Stainless Steel 321H Pipe

SS 321H Seamless Pipe & UNS S32109 ERW Pipe supplier in India

321H is an alloy stabilized with the help of titanium. The Stainless Steel 321H Pipe/ Tubeis an austenitic steel, which is designed to work at carbide precipitation temperatures, which the other grades can’t work. In this grade pipes, and tubes can work at temperatures ranging from 800-1500 degrees F. The Stainless Steel 321H Pipeis the higher carbon version of the 321 alloy. These pipes have a carbon concentration of 0.04-0.10. This allows it to posses increased creep resistance and strength.321H Stainless Steel Tubehave an outer diameter of 6mm-250mm and its thickness ranges from 0.3mm-50mm. These tubes are available in a variety of grades. The Stainless Steel 1.4878 Tubingis widely used in petroleum refineries, boiler tubes, high-pressure steam pipes, heavy-duty exhausts, manifolds, etc. We are the leading stockist of the Stainless Steel 321H Pipe/ Tubein India. We aim to produce the best in the market products at the most reasonable rates.

Stainless Steel 321H Pipe

The 321H pipes and can be manufactured seamlessly or welding procedures. The SS 321H Seamless Pipeis produced from a single piece of steel. These pipes have a tensile strength of above 515Mpa and yield strength of above 205Mpa. The 321H SS Welded Pipedoesn’t suffer from post weld carburization or corrosion in this grade. These welded pipes are strong, durable and don’t require high maintenance. The UNS S32109 ERW Pipeis produced through fusion welding procedures. These pipes can be elongated by 40% and still have excellent performance and strength. The AISI 321H Schedule 40 Pipeis very ductile and has excellent low temperature toughness. These pipes can be easily welded through most standard welding processes. The SS grade 1.4878 Polished Pipeis produced after cold-rolling this pipes. These polished pipes are smooth which gives it added protection against corrosion and other corrosive mediums. The 321H Stainless Steel Pipealong with our other products can be customized in different shapes and sizes as per your requirements.
The DIN 1.4878 Stainless Steel Round Pipeis a standard pipe used throughout this grade. These pipes are mainly used in supplying fluids and gases from place to place. The SA 312 TP 321H Square Pipecannot be hardened by hot-rolling them like most other products in these grades. These pipes are used in providing support and maintaining structural integrity. The ASTM A312 Gr.TP 321H Rectangular Pipeis known for its use in aerospace and storage capabilities due to  the strength and hardness its possess. If you have any queries or want to know more about our ASTM A312 TP 321Hcontact us for more information.

321H SS Welded Pipe & Stainless Steel 1.4878 Tubing stockist in Mumbai, view ASTM A312 TP 321H Pipe sizes according to ISO/ EN


Specification of Stainless Steel 321H Pipe

Distributor of SA 312 TP 321H Square Pipe and 321H Stainless Steel Tube in various Thicknesses, Gauges and Dimensions

International Specification ASTM A312/ ASME SA 312 TP 321H
Seamless Pipes Size
  • Outer Diameter: 4 to 219mm
  • Wall Thickness: 0.5 to 20mm
Welded Pipe Size
  • Outer Diameter: 5.0 - 1219.2 mm
EFW Pipe Size
  • Outer Diameter: 5.0 - 1219.2 mm
Wall Thickness Schedule 5, Schedule 40, Schedule10, Schedule 80, Schedule 160, Schedule 80S, Schedule XXS, Schedule XS
techniques EFW/ Seamless / ERW / Welded / LSAW/ Fabricated / Seam-Welded / CDW/ Redrawn
Form Round, Square, Rectangular
Length Double Random & Required Length End, Single Random, Plain End, Treaded, Beveled End
Condition Hot Finished, Annealed and Pickled, Bright Annealed, Polished, Cold Drawn

321H Stainless Steel Pipe Weight Chart

Nominal Pipe Sizes Outside Diameter Wall Thickness Weight Weight
Inch MM Inch MM Schedule kg/Meter Lbs/feet
1/2 0.840 21 0.109 2.769 40 STD 1.268 0.851
0.147 3.734 80 STD 1.621 1.088
3/4 1.050 27 0.113 2.870 40 STD 1.684 1.131
0.154 3.912 80 STD 2.195 1.474
1 1.315 33 0.133 3.378 40 STD 2.501 1.679
0.179 4.547 80 STD 3.325 2.172
1 1/4 1.660 42 0.140 3.556 40 STD 3.385 2.273
0.191 4.851 80 STD 4.464 2.997
1 1/2 1.900 48 0.145 3.683 40 STD 4.048 2.718
0.200 5.080 80 STD 5.409 3.361
2 2.375 60 0.154 3.912 40 STD 5.441 3.653
0.218 5.537 80 STD 7.480 5.022
2 1/2 2.875 73 0.203 5.516 40 STD 8.629 5.793
0.276 7.010 80 STD 11.411 7.661
3 3.500 89 0.216 5.486 40 STD 11.284 7.576
0.300 7.620 80 STD 15.272 10.253
4 4.500 114 0.237 6.020 16.073 10.790
0.337 8.560 22.318 14.983
6 6.625 168 0.188 4.775 19.252 12.924
0.203 5.516 20.739 13.923
0.219 5.563 22.318 14.983
0.250 6.350 25.354 17.021
0.280 7.112 40 STD 58.263 18.974
0.312 7.925 31.334 21.036
0.375 9.525 37.285 25.031
0.432 10.973 80 XHY 42.561 28.573
0.500 12.700 48.719 32.708
8 8.625 219 0.188 4.775 25.233 16.940
0.203 5.156 27.198 18.259
0.219 5.563 29.286 19.661
0.250 6.350 20 33.308 22.361
0.277 7.036 30 36.786 24.696
0.322 8.179 40 42.352 28.554
0.375 9.525 49.216 33.041
0.406 10.312 60 53.085 35.638
0.500 12.700 80 XHY 64.627 43.388
10 10.750 273 0.188 4.775 31.588 21.207
0.219 5.563 36.689 24.631
0.250 6.350 20 41.759 28.035
0.307 7.798 30 51.002 34.240
0.344 8.738 56.946 38.231
0.365 9.271 40 STD 63.301 40.483
0.438 11.125 71.852 48.238
0.500 12.700 60 XHY 81.530 54.735
0.594 15.088 80 95.969 64.429
12 12.750 324 0.188 4.775 37.570 25.222
0.219 5.563 43.657 29.309
0.250 6.350 49.713 33.375
0.281 7.137 55.739 37.420
0.312 7.925 61.735 41.445
0.375 9.525 73.824 49.562
0.406 10.312 79.727 53.525
0.500 12.700 97.438 65.415
0.562 14.275 108.966 73.154
14 14.000 356 0.188 4.775 41.308 27.732
0.219 5.563 48.012 32.233
0.250 6.350 20 54.685 36.713
0.281 7.137 61.327 41.172
0.312 7.925 67.939 45.611
0.375 9.525 STD 81.281 54.568
0.438 11.125 40 94.498 63.441
0.500 12.700 XHY 107.381 72.090
0.625 15.875 132.983 89.278
16” 16.000 406 0.188 4.775 47.290 21.748
0.219 5.563 54.980 36.910
0.250 6.350 10 62.639 42.053
0.281 7.137 70.268 47.174
0.312 7.925 20 77.866 52.275
0.344 8.738 85.677 57.519
0.375 9.525

30

STD

93.213 62.578
0.438 11.125 108.433 72.797
0.500 12.700

40

XHY

123.289 82.770
18 18.000 457 0.219 5.563 61.948 41.588
0.250 6.350 70.593 47.393
0.281 7.137 79.208 53.176
0.312 7.925 20 87.792 58.939
0.375 9.525 STD 105.144 70.588
0.438 11.125 30 122.369 82.152
0.500 12.700 XHY 139.198 93.450
0.562 14.275 40 155.904 104.666
0.625 15.875 172.754 115.978
20 20.000 508 0.250 6.350 78.547 52.733
0.282 7.163 88.458 59.386
0.312 7.925 97.719 65.604
0.375 9.525 20 STD 117.075 78.598
0.438 11.125 136.305 91.508
0.500 12.700 30 XHY 155.106 104.130
0.594 15.088 40 183.378 123.110
0.625 15.875 192.640 129.328
0.688 17.475 211.368 141.901
24 24.000 610 0.250 6.350 94.456 63.413
0.281 7.137 106.029 71.183
0.312 7.925 117.573 18.932
0.375 9.525 20 STD 140.938 64.618
0.438 11.125 164.176 110.219
0.500 12.700 XHY 186.923 125.490
0.625 15.875 232.410 156.028
0.688 17.475 40 255.148 171.293
0.750 19.050 277.401 186.233
30 30.000 762 0.250 6.350 118.318 79.433
0.281 7.137 132.851 89.189
0.312 7.925 10 147.353 98.925
0.375 9.525 STD 176.731 118.648
0.438 11.125 205.983 138.286
0.500 12.700 20 XHY 234.647 157.530
0.625 15.875 30 292.066 196.078
0.688 17.475 320.817 215.380
0.750 19.050 348.988 234.293
36 36.000 914 0.250 6.350 142.180 95.453
0.281 7.137 159.672 107.196
0.312 7.925 10 177.133 118.918
0.375 9.525 STD 215.525 142.678
0.438 11.125 247.790 166.353
0.500 12.700 20 XHY 282.372 198.570
0.625 15.875 351.723 236.128

0.688

17.475 386.487 259.467

0.750

19.050 420.576 282.353
42 42.000 1067 0.312 7.925 206.914 138.911
0.375 9.525 STD 248.319 166.708
0.500 12.700 XHY 33.097 221.610
0.750 19.050 492.163 330.413
48 48.000 1219 0.375 9.525 STD 284.112 190.738
0.438 11.125 331.404 222.487
0.500 12.700 XHY 377.822 253.650
0.750 19.050 563.750 378.473
0.875 22.225 655.969 440.383

AISI 321H Schedule 40 Pipe Pressure rating

Looking for Polished 321H Stainless Steel Pipe suppliers in India? Stockist of SS grade 1.4878 Pipe, Heat exchanger & Boiler Tubes in Mumbai
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

Dimension Table of SA 312 TP 321H Square Pipe

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

321H Stainless Steel Tube Chemical Element

Element SS 321H
Nickel 09 To 12
sulfur 00.03 Maximum
Nitrogen 00.10
Chromium 17 To 19
Silicon 00.75 Maximum
Magnesium 2 Maximum
Carbon 00.04 To 0.08
Phosphorus 00.045 Maximum
Titanium 00.70 Maximum

Mechanical Properties of SS 321H Seamless Pipe

High performance ASTM A312 Gr.TP 321H Rectangular Pipe & Schedule 40 DIN 1.4878 Stainless Steel Round Pipe at factory price in Mumbai
Element SS 321H
Tensile Strength 515
Yield Strength 205
Elongation 40
Rockwell 95
Brinell 217

UNS S32109 ERW Pipe Equivalent

Material WERKSTOFF NR. Uns No
  German Usa
SS 321H 1.4878 S32109