DIN 1.7030 Structural and constructional steels

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

Data updates

Latest Update: 2022-06
Total number of updates: 4
Update History
2020-12 2019-06 2019-03

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DIN 1.7030 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.2400 – 0.3100
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.9000 – 1.2000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.6000 – 0.9000
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

DIN 1652-4: 1990 / Bright steel made from steel for quenching and tempering; technical delivery conditions

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DIN 1.7030 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 375 properties — only a subset is shown here.

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DIN 1.7030 Heat Treatments

  • End quench test: Quench from 850°C Carburizing: 880 to 980°C; NOTE: If steels are direct hardened, in general, a carburizing temperature of 950°C is not exceeded. For special procedures, for example under vacuum, higher temperatures (for example 1020 to 1050°C) are not unusual. Core hardening: 860 to 900°C; Case hardening: 780 to 820°C; Tempering: 150 to 200°C (as a guide, for 1 hour minimum).
  • Hardness, Brinell, HB 30 < 217; Hot working 1050-850; Normalizing 860-900; Operation of hardening - Oil 850-880; Soft annealing 680-720; Temper 540-680; Operation of hardening - Water 840-870

DIN 1.7030 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
600 — 1000 MPa
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Elongation, A
12 %
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Impact Energy
val1
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J
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Brinell Hardness (HB)
156 — 255
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Grain Size
val1
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  • 154 Cross References
  • 19 Composition
  • 56 Mechanical Properties
  • 3 Physical Properties
  • 6 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • 5 Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • - Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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