Stainless Steel 904L(UNS N08904) Tube, Pipe, Fittings, Flanges

​Stainless Steel Tradename UNS no. Werkstoff No. Density (g/cm3) 904L 904L N08904 1.4539 8.00

wilsonpipeline is a supplier of stainless steel 904L pipe, stainless steel 904L tube, stainless steel 904L fittings, stainless steel 904L forgings, stainless steel 904L flanges, and stainless steel 904L fasteners including; stainless steel 904L nuts, stainless steel 904L bolts and more.

UNS NO8904, commonly known as 904L stainless steel, is a low carbon austenitic nickel-chromium stainless steel with additions of molybdenum and copper.  stainless steel 904L pipes, stainless steel 904L sheets and stainless steel plates and other stainless steel 904L product forms products are mainly used where the corrosion resistant properties of 316L and 317L are inadequate, especially in severe corrosive conditions.

Due to the combination of high contents of chromium, nickel, molybdenum and copper, stainless steel 904L exhibits greater resistance to pitting and crevice corrosion and to general corrosion in reducing acids.

When compared to 2205 grade duplex stainless steel, 904L has similar corrosion resistant properties but lower mechanical strength. 2205 is also a lower cost option compared to 904L, but is not suitable for temperatures above 300°C. Overall among the three grades i.e. 904L, 316L and 2205, 316L stainless steel is the lowest cost option, but offers comparatively lower corrosion resistance.

Stainless steel 904L pipes, stainless steel 904L flanges and 904L fittings are widely used for manufacturing tanks, vessels, piping, heat exchangers, and other equipment used for handling sulphuric, phosphoric and acetic acids, bleaching operations in the pulp and paper industry. In addition, 904L tube is widely used for general piping requirements in the oil and gas, chemical and pharmaceutical industries.

Stainless Steel 904L Specifications

Stainless Steel 904L Bars, Rods, Wire: ASTM B 649 / ASME SB 649

Stainless Steel 904L Seamless Pipe and Tubes: ASTM B677, ASME SB677

Stainless Steel 904L Welded Pipe / Tubes:  ASTM B 673 / 674, ASME SB 673 / 674

Stainless Steel 904L Fittings and Stainless Steel 904L Flanges: ASTM B 366 / ASME   SB 366

Stainless Steel 904L Chemical Composition, %

C Mn Si P S Cr Mo Ni Cu Fe 0.020 max. 2.00 max. 1.00 max. 0.045 max. 0.035 max. 19.0 – 23.0 4.0 – 5.0 23.0 – 28.0 1.0- 2.0 Balance

Physical & Mechanical Properties of Stainless Steel 904L

904L Density 8.00 Melting Range,℃ 1300-1390 ℃ Elongation % 35 min. Tensile Strength (Mpa) 490 Yield Strngth (Mpa) 220 Hardness (Brinell) 150

* Technical specifications included herein should be used as a guideline only

Stainless Steel 904L Pipes, Tubes / Tubing, and Butt Weld Fittings

Stainless steel 904L pipes and tubes are available in both seamless and welded form in OD and NB sizes. In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size Alloy 904L cold drawn seamless tubes from our factory.

Stainless steel 904L pipes and tubes can be offered in random lengths of up to 6meters long or cut to a specific length as ordered.

Stainless Steel 904L Seamless, Welded Pipe/ Tube, and Fittings Dimensions

Out diameter Wall thickness Length Pipe NB Sizes 1/4 “ ~ 16” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 Upto 6 Meters Butt Weld Fittings NB Sizes 1/2″ ~ 12” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 – Seamless (Custom Sizes) 5.0mm ~ 203.2mm As per requirement Upto 6 Meters Welded (in Stock + Custom Sizes) 5.0mm ~ 1219.2mm 1.0 ~ 15.0 mm Upto 6 Meters

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