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High strength 440C bright rod 1.4125 stainless steel rod S44004 round steel custom grinding rod diameter 1-150mm. Cr C Si Mn S P 16.00~18.00 0.95~1.20 ≤1.00 ≤1.00 ≤0.030 ≤0.035 Ni ≤0.60 Products ...