904L Stainless Steel Pipe

904L Stainless Steel Pipe

904L stainless steel pipe is a kind of super austenitic stainless steel with high cr-ni-mo content, and has good corrosion resistance. For the uniform corrosion, pitting and seam corrosion, intergranular corrosion, stress corrosion cracking and general corrosion have good corrosion resistance,...
Product description

904L stainless steel pipe is a kind of super austenitic stainless steel with high cr-ni-mo content, and has good corrosion resistance. For the uniform corrosion, pitting and seam corrosion, intergranular corrosion, stress corrosion cracking and general corrosion have good corrosion resistance, especially in dilute sulfuric acid has excellent corrosion resistance. Mainly used in sewage treatment, chemical, paper and other industries.


Application Area

Oil equipment, vegetable food pot,Acid making industry, pharmaceutical industry.


Chemical Composition(WT%)

C ≤ 0.02

Si ≤ 1.00

Mn ≤ 2.00

P ≤ 0.045

S ≤ 0.035

Cr: 19.0 to 23.0

Ni: 23 to 28

Cu: 1 to 2

Mo: 4 to 5

 

Physical Property

Tensile Strength ≥ 490MPa

Yield strength ≥ 216MPa

Elongation ≥ 35%


904L Application Considerations

1.1 Welding Performance

Like normal stainless steel, the 4 L can be welded in a variety of ways. The most commonly used welding methods for manual arc welding or sui gas shielded welding, welding electrodes or wire metal based on the composition of the base material and higher purity, molybdenum content requirements higher than the parent material. Before welding generally need not preheating, but in cold outdoor operations, in order to avoid the condensation of water vapor, joint parts or adjacent areas can be evenly heated. Note that the local temperature should not exceed 10 0 ℃, so as to avoid carbon agglomeration, causing intergranular corrosion. A small line energy, continuous and fast welding rate is used for welding. After welding, the general need not heat treatment, if heat treatment needs to be heated to 110 ~ 1150 ℃ after rapid cooling.

1.2 Machine Processing Performance

The machining characteristics of 4 L are similar to those of other austenitic stainless steels, with the tendency of sticking knives and hardening in the process of processing. must adopt the front angle carbide tool, uses the vulcanization and the chlorinated oil as the cutting coolant fluid, the equipment and the craft should reduce the processing hardening as the premise. In the cutting process should avoid using slow cutting speed and the amount of feed.

 

 


Hot Tags: 904L stainless steel pipe, China, manufacturers, suppliers, wholesale, stock, price
Related Products
Feedback

Copyright © JIANGSU JIANGHEHAI STAINLESS STEEL CO.,LTD All Rights Reserved.Tel: +8613511656218