Square stainless steel pipe
- Grade:
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Specification, Chemical & Mechanical Performance
Brief introduction
Stainless steels are defined as ferrous alloys with the addition of at least 10.5% chromium by weight and are essentially low carbon steels containing significant amounts of chromium. It is the addition of chromium that gives this type of steel its corrosion resisting properties.
The chromium content of the steel allows the formation of an invisible corrosion resistant chromium oxide film on the steel surface. If damaged mechanically or chemically this film is self-healing providing that oxygen, even in very small amounts, is present. The corrosion resistance of stainless steel can be enhanced along with providing other useful properties by increasing the chromium content and by adding other elements such as molybdenum, nickel, and nitrogen.
Chemical composition
Chemical Composition(%) |
|||||||||||
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
N |
Cu |
|
201 |
≤0.15 |
≤0.75 |
5.5~7.5 |
≤0.060 |
≤0.03 |
16.00~18.00 |
3.5~5.5 |
- |
- |
0.08 |
1.5 |
202 |
≤0.15 |
≤1.00 |
7.5~10.00 |
≤0.060 |
≤0.03 |
17.00~19.00 |
4.0~6.0 |
- |
≤0.25 |
|
|
301 |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
16.00~18.00 |
6.00~8.00 |
- |
|
|
|
302 |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.03 |
17.00~19.00 |
8.00~10.00 |
- |
|
|
|
304 |
≤0.07 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
18.00~20.00 |
8.00~10.50 |
- |
|
|
|
304L |
≤0.030 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
18.00~20.00 |
9.00~13.00 |
- |
|
|
|
310S |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
24.00~26.00 |
19.00~22.00 |
- |
|
|
|
316 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
16.00~18.00 |
10.00~14.00 |
2.00~3.00 |
|
|
|
316L |
≤0.03 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
16.00~18.00 |
12.00~15.00 |
2.00~3.00 |
|
|
|
321 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
17.00~19.00 |
9.00~13.00 |
- |
|
|
|
430 |
≤0.12 |
≤0.75 |
≤1.00 |
≤0.040 |
≤0.03 |
16.00~18.00 |
|
- |
|
|
|
2205 |
≤0.03 |
≤1.00 |
≤2.00 |
≤0.030 |
≤0.015 |
22.00~23.00 |
4.5~6.5 |
2.5~3.5 |
|
|
|
2507 |
≤0.03 |
≤0.08 |
≤1.20 |
≤0.035 |
≤0.015 |
24.00~26.00 |
6.00~8.00 |
3.0~5.0 |
|
|
|
904L |
≤0.02 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.035 |
19.00~23.00 |
23.00~28.00 |
4.0~5.0 |
|
1.0~2.0 |
|
INCONEL 028 |
≤0.03 |
≤1.00 |
≤2.50 |
≤0.030 |
≤0.030 |
≤28.0 |
≤34.0 |
≤4.0 |
|
≤1.4 |
|
MONEL 400 |
≤0.30 |
≤0.5 |
≤2.00 |
- |
≤0.024 |
- |
≥63.0 |
- |
|
≤34.0 |
|
INCONEL 800 |
≤0.10 |
≤1.00 |
≤1.50 |
- |
≤0.015 |
≤23.0 |
≤35 |
4.0~5.0 |
- |
≤0.75 |
Ti≤0.6 Al≤0.6 |
Produce procedure
Application
- Architectural/Civil Engineering: Cladding, handrails, door and window fittings, street furniture, structural sections, enforcement bar, lighting columns, lintels, masonry supports.
- Transport: Exhaust systems, car trim/grilles, road tankers, ship containers, ships chemical tankers, refuse vehicles.
- Chemical/Pharmaceutical: Pressure vessels, process piping.
- Oil and gas: Platform accommodation, cable trays, sub-sea pipelines.
- Medical: Surgical instruments, surgical implants, food processing.
- Food and Drink: Catering equipment, brewing, distilling, food processing.
- Water: Water and sewage treatment, water tubing, hot water tanks.
- General: Springs, fasteners(bolts, nuts and washers) wire