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冷镦钢线材： |
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钢号 |
化学成分 |
成分 |
C |
Si |
Mn |
P |
S |
Al |
Cr |
Mo |
B |
SWRCH6A |
≤0.08 |
≤0.10 |
≤0.60 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH8A |
≤0.10 |
≤0.10 |
≤0.60 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH10A |
0.08~0.13 |
≤0.10 |
0.30~0.60 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH15A |
0.13~0.18 |
≤0.10 |
0.30~0.60 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH18A |
0.15~0.20 |
≤0.10 |
0.60~0.90 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH20A |
0.18~0.23 |
≤0.10 |
0.30~0.60 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH22A |
0.18~0.23 |
≤0.10 |
0.70~1.00 |
≤0.030 |
≤0.035 |
≥0.02 |
|
|
|
SWRCH35K |
0.32~0.38 |
0.10~0.35 |
0.60~0.90 |
≤0.030 |
≤0.035 |
|
|
|
|
SWRCH45K |
0.42~0.48 |
0.10~0.35 |
0.60~0.90 |
≤0.030 |
≤0.035 |
|
|
|
|
ML35 |
0.32~0.39 |
≤0.20 |
0.30~0.60 |
≤0.035 |
≤0.035 |
|
|
|
|
ML08AL |
0.05~0.10 |
≤0.10 |
0.30~0.60 |
≤0.035 |
≤0.035 |
≥0.02 |
|
|
|
SCM435 |
0.33~0.38 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
|
0.90~1.20 |
0.15~0.30 |
|
SCM440 |
0.38~0.43 |
0.15~0.35 |
0.60~0.85 |
≤0.030 |
≤0.030 |
|
0.90~1.20 |
0.15~0.30 |
|
ML40Cr |
0.38~0.45 |
≤0.30 |
0.60~0.90 |
≤0.035 |
≤0.035 |
|
0.90~1.20 |
|
|
ML35CrMo |
0.32~0.40 |
≤0.30 |
0.60~0.90 |
≤0.035 |
≤0.035 |
|
0.80~1.10 |
0.15~0.25 |
|
10B21 |
0.18~0.23 |
≤0.10 |
0.70~1.00 |
≤0.030 |
≤0.035 |
|
|
|
≥0.0005 |
10B33 |
0.32~0.36 |
0.15~0.35 |
0.70~1.00 |
≤0.030 |
≤0.035 |
|
|
|
≥0.0005 |
ML20MnTiB |
0.19~0.24 |
≤0.30 |
1.30~1.60 |
≤0.035 |
≤0.035 |
≥0.02 |
Ti：
0.04~0.10 |
|
0.0005~0.0035 |
|
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脱碳层标准： |
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规格范围 |
碳素钢 |
合金钢 |
全脱碳DMF |
总脱碳DMT |
全脱碳DMF |
总脱碳DMT |
≤∮15mm |
≤0.02 |
≤0.15 |
≤0.02 |
≤0.15 |
＞∮15~∮25mm |
≤0.03 |
≤0.20 |
≤0.03 |
≤0.20 |
＞∮25~∮32mm |
≤0.04 |
≤0.25 |
≤0.04 |
≤0.25 |
|
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球化精线(SAIP/PASAIP)品质标准： |
| |
...机械性质
材质 |
抗拉强度
Kgf/mm |
伸长率
% |
断面收缩率
% |
硬度
HRB |
球化率
% |
冷顶锻 |
SWCH6A |
31~42 |
≥10 |
— |
— |
≥80 |
1/3合格 |
SWCH10A |
33~44 |
≥10 |
— |
— |
≥80 |
1/3合格 |
SWCH15A |
36~46 |
≥10 |
— |
— |
≥80 |
1/3合格 |
SWCH18A |
42~52 |
≥10 |
— |
— |
≥80 |
1/3合格 |
SWCH22A |
42~52 |
≥10 |
— |
— |
≥80 |
1/3合格 |
10B21 |
43~52 |
≥10 |
≥65 |
≤81 |
≥80 |
1/3合格 |
10B33 |
46~56 |
≥10 |
≥60 |
≤86 |
≥80 |
1/3合格 |
SCM435 |
51~59 |
≥10 |
≥60 |
≤89 |
≥80 |
1/3合格 |
SCM440 |
52~60 |
≥10 |
≥60 |
≤90 |
≥80 |
1/3合格 |
SWCH35K |
47~56 |
≥10 |
≥60 |
≤86 |
≥80 |
1/3合格 |
SWCH38K |
49~57 |
≥10 |
≥60 |
≤86 |
≥80 |
1/3合格 |
SWCH45K |
51~58 |
≥10 |
≥60 |
≤88 |
≥80 |
1/3合格 |
ML40Cr |
51~61 |
≥10 |
≥60 |
≤91 |
≥80 |
1/3合格 |
|
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球化母线(SAF)品质标准： |
| |
....机械性质
材质 |
抗拉强度
Kgf/mm |
伸长率
% |
断面收缩率
% |
硬度
HRB |
球化率
% |
冷顶锻 |
SWCH6A |
30~38 |
≥20 |
— |
— |
≥80 |
— |
SWCH10A |
31~41 |
≥20 |
— |
— |
≥80 |
— |
SWCH15A |
34~43 |
≥20 |
— |
— |
≥80 |
— |
SWCH18A |
35~45 |
≥20 |
— |
— |
≥80 |
— |
SWCH22A |
36~46 |
≥20 |
— |
— |
≥80 |
— |
10B21 |
40~48 |
≥18 |
|
≤77 |
≥80 |
— |
SCM435 |
48~54 |
≥15 |
|
≤80 |
≥80 |
— |
SCM440 |
50~55 |
≥14 |
|
≤85 |
≥80 |
— |
SWCH35K |
42~51 |
≥15 |
|
≤78 |
≥80 |
— |
SWCH38K |
45~53 |
≥15 |
|
≤78 |
≥80 |
— |
SWCH45K |
47~55 |
≥15 |
|
≤82 |
≥80 |
— |
ML40Cr |
48~54 |
≥15 |
|
≤80 |
≥80 |
— |
|
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直抽线(HD)品质标准: |
| |
...机械性质
材质 |
抗拉强度
Kgf/mm |
伸长率
% |
断面收缩率
% |
硬度
HRB |
球化率
% |
冷顶锻 |
SWCH6A |
≤65 |
— |
— |
— |
— |
— |
SWCH10A |
≤65 |
— |
— |
— |
— |
— |
SWCH15A |
≤65 |
— |
— |
— |
— |
— |
SWCH18A |
≤65 |
— |
— |
— |
— |
— |
|
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线材包装： |
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制程 |
线径mm |
卷重kg |
内径mm |
盘卷方向 |
图示 |
SAF
|
2.00~5.80 |
500以下 |
390~470 |
1 |
 1-顺时针出线方向
 2-逆时针出线方向
|
5.81~14.00 |
1000以下 |
900~1150 |
1/2 |
14.01~32.00 |
1000以下 |
900~1150 |
1 |
SAIP |
2.00~5.80 |
500以下 |
450~500 |
1 |
5.81~12.00 |
1000以下 |
800~950 |
1/2 |
12.01~16.00 |
1000以下 |
800~1000 |
1/2 |
16.01~32.00 |
1000~2000 |
1000~1200 |
1 |
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