折疊外徑壁厚
|
外徑/mm |
壁 厚/mm |
||||||||
|
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
5 |
6 |
|
|
理論質(zhì)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 |
|
外徑/mm |
壁 厚/mm |
|||||||
|
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
|
|
理論質(zhì)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 |
折疊尺寸公差
|
管種類 |
外徑(D) |
管壁厚(S) |
|
|
|
管外徑(mm) |
允許偏差(mm) |
管壁厚 (mm) |
允許偏差(mm) |
|
|
>30~50 |
±0.3 |
≤30 |
±10% |
|
|
>50~219 |
±0.8% |
|
|
|
|
熱軋管 |
>219 |
±1.0% |
>20 |
±10% |
折疊力學(xué)性能
|
標(biāo)準(zhǔn) |
抗拉強(qiáng)度(MPa) |
屈服強(qiáng)度(MPa) |
伸長率(%) |
沖擊功(J) |
布氏硬度(HB) |
交貨狀態(tài) |
|
|
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標(biāo)準(zhǔn)外徑正負(fù)公差為0.08-0.10，內(nèi)徑正負(fù)公差為0.10-0.15，壁厚正負(fù)公差為0.10-0.15為準(zhǔn)