904L Super Stainless Steel Sheet

904L Super Stainless Steel Sheet

904L super stainless steel sheet/coil/strips Introduction Grades and standards: UNS N08904, DIN1.4539, ASTM A240 (new standard will be classified as stainless steel series, the original standard ASME SB - 625 to be classified as nickel base alloy series), SUS890L. 904L super austenitic stainless...

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904L super stainless steel sheet/coil/strips


Introduction

Grades and standards: UNS N08904, DIN1.4539, ASTM A240 (new standard will be classified as stainless steel series, the original standard ASME SB - 625 to be classified as nickel base alloy series), SUS890L.

 

904L super austenitic stainless steel belongs to low carbon high nickel, molybdenum austenitic stainless acid-resistant steel, for the introduction of French h. S proprietary materials of the company.Has the very good activation - passivation shift ability, excellent corrosion resistance, in the oxidizing acid such as sulfuric acid, acetic acid, formic acid, phosphoric acid have good corrosion resistance, in neutral chlorine ion medium has the very good pitting resistance, at the same time has good resistance to crevice corrosion and stress corrosion resistance.Used in various concentration of sulfuric acid under 70 , under ordinary conditions of any concentration, temperature resistance of acetic acid and formic acid and acetic acid in mixed acid corrosion resistance is very good too.

 

Chemical Formula

Fe, <0.02% C, 19-23% Cr, 23-28% Ni, 4-5% Mo, <2.0% Mn, <1.0% Si, <0.045% P, <0.035% S, 1.0-2.0% Cu

Heat Resistance

Grade 904L stainless steels offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.

Heat Treatment

Grade 904L stainless steels can be solution heat-treated at 1090 to 1175°C, following by rapid cooling. Thermal treatment is suitable for hardening these grades.

Welding

Welding of grade 904L stainless steels can be performed using all conventional methods. This grade does not require pre-heat and post-weld heat treatments. Grade 904L can be subjected to hot cracking in constrained weldment. Grade 904L electrodes and rods are used for welding grade 904L steels according to AS 1554.6.

Application:

The major applications as below:

  • Wiring in electrostatic precipitators

  • Oil refinery components

  • Seawater cooling devices

  • Gas scrubbing plants

  • Pulp and paper processing industries

  • Acetic, phosphoric and sulphuric acid processing plants



Our coil produce process:

屏幕快照 2017-02-28 下午3.09.39.png

Our packing:

sheet packing way.jpg

 

  Pls feel free to contact with us if anything needed

  Contact: Una Chen

  Phone:+86-18961715099

  Email: xc01@xichustainless.com


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