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優(yōu)質碳素結構鋼(GB/T699—1999)
序號 |
統(tǒng)一數(shù)字
代號 |
牌號 |
化學成分(質量分數(shù))(%) | |||||
C |
Si |
Mn |
Cr |
M |
Cu | |||
≤ | ||||||||
1 |
U20080 |
08F |
O.05~O.11 |
≤0.03 |
0.25~0.50 |
0.10 |
O.30 |
0.25 |
2 |
U20l00 |
10F |
O.07~O.13 |
≤O.07 |
O.25~O.50 |
O.15 |
0.30 |
0.25 |
3 |
U20150 |
15F |
0.12~O.18 |
≤O.07 |
0.25~O.50 |
0.25 |
0.30 |
0.25 |
4 |
U20082 |
08 |
0.05~O.11 |
O.17~O.37 |
O.35~O.65 |
O.10 |
O.30 |
O.25 |
5 |
U20102 |
lO |
0.07~O.13 |
0.17~O.37 |
0.35~0.65 |
0.15 |
O.30 |
O.25 |
6 |
U20152 |
15 |
O.12~0.18 |
0.17~O.37 |
O.35~0.65 |
O.25 |
O.30 |
O.25 |
7 |
U20202 |
20 |
O.17~0.23 |
0.17~0.37 |
0.35~0.65 |
O.25 |
O.30 |
O.25 |
8 |
U20252 |
25 |
O.22~0.29 |
0.17~O.37 |
O.50~O.80 |
O.25 |
O.30 |
0.25 |
9 |
U20302 |
30 |
O.27~O.34 |
O.17~O.37 |
O.50~O.80 |
0.25 |
O.30 |
0.25 |
10 |
U20352 |
35 |
O.32~0.39 |
O.17~O.37 |
O.50~O.B0 |
0.25 |
O.30 |
0.25 |
11 |
U20402 |
40 |
0.37~O.44 |
0.17~O.37 |
O.50~O.80 |
O.25 |
O.30 |
O.25 |
12 |
U20452 |
45 |
O.42_O.50 |
O.17~O.37 |
0.50~0.80 |
0.25 |
O.30 |
0.25 |
13 |
U20502 |
50 |
0.47~0.55 |
0.17~O.37 |
0.50~0.80 |
0.25 |
O.30 |
O.25 |
14 |
U20552 |
55 |
O.52~0.60 |
O.17~O.37 |
O.50~0.80 |
O.25 |
0.30 |
O.25 |
15 |
U20602 |
60 |
0.57~O.65 |
0.17~O.37 |
0.50~O.80 |
O.25 |
O.30 |
0.25 |
16 |
U20652 |
65 |
O.62~0.70 |
0.17~0.37 |
O.50~O.80 |
O.25 |
O.30 |
O.25 |
17 |
U20702 |
70 |
O.67~0.75 |
0.17~0.37 |
O.50~O.80 |
0.25 |
O.30 |
O.25 |
18 |
U20752 |
75 |
O.72~0.80 |
0.17~O.37 |
0.50~0.80 |
0.25 |
O.30 |
O.25 |
|