直径A Dianeter	原棒尺寸 Full size Round Bar	直径尺寸公差 Tolerance for Diameter	表面 Surface	制造方法 Method of Manufacturing
25	4000	-0.30~+0.70	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
28	4000	-0.32~+0.80	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
32	4000	-0.32~+0.80	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
36	4000	-0.30~+0.70	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
38	4000	-0.42~+1.05	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
42	4000	-0.42~+1.25	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
46	4000	-0.50~+1.25	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
48	4000	-0.50~+1.25	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
50	4000	-0.50~+1.25	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
55	4000	-0.60~+1.50	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
60	4000	-0.60~+1.50	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
65	4000	-0.70~+1.75	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
70	4000	-0.70~+1.75	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
75	4000	-0.80~+2.00	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
80	4000	-0.80~+2.00	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
85	4000	-0.80~+2.125	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
90	4000	-0.90~+2.25	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
95	4000	-0.95~+2.375	黑皮或切断面 Cut off Face with Black Appearance	热轧Hot Rolling
100	4000	-1.00~+2.50	外周车削 Spin Lather	热轧Hot Rolling
112	4000	0~+2.0	外周车削 Spin Lather	锻造 Forge
122	4000	0~+2.0	外周车削 Spin Lather	锻造 Forge
132	4000	0~+2.0	外周车削 Spin Lather	锻造 Forge
142	4000	0~+2.0	外周车削 Spin Lather	锻造 Forge
152	4000	0~+2.0	外周车削 Spin Lather	锻造 Forge
182	4000	0~+2.0	外周车削 Spin Lather	锻造 Forge

概述 Summarization
是日本高周波钢业（株式会社）的高级塑料模具用钢，其机械加工性，放电加工性，焊接性优异，是硬度为40HRC的预硬钢。
KAP88 is high grade steel of Nippon Koshuha Steel for resin mould, and being pre-hardened 40HRC with excellent machine-ability, electric discharged and welding-ability.