40CrMnMoS8-6
2014-09-18 13:51:24 Origin： Remark：0 Click：
EN ISO 4957 Material Specifications 40CrMnMoS8-6 Plate, Round bar 40CrMnMoS8-6 Flat bar, Forgings Steelmelting (ESR refined), Hot forging, Heat treatment.
MATERIAL TECHNICAL STANDARDS - DIN 40CrMnMoS8-6
MATERIAL CATEGORY: Cold work alloy tool steel
MATERIAL SPECIFICATIONS - EN ISO 4957: 2000 , DIN 17350 (1980)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.35 ~ 0.45
Silicon Si (％): 0.30 ~ 0.50
Manganese, Mn (％): 1.40 ~ 1.60
Phosphorus, P (％)≤: 0.030
Sulfur, S (％)≤: 0.05 ~ 0.10
Chromium, Cr (％): 1.80 ~ 2.00
Molybdenum, Mo (％): 0.15 ~ 0.25
Vanadium, V (％): -
Silicon Si (％): 0.30 ~ 0.50
Manganese, Mn (％): 1.40 ~ 1.60
Phosphorus, P (％)≤: 0.030
Sulfur, S (％)≤: 0.05 ~ 0.10
Chromium, Cr (％): 1.80 ~ 2.00
Molybdenum, Mo (％): 0.15 ~ 0.25
Vanadium, V (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tenperature /℃: 1050～850
Annealing temperature /℃: 760～780
Hardness after annealing ≤HBW: 230
Annealing temperature /℃: 760～780
Hardness after annealing ≤HBW: 230
Quenching temperature /℃: 830～870
Cooling medium: oil /400℃heating bath
Common tempering temperature /℃: 640~680
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℃: 45
Cooling medium: oil /400℃heating bath
Common tempering temperature /℃: 640~680
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℃: 45
AVAILABLE SHAPES
Round bar / flat bar / square bar / ring / forged plate
Bright - peeled + polishing /centerless grinding / peeled + slidabrading
Forged - ring /tube /pipe casing /discs /shaft
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
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
FORMS & DIMENSIONS
Round bar / Disc (diameter): 5.5mm to 950mm
Square bar / flat bar: 10mm to 1000mm
Plate / Sheet steel / Steel strip: 0.1mm to 1000mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, other different shapes based on OEM.
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