序号 | 统一数字代号 | 牌号 | 结构钢管化学成分.% | |||||||
C | Si | Mn | Cr | Ni | Cu | |||||
不大于 | ||||||||||
1 | U20080 | 08F | 0.05~O.11 | ≤0.03 | 0.25~0.50 | 0.10 | 0.30 | 0.25 | ||
2 | U20100 | 10F | O.07~0.13 | ≤0.07 | O.25~0.50 | 0.15 | 0.30 | 0.25 | ||
3 | U20150 | 15F | 0.12~0.18 | ≤0.07 | O.25~0.50 | 0.25 | O.30 | 0.25 | ||
4 | U20082 | 08 | 0.05~0.11 | 0.17~0.37 | O.35~0.65 | 0.10 | O.30 | 0.25 | ||
5 | U20102 | 10 | O.07~O.13 | 0.17~0.37 | O.35~0.65 | O.15 | O.30 | 0.25 | ||
6 | U20152 | 15 | 0.12~0.18 | O.17~0.37 | 0.35~0.65 | O.25 | O.30 | 0.25 | ||
7 | U20202 | 20 | 0.17~0.23 | 0.17~0.37 | O.35~0.65 | O.25 | O.30 | 0.25 | ||
8 | U20252 | 25 | O.22~0.29 | O.17~0.37 | 0.50~0.80 | O.25 | 0.30 | 0.25 | ||
9 | U20302 | 30 | 0.27~0.34 | 0.17~0.37 | O.50~0.80 | O.25 | O.30 | 0.25 | ||
10 | U20352 | 35 | 0.32~0.39 | O.17~0.37 | 0.50~0.80 | O.25 | O.30 | 0.25 | ||
11 | U20402 | 40 | 0.37~0.44 | O.17~0.37 | 0.50~0.80 | 0.Z5 | O.30 | 0.25 | ||
12 | U20452 | 45 | O.42~O.50 | O.17~0.37 | 0.50~0.80 | O.25 | O.30 | 0.25 | ||
13 | U20502 | 50 | O.47~0.55 | O.17~0.37 | O.50~0.80 | O.25 | O.30 | 0.25 | ||
14 | U20552 | 55 | O.52~0.60 | 0.17~0.37 | 0.50~0.80 | O.25 | 0.30 | 0.25 | ||
15 | U20602 | 60 | O.57~0.65 | 0.17~0.37 | 0.50~0.80 | 0.25 | O.30 | 0.25 | ||
16 | U20652 | 65 | 0.62~0.70 | O.17~0.37 | 0.50~0.80 | O.25 | O.30 | 0.25 | ||
17 | U20702 | 70 | O.67~0.75 | O.17~0.37 | 0.50~0.80 | 0.25 | 0.30 | 0.25 | ||
18 | U20752 | 75 | O.72~0.80 | 0.17~0.37 | 0.50~0.80 | O.25 | 0.30 | 0.25 | ||
19 | U20802 | 80 | O.77~0.85 | O.17~0.37 | 0.50~0.80 | 0.25 | 0.30 | 0.25 | ||
20 | U20852 | 85 | O.82~0.90 | 0.17~0.37 | 0.50~0.80 | 0.25 | O.30 | 0.25 | ||
21 | U21152 | 15Mn | O.12~0.18 | 0.17~0.37 | O.70~1.00 | 0.25 | O.30 | 0.25 | ||
22 | U21202 | 20Mn | 0.17~0.23 | 0.17~0.37 | 0.70~I.00 | 0.25 | O.30 | 0.25 | ||
23 | U21252 | 25Mn | 0.22~0.29 | 0.17~0.37 | O.70~1.00 | O.25 | O.30 | 0.25 | ||
24 | U21302 | 30Mn | O.27~0.34 | 0.17~0.37 | O.70~1.00 | O.25 | O.30 | 0.25 | ||
25 | U21352 | 35M13 | O.32~0.39 | 0.17~0.37 | O.70~1.00 | O.25 | 0.30 | 0.25 | ||
26 | U21402 | 40M13 | O.37~0.44 | 0.17~0.37 | 0.70~1.00 | 0.25 | O.30 | 0.25 | ||
27 | U21452 | 45Mn | O.42~0.50 | O.17~0.37 | O.70~1.00 | 0.25 | O.30 | 0.25 | ||
28 | U21502 | 50Mn | 0.48~0.56 | 0.17~0.37 | O.70~1.00 | O.25 | O.30 | 0.25 | ||
29 | U21602 | 60Mn | 0.57~O,65 | 0.17~0,37 | O.70~1.00 | O.25 | O.30 | 0.25 | ||
30 | U21652 | 65M13 | O.62~0.70 | 0.17~0.37 | O.90~1.20 | O.25 | O.30 | 0.25 | ||
31 | U21702 | 70M13 | 0.67~0.75 | 0.17~0.37 | O.90~1.20 | O.25 | O.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~位数字为"1") |
优质碳素结构管的材质是碳素结构钢(GB/T699-1999)的标准材质。
优质碳素结构管的主要材质:Q195,Q215A、B,Q235A、B、C、D,Q255A、B,Q275
优质碳素结构管的计算公式:(外径-壁厚)*壁厚*0.02466=KG/M