Slip On Flanges
Stainless Steel A182 F321 Welding Neck Flanges
ASME SA182M Stainless Steel 3121H ANSI 150 Flanges
ASTM A182 Gr F321 Blind Flanges
ASTM A182 Grade F321 Lap Joint Flange
ASTM A182 Grade F321 Threaded Flanges
720 psi ASTM A182 F321 Pipe Flange
321 Stainless Steel Socket Weld Flange
ASTM A182 Gr F321H Weld Neck Flange
321 SS Lapped joint Flanges
SCH STD 900LB SS 321 Orifice Welded Neck Flanges
SA182 Gr F321 Slip On Flanges
SS 321 Threaded Flanges
ASME B16.5 321 SS Flange
321 SS Weld Neck Flanges | SS A182 F321 Lap Joint Flanges |
321 Stainless Steel Long Weld Neck Flanges | ASME SA182 F321 Spectacle Blind Flanges |
Stainless Steel 321 Spades & Ring Spacers | Stainless Steel 1.4541 Nipoflange |
ASTM A182 F321 5D Weldoflange | 321 SS Flange Outlet |
UNS S32100 Flange | Stainless Steel 1.4541 Blind Flange |
UNS S32100 Forged Flanges | 321 Stainless Steel Plate Flange |
UNS S32100 Flanges | 321 Stainless Steel BS 10 Flanges |
Stainless Steel 321 BS 4504 Flanges | ASTM A182 F321 EN 1092-1 Flanges |
321 SS SORF Flange | ASME SA182 F321 BLRF Flange |
Stainless Steel 1.4541 WNRF Flange | UNS S32100 Series a Lap Joint Ring Flange |
ASME SA182 F321 Slip on Flange | ASTM A182 F321 Threaded Flange |
Stainless Steel 321 Reducing Flange | 321 Stainless Steel Socket Weld Flange |
321 Stainless Steel PN16 blind flange | Stainless Steel 321 Forged Socket Weld Pipe Flange |
ASME SA182 F321 Class 300 slip on flange | 321 SS Slip On Weld Flange |
SS A182 F321 Tongue and Groove Flanges | ASME SA182 F321 Male and Female Flange |
321 SS Reducing Flanges | Stainless Steel 1.4541 ASME B16.5 Flanges |
UNS S32100 SWRF Flange | SS A182 F321 Forged blind flange |
ASME SA182 F321 groove weld neck flange | 321 Stainless Steel Socket Weld Hub Flange |
ASTM A182 F321 Forged steel slip on flanges | Stainless Steel 1.4541 Race face slip on flange |
ASTM A182 F321 Ring Type Joint Flanges | Stainless Steel 321 Raised Face Flanges |
Stainless Steel 321 threaded lap joint flange | Stainless Steel 1.4541 Slip On Integral flange |
SS A182 F321 Forged integral puddle flange | ASTM A182 F321 table e long weld neck |
ASME SA182 F321 Class 150 LBS Flange | SS A182 F321 PN10 Forged Flanges |
Fitting Schedule/Class | Flange Size | Fitting Connection Type | Pipe Fitting Material | Max. Pressure | Price |
Class 150 | 1/2″ | FNPT | 321 Stainless Steel | 150 psi | $27.39 / each |
Class 150 | 1/2″ | Socket Weld | Forged 321 Stainless Steel | 275 psi | $31.86 / each |
Class 150 | 1/2″ | Welded | 321 Stainless Steel | 150 psi | $12.43 / each |
Class 150 | 3/4″ | FNPT | 321 Stainless Steel | 150 psi | $27.39 / each |
Class 150 | 3/4″ | Socket Weld | Forged 321 Stainless Steel | 275 psi | $35.88 / each |
Class 150 | 3/4″ | Welded | 321 Stainless Steel | 150 psi | $15.34 / each |
Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
Nominal Pipe Size NPS (inches) |
ASTM A182 F316 Class 300 | ||||
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Diameter of Flange (inches) |
No. of Bolts |
Diameter of Bolts (inches) |
Diameter of Bolt Holes (inches) |
Bolt Circle (inches) |
|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
1/2 | 3-3/4 | 4 | 1/2 | 0.62 | 2-5/8 |
3/4 | 4-5/8 | 4 | 5/8 | 0.75 | 3-1/4 |
1 | 4-7/8 | 4 | 5/8 | 0.75 | 3-1/2 |
1-1/4 | 5-1/4 | 4 | 5/8 | 0.75 | 3-7/8 |
1-1/2 | 6-1/8 | 4 | 3/4 | 0.88 | 4-1/2 |
2 | 6-1/2 | 8 | 5/8 | 0.75 | 5 |
2-1/2 | 7-1/2 | 8 | 3/4 | 0.88 | 5-7/8 |
3 | 8-1/4 | 8 | 3/4 | 0.88 | 6-5/8 |
3-1/2 | 9 | 8 | 3/4 | 0.88 | 7-1/4 |
4 | 10 | 8 | 3/4 | 0.88 | 7-7/8 |
5 | 11 | 8 | 3/4 | 0.88 | 9-1/4 |
6 | 12-1/2 | 12 | 3/4 | 0.88 | 10-5/8 |
8 | 15 | 12 | 7/8 | 1 | 13 |
10 | 17-1/2 | 16 | 1 | 1.12 | 15-1/4 |
12 | 20-1/2 | 16 | 1-1/8 | 1.25 | 17-3/4 |
14 | 23 | 20 | 1-1/8 | 1.25 | 20-1/4 |
16 | 25-1/2 | 20 | 1-1/4 | 1.38 | 22-1/2 |
18 | 28 | 24 | 1-1/4 | 1.38 | 24-3/4 |
20 | 30-1/2 | 24 | 1-1/4 | 1.38 | 27 |
24 | 36 | 24 | 1-1/2 | 1.62 | 32 |
Standard | Class | Diameter | Bolt Circle Diameter | Number of Bolts | Bolt Size | Diameter of Bolt Hole |
---|---|---|---|---|---|---|
AS4087 Flanges | PN14 Flanges | 95 | 67 | 4 | M12 | 14 |
AS 2129 Flange | Table C Flanges | 95 | 67 | 4 | 13 | 14 |
Table D Flanges | 95 | 67 | 4 | 13 | 14 | |
Table E Flanges | 95 | 67 | 4 | 13 | 14 | |
Table F Flanges | 95 | 67 | 4 | 13 | 14 | |
Table H Flanges | 114 | 83 | 4 | 16 | 17 | |
Table J Flanges | 114 | 83 | 4 | 16 | 17 | |
ANSI B16.5 Flanges | ANSI 150 Flanges | 89 | 60 | 4 | 13 | 16 |
ANSI 300 Flanges | 95 | 67 | 4 | 13 | 16 | |
ANSI 600 Flanges | 95 | 67 | 4 | 13 | 16 | |
ANSI 900 Flanges | 121 | 83 | 4 | 19 | 22 | |
ANSI 1500 Flanges | 121 | 83 | 4 | 19 | 22 | |
ISO 7005 (DIN) Flange | PN6 Flanges | 80 | 55 | 4 | M10 | 11 |
PN10 Flanges | 95 | 65 | 4 | M12 | 14 | |
PN16 Flanges | 95 | 65 | 4 | M12 | 14 | |
PN20 Flanges | 90 | 60.5 | 4 | M14 | 16 | |
PN25 Flanges | 95 | 65 | 4 | M12 | 14 | |
PN40 Flanges | 95 | 65 | 4 | M12 | 14 |
ANSI/ASME B16.34 | ANSI PRESSURE RATING | ||||||
Temperature °F | 150# | 300# | 400# | 600# | 900# | 1500# | 2500# |
-20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
200 | 235 | 620 | 825 | 1240 | 1860 | 3095 | 5160 |
300 | 215 | 560 | 745 | 1120 | 1680 | 2795 | 4660 |
400 | 195 | 515 | 685 | 1025 | 1540 | 2570 | 4280 |
500 | 170 | 480 | 635 | 955 | 1435 | 2390 | 3980 |
600 | 140 | 450 | 600 | 900 | 1355 | 2255 | 3760 |
650 | 125 | 445 | 590 | 890 | 1330 | 2220 | 3700 |
700 | 110 | 430 | 580 | 870 | 1305 | 2170 | 3620 |
750 | 95 | 425 | 570 | 855 | 1280 | 2135 | 3560 |
800 | 80 | 420 | 565 | 845 | 1265 | 2110 | 3520 |
850 | 65 | 420 | 555 | 835 | 1255 | 2090 | 3480 |
900 | 50 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
950 | 35 | 385 | 515 | 775 | 1160 | 1930 | 3220 |
1000 | 20 | 350 | 465 | 700 | 1050 | 1750 | 2915 |
1050 | 20 | 345 | 460 | 685 | 1030 | 1720 | 2865 |
1100 | 20 | 305 | 405 | 610 | 915 | 1525 | 2545 |
1150 | 20 | 235 | 315 | 475 | 710 | 1185 | 1970 |
1200 | 20 | 185 | 245 | 370 | 555 | 925 | 1545 |
1250 | 20 | 145 | 195 | 295 | 440 | 735 | 1230 |
1300 | 20 | 115 | 155 | 235 | 350 | 585 | 970 |
1350 | 20 | 95 | 130 | 190 | 290 | 480 | 800 |
1400 | 20 | 75 | 100 | 150 | 225 | 380 | 630 |
1450 | 20 | 60 | 80 | 115 | 175 | 290 | 485 |
1500 | 20 | 40 | 55 | 85 | 125 | 205 | 345 |