nm300 AR Abrasion Resistant Steel (300 Brinell)
1.High Strength Low Alloy Steel
Abrasion Resistant Steel
nm300 AR | nm400 AR | nm450 AR | nm500 AR
2.nm300 AR – Masteel’s designation for 300 brinell hardness abrasion resistant steel. nm300 AR is Masteel’s designation for 300 brinell hardness abrasion resistant steel.
3.The material is a martensitic hardenable steel grade which has excellent strength and hardness characteristics making it resistant to the effects of abrasion and also increased surface pressure.
4.The steel has a brinell hardness range of 270-390 HBW and has good weldability using conventional welding methods. Heat treatment is not recommended as the process will reduce the hardness, strength and abrasion resistance of the material.
5.Typical Applications
Mining machinery
Earth moving machinery
Platform structures
Feeders, hoppers and funnels
6.We can supply MAS300 AR in cut lengths of between 2.5 and 80mm and we can ship to any destination worldwide from our UK steel warehouse. Please refer to chemical composition and mechanical properties for MAS300 AR abrasion resistant steel below.
Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | B |
| nm300 AR | 0.18 | 0.7 | 1.70 | 0.025 | 0.015 | 1.50 | 0.40 | 0.5 | 0.005 |
Content % max unless otherwise stated. Aluminium and can titanium additionally used as a micro-alloy material.
Mechanical Properties
| Grade | Yield Strength MPa |
Tensile Strength MPa |
Elongation A |
Impact Strength Charpy V 20 J |
| nm300 AR | 900 | 1000 | 11 | -40°C |
Typical values based on 8mm plate thickness
(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)
7.For information about nm300 AR abrasion resistant steel or to receive a competitive and detailed quotation please contact us.