Welded & Seamless 904L Stainless Steel Pipe

904L is a low carbon content high nickel super Austenitic stainless steel, excellent corrosion in sulphuric acid, ethylic acid, phosphoric acid, 904L stainless steel pipe include welded pipe and seamless pipe.

Basic specification
  • Welded: A249, A269, A312, A554, A789, A790
  • Seamless: A213, A269, A312, A511, A789, A790
  • Grade: 904L
  • Surface: Annealing, bright annealing, polishing
  • NPS: 1/8″ – 24″
  • Sch: Sch5 – Sch160
  • Shapes: round, U type
  • Application: Heat exchanger, boiler, condenser, cooling, heating

904L stainless steel Chemical Composition (max %):

Grade Ni Cr Mo Cu F C Mn Si P S
904L 23 – 28 19 – 23 4 -5 1 – 2 rest  0.02  2  1  0.045  0.035
Alternative steel No. 1.4539 and N08904.

904L stainless steel Mechanical Properties

Condition & GradeTensile StrengthYeild StrengthElognationHardness
Annealed71 (490)31(215)3590 HRB max

904L features

  • Excellent resistance to stress corrosion cracking
  • Excellent formability, machinability and weldability
  • Excellent intergranular corrosion resistance
  • Excellent pitting and crevice corrosion
  • High temperature resistance

Applications

  • Petroleum and petrochemical equipment, for example: Reactor
  • Storage and transportation equipment of sulphuric acid, for example: heat exchanger
  • Sea water treatment equipment, sea water heat exchanger
  • Paper industry equipment, sulfuric acid, nitric acid equipment, making acid, pharmaceutical industry
  • Pressure vessel
  • Food equipment

904L stainless steel pipe & tube specifications

  • ASTM A 213 – seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes
  • ASTM A 249 – welded austenitic steel boiler, superheater, heat-exchanger, and condenser tubes
  • ASTM A 269 – seamless and welded austenitic stainless steel tubing for general service
  • ASTM A 312 – seamless, welded, and heavily cold worked austenitic stainless steel pipes
  • ASTM A 358 – electric-fusion-welded austenitic chromium-nickel stainless steel pipe for high-temperature service and general applications
  • ASTM A 511 – seamless stainless steel mechanical tubing
  • ASTM B 673 – uns n08904, uns n08925, and uns n08926 welded pipe
  • ASTM B 674 – uns n08904, uns n08925, and uns n08926 welded tube
  • ASTM B 677 – uns n08904, uns n08925, and uns n08926 seamless pipe and tube

DONGSHANG STAINLESS is a leading manufacture of seamless & welded 904L stainless steel pipe and tube in China, ISO9001:2008 and PED certified supplier since 2006, exporting 904L stainless steel pipe to many countries for special purpose, such as Russia, Middle east, USA, Germany.

welded & seamless stainless steel pipe