优质碳素结构钢的牌号和性能(GB/T699—1999)
|
序号 |
统一数字代号 |
牌号 |
化学成分(质量分数)(%)
|
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 |
U
20l
00 |
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 |
19 |
U20802 |
80 |
O.77~0.85 |
O.17~0.37 |
O.50~O.80 |
0.25 |
O.30 |
0.25 |
20 |
U20852 |
85 |
O.82~0.90 |
O.17~0.37 |
0.50~O.80 |
O.25 |
O.30 |
O.25 |
21 |
U21152 |
15№ |
O.12~O.18 |
O.17~O.37 |
O.70~1.00 |
O.25 |
O.30 |
0.25 |
22 |
U21202 |
20Mn |
0.17~O.23 |
O.17~O.37 |
O.70~1.00 |
O.25 |
0.30 |
O.25 |
23 |
U21252 |
25Mn |
O.22~O.29 |
0.17~0.37 |
O.70~1.00 |
O.25 |
O.30 |
O.25 |
24 |
U21302 |
30Mn |
0.27~O.34 |
O.17~0.37 |
0.70~1.00 |
O.25 |
O.30 |
0.25 |
25 |
U21352 |
35Mn |
O.32~O.39 |
O.17~O.37 |
O.70~1.00 |
0.25 |
O.30 |
O.25 |
26 |
U21402 |
40Mn |
O.37~0.44 |
O.17~0.37 |
O.70~1.00 |
0.25 |
0.30 |
O.25 |
27 |
U21452 |
45Mn |
0.42~0.50 |
0.17~O.37 |
0.70~1.00 |
O.25 |
O.30 |
O.25 |
28 |
U21502 |
50Mn |
O.48~0.56 |
O.17~O.37 |
O.70~1.00 |
0.25 |
0.30 |
0.25 |
29 |
U21602 |
60Mn |
0.57~0.65 |
O.17~O.37 |
0.70~1.00 |
0.25 |
0.30 |
0.25 |
30 |
U21652 |
65Mn |
0.62~0.70 |
0.17~O.37 |
O.90~1.20 |
O.25 |
0.30 |
0.25 |
3l
|
U21702 |
70Mn |
0.67~O.75 |
0.17~0.37 |
0.90~1.20 |
O.25 |
O.30 |
O.25 |
|
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