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NM450 resisting steel sheet 12mm

Executive standard:GB/AS PER request
Thickness:3-150mm
Delivery Status:Q+T
HS code:72254099
Product description：Resisting steel sheet NM450 hardness HBW ≥420 ,with excellent mechanical propert and weldding property .Tenible strength ≥1250MPa ,Yield strength ≥7%.
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《Engineering Machinery with High Strength Wear Resistant Steel Plates 》 ——NM450

NM450 Wear resisting steel adopt the first Word Pinyin NaiMo and its HBW value to name the grade; 450——Show the average brinell hardness of steel plate

一、NM450 belong to low alloy wear resistant steel

二、Named：NM450

三、NM450 its average HBW is 450

（International Stipulation Range of HBW：420～480）

四、The Delivery Status NM450：Qunched and Tempered

五、Steel Plate size, Shape, Weight and allowable Deviation: should comply with the provisions of GB/T709.

六、Steel Surface Quality：conform to GB/T 3274

七、The provisions of this standard and acceptance inspection items of the reinspection rules shall comply with the provisions of GB/T 17505.

八、Rolled Range：3-80mm（Other thickness two sides negotiate）

九、Chemical and Mechamical Property：as following Table

NM450 Chemical Property

GRADE

Chemical Property（Quality Percent）/%

Bta

AIs

CEV

≤

≥

≤

NM450

0.35

0.70

1.70

0.025

0.010

1.10

0.80

0.55

0.050

0.0005~0.006

0.010

0.6

a Bt stands for Boron content。

NM450 Mechamical Property

GRADE

THICK

TENSIBLE STRENGTH

Rm MP a

YIELD STRENGTH

A₅₀%

—20℃ IMPACT TEST

AKv / J

HBW

NM450

3~80

≥1250

≥7

≥24

420~480

Tensile strength, elongation and impact energy as the special requirements of performance, such as customer did not indicate in the contract, the only guarantee the brinell hardness.

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