High chrome grate bar 1.superior noise suppression 2.corrosion resistance 3. ... -resist High chrome grate barThe materials of the grate bar include: Chemical compositionCSiMnPSCrNiContent1.0~1.6≤1.50≤1 ... castings (low alloy steel/ high chromium cast iron ),low-alloyed steel tube mould steel castings,engineering machinery steel castings,colliery ... case, crate, parcel, bale, package, barrel, etc. grate bar