1.1740 (Germany / DIN) Material Properties

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

Data updates

Latest Update: 2019-05
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Brinell Hardness (HB) ≤ 231 view details
Rockwell Hardness (HR) 52 view details
Brinell Hardness (HB) ≤ 231 view details
Rockwell Hardness (HR) 52 view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.72 — 8 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 0.279 — 0.289 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.5500 – 0.6500
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
0.6000 – 0.8000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.0350
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 17350: 1980 / Tool Steels; Technical Conditions of Delivery

Heat Treatments

  • <b>Normalizing</b>: Heated at 820°C. <br /> <br /> <b>Soft annealing</b>: Slowly heated at 680-710°C for 4 hours, slowly cooled, if possible in the furnace (to at least 500°C). <br /> <br /> <b>Hardening in water</b>: Slowly heated at 770-800°C, quenched in water. The quenching water should be 20-30°C and not colder than 20°C. <br /> <br /> <b>Hardening in oil</b>: Slowly heated at 800-830°C, oil quenched. <br /><br /> <b>Stress relief annealing</b>: Slowly heated at 600-650°C for 1-2 hours, slowly cooled in furnace.
  • Hardening (quenching in water): 800-830°C; Tempering: 180°C