我是新人，理解有误请大家指教。
关于SA-20表A2.15中规定的温度值并不是该材料的冲击温度下限，而是上限，详见SA-20 12.1.5 " If a test temperature is not specified in the purchase order, tests shall be conducted at a temperature no higher than is given in Table A1.15 [A2.15] for the applicable product specification, grade, class, and plate thickness. The actual test temperature used shall be reported with the test results."
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发表于 2014-11-13 08:38:45
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发表于 2014-12-19 15:54:43
