Our jaw plate surface is clean, the size is standard, and the weight is accurate. The internal grain is dense, grain boundary is clear. Rarely unmelted carbide, grain is grade five. The jaw plates are still not breaking until they are used long time and become very thin because of their good toughness and impact.

 

Material: Carbon(C):0.90-1.35%;Manganese(Mn):11.0-14.0%;Silicon(Si):0.30-0.80%;Chromium(Cr):1.50-2.50%;Sulfur(S):<=0.04%;Phosphor(P):<=0.07%;

Mo:0.90-1.20%;

V:0.40-0.70%;

Ni:3.0-4.0%;