6CrW2Si/SKS4/STS4/60WCrV8/S1 bar 1.High quality 2.Competitive price 3.On-time delivery 4.Excellent after-sales service Specially: High toughness, wearing resistance, high quenching hardness and certain high-temperature strength.Heat treatment:Quench: 860-900°C oil cooling ,HRC≥57Anneal : isothermal annealing heating temperature 800-820°C, keep temperature for 3-5 hours.Dimension(mm):Round : ...