板厚A Plate Thickness	原板尺寸 Full size Plate	板厚公差 Tolerance for Plate Thickness	调质Hardening And Tempering	制造方法 Method of Manufacturing
10	400×1220	0~+1.0	—	热轧后退火  Annearling  after Hot  Rolling
13	400×1220	0~+1.0	—	热轧后退火  Annearling  after Hot  Rolling
15	400×1220	0~+1.0	—	热轧后退火  Annearling  after Hot  Rolling
18	500×800	0~+2.0	—	热轧后退火  Annearling  after Hot  Rolling
20	500×1000	0~+2.0	—	热轧后退火  Annearling  after Hot  Rolling
23	500×1000	0~+2.0	—	热轧后退火  Annearling  after Hot  Rolling
40	500×1000	0~+2.0	—	热轧后退火  Annearling  after Hot  Rolling

数据（参考值）Data

特性 Mechanical Properties
布氏硬度 Rockwell  Hardness	比重Specific Density	热传导度 Hot  Conduction Degree	纤细膨胀系数 Linear Expansion Coefficient
269以上	7.7	24.2	10.2

化学成分（%）Chemical Composition（%）
C	Si	Mn	P	S	Ni	Cr	Mo	Cu	Fe	其他Miscellaneous
0.95~1.2	1.2以下Below	1以下Below	0.04以下Below	0.03以下Below	0.6%以下Below	16~18	可添加0.75%以下Addable Below 0.6%	__	剩余Residual	—

概述 Summarization
属于马氏体系的不锈钢，在所有不锈钢，耐热钢中具有最高的硬度（能达到HRC58以上），市场上除白铜公司外几乎没有厚板形状的材料库存。多用于有耐腐蚀性和硬度要求的模具等部件。
440Cis a Part of Martensitic stainless steel serial , among all stainless steel and heat-resisting ateel range 440C is the hardest one . (reach over HRC58) . Except HAKUDO company there is almost no 440C serial thicker plate stock on the market . With its excellent corrosion resistance and hardness This product is mainly used in mould and machinery parts.
进货商品（尺寸）信息Information for Purchase of Goods（Size）
以下尺寸也能从日本进货 The goods in the following sizes may also be purchased from Japan.
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