国产一级久久久I中文资源在线官网I国产日本亚洲高清I1025久久久I国内99精品I精品吃奶一区二区三区视频I丁香六月激情婷婷I色中文I丁香花中文字幕

如何計算冷拔無縫鋼管屈服強度抗拉強度伸長率-浙江舟山冷拔鋼管知識

如何計算冷拔無縫鋼管屈服強度抗拉強度伸長率

力學性能    化學成份
屈服強度    抗拉強度    伸長率    C    Si    Mn    S    P
MPa    kg/mm²    MPa    kg/mm²    min    不大于    不大于    不大于
Q215AQ215B    215    22    335-410    34-42    31    0.09-0.15    0.03    0.25-0.55    0.0500.045    0.045
Q235AQ235B    235    24    375-460    38-47    26    0.14-0.220.12-0.20    0.3    0.30-0.650.30-0.70    0.500.45    0.0450.045
Q235C    ≤0.18    0.35-0.80    0.4    0.04
Q235D    ≤0.17    0.35-0.80    0.035    0.035
16Mn(Q345B)    345    35    510-600    51.6    22    0.12-0.20    0.20-0.55    1.2-1.6    0.045    0.045
X42    289    29.5    413    42.1    　    0.28    -    1.25    0.03    0.03
X52    358    36.5    455    46.4    0.3    -    1.35    0.03    0.03
X56    386    39.4    489    49.9    0.26    -    1.35    0.03    0.03
X60    413    42.1    517    52.7    0.26    -    1.35    0.03    0.03
X65    448    45.7    530    54    0.26    -    1.4    0.03    0.03
X70    482    49.2    565    57.6    0.26

友情提示：來電咨詢請說明信息來源于鋼管在線(www.168fiber.com)，即可享受優惠價格！