904L Stainless Steel Tube and Pipe

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.