[GB/T 3488-1983] 硬質合金 顯微組織的金相測定[已作廢]
發布時間:1983-02-21
實施時間:1983-01-02
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[GB/T 3489-1983] 硬質合金 孔隙度和非化合碳的金相測定[已作廢]
發布時間:1983-02-21
實施時間:1983-01-02
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[GB 3490-1983] 含銅貴金屬材料氧化銅金相檢驗方法[現行]
發布時間:1983-02-21
實施時間:1983-12-01
本標準適用于航空電器儀表用的電接觸含銅貴金屬合金中的氧化亞銅金相試驗。
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[GB/T 2971-1982] 碳素鋼和低合金鋼斷口檢驗方法[已作廢]
發布時間:1982-03-25
實施時間:1982-01-02
本標準規定的斷口檢驗方法,適用于碳素結構鋼、低合金結構鋼的鋼板、條鋼和型鋼。也可供其它鋼斷口檢驗參考..
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[HB 5177-1981] 金屬絲材拉伸試驗方法[已作廢]
發布時間:1981-07-15
實施時間:1981-12-01
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[HB 5176-1981] 金屬絲材纏繞試驗方法[已作廢]
發布時間:1981-07-15
實施時間:1981-12-01
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[HB 5178-1981] 金屬板、帶材反復彎曲試驗方法[已作廢]
發布時間:1981-07-15
實施時間:1981-12-01
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[HB 5175-1981] 金屬絲材反復彎曲試驗方法[已作廢]
發布時間:1981-07-15
實施時間:1981-12-01
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[GB/T 1979-1980] 結構鋼低倍組織缺陷評級圖[已作廢]
發布時間:1981-05-01
實施時間:1981-05-01
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[HB 5152-1980] 金屬室溫旋轉彎曲疲勞試驗方法[已作廢]
發布時間:1980-11-10
實施時間:1981-01-01
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[HB 5153-1980] 金屬高溫旋轉彎曲疲勞試驗方法[已作廢]
發布時間:1980-11-10
實施時間:1981-01-01
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發布時間:1979-01-02
實施時間:1980-09-01
本標準適用于結構鋼、滾珠鋼、工具鋼及彈簧鋼的熱軋、鍛造、冷拉條鋼和鋼坯。其它鋼類要求作斷口檢驗時,可..
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[GB/T 4156-2020] 金屬材料 薄板和薄帶 埃里克森杯突試驗[現行]
發布時間:2020-03-31
實施時間:2020-10-01
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