Stainless Steel 304 ERW (Electric Resistance Welded) pipes are made from 304-grade stainless steel, which is known for its excellent corrosion resistance and formability. The ERW process involves welding the seam of the pipe using electrical resistance, resulting in a strong, consistent weld. Stainless steel 304 ERW pipe is widely used in various industries due to its durability, corrosion resistance and hygienic properties. Some common applications include:
- Pipeline system
- Food and Beverage Processing
- Chemical and Pharmaceutical Industry
- Petroleum and natural gas
- Building and Construction
SS 304 ERW pipe specification
|
Specification |
Requirement |
|
ASTM A790 |
Covers seamless and welded stainless steel pipes, including SS 304 ERW pipes, outlining material properties, manufacturing process, dimensional tolerances, and testing requirements. |
|
ASME B36.19M |
Provides dimensional specifications for welded steel pipes, including SS 304 ERW pipes, defining the outer diameter (OD), wall thickness, and minimum weights for different NB sizes and schedules. |
|
ASTM A312 |
Specifically covers the requirements for electric resistance welded (ERW) stainless steel pipes, including SS 304 ERW pipes. It details the manufacturing process, testing procedures, and acceptance criteria for ERW pipes. |
Chemical composition of SS 304 ERW pipe
|
Element |
Weight Percentage |
|
Chromium (Cr) |
18-20 |
|
Nickel (Ni) |
8-10 |
|
Manganese (Mn) |
1-2 |
|
Silicon (Si) |
≤1 |
|
Carbon (C) |
≤0.08 |
|
Iron (Fe) |
Balance |
Stainless steel 304 ERW pipe equivalent grades
|
Standard |
Grade |
Equivalent Grade |
|
ASTM |
A312 TP304 |
EN 1.4301, X5CrNi18-10 |
|
ASME |
SA312 TP304 |
EN 1.4301, X5CrNi18-10 |
|
DIN |
1.4301 |
EN 1.4301, X5CrNi18-10 |
|
BS |
304S1 |
EN 1.4301, X5CrNi18-10 |
|
JIS |
SUS304 |
EN 1.4301, X5CrNi18-10 |
|
GB |
0Cr18Ni9 |
EN 1.4301, X5CrNi18-10 |
SS 304 ERW pipe mechanical & physical properties
|
Property |
Typical Value |
Unit |
|
Tensile Strength |
500-750 |
MPa (72,500-108,000 psi) |
|
Yield Strength |
200-300 |
MPa (29,000-43,500 psi) |
|
Elongation |
40-60 |
% |
|
Impact Strength |
60-120 |
J (44-88 ft-lbs) |
|
Density |
7.9 |
g/cm³(0.289 lb/in³) |
|
Thermal Conductivity |
16.2 |
W/mK (9.4 Btu/in ft-hr) |
|
Melting Point |
1450-1500 |
°C (2642-2732°F) |
|
Hardness |
HRB 85-95 |
- |
United Steel Industry As the most important steel pipe manufacturer and exporter in China, in the past 20 years, we have completed more than 100 projects, with partners in more than 100 countries, and established relationships with oil and gas and EPC companies in many countries business relationship.
For more information about the product price, catalog and rolling mill inspection certificate,
please consult:Email:Sales@usisteels.com
