The key property for which the stainless steel pipes of grade 321 are renowned is the strength it magnificently retains when faced with soaring temperatures. This beneficial property can be attributed to the heat resistance it displays, resisting intergranular corrosion. Higher temperatures are fatal and can lead to the deterioration of the equipment, but so can lower temperatures. As the temperature drops down, the metal or alloy starts freezing, terminating the operation. But with the remarkable thermal stability manifested by the SS 321, the pipes can be employed in cryogenic temperatures as well. The tensile strength exhibited by the SS 321H tubes in both normal and harsh conditions is exceptional and enables them to operate in the presence of mechanical strain and pressure that is exerted from the components within the pipe. The corrosion resistance of the 321 tubes is also a useful feature that improves its durability.
The applications that are employing the stainless steel 321H pipes are increasing rapidly, as their properties are made known and belonging to these industries are heat exchangers, furnace parts, aircraft exhaust manifolds, expansion joints, burner pipes, heating systems, etc.
Regular tests are conducted on the various aspects of the product and based on this assessment, certificates are provided with every product that verifies its integrity and viability.
What are the properties of Stainless Steel 321 Pipes?
ASTM A213 TP321 Stainless Steel Pipes are known for their excellent resistance to corrosion, high-temperature resistance, and high strength. They have good resistance to intergranular corrosion & sensitization. Additionally, these pipes have good mechanical properties, including high toughness and good ductility. They are also non-magnetic. Overall, Stainless Steel 321 Pipes are a versatile material that is widely used in various industries.
What are the benefits of Stainless Steel 321 Pipes?
Stainless Steel UNS S32109 Pipes are able to withstand high temperatures without becoming damaged. They also have excellent resistance to corrosion, high strength and durability, and good mechanical properties, including high toughness & good ductility. These pipes are non-magnetic. Overall, the benefits of SS 321 Pipes make them a versatile and cost-effective material that is widely used in a variety of industries.
What industries use Stainless Steel 321 Tubes?
Stainless Steel 321 Tubes are widely used in industries such as chemical processing, petrochemical, oil and gas, and power generation. SS 321H Tubes are also used in heat exchangers, condensers, and other high-temperature applications.
Specification of Stainless Steel 321H Tubes
- Pipe Specifications: ASTM A312, A358 / ASME SA312, SA358
- Tube Specifications: ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
- Dimensions: ANSI B36.19, ANSI B36.10
- Pipe Outside Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock
- Tube Outside Diameter: 1/8″ OD TO 2″OD 3MM OD TO 38 MM OD
- Thickness Range: 1MM TO 3 MM 0.028 TO 0.156 IN, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS
- Type: Seamless / ERW / Welded / Capillary Tubes
- Form: Round Tube, Square Tube, Rectangular Tube
- Length: Single Random, Double Random & Required Length
- End: Plain End, Beveled End, Treaded
- End Protection: Plastic Caps
- Finish: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
- External Coating: 3LPE / 3LPP/ FBE/ DFBE/ PP
Available Types of Stainless Steel 321 Pipes
Stainless Steel 321/321H Seamless Pipe
- SS 1.4878 Seamless Pipe
- ASME SA312 TP 321H Seamless Pipes
- SS 321 SMLS Pipe Supplier
- UNS S32109 Seamless Pipe
- SS 1.4541 Seamless Pipe Manufacturer
- UNS S32100 Seamless Pipe
- SS 321H Thin Wall Seamless Pipes
- ASTM A312 TP 321 Seamless Pipe
- 321H Stainless Steel Seamless Pipe
- SS 321 Seamless Pipes
- SS 321/321H Seamless Piping
- ANSI B36.10M 321H Seamless Pipe
Stainless Steel 321/321H Welded Pipe
- SS 321 Welded Pipes
- 321H Stainless Steel Welded Pipe
- UNS S32100 Welded Pipe
- UNS S32109 Welded Pipe
- Stainless Steel 1.4541 Welded Pipe Manufacturer
- SS 1.4878 Welded Pipe
- SS 321 Welded Pipe Supplier
- SS 321/321H Welded Piping
- Stainless Steel 321H Thin Wall Welded Pipes
- ASTM A312 TP 321 Welded Pipe
- ANSI B36.10M 321H Welded Pipe
- ASME SA312 TP 321H Welded Pipes
Stainless Steel 321/321H Seamless Tube
- SS 321 SMLS Tube Supplier
- UNS S32100 Seamless Tube
- ASME SA213 TP 321H Seamless Tubes
- Stainless Steel 1.4878 Seamless Tube
- ASTM A213 TP 321Seamless Tube
- Stainless Steel 321/321H Seamless Tubing
- UNS S32109 Seamless Tubes
- SS 321 Seamless Tubes
- 321H Stainless Steel Seamless Tube
- SS 1.4541 Seamless Tube Manufacturer
- SS 321H Polish Seamless Tubes
Stainless Steel 321/321H Welded Tube
- SS 321/321H Welded Tubing
- SS 321 Welded Tubes
- Stainless Steel 321 Welded Tube Supplier
- SS 1.4541 Welded Tube Manufacturer
- UNS S32100 Welded Tube
- ASTM A269 TP 321 Welded Tube
- Stainless Steel 321H Polish Welded Tubes
- ASME SA269 TP 321H Welded Tubes
- 321H Stainless Steel Welded Tube
- UNS S32109 Welded Tube
- SS 1.4878 Welded Tube
Stainless Steel 321/321H ERW Pipes/Tubes
- SS 1.4878 ERW Pipe / Tube
- UNS S32100 ERW Pipe
- SS 321/321H ERW Tubing
- SS 321 ERW Pipes
- SS 321 ERW Tubes
- ASTM A269/A249 TP 321 ERW Tube
- Stainless Steel 1.4541 ERW Pipe Manufacturer
- SS 321H Electrical Resistance Welding Tubes
- UNS S32109 ERW Tube
- Stainless Steel 321 ERW Tube Supplier
- ASME SA312 TP 321H ERW Pipes
- 321H Stainless Steel ERW Tube
Stainless Steel 321/321H EFW Pipes
- SS 321/321H EFW Piping
- ASTM A358 TP 321 EFW Pipe
- ASME SA358 TP 321H EFW Pipes
- UNS S32109 EFW Pipe
- Stainless Steel 1.4878 EFW Pipe
- 321H Stainless Steel EFW Pipe
- UNS S32100 EFW Pipe
- SS 321 EFW Pipes
- SS 1.4541 EFW Pipe Manufacturer
- SS 321H Electric Fusion Welding Pipes
- Stainless Steel 321 EFW Pipe Supplier
Equivalent Grades of Stainless Steel 321 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 321H Pipes
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
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 |
Stainless Steel 321H Tubes Mechanical Properties
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 321H Tubes Price List
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Stainless Steel 321H Tubes Pressure Rating
Pipe Size (inches) |
Pipe Schedule | Temperature (°F) | ||||||||
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
1″ | 40 | 3048 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
1″ | 80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 |
1″ | 160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 |
1.5″ | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
1.5″ | 80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 |
1.5″ | 160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 |
2″ | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
2″ | 80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 |
2″ | 160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 |
3″ | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
3″ | 80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 |
3″ | 160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2304 | 2280 |
4″ | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
4″ | 80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 |
4″ | 160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 |
5″ | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
5″ | 80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 |
5″ | 160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 |
6″ | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
6″ | 80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 |
6″ | 160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 |
8″ | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
8″ | 80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 |
8″ | 160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 |
10″ | 40 | 974 | 840 | 755 | 694 | 945 | 615 | 596 | 584 | 578 |
10″ | 80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 956 |
10″ | 160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 |
Stainless Steel 321H Tubes Physical Properties
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Stainless Steel 321H Tubes Size Chart
NPS | OD | SCH 5S | SCH 10S | SCH 40S | SCH 80S |
1/4 | 13.72 | – | 1.65 | 2.24 | 3.02 |
3/8 | 17.15 | – | 1.65 | 2.31 | 3.2 |
1/2 | 21.34 | 1.65 | 2.11 | 2.77 | 3.73 |
3/4 | 26.67 | 1.65 | 2.11 | 2.87 | 3.91 |
1 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 |
1.25 | 42.16 | 1.65 | 2.77 | 3.56 | 4.85 |
1.5 | 48.26 | 1.65 | 2.77 | 3.68 | 5.08 |
2 | 60.33 | 1.65 | 2.77 | 3.91 | 5.54 |
2.5 | 73.03 | 2.11 | 3.05 | 5.16 | 7.01 |
3 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 |
3.5 | 101.6 | 2.11 | 3.05 | 5.74 | 8.08 |
4 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 |
5 | 141.3 | 2.77 | 3.4 | 6.55 | 9.53 |
6 | 168.28 | 2.77 | 3.4 | 7.11 | 10.97 |
8 | 219.08 | 2.77 | 3.76 | 8.18 | 12.7 |
10 | 273.05 | 3.4 | 4.19 | 9.27 | 12.7 |
12 | 323.85 | 3.96 | 4.57 | 9.53 | 12.7 |
14 | 355.6 | 3.96 | 4.78 | 9.53 | 12.7 |
16 | 406.4 | 4.19 | 4.78 | 9.53 | 12.7 |
18 | 457.2 | 4.19 | 4.78 | 9.53 | 12.7 |
20 | 508 | 4.78 | 5.54 | 9.53 | 12.7 |
22 | 558.8 | 4.78 | 5.54 | – | – |
24 | 609.6 | 5.54 | 6.35 | 9.53 | 12.7 |
26 | 660.4 | – | – | – | – |
28 | 711.2 | – | – | – | – |
30 | 762 | 6.35 | 7.92 | – | – |
Stainless Steel 321H Tubes Dimension Chart
Pipe Size (in) |
Diameter (in) mm |
Nominal Thickness (in) mm |
Transverse Areas (in2) mm2 |
Length of Pipe (ft per sq. foot of surface) |
Volume (ft3/ft) |
Weight | Number of Threads per inch of Screw | |||||
External | Internal | External | Internal | Steel | External Surface (ft) |
Internal Surface (ft) |
(lb/ft) | (kg/m) | ||||
1/8 | 0.405 | 0.27 | 0.07 | 0.13 | 0.06 | 0.07 | 9.43 | 14.20 | 0.0004 | 0.24 | 0.36 | 27 |
¼ | 0.540 | 0.36 | 0.09 | 0.23 | 0.10 | 0.13 | 7.07 | 10.49 | 0.0007 | 0.42 | 0.63 | 18 |
3/8 | 0.675 | 0.49 | 0.09 | 0.36 | 0.19 | 0.17 | 5.66 | 7.75 | 0.0013 | 0.57 | 0.84 | 18 |
½ | 0.840 | 0.62 | 0.11 | 0.55 | 0.30 | 0.25 | 4.55 | 6.14 | 0.0021 | 0.85 | 1.26 | 14 |
¾ | 1.050 | 0.82 | 0.11 | 0.87 | 0.53 | 0.33 | 3.64 | 4.64 | 0.0037 | 1.13 | 1.68 | 14 |
1 | 1.315 | 1.05 | 0.13 | 1.36 | 0.86 | 0.49 | 2.90 | 3.64 | 0.0060 | 1.68 | 2.50 | 11 ½ |
1 ¼ | 1.660 | 1.38 | 0.14 | 2.16 | 1.50 | 0.67 | 2.30 | 2.77 | 0.0104 | 2.27 | 3.38 | 11 ½ |
1 ½ | 1.900 | 1.61 | 0.15 | 2.84 | 2.04 | 0.80 | 2.01 | 2.37 | 0.0141 | 2.72 | 4.04 | 11 ½ |
2 | 2.375 | 2.07 | 0.15 | 4.43 | 3.36 | 1.08 | 1.61 | 1.85 | 0.0233 | 3.65 | 5.43 | 11 ½ |
2 ½ | 2.875 | 2.47 | 0.20 | 6.49 | 4.79 | 1.70 | 1.33 | 1.55 | 0.0333 | 5.79 | 8.62 | 8 |
3 | 3.500 | 3.07 | 0.22 | 9.62 | 7.39 | 2.23 | 1.09 | 1.25 | 0.0513 | 7.58 | 11.27 | 8 |
3 ½ | 4.000 | 3.55 | 0.23 | 12.56 | 9.89 | 2.68 | 0.95 | 1.08 | 0.0687 | 9.11 | 13.56 | 8 |
4 | 4.500 | 4.03 | 0.24 | 15.90 | 12.73 | 3.17 | 0.85 | 0.95 | 0.0884 | 10.79 | 16.06 | 8 |
5 | 5.563 | 5.05 | 0.26 | 24.30 | 20.00 | 4.30 | 0.69 | 0.76 | 0.1389 | 14.61 | 21.74 | 8 |
6 | 6.625 | 6.07 | 0.28 | 34.47 | 28.89 | 5.58 | 0.58 | 0.63 | 0.2006 | 18.97 | 28.23 | 8 |
8 | 8.625 | 7.98 | 0.32 | 58.42 | 50.02 | 8.40 | 0.44 | 0.48 | 0.3552 | 28.55 | 42.49 | 8 |
10 | 10.750 | 10.02 | 0.37 | 90.76 | 78.85 | 11.90 | 0.36 | 0.38 | 0.5476 | 40.48 | 60.24 | 8 |
12 | 12.750 | 11.94 | 0.41 | 127.64 | 111.90 | 15.74 | 0.30 | 0.32 | 0.7763 | 53.60 | 79.77 | 8 |
14 | 14.000 | 13.13 | 0.44 | 153.94 | 135.30 | 18.64 | 0.27 | 0.28 | 0.9354 | 63.00 | 93.75 | 8 |
16 | 16.000 | 15.00 | 0.50 | 201.05 | 176.70 | 24.35 | 0.24 | 0.25 | 1.2230 | 78.00 | 116.08 | 8 |
18 | 18.000 | 16.88 | 0.56 | 254.85 | 224.00 | 30.85 | 0.21 | 0.23 | 1.5550 | 105.00 | 156.26 | 8 |
20 | 20.000 | 18.81 | 0.59 | 314.15 | 278.00 | 36.15 | 0.19 | 0.20 | 1.9260 | 123.00 | 183.05 | 8 |
24 | 24.000 | 22.63 | 0.69 | 452.40 | 402.10 | 50.30 | 0.16 | 0.17 | 2.7930 | 171.00 | 254.48 | 8 |
Stainless Steel 321H Tubes Tolerance Chart
NPS | ASTM A312 TP321 OD Tolerance | |||
+ | – | |||
inch | mm | inch | mm | |
1/8~1 1 /2 > 1 1 /2~4 > 4~8 > 8~18 > 18~26 > 26~34 > 34~48 |
1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) |
0.4 0.8 1.6 2.4 3.2 4.0 4.8 |
1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) |
0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
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Other types of Stainless Steel 321 Pipe Stock
- Stainless Steel 321H Welded Pipes
- Stainless Steel UNS S32100 ERW Pipes
- Stainless Steel UNS S32109 Welded Tubes
- Stainless Steel 321 Coiled Seamless Tubing
- Stainless Steel 1.4878 Tubing
- Stainless Steel 321 Round Pipe
- SS SUS 321H Electric Fusion Welding Pipes
- SS 1.4541 Cold Rolled Coiled Tubing
- Stainless Steel 1.4878 Rectangular Tubes
- Stainless Steel 321 Seamless Pipes
- Stainless Steel 321H Capillary Tube
- SS 321 Pipe & Tube Manufacturer
- Stainless Steel 321 Seamless Tubing
- SS 321 Electric Resistance Welding Pipes
- Stainless Steel UNS S32109 Heat Ex-changer Tubes
- Stainless Steel 321H EFW Tubing Stockiest
- Stainless Steel 1.4878 SMLS Pipes Dealers
- Stainless Steel 321H Instrumentation Tubes Exporter
- ASME SA312 SS TP 321 Welded Tubing
- Stainless Steel 1.4541 U Shaped Tubing Supplier
- ASTM A312 Stainless Steel 321H Welded Tubes
- Stainless Steel 1.4878 Seamless Pipes
- 321H Stainless Steel Square Tubes
- Stainless Steel UNS S32100 Hydraulic Tubes
Exporter of 321H Stainless Steel Pipes in the following Destinations
Countries
MIDDLE EAST
|
AFRICA
|
EUROPE
|
ASIA
|
Cities
Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
Bhubaneswar | Vijaywada | Firozabad | Bokaro Steel City | Rajkot | Bharuch |
Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
Peenya | Pimpri-Chinchwad | Channapatna | Kharagpur | Nashik | Bareilly |
Varanasi | Haldia | Rourkela | Bangalore | Moradabad | Indore |
Visakhapatnam | Trivandrum | Pithampur | Dibrugarh | Angul | Gwalior |
Coimbatore | Kannur | Nagpur | Vadodara | Rudrapur | Noida |
Agra | Bhagalpur | Jamshedpur | Bhilai | Lucknow | kanpur |
Thane | Bhopal | Navi Mumbai | Vasai | Bikaner | Maharashtra |