Engine Valve Steel BarsSteel Bright Bars For Valve Steel of Cars and MotorsUse forGRADE(Chemical Composition)%JISCSiMnPSNiCrMoCu(others)Intake ValveSUH10.40-0.503.00-3.50≤0.60≤0.030≤0.030≤0.0607.50-9.50-(≤0.30)-SUH30.35-0.451.80-2.50≤0.060≤0.030≤0.030≤0.06010.00-12.000.70-1.30(≤0.30)-SUH110.45-0.551.00-2.00≤0.060≤0.030≤0.030≤0.0607.50-9.50-(≤0.30)-Exhaust ValveSUH350.48-0.58≤0.358.00-10.00≤0.040≤0.0303.25-4.5020.00-22.00--N 0.35-0.50SUH380.25-0.35≤1.00≤1.20.18-0.25≤0.03010.00-12.0019.00-21.001.80-2.50-B 0.001-0.010HRN751≤1.00≤0.50≤1.00-≤0.015≥7.0014.0-17.0-≤0.50-Sizes: Dia. 4.8----12.5mm for Solid/ solvent silver material Dia. 14---50mm for hot-rolled materials