序号 |
统一数字代号 |
牌号 |
化学成分,% |
|||||
C |
Si |
Mn |
Cr |
Ni |
Cu |
|||
不大于 |
||||||||
1 |
U20080 |
08F |
0.05~0.11 |
≤0.03 |
0.25~0.50 |
0.10 |
0.30 |
0.25 |
2 |
U20100 |
10F |
0.07~0.13 |
≤0.07 |
0.25~0.50 |
0.15 |
0.30 |
0.25 |
3 |
U20150 |
15F |
0.12~0.18 |
≤0.07 |
0.25~0.50 |
0.25 |
0.30 |
0.25 |
4 |
U20082 |
08 |
0.05~0.11 |
0.17~0.37 |
0.35~0.65 |
0.10 |
0.30 |
0.25 |
5 |
U20102 |
10 |
0.07~0.13 |
0.17~0.37 |
0.35~0.65 |
0.15 |
0.30 |
0.25 |
6 |
U20152 |
15 |
0.12~0.18 |
0.17~0.37 |
0.35~0.65 |
0.25 |
0.30 |
0.25 |
7 |
U20202 |
20 |
0.17~0.23 |
0.17~0.37 |
0.35~0.65 |
0.25 |
0.30 |
0.25 |
8 |
U20252 |
25 |
0.22~0.29 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
9 |
U20302 |
30 |
0.27~0.34 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
10 |
U20352 |
35 |
0.32~0.39 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
11 |
U20402 |
40 |
0.37~0.44 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
12 |
U20452 |
45 |
0.42~0.50 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
13 |
U20502 |
50 |
0.47~0.55 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
14 |
U20552 |
55 |
0.52~0.60 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
15 |
U20602 |
60 |
0.57~0.65 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
16 |
U20652 |
65 |
0.62~0.70 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
17 |
U20702 |
70 |
0.67~0.75 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
18 |
U20752 |
75 |
0.72~0.80 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
19 |
U20802 |
80 |
0.77~0.85 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
20 |
U20852 |
85 |
0.82~0.90 |
0.17~0.37 |
0.50~0.80 |
0.25 |
0.30 |
0.25 |
21 |
U21152 |
15Mn |
0.12~0.18 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
22 |
U21202 |
20Mn |
0.17~0.23 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
23 |
U21252 |
25Mn |
0.22~0.29 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
24 |
U21302 |
30Mn |
0.27~0.34 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
25 |
U21352 |
35Mn |
0.32~0.39 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
26 |
U21402 |
40Mn |
0.37~0.44 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
27 |
U21452 |
45Mn |
0.42~0.50 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
28 |
U21502 |
50Mn |
0.48~0.56 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
29 |
U21602 |
60Mn |
0.57~0.65 |
0.17~0.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
30 |
U21652 |
65Mn |
0.62~0.70 |
0.17~0.37 |
0.90~1.20 |
0.25 |
0.30 |
0.25 |
31 |
U21702 |
70Mn |
0.67~0.75 |
0.17~0.37 |
0.90~1.20 |
0.25 |
0.30 |
0.25 |
注:表1所列牌号为优质钢。如果是高级优质钢,在牌号后面加“A”(统一数字代号最后一位数字改为“3”);如果是特级优质钢,在牌号后面加“E”(统一数字代号最后一位数字改为“6”);对于沸腾钢,牌号后面为“F” (统一数字代号最后一位数字为“0”);对于半镇静钢,牌号后面为“b” (统一数字代号最后一位数字为“1”) |
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