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Product Specification
鋼鐵S110
鋼鐵S170
鋼鐵S230
鋼鐵S280
鋼鐵S330
鋼鐵S390
鋼鐵S460
鋼射S550
鋼丸S660
鋼丸S780
鋼丸尺寸分佈圖
項目
國家標準鋼鐵
我司優質鋼材
化學成分
C
0.85-1.20
0.85-1.0
矽
0.40-1.20
0.70-1.0
錳
0.60-1.20
0.75-1.0
其他
<0.05
<0.030
P
<0.05
<0.030
硬度
HRC40-50
HRC43-46
密度
≧7.20g / cm 3
7.4g / cm 3
顯微鏡
淬火馬氏體或屈氏體
鍛造馬氏體和貝氏體
外觀
球形
空心顆粒<10%
裂紋<15%
球形
空心微粒<5%
裂紋<10%
畫面號
在
屏幕尺寸
SAE J444鋼射擊
S930
S780
S660
S550
S460
S390
S330
S280
S230
S170
S110
S70
6
0.132
3.35
全部通過
7
0.111
2.80
全部通過
8
0.0937
2.36
≧90%
全部通過
10
0.0787
2.00
≧97%
≧85%
全部通過
全部通過
12
0.0661
1.70
≧97%
≧85%
≦5%
14
0.0555
1.40
≧97%
≧85%
全部通過
16
0.0469
1.18
≧97%
≧85%
≦5%
全部通過
18
0.0394
1.00
≧96%
≦5%
全部通過
20
0.0331
0.850
≧85%
≦5%
全部通過
25
0.0280
0.710
≧96%
≧85%
≦5%
全部通過
三十
0.0232
0.600
≧96%
≧85%
≦10%
35
0.0197
0.500
≧96%
≧85%
全部通過
40
0.0165
0.425
≧97%
≦10%
45
0.0138
0.355
≧85%
全部通過
50
0.0117
0.300
≧97%
≦10%
80
0.007
0.180
≧80%
120
0.0049
0.125
≧90%
≧80%
200
0.0029
0.075
≧90%
GB
2.8
2.5
2.0
1.7
1.4
1.2
1.0
0.8
0.6
0.4
0.3
0.2
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