20Mn2A (China / GB) Material Properties

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

Data updates

Latest Update: 2015-08
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 590 MPa view details
Tensile Strength 785 MPa view details
Elongation, A 10 % view details
Reduction of Area val1
Full data access requires a free trial. Sign Up Free
% view details
Impact Energy val1
Full data access requires a free trial. Sign Up Free
J view details
Yield Strength, Rp0.2 85.6 ksi view details
Tensile Strength 113.9 ksi view details
Elongation, A 10 % view details
Reduction of Area val1
Full data access requires a free trial. Sign Up Free
% view details
Impact Energy val1
Full data access requires a free trial. Sign Up Free
ft·lb view details

Physical Properties

Temperature

≤ 0°C
0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient val1
Full data access requires a free trial. Sign Up Free
view details
Thermal Conductivity 46.1 W/(m∙°C) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
W/(m∙°C) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
W/(m∙°C) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
W/(m∙°C) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
W/(m∙°C) view details
Heat Capacity val1
Full data access requires a free trial. Sign Up Free
J/(kg∙°C) 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 val1
Full data access requires a free trial. Sign Up Free
view details
Thermal Conductivity 26.6 BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
Full data access requires a free trial. Sign Up Free
BTU/(h∙ft∙°F) view details
Heat Capacity val1
Full data access requires a free trial. Sign Up Free
BTU/(lb∙°F) view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.020 – 0.050
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.17 – 0.24
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
1.40 – 1.80
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7440-21-3

Steels for welded round link chains for mines, GB/T 10560 / 2008

Heat Treatments

  • Quenching at 850°C, water cooling, tempered at 200°C, water cooling; Quenching at 880°C, water cooling, tempered at 440°C, air cooling.