S-7 
 Chemical Composition% 
 C Si Mn P S Cr of Mo V- 
 0.45-0.55 0.20-1.00 0.2-0.9 <0.030 <0.030 3.00-3.50 1.30-1.80 <0.35 
 Tempered HRC57-45 
 Characteristics of applications: Product Features 
 A high impact toughness, good abrasion resistance. 
 Still retains excellent toughness at high strength under. 
 3 with a high hardening and softening resistance. 
 Excellent resistance to mechanical fatigue performance. 
 Uses: suitable for production of impact-resistant and anti-softening tools such as: 
 Tool industry - punch, forging mold, hammer, chisel, jig mold, cutting tool 
 Factory state: annealing to about HB200 

 Contact: Qian Yue / 13621731208