heavy forged shaft

steel forged shaft 1.forged shafts in ZYZXDY are madefrom AISI 4145H MOD Alloy steel. 2. Strict UT inspection according to ASTM A-388 to guarantee high quality. 3.Tungsten Carbide alloy buttons were inserted into blades so as to keep its hardness. 4.The physical properties are guaranteed one inch below the surface at normal temperature. Mechanical properties: Yield Strength: 110Mpa Min (0.2% offset) Tensile Strength 140MpaMin Elongation 13% Min Reduction of Area 45% Min Impact Strength(Charpy V) 54 Min Hardness 285HB Min