... Quality service after sales 1. Description: alloy steel - forged steel - square bar -SAE51152. Specification: 50*50-650*650mm3. ... 20NiCrMo2-2, 67SiCr5, 61SiCr7, 41CrAlMo7, 10SPb20JIS: SCM430, SCM435, SCM440, SNC815, SNC415, SNC420H, SNCM439, SNCM220, SUP10, SCr415, SCr420 ... 60Si2Cr, 60Si2Mn, 60Si2MnA, 60CrMnA, 50CrVA, GCr15 steel stock forged steel square bar SAE 5115 / DIN 15NiCr13, 25CrMo4, 34CrMo5