42CrMo4
2015-02-08 09:52:13 Origin： Remark：0 Click：
Material specification 42CrMo4 Round bar, Flat bar, Plate 42CrMo4 Stock Available 1.7225 steelmaking, ESR, blooming, forging, rolling, heat treatment,
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATASHEET - DIN 42CrMo4 & 1.7225
MATERIAL CATEGORY: Cold heading & cold extruding steel
MATERIAL SPECIFICATIONS: DIN EN 10263-4 (2002), DIN 1654 (1989)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.38～0.42
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.15 ~ 0.30
Nickel, Ni (％): —
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.15 ~ 0.30
Nickel, Ni (％): —
MECHANICAL PROPERTIES - Cold heading/Cold extruding steel
Soft annealing temperature /℃: 680～720
Soft annealed (≤100mm)|σb/MPa: 650
Soft annealed (≤100mm)|ψ(％): 56
Cold draw soft annealed (≤60mm)|σb/MPa: 630
Cold draw soft annealed (≤60mm)|ψ(％): 58
Soft annealed (≤100mm)|σb/MPa: 650
Soft annealed (≤100mm)|ψ(％): 56
Cold draw soft annealed (≤60mm)|σb/MPa: 630
Cold draw soft annealed (≤60mm)|ψ(％): 58
Heat treatment / quenching temperature /℃| water quenching: 820~850
Heat treatment / quenching temperature /℃|oil quenching: 850~880
Heat treatment / tempering temperature /℃: 500~670
Heat treatment / quenching temperature /℃|oil quenching: 850~880
Heat treatment / tempering temperature /℃: 500~670
Mechancial after heat treatment
Tensile strength, Rm / MPa: 980 - 1180
Yield strength, Rp0.2 ≥ MPa: 765
Elongation, A5 (％): 11.0
Reduction of area, Z ≥ (％): 45
Tensile strength, Rm / MPa: 980 - 1180
Yield strength, Rp0.2 ≥ MPa: 765
Elongation, A5 (％): 11.0
Reduction of area, Z ≥ (％): 45
Impact strength, ≥ AKv DVM-V form sampling /J: 41
PRODUCT DESCRIPTION
Proven performance in long-term service.
Extensive database of long term, high temperature test results.
High room and elevated temperature strength.Good creep.
High notch tolerance.
Thermal expansion coefficients compatible with low alloy steel turbine casing materials.
Lower design and operating risks
Simplified design for bolting configuration compared with martensitic steels or high nickel alloys.
Proven performance in long-term service.
Extensive database of long term, high temperature test results.
High room and elevated temperature strength.Good creep.
High notch tolerance.
Thermal expansion coefficients compatible with low alloy steel turbine casing materials.
Lower design and operating risks
Simplified design for bolting configuration compared with martensitic steels or high nickel alloys.
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - heat treatment / QT
TYPICAL APPLICATIONS
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - heat treatment / QT
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft.
Pressure vessel, seamless pipe.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft.
Pressure vessel, seamless pipe.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
PRODUCT PROFILE & DIMENSIONS
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
PRODUCT PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.50mm to 800mm
Square bar / Flat bar: 6mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Square bar / Flat bar: 6mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
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