AISI 52100, ASTM E52100, DIN 1.3505,JIS SUJ2, GCr15 Dia: 30~60mm Length:2000-13000mm or as required 1. Grade: AISI 52100 ... , ASTM E52100, DIN 1.3505,JIS SUJ2, GCr15 2. Specification: Dia ... .95-1.050.15-0.350.25-0.45Cr:1.40-1.650.300.25 6. Certification: ISO9001-2000; CE, UL ...