AISI 409 DIN 1.4512 JIS SUH409L Hot Rolled Stainless Steel Round Bars
Type 409 Stainless Steel (UNS S40900) is a stabilized ferritic stainless steel that provides improved
oxidation and corrosion resistance compared to carbon steel.
Ease of fabrication combined with its corrosion resistance and economy have significantly broadened
its utilization in automotive exhaust and other non-automotive applications.
ASTM A240 defines three (3) sub categories of Type 409 stainless steel;
UNS S40910, UNS S40920 and UNS S40930.
Each of these designations has a slightly different Ti or Nb stabilization requirement.
Each of these compositions can be supplied as UNS S40900 unless the purchaser specifically
identifies a specific composition.
It is produced with enhanced formability characteristics known as “High Performance” or “Ultra Form” in the industry.
Grade designation
| AISI | UNS | EN | DIN | JIS |
| 409 | S40900 | 1.4512 | X2CrTi12 | SUH409L |
Chemical composition % weight
| Grade | C | Si | Mn | P | S | Cr | Ni | N | Ti |
| S40900 | 0.03 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 10.50~11.70 | 0.50 max | 0.030 max | 8X(C+N), min 0.15, max.0.50 |
Typical Applications
Automotive exhaust systems applications such as manifolds exhaust pipes, catalytic converters,
mufflers, tail pipes and other components. Non-automotive exhaust applications such as home heating systems,
automotive thermostats and fuel filters, electrical transformer cases, caskets and heat exchanger tubing.
Product forms
AISI 409, EN 1.4512, DIN X2CrTi12, JIS SUH409L stainless steel round bars, hot rolled, annealed
For Details, please Contact
WUXI GUANGLU Special Steel Co., Ltd.
Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com
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