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Grade   Density(g/cm3)        HRA            Bending strength(N/mm2)

YG6      14. 7~15. 1            ≥90. 0         ≥1670

YG6X   14. 8~15. 1            ≥91. 7         ≥1560

YG8      14. 6~14. 9            ≥89. 0         ≥1880

Etc.