Name: 321H Stainless Steel pipes
Size: 1/2″ NB – 16″NB（Seamless Pipe Size); 1/2″ NB – 24″ NB(ERW Pipe Size)
Material: Stainless Steel
Type：Seamless / Welded / ERW / EFW
Thickness range: 0.3mm – 50 mm
Surface Treatment: Polishing, Hairline, Pickled, etc.
Finished condition: Round, Square, Rectangular, Coil，U Tube
Application: Petrochemical, Oil & Gas； Geothermal, Mining；Chemical Process, Pharmaceutical, Biomass；Sea Water, Water Desalination； LNG (Liquefied Natural Gas), Nuclear Power, Solar Power。
Model number:
Orignal: Wenzhou,Zhejiang
Standrad:ASTM A312, A358 / ASME SA312, SA358
Brand:
Technics:
Package: Packed in woven bag, or put in wooden case
Price:
Delivery: Accord Quantity
Certificate:
Production ability:
Product Detail
Stainless Steel 321H is the higher-carbon modification of stainless steel 321. In addition, 321H is stabilized by an addition of niobium to resist intergranular corrosion. It is also able to withstand higher temperatures than type 321, due to its elevated carbon levels. While 321H displays the same welding and forming characteristics of type 321, the metal cannot be hardened by heat treatment. It is utilized in situations where type 321 cannot withstand the high temperatures, typically those exceeding 1000° F. Type 321H displays better resistance against creep than both 321 and 304 stainless steels.
321H also shows resistance against acid corrosion in a variety of environments. Lower temperatures provide better resistance, but the metal is able to withstand up to a 10% acid solution, that has been diluted, at elevated temperatures. However, the metal shows very little resistance against chlorine or sulfuric solutions at any given temperature.
Table of Content：
1. Specification of 321H Stainless Steel Seamless Tube
2. Applications of 321H Stainless Steel Seamless Tube
3. Stainless Steel 321H Pipes Equivalent Grades
4. Stainless Steel 321H Pipes Chemical Composition
5. Stainless Steel 321H Pipes Mechanical & Physical Properties
6. AISI 321H Schedule 40 Pipe Pressure rating
7. Dimension Table of SA 312 TP 321H Square Pipe
8. Types Of Stainless Steel 321H Pipes
9. Stainless Steel 321H Pipes price list
Specification of 321H Stainless Steel Seamless Tube
Standard | ASTM A312, A358 / ASME SA312, SA358 |
Grade | 321H |
Type | Seamless / Welded / ERW / EFW |
Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
End | Plain End, Bevelled End, Threaded |
Applications of 321H Stainless Steel Seamless Tube
l Oil and gas equipment
l Offshore technology
l Seawater desalination plants
l Chemical industry, especially when handling chlorides
l Flue-gas cleaning
l Pulp and paper industry
l Cargo tanks and pipe systems in chemical tankers
l Firewalls and blast walls on offshore platforms
l Bridges
l Storage tanks
l Pressure vessels, reactor tanks, and heat exchangers
l Rotors, impellers and shafts
Stainless Steel 321H Pipes Equivalent GradesSTANDARD | WERKSTOFF NR. | UNS | JIS | EN |
SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Element | SS 321 | SS 321H |
C | 0.08 max | 0.04 – 0.10 |
Mn | 2.0 max | 2.0 max |
Si | 1.0 max | 1.0 max |
P | 0.045 max | 0.045 max |
S | 0.030 max | 0.030 max |
Cr | 17.00 - 19.00 | 17.00 - 19.00 |
N | 0.10 max | 0.10 max |
Ni | 9.00 - 12.00 | 9.00 – 12.00 |
Ti | 5(C+N) – 0.70 max | 4(C+N) – 0.70 max |
Element | SS 321/321H |
Density | 8.0 g/cm3 |
Melting Point | 1457 °C (2650 °F) |
Tensile Strength | Psi – 75000 , MPa – 515 |
Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
Elongation | 35 % |
Pipe Size in inches | Schedule | Outside Diameter in Inch | Wall Thickness in Inch | Temperature | ||||||||
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||||
Allowable Stress | ||||||||||||
16700 | 16700 | 16700 | 15500 | 14400 | 13500 | 13200 | 12900 | 12600 | ||||
1" | 40 | 1.315 | 0.133 | 2205 | 2205 | 2205 | 2047 | 1902 | 1783 | 1743 | 1703 | 1664 |
80 | 1.315 | 0.179 | 3061 | 3061 | 3061 | 2841 | 2640 | 2475 | 2420 | 2365 | 2310 | |
160 | 1.315 | 0.250 | 4493 | 4493 | 4493 | 4170 | 3874 | 3632 | 3552 | 3471 | 3390 | |
1 1/2" | 40 | 1.900 | 0.145 | 1629 | 1629 | 1629 | 1512 | 1404 | 1317 | 1287 | 1258 | 1229 |
80 | 1.900 | 0.200 | 2303 | 2303 | 2303 | 2138 | 1986 | 1862 | 1821 | 1779 | 1738 | |
160 | 1.900 | 0.281 | 3362 | 3362 | 3362 | 3120 | 2899 | 2717 | 2657 | 2597 | 2536 | |
2" | 40 | 2.375 | 0.154 | 1371 | 1371 | 1371 | 1272 | 1182 | 1108 | 1083 | 1059 | 1034 |
80 | 2.375 | 0.218 | 1985 | 1985 | 1985 | 1843 | 1712 | 1605 | 1569 | 1534 | 1498 | |
160 | 2.375 | 0.344 | 3283 | 3283 | 3283 | 3047 | 2831 | 2654 | 2595 | 2536 | 2477 | |
3" | 40 | 3.500 | 0.216 | 1301 | 1301 | 1301 | 1208 | 1122 | 1052 | 1028 | 1005 | 982 |
80 | 3.500 | 0.300 | 1844 | 1844 | 1844 | 1712 | 1590 | 1491 | 1458 | 1425 | 1391 | |
160 | 3.500 | 0.438 | 2787 | 2787 | 2787 | 2587 | 2403 | 2253 | 2203 | 2153 | 2103 | |
4" | 40 | 4.500 | 0.237 | 1102 | 1102 | 1102 | 1023 | 950 | 891 | 871 | 851 | 831 |
80 | 4.500 | 0.337 | 1596 | 1596 | 1596 | 1482 | 1377 | 1291 | 1262 | 1233 | 1204 | |
160 | 4.500 | 0.531 | 2611 | 2611 | 2611 | 2424 | 2552 | 2111 | 2064 | 2017 | 1970 | |
5" | 40 | 5.563 | 0.258 | 965 | 965 | 965 | 896 | 832 | 780 | 763 | 746 | 728 |
80 | 5.563 | 0.375 | 1428 | 1428 | 1428 | 1325 | 1231 | 1154 | 1129 | 1103 | 1077 | |
160 | 5.563 | 0.625 | 2474 | 2474 | 2474 | 2296 | 2133 | 2000 | 1955 | 1911 | 1866 | |
6" | 40 | 6.625 | 0.280 | 877 | 877 | 877 | 814 | 756 | 709 | 693 | 677 | 661 |
80 | 6.625 | 0.432 | 1379 | 1379 | 1379 | 1280 | 1189 | 1115 | 1090 | 1065 | 1040 | |
160 | 6.625 | 0.719 | 2382 | 2382 | 2382 | 2211 | 2054 | 1925 | 1883 | 1840 | 1797 | |
8" | 40 | 8.625 | 0.322 | 771 | 771 | 771 | 716 | 665 | 623 | 610 | 596 | 582 |
80 | 8.625 | 0.500 | 1218 | 1218 | 1218 | 1131 | 1050 | 985 | 963 | 941 | 919 | |
160 | 8.625 | 0.906 | 2298 | 2298 | 2298 | 2133 | 1982 | 1858 | 1817 | 1775 | 1734 | |
10" | 40 | 10.750 | 0.365 | 699 | 699 | 699 | 649 | 603 | 565 | 553 | 540 | 528 |
80 | 10.750 | 0.594 | 1159 | 1159 | 1159 | 1075 | 999 | 937 | 916 | 895 | 874 | |
160 | 10.750 | 1.125 | 2289 | 2289 | 2289 | 2124 | 1974 | 1850 | 1809 | 1768 | 1727 | |
Nominal size in inches | Outside diameter in inches | Outside diameter in mm | Wall thickness in inches | Wall thickness in mm | Weight [lbs/feet] | Weight [kg/meter] |
1/8 6 | 0.41 | 10.3 | 0.068 | 1.73 | 0.24 | 0.37 |
1/4 8 | 0.54 | 13.7 | 0.088 | 2.24 | 0.42 | 0.63 |
3/8 10 | 0.68 | 17.1 | 0.091 | 2.31 | 0.57 | 0.84 |
1/2 15 | 0.84 | 21.3 | 0.109 | 2.77 | 0.85 | 1.27 |
3/4 20 | 1.05 | 26.7 | 0.113 | 2.87 | 1.13 | 1.69 |
1 25 | 1.32 | 33.4 | 0.133 | 3.38 | 1.68 | 2.5 |
1 1/4 32 | 1.66 | 42.2 | 0.14 | 3.56 | 2.27 | 3.39 |
1 1/2 40 | 1.9 | 48.3 | 0.145 | 3.68 | 2.72 | 4.05 |
2 50 | 2.375 | 60.3 | 0.154 | 3.91 | 3.65 | 5.44 |
2 1/2 65 | 2.875 | 73 | 0.203 | 5.16 | 5.79 | 8.63 |
3 80 | 3.5 | 88.9 | 0.216 | 5.49 | 7.58 | 11.29 |
3 1/2 90 | 4 | 101.6 | 0.226 | 5.74 | 9.11 | 13.57 |
4 100 | 4.5 | 114.3 | 0.237 | 6.02 | 10.79 | 16.07 |
5 125 | 5.563 | 141.3 | 0.258 | 6.55 | 14.62 | 21.77 |
6 150 | 6.625 | 168.3 | 0.28 | 7.11 | 18.97 | 28.26 |
8 200 | 8.625 | 219.1 | 0.322 | 8.18 | 28.55 | 42.55 |
10 250 | 10.75 | 273 | 0.365 | 9.27 | 40.48 | 60.31 |
12 300 | 12.75 | 323.8 | 0.406 | 10.31 | 53.52 | 79.73 |
14 350 | 14 | 355.6 | 0.437 | 11.13 | 54.57 | 94.55 |
16 400 | 16 | 406.4 | 0.5 | 12.7 | 82.77 | 123.3 |
18 450 | 18 | 457 | 0.562 | 14.27 | 104.67 | 155.8 |
20 500 | 20 | 508 | 0.594 | 15.09 | 123.11 | 183.42 |
24 600 | 24 | 610 | 0.688 | 17.48 | 171.29 | 255.41 |
32 800 | 32 | 813 | 0.688 | 17.48 | 230.08 | 342.91 |
Types Of Stainless Steel 321H Pipes
l Stainless Steel 321H pipes
l AISI 321H seamless pipes
l UNS S32109 Pipes in Iraq
l AISI 321H welded pipes in Egypt
l SUS 321H Pipes Suppliers in Jordan
l DIN 1.4878 pipes in Peru
l SS 321H pipes in Chile
l AISI 321H ERW pipes in Malaysia
