904L Stainless Steel Strip

904L stainless steel is a kind of super Austenitic stainless steel material. 904L Stainless Steel Strip is a kind of high alloy Austenitic stainless steel with a very low carbon content. Due to its good corrosion resistance in the dilute acid, it is designed especially for the environment with...

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904L stainless steel is a kind of super Austenitic stainless steel material.

904L Stainless Steel Strip is a kind of high alloy Austenitic stainless steel with a very low carbon content. Due to its good corrosion resistance in the dilute acid, it is designed especially for the environment with harsh corrosion conditions. With high content of chromium and enough content of nickel, the adding of Cu makes it be of strong acid resistance and high resistance especially for chloride crevice corrosion and stress corrosion cracking; and corrosion spot and crack are extremely not easy to appear. Its pitting corrosion resistance are a bit superior than other steel type. It has good machinability and weldability. It has no magnetism in solid solution state.

Corrosion Resistance Performance

904L stainless steel is mainly developed for solving the sulfur corrosion. It can also resist the corrosion of acetic acid at any concentration or any temperature under atmospheric pressure. It has good corrosion resistance in formic acid, phosphoric acid and mixed acid of formic acid and acetic acid. The test results of 904L intergranular corrosion tendency through T method in GB1223-75 shows that, when the steel contains 0.038% carbon, it takes more than an hour's sensitization to reach grain boundary corrosion. Therefore, even the welding thickness is no more than 30mm, there will be no danger of grain boundary corrosion as long as the welding process is appropriate. Pitting potential measurement and pitting test results show that 904L is superior to low grade Cr-Ni Austenitic steel such as 00Cr18Ni10 and 00Cr18Ni14Mo2.

As the amount of Ni in 904L steel reaches 25%, the stress corrosion resistance is better than that of commom Cr-Ni Austenitic steels. Generally speaking, in the water medium containing chloride ions, when 18-8,18-12-Mo stainless steel have stress corrosion cracking, the selection of 904L can often prevent the accidents occurrence.

(1) 201 2B/No.1: 0.3-10 x 1000/1219/1500.
(2) 202 2B/No.1: 0.3-10 x 1000/1219/1500.
(3) 304 2B/No.1: 0.3-50 x 1000/1219/1500/1800/2500.
(4) 304L 2B/No.1: 0.3-50 x 1000/1219/1500/1800/2500.
(5) 321 2B/No.1: 0.3-50 x 1000/1219/1500/1800/2500.

(6)316L 2B/No.1: 0.3-50 x 1000/1219/1500/1800/2500.
(7)309S 2B/No.1: 0.3-50 x 1000/1219/1500/1800/2500.

(8)310S 2B/No.1: 0.3-50 x 1000/1219/1500/1800/2500.

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