ML40Cr (China / GB) Material Properties

Other designations:
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: China / GB

Data updates

Latest Update: 2017-05
Total number of updates: 2
Update History:
2016-07

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 660 MPa view details
Tensile Strength 430 — 730 MPa view details
Elongation, A 11 % view details
Reduction of Area val1
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% view details
Rockwell Hardness (HR) val1
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Yield Strength, Rp0.2 95.7 ksi view details
Tensile Strength 62.4 — 105.9 ksi view details
Elongation, A 11 % view details
Reduction of Area val1
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% view details
Rockwell Hardness (HR) val1
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view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.38 – 0.43
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.90 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.60 – 0.90
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

GB/T 6478: 2015 / Steels for cold heading and cold extruding

Heat Treatments

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