1.7231 (Germany / DIN) Material Properties

Other designations: ,
Material group: Ferrous Alloys / Cast steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2018-12
Total number of updates: 4
Update History:
2017-01 2014-04 2014-02

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 350 MPa view details
Tensile Strength 650 — 1000 MPa view details
Elongation, A 10 % view details
Impact Energy val1
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J view details
Rockwell Hardness (HR) val1
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view details
Yield Strength, Rp0.2 50.8 ksi view details
Tensile Strength 94.3 — 145 ksi view details
Elongation, A 10 % view details
Impact Energy val1
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ft·lb view details
Rockwell Hardness (HR) val1
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view details

Physical Properties

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Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.38 – 0.45
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.80 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.30
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
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
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

EN 10293: 2015 / Steel castings for general engineering uses

Heat Treatments

  • <b>Normalized</b> at 850-880°C until the core reaches this temperature. Subsequently, they have to cool down in stationary atmosphere <br /> <b>Quenched</b> at 830-860°C homogeneously and thoroughly to the quenching temperature <br /> <b>Tempered</b> at 530-670°C <br /> <b>Surface hardened</b> at 820-890°C by suitable gas burners or by eddy currents to this temperatures. Quenching is usually carried out in water. In order to reduce the risk of cracking, mildly acting quenchants can be used. If possible, immediately after surface hardening, a stress relief heat treatment shall be made at 140-180°C. The duration of stress relieving depends on the wall thickness. It should be at least 1 hour
  • Quenched and tempered: (+QT1) quenched from 880 to 950°C, cooled in liquid (for information only) and tempered from 600 to 650°C;<br />(+QT2) Quenched from 880 to 950°C, cooled in liquid (for information only) and tempered from 550 to 600°C.