Stainless Steel AISI 409 | 1.4512
Data sheet
DIN EN 10088
Grade AISI 409
Material 1.4512 / AISI 409 is a rust-resistant ferritic chromium steel. Due to its titanium content, the material is more resistant to corrosion than the ferritic steel 1.4003, but the corrosion resistance is lower than in austenitic stainless steels. Compared to these, however, stainless steel 1.4512 / AISI 409 has a better resistance to stress corrosion cracking. The material is suitable for cold forming and is used, among other industries, in the automotive industry or in mechanical engineering.
Specification
EN material number: 1.4512
EN abbreviation: X2CrTi12
EN standard: 10088
Microstructure class: Ferrite
Comparable standards and designations
AFNOR Z3CT12 *
AISI 409 *
B.S. 409S19 *
JIS SUH409L *
SAE 409 *
UNS S40900 *
(* in accordance with)
Chemical composition of stainless steel 1.4512
C | Si | Mn | P | S | N | Cr | Cu | Mo | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
≤ 0,030 | ≤ 1,00 | ≤ 1,00 | ≤ 0,045 | ≤ 0,030 | - | 10,5 -12,5 | - | - | - | [6 × (C + N)] - 0,65 [◊] |
[◊] Stabilisation can be achieved by using titanium, niobium and/or zirconium.
According to the atomic mass and the proportion of carbon + nitrogen, the following applies: Nb (mass proportion in %) = Zr (mass proportion in %) = 7/4 Ti (mass proportion in %).
Mass fraction in % according to DIN EN 10088
Physical properties
Magnetisability: present
Density(kg/dm³): 7.7
Thermal conductivity (at up to 20°C): 25
Electronic resistance at room temperature (in Ω mm²/m): 0.60
Possible areas of application
Plant engineering
Automotive industry
Construction industry
Fastening elements
Household appliance manufacturing
Mechanical engineering
and more
Heat treatment and hot forming
Hot forming (cooling by air): 800-1100 °C
Annealing (cooling by air and water): 770 - 830 °C
Welding
Material 1.4512 / AISI 409 has poor welding properties. In particular the high temperature range the material is sensitive to embrittlement due to grain growth. The harmful influences can be better controlled when working in the low range, with a welding energy lower than 1kJ/mm. Due to the addition of titanium, hydrogen or nitrogen containing gas should be avoided.
Please note
The information given in this data sheet has been compiled to the best of our knowledge and is based on the current version of the relevant standard. It is considered for reference only and we assume no liability for any errors.
Link to stainless steel wire
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