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Standard Specification for High Strength Abrasive Resistant Steel Plate For Engineering Machinery
1. Scope
This general specification apply to users purchasing High strength abrasive resistant steel plate ranged NM300~NM600.
2. Dimension, Shape, Weight and Allowed tolerance
2.1 Dimension, shape and tolerance will conform to GB/T709 Specification.
2.2 Steel plate delivered by theoretical weight, density calculated by 7.85kg/dm3
|
Steel Mark |
Thickness (mm) |
Tensile strength (Mpa) |
Elongation |
-20°CImpact energy Akv J |
Brinell Hardness HBW |
|
NM300 |
6~80 |
≥ 1000 |
≥14 |
≥24 |
270~330 |
|
NM360 |
6~80 |
≥1100 |
≥12 |
≥24 |
330~390 |
|
NM400 |
6~80 |
≥1200 |
≥10 |
≥24 |
370~430 |
|
NM450 |
6~80 |
≥1250 |
≥7 |
≥24 |
420~480 |
|
NM500 |
6~80 |
_ |
_ |
_ |
≥470 |
|
NM550 |
6~80 |
_ |
_ |
_ |
≥530 |
|
NM600 |
6~80 |
_ |
_ |
_ |
≥570 |
