40CrMnMo7
2014-09-17 22:12:14 Origin： Remark：0 Click：
Specifications 40CrMnMo7 data sheet, 40CrMnMo7 Chemical, 40CrMnMo7 Properties Steelmaking, ESR melted, Blooming, Hot forging % rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or rough turned machining. We also possess the advanced precision machining equipments for catering for your different special requirements.
MATERIAL STANDARDS DATASHEET - DIN 40CrMnMo7
MATERIAL CATEGORY - Cold work alloy tool steel
TYPICAL APPLICATIONS
Alloy tool steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,
and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.
Cutting tools
Mechanical parts
Air hammer tools
Piercing tools
PRODUCT DESCRIPTION
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 softened condition.
Final heat treatment - heat treatment / QT
MATERIAL SPECIFICATIONS - EN ISO 4957: 2000 , DIN 17350 (1980)
AVAILABLE SHAPES
Round bar / flat bar / square bar / forged plate
Bright - peeled + polishing /centerless grinding / peeled + slidabrading
Forged - ring /tube /pipe casing /discs /shaft
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.35 ~ 0.45
Si (％): 0.20 ~ 0.40
Mn (％): 1.30 ~ 1.60
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.80 ~ 2.10
Mo (％): 0.15 ~ 0.25
V (％): -
Si (％): 0.20 ~ 0.40
Mn (％): 1.30 ~ 1.60
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.80 ~ 2.10
Mo (％): 0.15 ~ 0.25
V (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tenperature /℃: 1050～850
Annealing temperature /℃: 580～600
Hardness after annealing ≤HBW: 230
Annealing temperature /℃: 580～600
Hardness after annealing ≤HBW: 230
Quenching temperature /℃: 830～870
Cooling medium: oil
Common tempering temperature /℃: 500~650
Hardness after tempering at temperature HRC|100℃: 51
Hardness after tempering at temperature HRC|200℃: 50
Hardness after tempering at temperature HRC|300℃: 48
Hardness after tempering at temperature HRC|400℃: 46
Cooling medium: oil
Common tempering temperature /℃: 500~650
Hardness after tempering at temperature HRC|100℃: 51
Hardness after tempering at temperature HRC|200℃: 50
Hardness after tempering at temperature HRC|300℃: 48
Hardness after tempering at temperature HRC|400℃: 46
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 3mm to 1000mm
Plate / Sheet steel / Steel strip: 0.1mm to 1200mm
Width: 8mm to 1200mm
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.
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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