25crmo4 / 1.7218 Forged Steel Round Bars

We are an ISO 9001: 2008 certified company affianced in manufacturing, exporting and supplying exceptional quality 25CrMo4 / 1.7218 Forged Steel Round Bars. Our dexterous professionals manufacture the offered bars using optimum quality steel and the innovative technology as per the international standards of quality. These bars are suitable for their use in fabrication and construction related applications. Also, clients can avail these 25CrMo4 / 1.7218 Forged Steel Round Bars at economic prices from us.Features: Sturdy construction High durability Excellent finish Resistant to corrosion Specifications: C: 0.30-0.38, Si: max0.40, Mn: 0.50-0.80, P: max0.025, S: max0.035Cr: 1.30-1.70, Ni: 1.30-1.70, Mo: 0.15-0.30 Equivalent Grades AISI/ASTM: 4340JIS: SNCM447BS: 817M40 / EN24 Form of 1.6582 Steel Square / Flat / Round Bars, Rollers, Blocks and Shafts 34CrNiMo6 Steel Sizes As Forged: Round bar Size: Dia.80-1,000mm Length: 3,000-10,000mm Square bar Size: 150x150-600x600mm Length: 3,000-8,000mm (Forged Flat Bars, Rollers, Shafts, and Blocks can be Customized) As Rolled: Round Bar Size: Dia.10-300mm Length: 3,000-10,000mm(can be Customized) Surface Condition Rough Machined, Turned and Black Hardness of 1.6582 Steel Annealed (+A): max 269HB Mechanical Properties of 1.6582 / 34CrNiMo6 (+QT) Yield point: 835MPa Tensile strength: 980MPa Elongation after fracture: 12% Impact test: 45J(+20oC) Percentage decrease of area after fracture: 55% Quenched & Tempered (+QT) of 34CrNiMo6 Steel Heat din 1.6582 steel to 850oC temperature, slowly Soak at this temperature or hardening, quench in oil Temper as the steel reaches room temperature Uniformly heat to the right temperature Withdraw from furnace and air cool The common tempering temperature is 600oC, depending on the real requirements Application of din 1.6582 / 34CrNiMo6 Steel The steel is used to manufacture tools, which needs high strength & good plasticity. It is chosen to make important & big size parts, such as turbine shaft larger than 250 mm diameter, heavy machinery axle, high-load of transmission parts, crank shafts, gears, fasteners, etc.