General Characteristics
EN 1.4376 has higher strength than standard 304/1.4301 and a lower nickel content, making it a cost-effective and lightweight austenitic product for the automotive industry. It has been used in automotive applications for over 10 years.
EN 1.4376 is an austenitic stainless steel, which belongs to the austenitic low-nickel CrMn stainless steel family, in which manganese replaces part of the nickel that is normally alloyed to CrNi standard grades. This variant has low carbon content. Due to its high nitrogen content, EN 1.4376 has increased mechanical strength. EN 1.4376 is optimized for strong work hardening on mechanical deformation.
The corrosion resistance of the austenitic CrMn grades is usually slightly below that of the austenitic CrNi standard grades. EN 1.4376 is used in applications where a combination of high mechanical strength and good formability, as well as corrosion resistance, is needed. Due to its strong tendency to work hardening, EN 1.4376 can absorb a high amount of energy during deformation. It can be delivered in the temper rolled condition with different strength levels.
Typical Applications
Cross members
Strut domes
Bumpers
Chemical Composition
The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.
The chemical composition is given as % by mass.
| C | Mn | Cr | Ni | N | |
Typical | 0.04 | 6.8 | 17.5 | 4.0 | 0.20 |
EN 10088-2 | ≤0.10 | 5.0-8.0 | 17.0-20.5 | 2.0-4.5 | ≤0.30 |
Mechanical Properties
| Standard | Rp0.2 | Rp1.0 | Rm | Elongation | HB |
MPa | MPa | MPa | % | ||
Product type: Cold rolled coil and sheet | |||||
Typical (thickness 1 mm) | 405 | 455 | 740 | ||
EN 10088-2 | ≥ 400 | ≥ 420 | 600-900 | ≥ 40 | |
Product type: Hot rolled coil and sheet | |||||
Typical (thickness 4 mm) | 410 | 460 | 715 | 57 | 86 |
EN 10088-2 | ≥ 400 | ≥ 420 | 600-900 | ≥ 40 | |
Physical Properties
| Density | Modulus of elasticity | Thermal exp. at 100 °C | Thermal conductivity | Thermal capacity | Electrical resistance | Magnetizable |
kg/dm3 | GPa | 10-6/°C | W/m°C | J/kg°C | µΩm | |
7,9 | 200 | 16,0 | 15 | 500 | 0,73 | No |
