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904L is a highly alloyed, low carbon containing, non-stabilized austenitic stainless steel grade. A249 UNS N08904 Seamless Welded Pipe Tube Copper has been added to the alloy of 904L Stainless Steel Pipe. Hence, its resistance to strong reducing acids such as sulfuric acid is very high. The lower content of carbon makes it easier to produce the AISI 904L Welded Pipe according to specification ASTM A312. Though the content of carbon is lower, these pipes could be used for high temperature applications.
The significant inclusion of nickel to the alloy of ASME SA 312 TP904L makes it possible for the pipes to have an outstanding performance even in elevated settings. Along with being a non-magnetic alloy, the A249 UNS N08904 Seamless Welded Pipe Tube also exhibits good resistance to stress related corrosion cracking. The presence of molybdenum in the ASTM A312 TP 904L Pipe reduces the occurrence of crevice corrosion. Along with being used in applications between moderate to high temperatures, the 904L SS Pipe is primarily useful for general corrosion applications.
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The ASTM A312 TP 904L material is labeled as a super austenitic stainless steel alloy because of its corrosion resistance properties. Because the alloy has a higher content of molybdenum in its alloy, the ASME SB677 TP 904L Square Pipe exhibits superior resistance to localized attack, specifically from corrosion forms like pitting and crevice corrosion. Copper content in the ASTM B673 UNS N08904 ERW Pipe greatly improves resistance to strong reducing acids, especially (H2SO4) sulphuric acid. With excellent weldability and formability 904L also maintain non-magnetic state in all conditions. 904L Stainless Steel Pipe provides excellent toughness , even down to cryogenic temperatures with its austenitic structure.
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Standard Specification ASTM A 312, ASME SA 312, ASTM B677, ASTM A269, ASTM A249 Size ½\" to 6\" NB Sch 10s, 40s, & 80s, 160s Wall Thickness 0.1 - 60 mm SS Seamless Pipe Length Single Random Length 5to7 mtr Double Random Length 10-12 mtr Seamless SS Pipe Surface Finish Cold Finish, Bright, Polished, Annealing, Pickling, or as per client requirements Standard JIS, AISI, ASME, ASTM, AMS, GB, DIN, EN, GOST Manufacturing types Seamless, Welded, ERW, EFW Manufacturing Shapes Round, Square, Rectangle, Prefabricated Manufacturing Technology Hot / Cold Formed Inspection, Test Reports EN 10204 3.1, Mill Test Certificates, PMI Test Reports, Chemical Reports, Mechanical Reports, NABL Approved Lab Reports, Visual Inspection Reports, Destructive and Non Destructive Test Reports, Third Party Inspection Technique Cold Rolled Hot Rolled
-Carbon (A105, A106, A53, API 5L GR.B X42 X52 X60 X65 )
-Stainless (SS304/304L, SS316/316L, SS321, SS316Ti, SS347H, SS309S, SS310S)
-Alloy (A333, A420, A860, A213, A333, A694)
-Duplex (F51/S31803, F53/S32750, F55/S32760, 254SMO/S31254,904L/NO8904)
-Nickel alloy (Alloy 20/31, Nickel 200/201, Monel 400/K500, Inconel 600/625, Incoloy 800/800H/800HT/825/925)
Grade C Mn Si P S Cr MO Ni CU 904L Min - - - - - 19.0 4.00 23.00 1.00 max 0.20 2.00 1.00 0.045 0.035 23.0 5.00 28.00 2.00
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.
Density Elastic Modulus Mean Co-eff of Thermal Expansion (µm/m/°C) Thermal Conductivity Specific Heat 0-100°C Elec Resistivity 0-100°C 0-315°C 0-538°C At 20°C At 500°C 904L 8000 200 15 - - 13 - 500 850
Grade
(kg/m3)
(GPa)
(W/m.K)
(J/kg.K)
(nΩ.m)
Grade UNS No Old British Euronorm Swedish SS Japanese JIS BS En No Name 904L N08904 904S13 - 1.4539 X1NiCrMoCuN25-20-5 2562 - These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.
• ASTM B677 TP 904L Stainless Steel Seamless Pipes
• ASTM B677 TP 904L Stainless Steel Seamless Tubes
• ASTM B673 TP 904L Stainless Steel Welded Pipes
• ASTM B674 TP 904L Stainless Steel Welded Tubes
• SS 904L Seamless Pipes
• SS 904L ERW Pipes
• SS 904L EFW Pipes
• SS 904L Welded Pipes
• SS 904L Rectangular Pipes
• SS 904L Seamless Tubes
• SS 904L ERW Tubes
• SS 904L EFW Tubes
• SS 904L Welded Tubes
• SS 904L stainless steel Tubes
