MAS450 AR Abrasion Resistant Steel (450 Brinell)

Used throughout the mining and earthmoving industry, MAS450 AR is Masteel’s designation for abrasion resistant steel with 450 brinell hardness.
The steel is a martensitic hardenable material with excellent high strength and hardness properties making it an ideal choice for heavy wear environments. Whilst the material cannot be heat treated, it is easy to cut and weld and has good formability.
The material is referred to as a 450 brinell hardness steel – the actual hardness range values for this grade relating to thickness are listed below:

GradeProductThicknessHardness Range
MAS450 ARCut Lengths3.0 - 6.4420 - 500
MAS450 ARHeavy Plates6 - 60420 - 500

Mechanical Properties of MAS450 AR

GradeYield Strength MPaTensile Strength MPaElongation AImpact Strength Charpy V 20J
MAS450 AR120014508-40 C

Chemical Composition of MAS450 AR

 %
C0.26
Si0.7
Mn1.70
P0.025
S0.015
Cr1.00
Ni0.70
Mo0.50
B0.005