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409 Stainless Steel｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）
The lowest-chromium practical ferritic stainless, lowest cost, with basic oxidation resistance and formability but only average corrosion and strength.
409不锈钢
FerriticThe lowest-chromium practical ferritic stainless, lowest cost, with basic oxidation resistance and formability but only average corrosion and strength.
Standards
| GB (China) | 06Cr11Ti（旧0Cr11Ti） |
|---|---|
| EN (Europe) | 1.4512 / X2CrTi12（近似） |
| ASTM/UNS (USA) | 409 / UNS S40900 |
| JIS (Japan) | SUS409 |
Chemical composition (wt%)
| Chemical composition (wt%) | % |
|---|---|
C | ≤0.08 |
Si | ≤1.00 |
Mn | ≤1.00 |
Cr | 10.5–11.75 |
Ti | 6×C–0.75 |
Density：7.75 g/cm³
Performance
The lowest-chromium practical ferritic stainless, lowest cost, with basic oxidation resistance and formability but only average corrosion and strength.
Use cases
Automotive exhaust systems, mufflers, catalyst housings, low-cost lightly-heat-resistant structures.
Characteristics
Titanium-stabilized, good welding and formability, cheap; but weak atmospheric/acid resistance and prone to oxidation discoloration.
Pitfalls & cautions
Related grades
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