外径/mm |
壁 厚/mm |
||||||||
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
5 |
6 |
|
理论质量/(kg/m) |
|||||||||
10 |
0.222 |
0.314 |
0.395 |
||||||
14 |
O.321 |
0.462 |
O.592 |
O.709 |
|||||
18 |
0.789 |
0.956 |
|||||||
19 |
0.838 |
1.02 |
|||||||
25 |
1.13 |
1.39 |
1.63 |
||||||
32 |
1.82 |
2.15 |
2.46 |
2.76 |
|||||
38 |
2.59 |
2.98 |
3.35 |
||||||
45 |
3.11 |
3.58 |
4.04 |
4.93 |
|||||
57 |
5.23 |
6.41 |
7.55 |
||||||
60 |
5.52 |
6.78 |
7.99 |
外径/mm |
壁 厚/mm |
|||||||
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
|
理论质量/(kg/m) |
||||||||
60 |
7.99 |
lO.26 |
12.33 |
|||||
83 |
11.39 |
14.80 |
18.00 |
21.O1 |
||||
89 |
12.28 |
15.98 |
19.48 |
22.79 |
||||
102 |
14.20 |
18.54 |
22.69 |
26.63 |
||||
114 |
15.98 |
20.9l |
25.65 |
30.18 |
34.52 |
38.67 |
||
127 |
17.90 |
23.48 |
28.85 |
34.03 |
39.01 |
43.80 |
||
14l |
19.97 |
26.24 |
32.30 |
38.17 |
43.85 |
49.32 |
||
152 |
21.60 |
28.41 |
35.02 |
41.43 |
47.64 |
53.66 |
||
159 |
22.64 |
29.79 |
36.74 |
43.50 |
50.06 |
56.42 |
||
168 |
23.97 |
31.56 |
38.96 |
46.16 |
53.17 |
59.97 |
||
219 |
31.52 |
41.63 |
51.54 |
61.62 |
70.77 |
80.10 |
||
273 |
77.24 |
89.42 |
101.40 |
113.19 |
12 |
管种类 |
外径(D) |
管壁厚(S) |
||
冷拔管 |
管外径(mm) |
允许偏差(mm) |
管壁厚 (mm) |
允许偏差(mm) |
>30~50 |
±0.3 |
≤30 |
±10% |
|
>50~219 |
±0.8% |
|||
热轧管 |
>219 |
±1.0% |
>20 |
±10% |
标准 |
牌号 |
抗拉强度(MPa) |
屈服强度(MPa) |
伸长率(%) |
冲击功(J) |
布氏硬度(HB) |
交货状态 |
GB9948 |
10 |
330~490 |
≥205 |
≥24 |
/ |
/ |
正火 |
20 |
410~550 |
≥245 |
≥21 |
≥39 |
/ |
正火 |
|
15CrMo |
440~640 |
≥235 |
≥21 |
≥47 |
≤170 |
正火加回火 |
|
1Cr2Mo |
≥390 |
≥175 |
≥22 |
≥92 |
≤179 |
正火加回火 |
|
1Cr5Mo |
≥390 |
≥195 |
≥22 |
≥92 |
≤187 |
退火 |
主要材料成份:
10#(st35),20#(st45),35#(st55),45#(st45),16Mn(st52)等。
DIN2391-81标准外径正负公差为0.08-0.10,内径正负公差为0.10-0.15,壁厚正负公差为0.10-0.15为准
标准 |
牌号 |
化学成分(%) |
|||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
||
GB9948 |
10 |
0.07~0.14 |
0.17~0.37 |
0.35~0.65 |
≤0.035 |
≤0.035 |
≤0.15 |
/ |
≤0.25 |
20 |
0.17~0.24 |
0.17~0.37 |
0.35~0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
/ |
≤0.25 |
|
15CrMo |
0.12~0.18 |
0.17~0.37 |
0.40~0.70 |
≤0.035 |
≤0.035 |
0.80~1.10 |
0.40~0.55 |
≤0.30 |
|
1Cr2Mo |
≤0.15 |
0.50~1.00 |
0.30~0.60 |
≤0.035 |
≤0.030 |
2.15~2.85 |
0.45~0.65 |
/ |
|
1Cr5Mo |
≤0.15 |
≤0.50 |
≤0.60 |
≤0.035 |
≤0.030 |
4.00~6.00 |
0.45~0.60 |
≤0.60 |
钢 |