439L 409L Thin Wall 6m Stainless Steel Exhaust Pipe
Stainless Steel 439L 409L Exhaust Pipe Thin Wall Stainless Steel Tube
439 stainless steel tube is a ferritic stainless steel that outperforms Type 409 and Type 436 in both oxidation resistance and corrosion resistance. Special attention to chemical composition combined with special processing give 409 stainless steel tube optimum formability that is reproducible, coil after coil, and heat after heat. This provides special advantages when producing difficult-to-form exhaust systems components. Oxidation and corrosion resistance that is superior to Type 409 makes 439 stainless steel tube attractive for numerous automotive exhaust applications.
Typical uses include tubular manifolds and other exhaust system components where temperatures may exceed the oxidation limit of Type 409 and Type 436, or where wet corrosion resistance, particularly to chlorides, is needed.
1.chemical composition
| Country | Standard | Grade | (%)Chemical Composition | ≤ |
|||||||
| C | Si | Mn | P | S | Cr | Ni | N | Ti | |||
| USA | ASTM | 439 | 0.03 | 1.00 | 1.00 | 0.04 | 0.03 |
17.0- 19.0 |
≤ 0.5 |
≤ 0.04 |
0.2+4(C+N)－1.10 |
| Ger | DIN | 1.4510 | 0.05 | 1.00 | 0.00 | 0.04 | 0.015 | 16.0-18.0 | - | - | 4(C+N)－0.80 |
2. Mechanical Property
| Standard | Mechanical Property | |||
|
Tensile Strength |
Yield Strength | Elongation(%) | Hardness | |
| N/m㎡ | (≤)N/m㎡ | (≥)% | (≤)HV | |
| ASTM | ≥415 | 205 | 22 | 180 |
Detection method:
The company has a complete testing method (squashed, curved, expanding test, mechanical performance test) to ensure the production of 439L stainless steel pipe to meet the national standard.
Stainless Steel Welded Tube Pictures
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