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碳素結構鋼

2013-08-06 20:24 作者:admin 來源:未知 瀏覽: 字號:

摘要:3.2結構鋼 3.2.1碳素結構鋼(見表2.1-31) 表2.1-31碳素結構鋼牌號、力學性能及應用舉例(摘自GB/T700-2006) 注: 1.各牌號的化學成分應符合GB/T7002006的有關規定。 2.碳素結構鋼鋼板、鋼帶、型鋼及鋼棒的尺寸規格應符合相應標準的規定。 3.Q195的屈服強度值僅

3.2結構鋼

3.2.1碳素結構鋼(見表2.1-31)
表2.1-31碳素結構鋼牌號、力學性能及應用舉例(摘自GB/T700-2006)
碳素結構鋼牌號、力學性能及應用舉例
注:

1.各牌號的化學成分應符合GB/T7002006的有關規定。

2.碳素結構鋼鋼板、鋼帶、型鋼及鋼棒的尺寸規格應符合相應標準的規定。

3.Q195的屈服強度值僅供參考,不作交貨條件。

4.厚度大于100mm的鋼材,抗拉強度下限允許降低20 MPa。寬帶鋼(包括剪切鋼板)抗拉強度上限不作交貨條件。

5.厚度小于25mm的Q235 B級鋼材,如供方能保證沖擊吸收功值合格,經需方同意,可不作檢驗。

6.冷彎試驗中的B為試樣寬度、a為試樣厚度或直搽。

7.厚度不小于12mm或直徑不小于16mm的鋼材應做沖擊試臉,試樣尺寸為1Omm x 10mm x 55mm,并符合本表規定。
 


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