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Stainless Steel 904L Pipe

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Stainless Steel 904L Pipe

Stainless Steel 904L Pipe is a high-alloy, low-carbon austenitic stainless steel pipe known for its exceptional resistance to highly corrosive environments. With a unique chemical composition that includes high levels of chromium, nickel, molybdenum, and the addition of copper, 904L offers excellent protection against strong reducing acids such as sulfuric, phosphoric, and acetic acids.

This pipe is especially effective in chloride-rich environments, resisting pitting, crevice corrosion, and stress corrosion cracking. Its low carbon content minimizes the risk of carbide precipitation during welding, maintaining corrosion resistance in welded structures without the need for post-weld heat treatment.

Stainless Steel 904L Pipe is commonly used in chemical processing, offshore oil and gas, marine engineering, pulp and paper, and pharmaceutical industries. It is available in seamless and welded forms, in a wide range of sizes and thicknesses, and conforms to international quality standards.

Offering outstanding strength, corrosion resistance, and long-term durability, Stainless Steel 904L Pipe is the ideal solution for demanding applications that require high performance in harsh and corrosive conditions.

Stainless Steel 904L Pipe

UNS N08904 Pipe Specifications, Sizes and Wall Thickness

Grade 904L
Specifications ASTM A312 / ASME SA312
Length Single Random, Double Random, Cut to length
End Screwed, Beveled, Threaded, Plain
Type Welded | CDW | ERW | DOM | Seamless | Fabricated | CEW
Thickness 0.25, 0.28, 0.32, 0.37, 0.41, 0.51, 0.61, 0.71, 0.91, 1.11, 1.15, 1.41 mm
Sizes 5.0 milimeter - 1219.2 milimeter
Surface Finish 2B, No.1, No.4, No.8 Mirror Finish
O.D. Sizes up to 12 inch NB, 6.00 mm Other Dia. upto 250 mm Other Dia.
Schedule Thickness Ranges SCH XS, SCH 40, SCH 80S, SCH 5, SCH 80, SCH XXS, SCH 160, SCH10, All Schedules
Form “U” Shape, Square, Pan Cake Coils, Coiled, Rectangular, Round, Hydraulic Tubes.
Delivery Condition Annealed & Pickled, Polished, Bright & Annealed, etc

Composition Chart of SS 904L Welded Pipe

C Cr Cu Mn Mo Ni P S
Max     Max     Max Max
0.02 19.0-23.0 2.0 4.0-5.0 23.0-28.0 0.045 0.035 1.0

Trusted Stainless Steel 904L EFW Pipe Manufacturer in India, View DIN 1.4539 ERW Pipe Dimensions.

DIN 1.4539 Seamless Pipe Dimensions Chart

Nominal Pipe Size [in.] O.D. [in.] O.D. [mm] Wall Thk. [in.] Wall Thk. [mm] Wght [lb/ft] Wght [kg/m]
1/8" NPS 6 0.41 10.3 0.068 1.73 0.24 0.37
1/4" NPS 8 0.54 13.7 0.088 2.24 0.42 0.63
3/8" NPS 10 0.68 17.1 0.091 2.31 0.57 0.84
1/2" NPS 15 0.84 21.3 0.109 2.77 0.85 1.27
3/4" NPS 20 1.05 26.7 0.113 2.87 1.13 1.69
1" NPS 25 1.32 33.4 0.133 3.38 1.68 2.5
1 1/4" NPS 32 1.66 42.2 0.14 3.56 2.27 3.39
1 1/2" NPS 40 1.9 48.3 0.145 3.68 2.72 4.05
2" NPS 50 2.375 60.3 0.154 3.91 3.65 5.44
2 1/2" NPS 65 2.875 73.0 0.203 5.16 5.79 8.63
3" NPS 80 3.5 88.9 0.216 5.49 7.58 11.29
3 1/2" NPS 90 4.0 101.6 0.226 5.74 9.11 13.57
4" NPS 100 4.5 114.3 0.237 6.02 10.79 16.07
5" NPS 125 5.563 141.3 0.258 6.55 14.62 21.77
6" NPS 150 6.625 168.3 0.28 7.11 18.97 28.26
8" NPS 200 8.625 219.1 0.322 8.18 28.55 42.55
10" NPS 250 10.75 273.0 0.365 9.27 40.48 60.31
12" NPS 300 12.75 323.8 0.406 10.31 53.52 79.73
14" NPS 350 14.0 355.6 0.437 11.13 54.57 94.55
16" NPS 400 16.0 406.4 0.5 12.7 82.77 123.3
18" NPS 450 18.0 457.0 0.562 14.27 104.67 155.8
20" NPS 500 20.0 508.0 0.594 15.09 123.11 183.42
24" NPS 600 24.0 610.0 0.688 17.48 171.29 255.41
32" NPS 800 32.0 813.0 0.688 17.48 230.08 342.91
Refer AISI 904L Stainless steel Hollow Section Pipe Weight Chart, Stainless steel 904L tubes Equivalent Grades.

Standard Weight of SA 312 TP 904L Square Pipe

NPS O.D. Wall Thk.   Wght Wght
in mm in mm Sched kg/Mtr Lb/ft
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

Stainless Steel 904L Seamless Pipe Equivalent Grades

STANDARD WERKSTOFF NR. UNS JIS KS BS AFNOR EN
SS 904L 1.4539 N08904 SUS 904L STS 317J5L 904S13 Z2 NCDU 25-20 X1NiCrMoCu25-20-5