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Stainless Steel 904L Pipes are high-alloy austenitic pipes known for their excellent corrosion resistance and durability in harsh conditions. These pipes contain elements like carbon, manganese, nickel, chromium, sulfur, molybdenum, nitrogen, copper, phosphorus, and silicon, which together enhance strength and resistance to aggressive chemicals. With a tensile strength of 490 MPa, yield strength of 220 MPa, and elongation of 35%, these pipes perform well under pressure and high temperatures. These pipes are reliable for heavy-duty projects due to their high density, superior electrical resistance, and thermal conductivity. Preston Alloys is a prominent SS 904L pipe supplier that provides products fulfilling rigorous quality and performance standards. The alloy is a reliable choice in industries requiring both strength and corrosion resistance due to its mechanical balance and physical stability.
Stainless Steel 904L Pipe offers high resistance to pitting, stress corrosion cracking, and crevice corrosion, even in strong reducing acids. Its resilience makes it suitable to be used in the long term in chemical process plants, offshore gas and oil platforms, pharmaceutical machinery, and marine environments. The material can hold strength at high and low temperatures, making it a reliable option in varied operating conditions. Its non-magnetic nature in most conditions and ability to withstand chloride attack further increase its value for specialized industrial use.
904L pipes are available in different forms like ERW, seamless, welded, and EFW types. The sizes vary from 4 mm to 1219.2 mm in outside diameter, and the wall thickness varies from 0.1 mm to 60 mm, with customized options available. The pipes are available in different schedules, including SCH 10, SCH 40, SCH 80, and SCH 80S. The pipes are also available with a bright, cold finish as well as annealed, polished, and pickled surfaces. Manufacturing processes, including cold rolling, hot rolling, hot forming and cold forming offer dimensional accuracy and uniform quality. Round, square, rectangular and box sections are among the shapes that offer flexibility for various fluid transport and structural requirements.
To ensure adherence to worldwide requirements, each batch of 904L pipes is undergoes rigorous quality testing including third party inspections. Tests confirm mechanical strength, chemical balance, and surface integrity. Packaging is done in wooden boxes, plastic bags, or steel strip bundles, with additional options available as per customer requests. The combination of careful testing, secure packaging, and proven performance makes these pipes a dependable choice for critical applications. Contact now to get high-quality stainless steel 904L pipes for industrial needs.
| Specifications | ASTM B673, B677 / ASME SB673, SB 677 |
| Dimensions | ASTM, ASME and API |
| SS 904L Pipes | 1/2″ NB – 16″ NB |
| ERW 904L Pipes | 1/2″ NB – 24″ NB |
| EFW 904L Pipes | 6″ NB – 100″ NB |
| Size | 1/8″NB TO 30″NB IN |
| Specialized in | Large Diameter Size |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
SS 904L Pipe Manufacturing Standards
| ASTM | ASME |
| A358 TP904L | SA358 TP904L |
| A312 TP904L | SA312 TP904L |
| A213 TP904L | SA213 TP904L |
| A269 TP904L | SA269 TP904L |
| A249 TP904L | SA249 TP904L |
| A409 TP904L | SA409 TP904L |
| A813 TP904L | SA813 TP904L |
| A376 TP904L | SA376 TP904L |
| A814 TP904L | SA814 TP904L |
| A511 TP904L | SA511 TP904L |
| A554 TP904L | SA554 TP904L |
| A632 TP904L | SA632 TP904L |
| A778 TP904L | SA778 TP904L |
| A688 TP904L | SA688 TP904L |
| Size (inch) | OD (mm) | OD (inch) | WT (mm) | WT (inch) |
| 3/8" NPS 10 | 17.1 | 0.68 | 2.31 | 0.091 |
| 1/4" NPS 8 | 13.7 | 0.54 | 2.24 | 0.088 |
| 1/2" NPS 15 | 21.3 | 0.84 | 2.77 | 0.109 |
| 1" NPS 25 | 33.4 | 1.32 | 3.38 | 0.133 |
| 3/4" NPS 20 | 26.7 | 1.05 | 2.87 | 0.113 |
| 1 1/4" NPS 32 | 42.2 | 1.66 | 3.56 | 0.14 |
| 2" NPS 50 | 60.3 | 2.375 | 3.91 | 0.154 |
| 1 1/2" NPS 40 | 48.3 | 1.9 | 3.68 | 0.145 |
| 2 1/2" NPS 65 | 73.0 | 2.875 | 5.16 | 0.203 |
| 3 1/2" NPS 90 | 101.6 | 4.0 | 5.74 | 0.226 |
| 3" NPS 80 | 88.9 | 3.5 | 5.49 | 0.216 |
| 4" NPS 100 | 114.3 | 4.5 | 6.02 | 0.237 |
| 6" NPS 150 | 168.3 | 6.625 | 7.11 | 0.28 |
| 1/8" NPS 6 | 10.3 | 0.41 | 1.73 | 0.068 |
| 5" NPS 125 | 141.3 | 5.563 | 6.55 | 0.258 |
| 8" NPS 200 | 219.1 | 8.625 | 8.18 | 0.322 |
| 12" NPS 300 | 323.8 | 12.75 | 10.31 | 0.406 |
| 10" NPS 250 | 273.0 | 10.75 | 9.27 | 0.365 |
| 14" NPS 350 | 355.6 | 14.0 | 11.13 | 0.437 |
| 18" NPS 450 | 457.0 | 18.0 | 14.27 | 0.562 |
| 16" NPS 400 | 406.4 | 16.0 | 12.7 | 0.5 |
| 20" NPS 500 | 508.0 | 20.0 | 15.09 | 0.594 |
| 32" NPS 800 | 813.0 | 32.0 | 17.48 | 0.688 |
| 24" NPS 600 | 610.0 | 24.0 | 17.48 | 0.688 |
| NPS | OD | WT | Weight | Weight | |||
| mm | in | mm | in | SCH | Lb/ft | kg/Mtr | |
| 1" | 33 | 1.315 | 3.378 | 0.133 | 40 STD | 1.679 | 2.501 |
| 4.547 | 0.179 | 80 STD | 2.172 | 3.325 | |||
| 3/4" | 27 | 1.050 | 2.870 | 0.113 | 40 STD | 1.131 | 1.684 |
| 3.912 | 0.154 | 80 STD | 1.474 | 2.195 | |||
| 1 1/4" | 42 | 1.660 | 3.556 | 0.140 | 40 STD | 2.273 | 3.385 |
| 4.851 | 0.191 | 80 STD | 2.997 | 4.464 | |||
| 2" | 60 | 2.375 | 3.912 | 0.154 | 40 STD | 3.653 | 5.441 |
| 5.537 | 0.218 | 80 STD | 5.022 | 7.480 | |||
| 1 1/2" | 48 | 1.900 | 3.683 | 0.145 | 40 STD | 2.718 | 4.048 |
| 5.080 | 0.200 | 80 STD | 3.361 | 5.409 | |||
| 2 1/2" | 73 | 2.875 | 5.516 | 0.203 | 40 STD | 5.793 | 8.629 |
| 7.010 | 0.276 | 80 STD | 7.661 | 11.411 | |||
| 4" | 114 | 4.500 | 6.020 | 0.237 | 10.790 | 16.073 | |
| 8.560 | 0.337 | 14.983 | 22.318 | ||||
| 1/2" | 21 | 0.840 | 2.769 | 0.109 | 40 STD | 0.851 | 1.268 |
| 3.734 | 0.147 | 80 STD | 1.088 | 1.621 | |||
| 3" | 89 | 3.500 | 5.486 | 0.216 | 40 STD | 7.576 | 11.284 |
| 7.620 | 0.300 | 80 STD | 10.253 | 15.272 | |||
| 6" | 168 | 6.625 | 4.775 | 0.188 | 12.924 | 19.252 | |
| 5.563 | 0.219 | 14.983 | 22.318 | ||||
| 5.516 | 0.203 | 13.923 | 20.739 | ||||
| 6.350 | 0.250 | 17.021 | 25.354 | ||||
| 7.925 | 0.312 | 21.036 | 31.334 | ||||
| 7.112 | 0.280 | 40 STD | 18.974 | 58.263 | |||
| 9.525 | 0.375 | 25.031 | 37.285 | ||||
| 12.700 | 0.500 | 32.708 | 48.719 | ||||
| 10.973 | 0.432 | 80 XHY | 28.573 | 42.561 | |||
| NB | OD (inch) | 10 | 10S | 40 | 40S & Std | 80S & E.H | 160 | 80 |
| 1/4 | .540 | .065 | .065 | .088 | .088 | .119 | - | .119 |
| 1/2 | .840 | .083 | .083 | .109 | .109 | .147 | .187 | .147 |
| 3/8 | .675 | .065 | .065 | .091 | .091 | .126 | - | .126 |
| 3/4 | 1.050 | .083 | .083 | .113 | .113 | .154 | .218 | .154 |
| 1 1/4 | 1.660 | .109 | .109 | .140 | .140 | .191 | .250 | .191 |
| 1 | 1.315 | .109 | .109 | .133 | .133 | .179 | .250 | .179 |
| 1 1/2 | 1.900 | .109 | .109 | .145 | .145 | .200 | .281 | .200 |
| 2 1/2 | 2.875 | .120 | .120 | .203 | .203 | .276 | .375 | .276 |
| 2 | 2.375 | .109 | .109 | .154 | .154 | .218 | .343 | .218 |
| 3 | 3.500 | .120 | .120 | .216 | .216 | .300 | .437 | .300 |
| 4 | 4.500 | .120 | .120 | .237 | .237 | .337 | .531 | .337 |
| 3 1/2 | 4.000 | .120 | .120 | .226 | .226 | .318 | - | .318 |
| 4 1/2 | 5.000 | - | - | - | .247 | .355 | - | - |
| 6 | 6.625 | .134 | .134 | .280 | .280 | .432 | .718 | .432 |
| 5 | 5.563 | .134 | .134 | .258 | .258 | .375 | .625 | .375 |
| 7 | 7.625 | - | - | - | .301 | .500 | - | - |
| 1/8 | .405 | .049 | .049 | .068 | .068 | .095 | - | .095 |
| 9 | 9.625 | - | - | - | .342 | .500 | - | - |
| 8 | 8.625 | .148 | .148 | .322 | .322 | .500 | .906 | .500 |
| 10 | 10.750 | .165 | .165 | .365 | .365 | .500 | 1.125 | .593 |
| 12 | 12.750 | .180 | .180 | .406 | .375 | .500 | 1.312 | .687 |
| 11 | 11.750 | - | - | - | .375 | .500 | - | - |
| 14 | 14.000 | .250 | .188 | .437 | .375 | .500 | 1.406 | .750 |
| 18 | 18.000 | .250 | .188 | .562 | .375 | .500 | 1.781 | .937 |
| 16 | 16.000 | .250 | .188 | .500 | .375 | .500 | 1.593 | .843 |
| OD (mm) | Tolerance (mm) |
| 60 and above | +/- 0.25 |
| 38 to 60 | +/- 0.20 |
| 35 to 38 | +/- 0.15 |
| 4 to 35 | +/- 0.08 |
| Temperature (°F) | Btu/(lb °F) | Temperature (°C) | J/(kg °C) |
| 1300 | 0.15 | 700 | 615 |
| 1200 | 0.15 | 600 | 605 |
| 1000 | 0.14 | 500 | 590 |
| 800 | 0.14 | 400 | 570 |
| 600 | 0.13 | 300 | 545 |
| 400 | 0.12 | 200 | 515 |
| 200 | 0.12 | 100 | 485 |
| 68 | 0.11 | 20 | 460 |
| OD (in.) | WT (inch) | |||||||
| .120 | .109 | .095 | .083 | .065 | .049 | .035 | .028 | |
| Pressure (psig) | ||||||||
| 1 | 4300 | 3900 | 3400 | 2900 | 2200 | - | - | - |
| 3/4 | - | - | 4600 | 4000 | 3000 | 2200 | - | - |
| 1/2 | - | - | - | - | 4400 | 3200 | 2300 | - |
| 3/8 | - | - | - | - | 6100 | 4400 | 3100 | - |
| 5/16 | - | - | - | - | 7300 | 5400 | 3700 | - |
| 1/4 | - | - | - | - | 9500 | 7000 | 4800 | 3700 |
| 1/8 | - | - | - | - | - | - | 10100 | 7900 |
| Surface Finish | Internal Surface | Exterbal Surface | |||
| Roughness Average | Roughness Average | ||||
| μm | μ inch | μm | μ inch | ||
| BA | Beight-Annealed | 1.0,0.6,0.8,0.5 | 40,25,32,20 | 0.8 | 32 |
| AP | Annealed-Pickled | Not defined | Not defined | 1.0 or Not defined | 40 or Not defined |
| EP | Electro-Polish | 0.38,0.20,0.25;0.13 | 15,7,10,5 | 0.8 | 32 |
| MP | Mechanical-Polish | 1.0,0.6,0.8,0.5 | 40,25,32,20 | 0.8 | 32 |
SUS 904L Pipe Decorative Pipe
SS 904L Hot Finished Pipe
DIN 1.4539 Cold-Finished Pipe
AISI 904L Annealed Pipe
904L Stainless Steel Round Pipe
ASME SA 312 N08904 Square Pipe
904L SS Rectangular Pipe
AISI 904 Polished Pipe
Contact Us for 904l Stainless Steel Pipe Price
| 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 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 904L | 490 | 220 | 35 | 70-90 typical | – |
| Rockwell Hardness value range is typical only; other values are specified limits. | |||||
| Property | Unit | Value |
| Density | kg/dm³ | 8 |
| Modulus of elasticity | GPa | 195 |
| Thermal conductivity | W/m°C | 15.8 |
| Thermal Capacity | J/kg°C | 450 |
| Electrical resistivity | µΩm | 1 |
SS 1.4539 Pipe of Welding Material
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 904L | N08904 | 904S13 | X1NiCrMoCu25-20-5 | 1.4539 | – | – | SUS 890L |