21MnCr5
2014-09-17 09:55:19 Origin： Remark：0 Click：
Description 21MnCr5 datasheet, 21MnCr5 Chemical, Tool steel 21MnCr5 Properties Steelmaking, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TOOL STEEL DATA SHEET - DIN 21MnCr5
MATERIAL CATEGORY - Cold work alloy tool steel
MATERIAL SPECIFICATIONS - EN ISO 4957: 2000 , DIN 17350 (1980)
AVAILABLE SHAPES
Round bar / flat bar / square bar / plate / valve / ring
Bright - peeled + polishing /centerless grinding / peeled + slidabrading
Forged - ring /tube /pipe casing /discs /shaft
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.18 ~ 0.24
Si (％): 0.15 ~ 0.35
Mn (％): 1.10 ~ 1.40
P (％)≤: 0.030
S (％)≤: 0.030
Cr (％): 1.00 ~ 1.30
Mo (％): -
V (％): -
Si (％): 0.15 ~ 0.35
Mn (％): 1.10 ~ 1.40
P (％)≤: 0.030
S (％)≤: 0.030
Cr (％): 1.00 ~ 1.30
Mo (％): -
V (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tenperature /℃: 1050～850
Annealing temperature /℃: 680～710
Hardness after annealing ≤HBW: 215
Annealing temperature /℃: 680～710
Hardness after annealing ≤HBW: 215
Quenching temperature /℃: 810～840
Cooling medium: water / oil
Common tempering temperature /℃: 150~180
Hardness after tempering at temperature HRC|100℃: 61 surface hardness
Hardness after tempering at temperature HRC|200℃: 60 surface hardness
Hardness after tempering at temperature HRC|300℃: 57 surface hardness
Hardness after tempering at temperature HRC|400℃: 54 surface hardness
Cooling medium: water / oil
Common tempering temperature /℃: 150~180
Hardness after tempering at temperature HRC|100℃: 61 surface hardness
Hardness after tempering at temperature HRC|200℃: 60 surface hardness
Hardness after tempering at temperature HRC|300℃: 57 surface hardness
Hardness after tempering at temperature HRC|400℃: 54 surface hardness
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 / 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 softened condition.
Final heat treatment - heat treatment / QT
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 600mm
Square bar / Flat bar: 10mm to 600mm
Plate / Sheet steel / Steel strip: 0.5mm to 500mm
Width: 8mm to 1000mm
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. E-mail: sales@ccsteels.com
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