直径A Diameter	原棒尺寸 Fullsize Round Bar	直径尺寸公差 Tolerance for Diameter	制造方法 Method of Manufacturing	每米重量 Weight Per Meter(KG)
10	4010	-0.036~0	冷拔处理Cold Drawing	0.632
12	4010	-0.043~0	冷拔处理Cold Drawing	0.897
14	4010	-0.043~0	冷拔处理Cold Drawing	1.221
15	4010	-0.043~0	冷拔处理Cold Drawing	1.402
16	4010	-0.043~0	冷拔处理Cold Drawing	1.595
18	4010	-0.043~0	冷拔处理Cold Drawing	2.018
20	4010	-0.052~0	冷拔处理Cold Drawing	2.492
22	4010	-0.052~0	冷拔处理Cold Drawing	3.015
30	5510	-0.052~0	无心研磨Centerless Grinding	5.606

数据（参考值）Data

特性 Mechanical Properties
比重Specific Density	热传导度Thermal  Conduction Degree	纤细膨胀系数 SLinear Expansion Coefficient
7.93	16.3	17.3

化学成分（%）Chemical Composition（%）
C	Si	Mn	P	S	Ni	Cr	Mo	Cu	Fe	其他Miscellaneous
0.15以下Below	1以下Below	2以下Below	0.2以下Below	0.15以上Over	8~10	17~19	能添加Mo0.6%以下 Addable Below 0.6%	—	剩余Residual	—

概述 Summarization
拉拔表面是尺寸公差=H9的一种冷轧工艺。而无心研磨的尺寸公差=H7.
Cold Drawing is size tolerance =H9, Cold Rolled and drawed. By way of parenthsis ,Coreless is size tolerance =H7.
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.