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钢号Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 技术条件Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] | 钢号Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 技术条件Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] |
Q195Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 不分等级,其化学成分和力学性能(σs,σb,δ和冷弯)均须保证。Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] 对轧制薄板和盘条等产品,其力学性能的保证条件,可根据产品特点和使用要求,在有关标准中另行规定。Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A1Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] B1Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A1钢保证的力学性能(σs,σb,δ和冷弯),B1钢保证的化学成分与Q195相同Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] A1钢的冷弯试验是附加保证条件Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] 1号钢没有特类钢Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
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Q215Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 分A、B等级,规定的化学成分和力学性能均须保证Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q215A不作冲击试验Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q215B 须作室温冲击试验,用V型缺口试样Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A2Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] C2Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A2钢保证的力学性能,C2钢保证的化学成分及力学性能,与Q215钢基本相同Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
|
Q235Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 分A、B、C、D等级,规定的化学成分和力学性能均须保证Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q235A不作冲击试验Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q235B 须作室温冲击试验,用V型缺口试样Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q235C、Q235D用于重要焊接结构,前者于0OC作冲击试验,后者于-20OC作冲击试验,试样,试样同上Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A3Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] C3Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A3钢保证的力学性能,C3钢保证的化学成分及力学性能,与Q235钢基本相同Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] A3钢附加保证常温冲击试验,用U型缺口试样Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] C3钢附加保证常温或-20OC冲击试验,试样同上Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
|
Q255Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 分A、B等级,规定的化学成分和力学性能均须保证Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q255A不作冲击试验Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] Q255B须作室温冲击试验,用V型缺口试样Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A4Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] C4Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| A4钢保证的力学性能,C4钢保证的化学成分及力学性能,与Q255钢基本相同Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½] C4钢附加保证冲击试验,用U型缺口试样Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
|
Q275Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| 不分等级,规定的化学成分和力学性能均须保证Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| C5Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
| C5钢保证的化学成分及力学性能,与Q275钢基本相同Û_-BiðÒÚbbs.3c3t.comw²X¿?°Ö½]
|