Schedule 40 Galvanized Iron Pipe Specification, Schedule 45 Galvanized Steel Pipe

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904L super austenitic stainless steel is low carbon high nickel, it belongs to molybdenum austenitic stainless steel and its activation passivation change ability is good. Also, its corrosion resistance is excellent in acetic acid, formic acid and phosphoric acid.

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%

 

The following table is the size of the pipe. For any other detail information, please feel free to contact us.

Usually, it only takes 3 working days for us to make delivery if the products are ready in stock.

Of course, unusual size can also be customized according your request.

 

FAQ: What should be pay attention to when welding 904L tube?

904L is a single phase austenite structure with high Ni and low C .Hot cracks are easy to occur in welding, especially in arc pits. So we should pay attention to the following tips.

1.Control the P, S and other toxic elements content in the base material.

2.Big groove, small fusion ratio.

3.Small heat input, no swinging allowed.

4.The interlayer temperature should be less than 60℃.

5.Reasonable welding order to reduce welding stress.

6.Choose low hydrogen welding materials.

7.Welding at the arc after grinding to avoid arcing crater crack.

8.Carbon arc gouging is not allowed on the back to prevent carburizing

904L stainless steel tube

904L stainless steel pipe

Our company has many years of working experience in the industry, responsible for market development, have a certain understanding of the Schedule 40 Galvanized Iron Pipe Specification, Schedule 45 Galvanized Steel Pipe market. Your Success, Our Glory: Our aim is to help customers realize their goals. Our company has a group of advanced skilled personnel after years of technological innovation and accumulation, and introduces advanced production technology at home and abroad strictly implementing the quality management system.

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