1.7321 (Germany / DIN) Material Properties

Other designations:
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2025-02
Total number of updates: 7
Update History:
2022-06 2020-05 2019-06 2019-03 2018-01 2015-04

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Tensile Strength 530 MPa view details
Reduction of Area 57 % view details
Brinell Hardness (HB) 140 — 287 view details
Grain Size val1
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Tensile Strength 76.9 ksi view details
Reduction of Area 57 % view details
Brinell Hardness (HB) 140 — 287 view details
Grain Size 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
0.1700 – 0.2200
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.3000 – 0.5000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.6000 – 0.9000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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

DIN 1652-3: 1990 / Bright steel made from case hardening steel; technical delivery conditions

Heat Treatments

  • Blank hardening (cooling in oil): 910°C; End quench test: quench from 910°C Carburizing: 900-950°C; Core hardening: 890-920°C; Case hardening (cooling in oil): 810-840°C; Tempering: 170-210°C (as a guide, for 1 hour minimum)
  • Carburizing at 880 - 980°C. Core-hardening at 860 - 900°C, case hardening at 780 - 820°C, quenching. Tempering at 150 - 200°C.