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NM400 is an abrasion resistant plate with a hardness of 400 HBW, intended for applications where demands are imposed on abrasion resistance in combination with good cold bending properties. NM400 offers very good weldability.
Supplementary Technology: Brinell hardness, HBW according to EN ISO 6506-1, on a milled surface 0,5–2 mm below plate surface per heat and 40 tons. Tests are made for every variation of 15 mm in the thickness of plates from the same heat.
Chemical Composition of NM400
GRADE | C | Si | Mn | P | S | Cr | Mo | Ni | B |
NM400 | ≤0.25 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.4 | ≤0.50 | ≤1.00 | ≤0.004 |
Mechanical Property of NM400
Brand | Thickness mm | Tensile Test MPa | Hardness | ||
YS Rel MPa | TS Rm MPa | Elongation % | |||
| NM400 | 10-50 | ≥620 | 725-900 | ≥16 | 380-460 |
Processing Technique
Electric Furnace Steelmaking
LF Refining
VD Vacuum Treatment
Continuous casting and rolling
Accelerated Cooling
Thermal Treatment
Ware-house-in Inspection