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LD

LD Hardware Tool Steel Bar

 

LD steel for high strength and toughness Cold Work Die Steel, Shanghai Institute of Materials developed. Initially for cold heading die development, so according to their use to take "cold heading" two Chinese pinyin its code, the Chinese mechanical industry standard "die steel and heat treatment technology" JB / T 6058-92 has recommended the steel No. According to the production of practical experience, recommended LD steel used in the production of high toughness requirements of cold heading, cold extrusion, cold stamping die.