Outokumpu 1.4512
Type 12Cr-Ti stainless steel: EN 1.4512, AISI 409
Applications
- Automotive exhaust system parts: mufflers, pipes, catalytic converters, support parts.
- Constructional structures used in elevated temperatures.
Welding
- Conventional welding methods and filler materials applied to austenitic 300-series can be used.
- Titanium stabilized to be resistant against sensitization in Heat Affected Zone (HAZ).
- Shielding gases should be based on Ar/He, mixed with some oxygen to improve arc stability. Hydrogen and nitrogen must not be used.
- Heat input in welding should been kept in a minimum level.
Fabrication
- Grade 1.4512 can be formed using typical forming processes like folding, bending, drawing, etc.
- It has higher minimum proof strength than standard austenitic stainless steel grade 1.4301 / AISI 304 in combination with lower work hardening behavior.
- Due to the stabilization, the r-value is higher compared to the non-stabilized ferritic stainless steel such as 1.4016.
- These characteristics mean excellent deep-drawability and other forming related properties.
Corrosion resistance
- Outokumpu produces grade 1.4512 with a typical chromium content of 11,5 wt-% .
- Good corrosion resistance in moderate corrosive environment
- Grade 1.4512 is not susceptible to chloride induced stress corrosion cracking.
- The best material performance is reached usually with the help of adequate design, correct post-weld treatment and regular cleaning during use (if applicable).
Propiedades generales
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Technical Datasheet (English)
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