904L Stainless Steel Tube and Pipe

1. Stainless seamless tube
Φ1--530mm×1--50mm
2.Stainless welded tube
Φ1--2020mm×1--50mm
3.Grade
201,304,316L,420,430,
310S,347,2507,2205
4.Standard
GB、ASTM、ASME、DIN、JIS

CHECK STANDARD [restabs alignment="osc-tabs-left" responsive="false"] [restab title="Specification" active="active"]

Specifications of Stainless Steel Tubes:

1. Standard: GB, ASTM, JIS, DIN
2. Grade: 201,202,301, 321, 304, 304L, 316, 316L, 409, etc
3. OD range: 8mm-279.4mm
4. Wall thickness range: 0.3mm-30mm
5. Length: max.18000mm or as demand
6. Surface finish: Polishing (180#,220#,240#,320#400#,600#), Hairline, aid pickling No.1 and so on
7. Manufacture technology: cold drawn/cold rolled
8. Type: Seamless & Welded

904L stainless steel tube has very low carbon content (maximum 0.020%), so in the case of general heat treatment and welding, no carbide precipitation. This eliminates the risk of intergranular corrosion after general appeared in the heat treatment and welding. Due to the high content of chrome-nickel molybdenum, and copper added, so 904L stainless steel tube

Advantages:

1. Raw material choices.

All of raw stainless steel coils are from YUSCO, Baosteel, TISCO.
From slitting to production, we care more about the tolerance and raw material mechanical parameters to guarantee the tube quality control.

2. Various mold choices

With years of development, shanghai Yieh United Corporation is able to produce various OD tubes with different thickness.

For OD<50mm, Shanghai Yieh United Corporation has induced automatic welding machine. The daily production is 150 tons.

For OD>50mm，Shanghai Yieh United Corporation apply advantageous manual welding process.

3. Surface Polishing.

Shanghai Yieh United Corporation can offer different tube and pipe surface from No.1 to #400 surface based on customers' requirement.

 

4. Pipe Surface Pickling.

5. Quality Control(Water pressure check)

For every welded tube diameter <50mm, Shanghai Yieh United Corporation strictly test every welded tube in order to guarantee the quality for our customers.

 

[/restab] [restab title="Application"]

Applications of Stainless Steel Pipes/Tubes:

1).Petroleum, Chemical enterprise, super heater of boiler, heat exchanger

2).High temperature resistant transmission fluid pipe in power station

3).Decorative purpose.

4).For food processing.

5) For machine spare parts manufacture.

[/restab] [restab title="Value Added Service"]For tubes, Shanghai Yieh United Corporation offer polishing and bending service.

1. polishing surface(No.4, 8K)

2. Bending(based on customers' requirement)

[/restab] [restab title="Packing"]

This is Shanghai Yieh United Corporation standarded package.

 

[/restab] [restab title="Production Line"]

Curently, Shanghai Yieh United Corporation has three different production lines including welding, cold drawing, and cold rolling.

1. Welding.

 

2. Cold drawin and Cold rolling for seamless stainless steel tube and pipe.

Based on customers requirement, Shanghai Yieh United Corporation has two production lines.

For OD<100 mm, cold rolling is applied to guarantee the surface and tolerance requirement.

For OD> 100mm, cold rolling is applied to reach the tube diameter.

The overall production Process:

[/restab][restab title="QC"]

Every batch from Shanghai Yieh United Corporation has been tested with meticulous experiment.

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