Standard : EN,SAE,GB
Quality Standard : OEM
Material Grade : GG 25,HT 250
Chemeical Composition :C:3.5-3.7 si 1.5-2.1,1% mn:0.6-0.9 %
P <0.12% S:<0.1% Cr: 0.6-0.9% Cu:0.3-0.8
Mechanical Performance : tensile strenght >_ 250Mpa
Hardness : HB180-225
Non-Destructive Test : Metallurgical Test
Demension Inspection : Demension inspection report