Alpha Overseas is one of the top producers, suppliers, and exporters of SS 321 / 321H Pipes & Tubes. We are an accredited business recognized by numerous international organizations. Our SS 321 / 321H Pipes & Tubes come in a variety of diameters and forms. Additionally, the shape, size, length, and other specifications are made under the customer's needs. We also adhere to all established quality requirements when producing these Pipes.
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The SS 321 / 321H Pipes & Tubes have titanium stabilization and good all-around corrosion resistance. After being exposed to temperatures in the chromium carbide precipitation range of 800 - 1500°F (427 - 816°C), it exhibits exceptional resistance to intergranular corrosion. The alloy has stronger creep and stress rupture qualities than alloys 304 and 304L and can withstand oxidation up to 1500°F (816°C). It has good low-temperature toughness, as well.
These austenitic-ferritic of SS 321 / 321H Pipes & Tubes that we make are typically utilized in harsh settings. Localized corrosion such as pitting, crevice corrosion, and stress corrosion cracking can be resisted by SS 321 / 321H Pipes & Tubes. Together, austenitic and ferritic chemical compositions produce mechanical qualities that can withstand high-stress conditions. Alpha Overseas manufactures these pipes using pure and high-quality alloys. These SS 321 / 321H Pipes & Tubes are made with titanium, carbon, and nickel content. These components enable SS 321 / 321H Pipes & Tubes to exhibit high corrosion resistance in most conditions. Additionally, it offers great resistance to pitting and crevice corrosion, even in oxidising and acidic conditions.
Equivalent Grades Of Stainless Steel 321/321H Pipes & Tubes
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Chemical Composition of Stainless Steel 321/321H Pipes & Tubes
| 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 |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Mechanical Properties of SS 321/321H Pipes & Tubes
| 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 % |
Stainless Steel 321/321H Seamless Pipe Weight Chart
| NPS (DN) |
WEIGHT LB/FT (KG/M) |
SCH | Outside Diameter IN (Milimeter) |
ID | WT IN (Milimeter) |
| 32 (800) |
84.085 (126.032) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.025 (6.035) |
| 32 (800) |
95.028 (141.09) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0281 (7.014) |
| 32 (800) |
105.069 (157.025) |
10 | 32.00 (813) |
.0.0.0 | 0.0312 (7.092) |
| 32 (800) |
116.041 (173.035) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0344 (8.074) |
| 32 (800) |
126.078 (188.083) |
.0.0.0 | 32.00 (813) |
STD | 0.0375 (9.053) |
| 32 (800) |
137.012 (204.009) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0406 (10.031) |
| 32 (800) |
147.078 (220.01) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0438 (11.013) |
| 32 (800) |
158.008 (235.029) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0469 (11.091) |
| 32 (800) |
168.037 (250.065) |
20 | 32.00 (813) |
XS | 0.05 (12.07) |
| 32 (800) |
188.087 (281.009) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0562 (14.027) |
| 32 (800) |
209.062 (312.017) |
30 | 32.00 (813) |
.0.0.0 | 0.0625 (15.088) |
| 32 (800) |
230.029 (342.094) |
40 | 32.00 (813) |
.0.0.0 | 0.0688 (17.048) |
| 32 (800) |
250.055 (373.00) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.075 (19.005) |
| 32 (800) |
270.072 (402.094) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0812 (20.062) |
| 32 (800) |
291.014 (433.052) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0875 (22.023) |
| 32 (800) |
311.047 (463.078) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 0.0938 (23.083) |
| 32 (800) |
331.039 (493.035) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 1.00 (25.04) |
| 32 (800) |
351.023 (522.08) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 1.0062 (26.097) |
| 32 (800) |
371.031 (552.088) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 1.0125 (28.058) |
| 32 (800) |
391.03 (582.064) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 1.0188 (30.018) |
| 32 (800) |
410.09 (611.072) |
.0.0.0 | 32.00 (813) |
.0.0.0 | 1.025 (31.075) |
| 34 (850) |
90.02 (134.031) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.025 (6.035) |
| 34 (850) |
101.029 (150.088) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0281 (7.014) |
| 34 (850) |
112.036 (167.021) |
10 | 34.00 (864) |
.0.0.0 | 0.0312 (7.092) |
| 34 (850) |
123.077 (184.034) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0344 (8.074) |
| 34 (850) |
134.079 (200.082) |
.0.0.0 | 34.00 (864) |
STD | 0.0375 (9.053) |
| 34 (850) |
145.08 (217.006) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0406 (10.031) |
| 34 (850) |
157.014 (234.01) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0438 (11.013) |
| 34 (850) |
168.011 (250.027) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0469 (11.091) |
| 34 (850) |
179.006 (266.063) |
20 | 34.00 (864) |
XS | 0.05 (12.07) |
| 34 (850) |
200.089 (299.004) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0562 (14.027) |
| 34 (850) |
222.099 (332.014) |
30 | 34.00 (864) |
.0.0.0 | 0.0625 (15.088) |
| 34 (850) |
245.00 (364.092) |
40 | 34.00 (864) |
.0.0.0 | 0.0688 (17.048) |
| 34 (850) |
266.058 (396.096) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.075 (19.005) |
| 34 (850) |
288.008 (428.088) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0812 (20.062) |
| 34 (850) |
309.084 (461.048) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0875 (22.023) |
| 34 (850) |
331.052 (493.075) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 0.0938 (23.083) |
| 34 (850) |
352.077 (525.03) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 1.00 (25.04) |
| 34 (850) |
373.094 (556.073) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 1.0062 (26.097) |
| 34 (850) |
395.036 (588.083) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 1.0125 (28.058) |
| 34 (850) |
416.07 (620.06) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 1.0188 (30.018) |
| 34 (850) |
437.062 (651.065) |
.0.0.0 | 34.00 (864) |
.0.0.0 | 1.025 (31.075) |
| 36 (900) |
95.054 (142.014) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.025 (6.035) |
| 36 (900) |
107.03 (159.068) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0281 (7.014) |
| 36 (900) |
119.003 (176.097) |
10 | 36.00 (914) |
.0.0.0 | 0.0312 (7.092) |
| 36 (900) |
131.012 (195.012) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0344 (8.074) |
| 36 (900) |
142.081 (212.057) |
.0.0.0 | 36.00 (914) |
STD | 0.0375 (9.053) |
| 36 (900) |
154.048 (229.077) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0406 (10.031) |
| 36 (900) |
166.051 (247.082) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0438 (11.013) |
| 36 (900) |
178.014 (264.096) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0469 (11.091) |
| 36 (900) |
189.075 (282.029) |
20 | 36.00 (914) |
XS | 0.05 (12.07) |
| 36 (900) |
212.09 (316.063) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0562 (14.027) |
| 36 (900) |
236.035 (351.073) |
30 | 36.00 (914) |
.0.0.0 | 0.0625 (15.088) |
| 36 (900) |
259.071 (386.047) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0688 (17.048) |
| 36 (900) |
282.062 (420.045) |
40 | 36.00 (914) |
.0.0.0 | 0.075 (19.005) |
| 36 (900) |
305.044 (454.03) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0812 (20.062) |
| 36 (900) |
328.055 (488.089) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0875 (22.023) |
| 36 (900) |
351.057 (523.014) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 0.0938 (23.083) |
| 36 (900) |
374.015 (556.062) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 1.00 (25.04) |
| 36 (900) |
396.064 (589.098) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 1.0062 (26.097) |
| 36 (900) |
419.042 (624.007) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 1.0125 (28.058) |
| 36 (900) |
442.01 (657.081) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 1.0188 (30.018) |
| 36 (900) |
464.035 (690.08) |
.0.0.0 | 36.00 (914) |
.0.0.0 | 1.025 (31.075) |
| 38 (950) |
125.07 (186.094) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0312 (7.092) |
| 38 (950) |
138.047 (206.011) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0344 (8.074) |
| 38 (950) |
150.083 (224.056) |
.0.0.0 | 38.00 (965) |
STD | 0.0375 (9.053) |
| 38 (950) |
163.016 (242.074) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0406 (10.031) |
| 38 (950) |
175.087 (261.082) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0438 (11.013) |
| 38 (950) |
188.017 (279.094) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0469 (11.091) |
| 38 (950) |
200.044 (298.026) |
.0.0.0 | 38.00 (965) |
XS | 0.05 (12.07) |
| 38 (950) |
224.092 (334.058) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0562 (14.027) |
| 38 (950) |
249.071 (371.07) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0625 (15.088) |
| 38 (950) |
274.042 (408.046) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0688 (17.048) |
| 38 (950) |
298.065 (444.041) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.075 (19.005) |
| 38 (950) |
322.08 (480.024) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0812 (20.062) |
| 38 (950) |
347.026 (516.085) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0875 (22.023) |
| 38 (950) |
371.063 (553.011) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 0.0938 (23.083) |
| 38 (950) |
395.053 (588.057) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 1.00 (25.04) |
| 38 (950) |
419.035 (623.09) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 1.0062 (26.097) |
| 38 (950) |
443.047 (660.001) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 1.0125 (28.058) |
| 38 (950) |
467.05 (695.077) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 1.0188 (30.018) |
| 38 (950) |
491.007 (730.074) |
.0.0.0 | 38.00 (965) |
.0.0.0 | 1.025 (31.075) |
Stainless Steel 321/321H Pipes Supply Range
| Product Description | Wall Thickness, WT (in milimeter) | Outside Diamter, OD (in milimeter) | |
| Stainless Steel 321/321H Seamless Round Pipe/Tube | 0.05 to 30 | 6 to 630 | |
| Stainless Steel 321/321H Seamless Square Pipe/Tube | 0.05 to 30 | 12.7 * 12.7 to 300 * 300 | |
| Stainless Steel 321/321H Seamless Rectangular Pipe/Tube | 0.05 to 30 | 10*20 to 100*200 | |
| Stainless Steel 321/321H Seamless Colour Coated Pipe/Tube | 0.05 to 30 | 6 to 630 | |
| Stainless Steel 321/321H Seamless Ornamental Tubes | 0.05 to 2.0 | 12.7 to 76.2 | |
| Stainless Steel 321/321H Seamless Electropolished Pipes/Tubes | 0.05 to 30 | 12.7 to 250 | |
| Stainless Steel 321/321H Seamless Slot Round Pipe/Tube | 0.05 to 2.0 | 12.7 to 76.2 | |
Stainless Steel 321/321H Pipes Price Range
| Stainless Steel 321/321H Pipes | ||||||
| Designation of Diameter | Outside Diameter | |||||
| Diameter | SCH 10S | |||||
| (B) | (A) | Meter | Weight Kg/Mtr | Wall | Price in | Price in |
| MM | Thk | INR/MTR | INR/KG | |||
| 1/8 | 6 | 10.03 | 0.027 | 1.2 | 80.5 – 110 | 300 – 400 |
| 1/4 | 8 | 13.7 | 0.049 | 1.65 | 110 – 200 | 200 – 300 |
| 3/8 | 10 | 17.2 | 0.063 | 1.65 | 169 – 250 | 250 – 320 |
| 1/2 | 15 | 21.3 | 1.02 | 2.11 | 234.8 – 289 | 220 – 320.5 |
| 3/4 | 20 | 26.7 | 1.3 | 2.11 | 300 – 350 | 220 – 300 |
| 1 | 25 | 33.4 | 2.13 | 2.77 | 459.9 – 600 | 200 – 400 |
| 11/4 | 32 | 24.2 | 2.73 | 2.77 | 527.9 – 600 | 200 – 250 |
| 11/2 | 40 | 48.3 | 3.16 | 2.77 | 611 – 750 | 205 – 300 |
| 2 | 50 | 60.03 | 3.99 | 2.77 | 797.75 – 810 | 205 – 300 |
| 21/2 | 65 | 73 | 5.34 | 3.05 | 1200.5 – 1300 | 205 – 300 |
| 3 | 80 | 88.9 | 6.56 | 3.05 | 1376 – 1566 | 205 – 300 |
| 31/2 | 90 | 101.6 | 7.53 | 3.05 | 1707.2 – 1890 | 200 – 350 |
| 4 | 100 | 114.3 | 8.5 | 3.05 | 1855 – 2000 | 220 – 300 |
| 5 | 125 | 141.3 | 11.74 | 3.4 | 2893.7 – 3000 | 205 – 310 |
| 6 | 150 | 168.3 | 14.04 | 3.4 | 3010 – 3500 | 240 – 350 |
| 8 | 200 | 219.1 | 20.077 | 3.76 | 5200.02 – 5500 | 220 – 300 |
| 10 | 250 | 273.1 | 28.2 | 4.19 | 8160 – 9000 | 300 – 350 |
| 12 | 300 | 323.9 | 36.54 | 4.57 | 10692.8 – 11000 | 300 – 350 |
| 14 | 350 | 355.6 | 41.99 | 4.78 | 12696.5 – 13566 | 320 – 360 |
| 16 | 400 | 406.4 | 48.07 | 4.78 | 15026.25 – 17655 | 325 – 430 |
Stainless Steel 321/321H Tubes Dimensions
| TUBE O.D. | WALL THICKNESS (INCHES) | |||||||||||||||||||||||||
| TUBE GAUGE | ||||||||||||||||||||||||||
| 00 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | |
| TUBE I.D. | ||||||||||||||||||||||||||
| 0.380 | 0.340 | 0.300 | 0.284 | 0.259 | 0.238 | 0.220 | 0.203 | 0.180 | 0.165 | 0.148 | 0.134 | 0.120 | 0.109 | 0.095 | 0.083 | 0.072 | 0.065 | 0.058 | 0.049 | 0.042 | 0.035 | 0.032 | 0.028 | 0.025 | 0.022 | |
| 1/4″ | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.010 | 0.032 | 0.060 | 0.084 | 0.106 | 0.120 | 0.134 | 0.152 | 0.166 | 0.180 | 0.186 | 0.194 | 0.200 | 0.206 |
| 3/8″ | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.015 | 0.045 | 0.079 | 0.107 | 0.135 | 0.157 | 0.185 | 0.209 | 0.231 | 0.245 | 0.259 | 0.277 | 0.291 | 0.305 | 0.311 | 0.319 | 0.325 | 0.331 |
| 1/2″ | N/A | N/A | N/A | N/A | N/A | 0.024 | 0.060 | 0.094 | 0.140 | 0.170 | 0.204 | 0.232 | 0.260 | 0.282 | 0.310 | 0.334 | 0.356 | 0.370 | 0.384 | 0.402 | 0.416 | 0.430 | 0.436 | 0.444 | 0.450 | 0.456 |
| 5/8″ | N/A | N/A | 0.025 | 0.057 | 0.107 | 0.149 | 0.185 | 0.219 | 0.265 | 0.295 | 0.329 | 0.357 | 0.385 | 0.407 | 0.435 | 0.459 | 0.481 | 0.495 | 0.509 | 0.527 | 0.541 | 0.555 | 0.561 | 0.569 | 0.575 | 0.581 |
| 3/4″ | N/A | 0.070 | 0.150 | 0.182 | 0.232 | 0.274 | 0.310 | 0.344 | 0.390 | 0.420 | 0.454 | 0.482 | 0.510 | 0.532 | 0.560 | 0.584 | 0.606 | 0.620 | 0.634 | 0.652 | 0.666 | 0.680 | 0.686 | 0.694 | 0.700 | 0.706 |
| 7/8″ | 0.115 | 0.195 | 0.275 | 0.307 | 0.357 | 0.399 | 0.435 | 0.469 | 0.515 | 0.545 | 0.579 | 0.607 | 0.635 | 0.657 | 0.685 | 0.709 | 0.731 | 0.745 | 0.759 | 0.777 | 0.791 | 0.805 | 0.811 | 0.819 | 0.825 | 0.831 |
| 1″ | 0.240 | 0.320 | 0.400 | 0.432 | 0.482 | 0.524 | 0.560 | 0.594 | 0.640 | 0.670 | 0.704 | 0.732 | 0.760 | 0.782 | 0.810 | 0.834 | 0.856 | 0.870 | 0.884 | 0.902 | 0.916 | 0.930 | 0.936 | 0.944 | 0.950 | 0.956 |
| 1 1/8″ | 0.365 | 0.445 | 0.525 | 0.557 | 0.607 | 0.649 | 0.685 | 0.719 | 0.765 | 0.795 | 0.829 | 0.857 | 0.885 | 0.907 | 0.935 | 0.959 | 0.981 | 0.995 | 1.009 | 1.027 | 1.041 | 1.055 | 1.061 | 1.069 | 1.075 | 1.081 |
| 1 1/4″ | 0.490 | 0.570 | 0.650 | 0.682 | 0.732 | 0.774 | 0.810 | 0.844 | 0.890 | 0.920 | 0.954 | 0.982 | 1.010 | 1.032 | 1.060 | 1.084 | 1.106 | 1.120 | 1.134 | 1.152 | 1.166 | 1.180 | 1.186 | 1.194 | 1.200 | 1.206 |
| 1 1/2″ | 0.740 | 0.820 | 0.900 | 0.932 | 0.982 | 1.024 | 1.060 | 1.094 | 1.140 | 1.170 | 1.204 | 1.232 | 1.260 | 1.282 | 1.310 | 1.334 | 1.356 | 1.370 | 1.384 | 1.402 | 1.416 | 1.430 | 1.436 | 1.444 | 1.450 | 1.456 |
| 1 3/4″ | 0.990 | 1.070 | 1.150 | 1.182 | 1.232 | 1.274 | 1.310 | 1.344 | 1.390 | 1.420 | 1.454 | 1.482 | 1.510 | 1.532 | 1.560 | 1.584 | 1.606 | 1.620 | 1.634 | 1.652 | 1.666 | 1.680 | 1.686 | 1.694 | 1.700 | 1.706 |
| 2″ | 1.240 | 1.320 | 1.400 | 1.432 | 1.482 | 1.524 | 1.560 | 1.594 | 1.640 | 1.670 | 1.704 | 1.732 | 1.760 | 1.782 | 1.810 | 1.834 | 1.856 | 1.870 | 1.884 | 1.902 | 1.916 | 1.930 | 1.936 | 1.944 | 1.950 | 1.956 |
| 2 1/4″ | 1.490 | 1.570 | 1.650 | 1.682 | 1.732 | 1.774 | 1.810 | 1.844 | 1.890 | 1.920 | 1.954 | 1.982 | 2.010 | 2.032 | 2.060 | 2.084 | 2.106 | 2.120 | 2.134 | 2.152 | 2.166 | 2.180 | 2.186 | 2.194 | 2.200 | 2.206 |
| 2 1/2″ | 1.740 | 1.820 | 1.900 | 1.932 | 1.982 | 2.024 | 2.060 | 2.094 | 2.140 | 2.170 | 2.204 | 2.232 | 2.260 | 2.282 | 2.310 | 2.334 | 2.356 | 2.370 | 2.384 | 2.402 | 2.416 | 2.430 | 2.436 | 2.444 | 2.450 | 2.456 |
| 2 3/4″ | 1.990 | 2.070 | 2.150 | 2.182 | 2.232 | 2.274 | 2.310 | 2.344 | 2.390 | 2.420 | 2.454 | 2.482 | 2.510 | 2.532 | 2.560 | 2.584 | 2.606 | 2.620 | 2.634 | 2.652 | 2.666 | 2.680 | 2.686 | 2.694 | 2.700 | 2.706 |
| 3″ | 2.240 | 2.320 | 2.400 | 2.432 | 2.482 | 2.524 | 2.560 | 2.594 | 2.640 | 2.670 | 2.704 | 2.732 | 2.760 | 2.782 | 2.810 | 2.834 | 2.856 | 2.870 | 2.884 | 2.902 | 2.916 | 2.930 | 2.936 | 2.944 | 2.950 | 2.956 |
| 3 1/4″ | 2.490 | 2.570 | 2.650 | 2.682 | 2.732 | 2.774 | 2.810 | 2.844 | 2.890 | 2.920 | 2.954 | 2.982 | 3.010 | 3.032 | 3.060 | 3.084 | 3.106 | 3.120 | 3.134 | 3.152 | 3.166 | 3.180 | 3.186 | 3.194 | 3.200 | 3.206 |
| 3 1/2″ | 2.740 | 2.820 | 2.900 | 2.932 | 2.982 | 3.024 | 3.060 | 3.094 | 3.140 | 3.170 | 3.204 | 3.232 | 3.260 | 3.282 | 3.310 | 3.334 | 3.356 | 3.370 | 3.384 | 3.402 | 3.416 | 3.430 | 3.436 | 3.444 | 3.450 | 3.456 |
| 3 3/4″ | 2.990 | 3.070 | 3.150 | 3.182 | 3.232 | 3.274 | 3.310 | 3.344 | 3.390 | 3.420 | 3.454 | 3.482 | 3.510 | 3.532 | 3.560 | 3.584 | 3.606 | 3.620 | 3.634 | 3.652 | 3.666 | 3.680 | 3.686 | 3.694 | 3.700 | 3.706 |
| 4″ | 3.240 | 3.320 | 3.400 | 3.432 | 3.482 | 3.524 | 3.560 | 3.594 | 3.640 | 3.670 | 3.704 | 3.732 | 3.760 | 3.782 | 3.810 | 3.834 | 3.856 | 3.870 | 3.884 | 3.902 | 3.916 | 3.930 | 3.936 | 3.944 | 3.950 | 3.956 |
| 4 1/4″ | 3.490 | 3.570 | 3.650 | 3.682 | 3.732 | 3.774 | 3.810 | 3.844 | 3.890 | 3.920 | 3.954 | 3.982 | 4.010 | 4.032 | 4.060 | 4.084 | 4.106 | 4.120 | 4.134 | 4.152 | 4.166 | 4.180 | 4.186 | 4.194 | 4.200 | 4.206 |
| 4 1/2″ | 3.740 | 3.820 | 3.900 | 3.932 | 3.982 | 4.024 | 4.060 | 4.094 | 4.140 | 4.170 | 4.204 | 4.232 | 4.260 | 4.282 | 4.310 | 4.334 | 4.356 | 4.370 | 4.384 | 4.402 | 4.416 | 4.430 | 4.436 | 4.444 | 4.450 | 4.456 |
| 4 3/4″ | 3.990 | 4.070 | 4.150 | 4.182 | 4.232 | 4.274 | 4.310 | 4.344 | 4.390 | 4.420 | 4.454 | 4.482 | 4.510 | 4.532 | 4.560 | 4.584 | 4.606 | 4.620 | 4.634 | 4.652 | 4.666 | 4.680 | 4.686 | 4.694 | 4.700 | 4.706 |
| 5″ | 4.240 | 4.320 | 4.400 | 4.432 | 4.482 | 4.524 | 4.560 | 4.594 | 4.640 | 4.670 | 4.704 | 4.732 | 4.760 | 4.782 | 4.810 | 4.834 | 4.856 | 4.870 | 4.884 | 4.902 | 4.916 | 4.930 | 4.936 | 4.944 | 4.950 | 4.956 |
| 5 1/4″ | 4.490 | 4.570 | 4.650 | 4.682 | 4.732 | 4.774 | 4.810 | 4.844 | 4.890 | 4.920 | 4.954 | 4.982 | 5.010 | 5.032 | 5.060 | 5.084 | 5.106 | 5.120 | 5.134 | 5.152 | 5.166 | 5.180 | 5.186 | 5.194 | 5.200 | 5.206 |
Stainless Steel 321/321H Tubing Size
| Wall Thickness | Tube Sizes ( O.D.) |
|---|---|
| .010 | 1/16″ , 1/8″ , 3/16″ |
| .020 | 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ |
| .012 | 1/8″ |
| .016 | 1/8″ , 3/16″ |
| .028 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″ |
| .035 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .049 | 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .065 | 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″ |
| .083 | 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″ |
| .095 | 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .109 | 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .120 | 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″ |
| .125 | 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″ |
| .134 | 1″ |
| .250 | 3″ |
| .375 | 3 1/2″ |
Stainless Steel 321/321H Tubes Pressure Rating
| Tube O.D. (in.) | Wall Thickness of Tube (inches) | |||||||
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| Working Pressure (psig) | ||||||||
| 1/8 | 7900 | 10100 | ||||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 3/8 | 3100 | 4400 | 6100 | |||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 3/4 | 2200 | 3000 | 4000 | 4600 | ||||
| 1 | 2200 | 2900 | 3400 | 3900 | 4300 | |||
Different Types of Stainless Steel 321 Pipes & Tubes
SS 321 Seamless Pipes
- Stainless Steel 1.4541 Seamless Pipes
- 321 Stainless Steel Seamless Pipes
- AISI 321 Seamless Pipes
- Stainless Steel 321H Seamless Pipes
- 321 SS Seamless Pipes
- UNS S32100 Seamless Pipes
- Stainless Steel 321 Seamless Pipes
- ASME SA312 TP 321H SS Seamless Pipes
- Stainless Steel 321 SMLS Pipe
- ASTM A312 TP321 Stainless Steel Seamless Pipes
- SS 321H SMLS Pipes
- SUS 321H Seamless Pipes
- 321H Stainless Steel Seamless Pipes
SS 321 Welded Pipes
- 321 SS Welded Pipes
- SUS 321H Welded Pipes
- AISI 321 Welded Pipes
- Stainless Steel 1.4878 Welded Pipes
- 321 Stainless Steel Welded Pipes
- UNS S32109 Welded Pipes
- Stainless Steel 321H Welded Pipes
- ASTM A312 TP321 Stainless Steel Welded Pipes
- ASME SA312 TP 321H SS Welded Pipes
- 321H Stainless Steel Welded Pipes
- Stainless Steel 321 Welded Pipes
SS 321 ERW Pipes
- Stainless Steel 1.4878 ERW Tubes
- ASME SA312 TP 321H SS ERW Tubes
- Stainless Steel 321H ERW Tubing
- Stainless Steel 321 Electric Resistance Welded Tube
- 321 SS ERW Tubes
- Stainless Steel 321H ERW Tubes
- 321H Stainless Steel ERW Tubes
- ASTM A312 TP321 Stainless Steel ERW Tubes
- SS 321H Electric Resistance Welded Tubing
- AISI 321 ERW Tubes
- SUS 321H ERW Tubes
- UNS S32109 ERW Tubes
- 321 Stainless Steel ERW Tubing
- Stainless Steel 321 ERW Tubes
SS 321 Seamless Tubes
- 321H Stainless Steel Seamless Tubes
- ASTM A312 TP321 Stainless Steel Seamless Tubes
- Stainless Steel 321H Seamless Tubing
- Stainless Steel 321 SMLS Tube
- AISI 321 Seamless Tubes
- ASME SA312 TP 321H SS Seamless Tubes
- SUS 321H Seamless Tubes
- Stainless Steel 321 Seamless Tubes
- SS 321H SMLS Tubing
- Stainless Steel 321H Seamless Tubes
- Stainless Steel 1.4878 Seamless Tubes
- UNS S32109 Seamless Tubes
- 321 Stainless Steel Seamless Tubing
- 321 SS Seamless Tubes
SS 321 Welded Tubes
- UNS S32100 Welded Tubes
- SUS 321H Welded Tubes
- ASTM A312 TP321 Stainless Steel Welded Tubes
- ASME SA312 TP 321H SS Welded Tubing
- 321H Stainless Steel Welded Tubing
- 321 Stainless Steel Welded Tubing
- AISI 321 Welded Tubes
- Stainless Steel 321H Welded Tubes
- 321 SS Welded Tubes
- Stainless Steel 321H Welded Tubing
- Stainless Steel 321 Welded Tubes
- Stainless Steel 1.4541 Welded Tubes
SS 321 ERW Tubes
- UNS S32109 ERW Tubes
- Stainless Steel 1.4878 ERW Tubes
- ASTM A312 TP321 Stainless Steel ERW Tubes
- AISI 321 ERW Tubes
- Stainless Steel 321H ERW Tubes
- ASME SA312 TP 321H SS ERW Tubes
- SS 321H Electric Resistance Welded Tubing
- SUS 321H ERW Tubes
- 321 Stainless Steel ERW Tubing
- Stainless Steel 321H ERW Tubing
- Stainless Steel 321 Electric Resistance Welded Tube
- Stainless Steel 321 ERW Tubes
- 321 SS ERW Tubes
- 321H Stainless Steel ERW Tubes
Specialized in Following SS 321/321H Pipes & Tubes
- 321H Seamless Steel Tube
- 321 Seamless Steel Pipe
- Stainless Steel 321 Pipe Manufacturer
- Schedule 10 Stainless Steel 321 Pipe Dimensions
- Stainless Steel S32100 Pipes
- Stainless Steel 321 Pipe Exporters
- SS 321H Electric Fusion Welding Pipes
- Stainless Steel 321H Pipes & Tubes Stockist
- Jindal Steel 321H SMLS Pipes
- SS UNS S32109 Tubes
- SS 321 Round Tubing
- 321H Stainless Steel Pipes & Tubes Manufacturer in Mumbai
- Stainless Steel 321 Pipes / Tubing Stockholder
- Stainless Steel 321H Pipes and Tubes Dealers in India
- Stainless Steel 321 Pipes Tubes Distributors
- Stainless Steel 321 Boiler Tubes
- SS 1.4878 Pipes
- Stainless Steel 1.4541 Tubing
- ASTM A358 TP321 Stainless Steel EFW Pipes
- Stainless Steel 321H Heat-Exchanger Tubes
- ASTM A269 TP321H SS SMLS Tubing
- 321 Seamless Steel Tube Price
- Stainless Steel 321 Pipe Supplier
- Stainless Steel 321H Polish Pipe Tubes
- Stainless Steel 321H Industrial Pipes Tubes
- SS 321 4" Seamless Pipe Schedule 80
- Stainless Steel 321 Condenser Tubes
- Stainless Steel 321 Hydraulic Tubes
- Stainless Steel 321 Pipes Supplier in Mumbai India
- Stainless Steel 321 Large Diameter Pipes
- 321H Stainless Steel Tube Sizes
- Weight Chart of Stainless Steel 321H Pipes
- SS 321H Pipes Tubes Exporter In Mumbai India
- SS 321 Tube Price
- Stainless Steel 321H Custom Pipes
- Austenitic Stainless Steel 321H Pipes Tubing
- 321 Stainless Steel Pipes Tubes Grades pdf Charts
- Stainless Steel 321H Round Pipes
- SS 321 Tube Weight Chart
- Stainless Steel 321H Tube Supplier
- Jindal Stainless Steel 321H Tubes
- Stainless Steel 321 Rectangular Pipes
- SS 321 Tube Size Chart
- 321 SS Schedule 40 Stainless Steel Pipe chart
- 321 Stainless Steel Square Tubes
- Stainless Steel 321H Capillary Tube
- Stainless Steel 321H Tube Exporters
- Stainless Steel 321 Pipe Pressure Rating
- 321H Stainless Steel Thin Wall Pipes
- SS 321 Pipes Tubes at Best Price List In Mumbai India
Applications of Stainless Steel 321/321H Pipes & Tubes
Oil & Gas Industry
Power Generation Industry
Petrochemical Industry
Chemical Industry
Cement Industry
We Export Stainless Steel 321/321H Pipes & Tubes Across the Globe
Malaysia, Lebanon, Bahrain, Algiera, Kazakhstan, Libya, Israel, United States, Singapore, South Korea, Tibet, Morocco, Bolivia, Peru, Denmark, columbia, South Africa, Turkey, Pakistan, Romania, Egypt, Hong Kong, Angola, Austria, Italy, Croatia, Netherlands, France, Czech Republic, Gabon, Germany, Namibia, Ukraine, Philippines, Kuwait, India, New Zealand, Canada, Poland, Bulgaria, Chile, Brazil, Mongolia, Sweden, Trinidad & Tobago, Indonesia, Oman, Ecuador, Tunisia, Vietnam, Norway, Hungary, Spain, Australia, China, Belarus, United Arab Emirates, Lithuania, Yemen, Ghana, United Kingdom, Slovakia, Jordan, Macau, Estonia, Lahore, Qatar, Gambia, Algeria, Taiwan, Saudi Arabia, Portugal, Argentina, Belgium, Ireland, Mexico, Greece, Switzerland, Bangladesh, Sri Lanka, Afghanistan, Kenya, Azerbaijan, Iran, Nigeria, Nepal, Japan, Venezuela, Bhutan, Thailand, Russia, Iraq, Zimbabwe, Serbia, Puerto Rico, Colombia, Finland, Costa Rica.
Domestic Supply Stainless Steel 321/321H Pipes & Tubes
Bengaluru, mumbai, Jamshedpur, Rajkot, Ludhiana, Pune, Ranchi, Secunderabad, Gurgaon, Chennai, Bhopal, Chandigarh, Ernakulam, Indore, Thiruvananthapuram, Navi Mumbai, Haryana, Ahmedabad, Thane, Nagpur, Faridabad, New Delhi, Noida, Nashik, Hyderabad, Howrah, Surat, Visakhapatnam, Pimpri-Chinchwad, Kolkata, Jaipur, Kanpur .