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結(jié)構(gòu)用無縫鋼管
結(jié)構(gòu)用無縫鋼管系列
標(biāo)準(zhǔn)
GB/T8162-2008， ISO2937， ASTM A53 ，ASTM A106，
JIS G 3441，BS EN 10210-1
用途
使用范圍包括用于一般結(jié)構(gòu)和機械結(jié)構(gòu)，大量用于建筑、機械、交通、航空、石油開采等行業(yè)的各種結(jié)構(gòu)管
尺寸公差
|
標(biāo)準(zhǔn) |
外徑公差 |
厚壁公差` |
||
|
GB/T 8162 |
D<50 |
±0.50mm |
S<4mm |
±12.5% |
|
D≥50 |
±1% |
4-20mm |
+15/-12.5% |
|
|
S≥20mm |
±12.5% |
|||
|
DIN1629 |
D50 |
±0.50mm |
S2Sn |
+15/-10% |
|
D48.3D48.3 |
±1% |
2SnS4Sn |
+12.5/-10% |
|
|
S4Sn |
±9% |
|||
|
ASTM A53 |
D<48.3 |
±0.4/-0.79mm |
±12.5% |
|
|
D≥48.3 |
±1% |
|||
|
ASTM A106 |
D<48.3 |
±0.4/-0.79mm |
±12.5% |
|
|
D48.3-114.3 |
±0.79mm |
|||
|
D≥114.3 |
±1.59/-0.79mm |
|||
力學(xué)性能
|
標(biāo)準(zhǔn) |
鋼級 |
抗拉強度(MPa) |
屈服強度(MPa) |
延伸率 |
|
|
<16mm |
16-30mm |
||||
|
GB/T 8162 |
10 |
335 |
205 |
195 |
24 |
|
20 |
390 |
245 |
235 |
20 |
|
|
35 |
510 |
305 |
295 |
17 |
|
|
45 |
590 |
335 |
325 |
14 |
|
|
16Mn |
490 |
325 |
315 |
21 |
|
|
DIN 1629 |
|
<16mm |
>16mm |
|
|
|
ST35 |
345-460 |
235 |
225 |
25 |
|
|
ST45 |
440-550 |
255 |
245 |
21 |
|
|
ST55 |
540-645 |
295 |
285 |
17 |
|
|
ST52 |
490-630 |
355 |
345 |
22 |
|
|
ST45 |
590-730 |
335 |
325 |
14 |
|
|
ASTM A53 |
A |
330 |
205 |
|
|
|
B |
415 |
240 |
|||
|
ASTM A106 |
A |
330 |
205 |
|
|
|
B |
415 |
240 |
|||
|
C |
485 |
275 |
|||
化學(xué)成分 (%)
|
標(biāo)準(zhǔn) |
牌號 |
C |
Si |
Mn |
P≤ |
S≤ |
Cu≤ |
Ni≤ |
Cr≤ |
Mo≤ |
V≤ |
|
GB/T 8162 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.15 |
/ |
/ |
|
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
|
35 |
0.32-0.39 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
|
45 |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.30 |
0.25 |
/ |
/ |
|
|
16Mn |
0.12-0.20 |
0.20-0.55 |
1.20-1.60 |
0.045 |
0.045 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
|
DIN 1629 |
St35 |
≤0.18 |
0.15-0.35 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
St45 |
≤0.25 |
0.15-0.35 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
|
St55 |
0.33-0.41 |
0.15-0.35 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
|
St52 |
≤0.20 |
≤0.55 |
≤1.50 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
|
ASTM A53 |
CK45 |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
ASTM A106 |
A |
≤0.25 |
/ |
≤0.95 |
0.05 |
0.045 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |
|
B |
≤0.30 |
/ |
≤1.20 |
0.05 |
0.06 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |
|
|
A |
≤0.25 |
≥0.10 |
0.27-0.93 |
0.035 |
0.035 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |
|
|
B |
≤0.30 |
≥0.10 |
0.29-1.06 |
0.035 |
0.035 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |
|
|
C |
≤0.35 |
≥0.10 |
0.29-1.06 |
0.035 |
0.035 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |