DIN 1.4903 Structural and constructional steels

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

Data updates

Latest Update: 2024-10
Total number of updates: 24
Update History

This material has 994 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

DIN 1.4903 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.040
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.08 – 0.12
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
8.0 – 9.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
Ni
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
V
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-62-2

EN 10222-2: 2017 / Steel forgings for pressure purposes - Part 2: Ferritic and martensitic steels with specified elevated temperature properties

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

DIN 1.4903 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 218 GPa
Unlock full details
Full data available with free access View Complete Material Data
Thermal Conductivity
val1
Full data available with free access View Complete Material Data
W/(m∙°C)
Unlock full details
Full data available with free access View Complete Material Data
Electrical Resistivity
val1
Full data available with free access View Complete Material Data
Ω∙mm²/m
Unlock full details
Full data available with free access View Complete Material Data
Density
val1
Full data available with free access View Complete Material Data
kg/dm³
Unlock full details
Full data available with free access View Complete Material Data
Dynamic Modulus of Elasticity
val1
Full data available with free access View Complete Material Data
GPa
Unlock full details
Full data available with free access View Complete Material Data
Electrical Conductivity
val1
Full data available with free access View Complete Material Data
S/m
Unlock full details
Full data available with free access View Complete Material Data
Heat Capacity
val1
Full data available with free access View Complete Material Data
J/(kg∙°C)
Unlock full details
Full data available with free access View Complete Material Data
Poisson Coefficient
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data

This material has 994 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

DIN 1.4903 Heat Treatments

  • Quenching and tempering: Hardened at 1040-1080°C, quenched in oil (for wt < 80 mm can be cooled in air or in controlled atmosphere).
    Tempered at 750-780°C, held for 2 min per mm thickness, minimum 60 min, cooled in air.
    Tempering after welding: heated at 740 to 770°C, held for 2 min per mm thickness, minimum 60 min, cooled in air.
  • Hardening and tempering:
    Hardening: 1040-1080°C, cooling in air (For wt > 80 mm cooling can be carried out in oil or in spray water); Tempering: 750-780°C, holding period min. 60 minutes (Holding time starts when the temperature in the cross section is reached), cooling in air;

    Tempering after welding: 740-770°C, holding period for wt ≤ 8 mm is 30 minutes, for 8 < wt ≤ 30 mm is 60 minutes and for wt > 30 mm is 2 min/mm, cooling in air;

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

DIN 1.4903 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
520 — 850 MPa
Unlock full details
Full data available with free access View Complete Material Data
Elongation, A
val1
Full data available with free access View Complete Material Data
%
Unlock full details
Full data available with free access View Complete Material Data
Reduction of Area
val1
Full data available with free access View Complete Material Data
%
Unlock full details
Full data available with free access View Complete Material Data
Yield Strength, Rp0.2
val1
Full data available with free access View Complete Material Data
MPa
Unlock full details
Full data available with free access View Complete Material Data
Impact Energy
val1
Full data available with free access View Complete Material Data
J
Unlock full details
Full data available with free access View Complete Material Data

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

DIN 1.4903 International Equivalent Materials

Showing 15 of 125 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
X10CrMoVNb9-1
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Official
MATERIAL
X10CrMoVNb9-1
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
1.4903
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
10H9MFB
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Official
MATERIAL
10H9MFB-Sh
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Official
MATERIAL
1.4903
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Official
MATERIAL
X10CrMoVNb9-1
STANDARD
SANS
COUNTRY / PRODUCER
South Africa
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SA-387 Grade 91 Type 1
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 336 Grade F5A
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 182 F 5a
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Pyrodur 4903
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.4903
STANDARD
SANS
COUNTRY / PRODUCER
South Africa
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
J82090
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
K90901
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
J84090
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

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

Need the full list of 125 international equivalents?

See all 125 equivalent grades with detailed mapping by standard, producer and equivalence category.

View All Equivalents ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book A Demo

  • 125Cross References
  • 106Composition
  • 333Mechanical Properties
  • 82Physical Properties
  • 8Heat Treatment
  • 8Metallography
  • -Machinability
  • 43Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 5Creep
  • 33Joints
  • -Coatings
  • 174Dimensions
  • -Tribology
  • -Corrosion
  • 1Ageing
  • -Weatherability
  • -Irradiation
  • 76Total Suppliers