Schedule 40 Hot DIP Galvanized Steel Pipe Manufacturers China

In order to rapidly develop the market and realize the industrialization and scale of ss 316 pipe list, 304L Cold Drawn Rectangular Pipe, 4" schedule 40 steel pipe, we continue to create and improve the products, with the goal of shortening the product design cycle and reducing development costs. Our company has a forward-looking vision. We actively accept all viewpoints and practices that are in line with the law of social development and conducive to progress. We provide customers with the best cost-effective solutions with a professional team, and create the greatest value for customers with an efficient operation system. We are honest, professional and dedicated, and give back to customers with a sincere heart.

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

As a leading supplier of Schedule 40 Hot DIP Galvanized Steel Pipe Manufacturers China, we always sincerely dealing with every client, our aim is to help our client to get more profits in cooperation with us. 'Bold innovation, originality, excellence' is our unremitting goal. No matter far or near are guests, we welcome you, you are the guests who have supported us for a long time, we will provide you with better service as always.

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