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30crmov9 DIN1.7707 Nitriding Steel Round Bar1
Steel Products30crmov9DIN1.7707
Hunan Fushun Metal Co., Ltd.
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Product Description ApplicationStructural parts of medium and large cross sections and high surface hardness, e.g., valve and gate valves, cylinders for combustion engines, superheated steam valves and fittings.All Grades ComparisonDINEN1.770730CrMoV9Quality StandardEN 10250 Open steel die forgings for general engineering purposes. Alloy special steelsChemical Composition(%)CMnSiPSCrNiMoV0.26-0.340.40-0.700.40 max0.035 max0.035 max2.30-2.700.60 max0.15-0.250.10-0.20Mechanical Properties(T=20°C if not differently stated)ProcessDiameter(mm)Tensile Strength Rm (Mpa)Yield Strength Rp0.2 (Mpa)Elongation A5 (%)Impact Value Kv (J) Room TemperatureQUENCHED AND TEMPERED160 max900 min700 min12 min35 minQUENCHED AND TEMPERED160-330800 min590 min14 min35 minHEAT TREATMENT:Soft Annealing: Heat to 680-720oC, cool slowly. This will produce a maximum Brinell hardness of 248.Nitriding:Gas/plasma nitriding temperature (gas, salt bath): 570-580°CGas/plasma nitriding temperature (powder, plasma): 580°CSurface hardness after nitriding: 800 HVHardening: Harden from a temperature of 850-880°C followed by oil quenching.· Tempering:Tempering temperature: 570-680°C.Forging:Hot forming temperature: 1050-850°C.Mill′s test certificate:EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
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