42CrMo4
2014-11-07 15:28:09 Origin： Remark：0 Click：
Hardened and tempered steel 42CrMo4 Round bar, Flat bar 42CrMo4 Plate, Shaft 42CrMo4 Forgings steelmaking, Hot forging / rolling, Heat treatment
TECHNICAL DATA SHEET - DIN 42CrMo4
MATERIAL CATEGORY - hardened and tempered steel
STOCK LIST & INVENTORY on hand - Round bar 20 ~ 450mm, Plate 8 ~ 35 x 300 ~ 1200mm
PRODUCT DESCRIPTION
The alloy is usually produced by EAF + VD +LF / BEF 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
MATERIAL SPECIFICATIONS - DIN EN 10083-2 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION (Mass weight - %)
Carbon, C (％): 0.38 ~ 0.45
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 - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1050～850
Heat treatment temperature /℃| annealing: 680~720
Heat treatment temperature /℃| annealing: 680~720
Heat treatment temperature /℃| Normalizing: 840~880
Heat treatment temperature /℃| Quenching: 830~860 Oil
Heat treatment temperature /℃| Tempering: 540~680
Hardness after annealing ≤HBS: 255
Heat treatment temperature /℃| Quenching: 830~860 Oil
Heat treatment temperature /℃| Tempering: 540~680
Hardness after annealing ≤HBS: 255
Steel dimension /mm: ≤16
Tensile strengt, |σb≥/MPa: 1100 ~ 1300
Yield strength, |σs≥/MPa: 900
Elongation, |δ5≥/(%): 10.0
Reduction of area, |ψ≥/(%): 40.0
Impact strength, |AKv ≥/J: 35
Tensile strengt, |σb≥/MPa: 1100 ~ 1300
Yield strength, |σs≥/MPa: 900
Elongation, |δ5≥/(%): 10.0
Reduction of area, |ψ≥/(%): 40.0
Impact strength, |AKv ≥/J: 35
Steel dimension /mm: 17 - 40
|σb≥/MPa: 1000 ~ 1200
|σs≥/MPa: 750
|δ5≥/(%): 11.0
|σb≥/MPa: 1000 ~ 1200
|σs≥/MPa: 750
|δ5≥/(%): 11.0
|ψ≥/(%): 45.0
|AKV≥/J: 40
|AKV≥/J: 40
Steel dimension /mm: 41 - 100
|σb≥/MPa: 900 ~ 1100
|σs≥/MPa: 650
|δ5≥/(%): 12.0
|ψ≥/(%): 50.0
|AKV≥/J: 40
|σb≥/MPa: 900 ~ 1100
|σs≥/MPa: 650
|δ5≥/(%): 12.0
|ψ≥/(%): 50.0
|AKV≥/J: 40
PRODUCT PROFILE
Round bar / Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 1000mm
Plate / Steel strip: 0.1mm to 1000mm
Width: 8mm to 1000mm
Steel sheet: thickness 0.50 ~ 6.00mm, width 1000mm X length 1000/2000mm - Standard size
Length: random length or based on the customer's special requirement
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM
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.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft and pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to Email or call our resident team of qualified production engineers, Email:sales@ccsteels.com
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