... days. Quality service after sales 1. Description: alloy steel - forged steel - square bar -SAE51152. Specification: 50*50-650*650mm3. Delivery: 10-30 ... ,BS,SAE,ISO,TOCT,GB,ABNTSAE/AISI: 3415, 4130, 4135, 4140, 4142, 4320, 4340, 5115, 5120, 5135, 5140, 5160, 52100, ... , Y12Pb, 60Si2Cr, 60Si2Mn, 60Si2MnA, 60CrMnA, 50CrVA, GCr15 steel stock forged steel square bar SAE 5115 / DIN 15NiCr13, 25CrMo4, 34CrMo5