DIN 1.7378 Structural and constructional steels

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

Data updates

Latest Update: 2022-04
Total number of updates: 5
Update History
2021-09 2020-03 2016-02 2014-02

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DIN 1.7378 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.020
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
0.0015 – 0.0070
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.05 – 0.10
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
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
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

WB 533/2: 2013 / Heat-resistant 7CrMoVTiB10-10 steel, material No.1.7378; Seamless hollow body, seamless pipe

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DIN 1.7378 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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Dynamic Modulus of Elasticity
211 GPa
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Poisson Coefficient
val1
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DIN 1.7378 Heat Treatments

  • Quenching and tempering:
    Hardening: 980-1020°C, quenching in water;
    Tempering: 740-770°C, holding period 2 minutes/mm thickness, at least 60 minutes (Holding time starts when the temperature in the cross section is reached) and cooling in air;

    Stress relieving after welding: 740 ± 10°C, holding period 2 minutes/mm thickness, at least 60 minutes and cooling in air;

    Stress relieving after cold forming: 650-750°C, holding period 2 minutes/mm thickness, at least 60 minutes and cooling in air.
  • Quenching and tempering:
    Hardening: 980-1020°C, cooling in air for wt ≤ 16 mm, quenching in water for wt > 16 mm;
    Tempering: 730-760°C, holding period 2 minutes/mm thickness, at least 60 minutes and cooling in air;

    Stress relieving after welding: 720-760°C, holding period 2 minutes/mm thickness, at least 60 minutes and cooling in air;

    Stress relieving after cold forming: 650-750°C, holding period 2 min/mm thickness, at least 60 minutes and cooling in air.

DIN 1.7378 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
565 — 840 MPa
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Elongation, A
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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Vickers Hardness (HV)
val1
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DIN 1.7378 International Equivalent Materials

Showing 15 of 51 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
7CrMoVTiB10-10
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
ASRO
COUNTRY / PRODUCER
Romania
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
VdTÜV
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
ASRO
COUNTRY / PRODUCER
Romania
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Identical
MATERIAL
7CrMoVTiB10-10
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Identical
MATERIAL
1.7378
STANDARD
MSZ
COUNTRY / PRODUCER
Hungary
EQUIVALENCE CATEGORY
Identical

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 51Cross References
  • 36Composition
  • 100Mechanical Properties
  • 41Physical Properties
  • 3Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 1Creep
  • 7Joints
  • -Coatings
  • 57Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 40Total Suppliers