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| 您的位置：首頁 > 鋼管知識 > 結構用無縫鋼管化學成分、力學性能 |
結構用無縫鋼管化學成分、力學性能 |
| 天津恒永興主營：Q345E鋼管,Q345C鋼管,Q345D鋼管,16Mn化肥管--http://www.df8848.com |
●結構用無縫鋼管
標準:
GB/T8162-2008， ISO2937， ASTM A53 ，ASTM A106，
BS EN 10210-1
●用途:
使用范圍包括用于一般結構和機械結構，大量用于建筑、機械、交通、航空、石油開采等行業的各種結構管
●尺寸公差:
| 標準 |
外徑公差 |
S/D |
厚壁公差 |
| GB/T 8162 |
D≤102 |
±1%或±0.50mm，取其中較大者 |
—— |
±12.5%S |
| D＞102 |
≤0.05 |
±15%S |
| ＞0.05～0.10 |
±12.5%S |
| ＞0.10 |
+12.5%/-10%S |
| DIN1629 |
D50 |
±0.50mm |
S2Sn |
+15/-10% |
| D48.3D48.3 |
±1% |
2SnS4Sn |
+12.5/-10% |
| S4Sn |
±9% |
| ASTM A53 |
D≤48.3 |
±0.4mm |
+15%/-12.5%S |
| D≥60.3 |
±1% |
| ASTM A106 |
D≤48.3 |
±0.4mm |
+15%/-12.5%S |
| D48.3-114.3 |
±0.8mm |
| D141.3-219.1 |
+1.6/-0.8mm |
| D273.0-457 |
+2.4/-0.8mm |
●力學性能:
| 標準 |
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 |
≥410 |
245 |
235 |
20 |
| 35 |
≥510 |
305 |
295 |
17 |
| 45 |
≥590 |
335 |
325 |
14 |
| Q345B |
470-630 |
345 |
325 |
21 |
| DIN 1629 |
|
≤16mm |
>16mm |
|
| ST37.0 |
350-480 |
235 |
225 |
25 |
| ST44.0 |
420-550 |
275 |
245 |
21 |
| ST52.0 |
500-650 |
355 |
345 |
21 |
| EN10210-1 |
S355 |
490-630 |
355 |
345 |
22 |
| ASTM A53 |
A |
≥330 |
≥205 |
計算 |
| B |
≥415 |
≥240 |
| ASTM A106 |
A |
≥330 |
≥205 |
| B |
≥415 |
≥240 |
| C |
≥485 |
≥275 |
●化學成分(%):
| 標準 |
牌號 |
C |
Si |
Mn |
P≤ |
S≤ |
Cu≤ |
Ni≤ |
Cr≤ |
Mo≤ |
V≤ |
| GB/T 8162 |
10 |
0.07-0.13 |
0.17-0.37 |
0.35-0.65 |
0.030 |
0.030 |
0.25 |
0.30 |
0.15 |
/ |
/ |
| 20 |
0.17-0.23 |
0.17-0.37 |
0.35-0.65 |
0.030 |
0.030 |
0.25 |
0.30 |
0.25 |
/ |
/ |
| 35 |
0.32-0.39 |
0.17-0.37 |
0.50-0.80 |
0.030 |
0.030 |
0.25 |
0.30 |
0.25 |
/ |
/ |
| 45 |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.030 |
0.030 |
0.25 |
0.30 |
0.25 |
/ |
/ |
| Q345B |
≤0.20 |
≤0.50 |
≤1.70 |
0.035 |
0.035 |
0.30 |
0.50 |
0.30 |
0.10 |
0.15 |
| DIN 1629 |
St37.0 |
≤0.17 |
/ |
/ |
0.040 |
0.040 |
0.25 |
0.25 |
0.25 |
/ |
/ |
| St44.0 |
≤0.21 |
/ |
/ |
0.040 |
0.040 |
0.25 |
0.25 |
0.25 |
/ |
/ |
| St52.0 |
≤0.22 |
≤0.55 |
≤1.60 |
0.040 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
| EN 10210-1 |
S355 |
≤0.22 |
≤0.55 |
≤1.60 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
| ASTM A53 |
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 |
0.045 |
0.40 |
0.40 |
0.40 |
0.15 |
0.08 |
| ASTM A106 |
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 |
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