904L Stainless Steel ERW Pipe
Product Description
904L austenitic stainless steel pipe. According to different manufacturing processes, 904L stainless steel pipe is divided into two types: seamless pipe and welded pipe. The outer diameter range of seamless pipe is 6-720MM, and the wall thickness is 0.4-14MM; the outer diameter range of welded pipe is 12-1820MM.
904L austenitic stainless steel welded pipe is better than 316L, especially resistant to organic acids such as sulfuric acid, phosphoric acid, formic acid and chloride ion environment (such as seawater). The long-term use temperature is ≤400℃, and the short-term temperature can reach 600℃. The oxidation resistance is better than ordinary stainless steel.
904L stainless steel round tube
904L stainless steels chemical composition
|
% |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
Cu |
|
min |
- |
- |
- |
- |
- |
19 |
4 |
23 |
1 |
|
max. |
0.02 |
2 |
1 |
0.045 |
0.035 |
23 |
5 |
28 |
2 |
Mechanical properties of grade 904L stainless steels
|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness(HB) |
|
904L |
490 |
220 |
36 |
150 |
Comparison of Austenitic Stainless Steels
|
Material |
904L |
316L |
254SMO (6Mo) |
|
PREN Value |
≥35 |
~25 |
≥40 |
|
Chloride Resistance |
Excellent (≤5,000 ppm Cl⁻) |
Moderate (≤200 ppm Cl⁻) |
Outstanding (≥10,000 ppm Cl⁻) |
|
Cost |
High |
Low |
Very High |
|
Typical Applications |
Medium chlorides + acidic environments (e.g., H₂SO₄, seawater) |
Mild corrosive conditions (e.g., food processing, architecture) |
High-concentration chlorides + extreme corrosion (e.g., offshore, desalination) |
Why Choose GNEE
GNEE provides 904L seamless pipes (OD 3-577mm), 904L welded pipes (OD 6-219mm) and square pipes, etc., with a wall thickness range of 0.3-14mm, covering different pressure levels. The products comply with international standards such as ASTM A312, ASME BPVC, PED, etc., and have passed ISO 9001, API and other certifications to ensure quality reliability.
904L Welded Stainless Steel Pipes Manufacturer
Hot Tags: 904l stainless steel erw pipe, China 904l stainless steel erw pipe manufacturers, suppliers, factory, welded stainless steel pipe thickness, welded stainless steel pipe standard, welded stainless steel tubing dimensions, 316 Stainless Steel Welded Pipe, welded stainless steel pipe manufacturing process, stainless steel welded tubing standard
You Might Also Like
Send Inquiry