ISO 683-2 Grade 39MnB5
ISO 683-2 Grade 39MnB5 introduction
Quenchable boron steel represent a breakthrough in heat treatment technology. This steel uses boron as a hardening agent. The melting and refining process, together with thermomechanical treatment by controlled hot rolling, allow ArcelorMittal quenchable boron steel to attain a remarkable degree of hardness and a very uniform microstructure, resulting in excellent mechanical loading performance after heat treatment of the finished part.
Equivalent material: EN 38MnB5
ISO 683-2 Grade 39MnB5 chemical
| Property | Value | Comment |
|---|---|---|
| Boron | Boron of 0.0008 - 0.005 % | - |
| Carbon | Carbon of 0.36 - 0.42 % | - |
| Manganese | Manganese of 1.15 - 1.45 % | - |
| Phosphorus | Phosphorus of 0.025 % | max. |
| Silicon | Silicon of 0.4 % | max. |
| Sulfur | Sulfur of 0.035 % | max. |
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