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Product Description Wear resistant steel plate is high quality special steel plate. It is irreplaceable part of mining machinery, cement and metallurgical industry. The wear-resistant steel alloy wear layer and the substrate are bonded.Some results are removed in response to a notice of local law requirement. For more information, please see here.The difference between 45# steel and 40Cr, 42CrMo Short Description Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI VCMO140 724 1.7225 42CrMo4 42CrMo4 4142 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.41 0.20 0.75 1.05 0.23 8 YRS. Contact Supplier. 1/6. plain high tensile test certificate mild steel c45 vs 42crmo4 pipe