Durabor® 30MnB5

Durabor® 30MnB5

Durabor® 30MnB5 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 30MnB5, AFNOR 30MnB5RR, DIN 28B2, JIS 15B30, UNS H15301

Durabor® 30MnB5 chemical

Property Value Comment
Aluminium Aluminium of 0.02 % min.
Boron Boron of 0.001 - 0.004 % -
Carbon Carbon of 0.27 - 0.33 % -
Manganese Manganese of 1.15 - 1.45 % -
Phosphorus Phosphorus of 0.025 % max.
Silicon Silicon of 0.2 - 0.3 % -
Sulfur Sulfur of 0.004 % max.
Titanium Titanium of 0.02 - 0.05 % -

Durabor® 30MnB5 electrical

Property - -
Application areas
Chemical composition
Delivery condtion
Heat Treatment
Other
Processing methods
Surface condition

Durabor® 30MnB5 mechanical

Property Value Comment
Elongation Elongation of 8 % Quenched | 6 mm specimen in the rolling direction
- Elongation of 25 % Delivery condition | 6 mm specimen in the rolling direction
Hardness, Rockwell C Hardness, Rockwell C of 50 [-] Quenched | 6 mm specimen in the rolling direction
Tensile strength Tensile strength of 660 MPa Delivery condition | 6 mm specimen in the rolling direction
- Tensile strength of 1700 MPa Quenched | 6 mm specimen in the rolling direction
Yield strength Yield strength of 440 MPa Delivery condition | 6 mm specimen in the rolling direction
- Yield strength of 1200 MPa Quenched | 6 mm specimen in the rolling direction

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