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图 6 - 1 1级图 6 - 3 3级图 6 - 5 5级图 6 - 2 2级图 6 - 4 4级图 6 - 6 6级图 6 4Cr3Mo2 Ni VNb B钢马氏体评级图 5 0 0×6 检验报告检验报告应包括下列内容 :a)试样或模具名称、图号、材料成分或钢号、热处理工艺及炉批号 ;b)检验数量及部位 ;c)检验结果
Figure 6 - 1 Level 1 Figure 6 - 3 Level 3 Figure 6 - 5 5 Level Figure 6 - 2 Level 2 Figure 6 - 4 Level 4 Figure 6 - 6 Level 6 Figure 6 Martensitic grade for 4Cr3Mo2 Ni VNb B 5 0 0 × 6 Inspection Report The inspection report shall include the following: a) the name of the sample or mold, drawing number, material composition or steel number, heat treatment process and furnace batch number; b) the quantity and location of the test; c) the test result