DIN X 12 CrMo 9 1 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2018-08

Total number of updates: 3

Update History

2018-06 2018-04

This material has 664 properties — only a subset is shown here.

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DIN X 12 CrMo 9 1 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.07 – 0.15

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

8.0 – 10.0

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.30 – 0.60

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

DIN 17176: 1990 / Seamless circular steel tubes for hydrogen service at elevated temperatures and pressures; technical delivery conditions

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DIN X 12 CrMo 9 1 Physical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Dynamic Modulus of Elasticity

val1 GPa

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Density

val1 kg/dm³

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Poisson Coefficient

val1

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Coefficient of Thermal Expansion (CTE)

val1 10^-6/°C

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Thermal Conductivity

20.7 W/(m∙°C)

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Heat Capacity

val1 J/(kg∙°C)

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Electrical Resistivity

0.503 Ω∙mm²/m

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Electrical Conductivity

val1 S/m

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This material has 664 properties — only a subset is shown here.

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DIN X 12 CrMo 9 1 Heat Treatments

Heat treatment (G): Hot forming at 1100 - 850°C. In the process, the temperature may drop to 750°C. Soft annealing: Soaking at 920 - 980°C, cooling in a furnace for 2 - 4h to 700 - 720°C, followed by cooling in air. Or, soaking at 950 - 980°C, retarded cooling in a furnace to 550°C, followed by cooling in air. Heat treatment (V): Hot forming at 1100 - 850°C. In the process, the temperature may drop to 750°C. Hardening at 960 - 1000°C. Tempering at 730 - 800°C. Tempering should immediately follow quench hardening treatment since hardened steel is susceptible to stress corrosion cracking.

DIN X 12 CrMo 9 1 Mechanical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Yield Strength, Rp0.2

210 MPa

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Tensile Strength

460 — 740 MPa

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Elongation, A

20 %

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Impact Energy

val1 J

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48 Cross References

7 Composition
45 Mechanical Properties
54 Physical Properties
2 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
- Formability
- Fatigue
- Fracture
2 Creep

15 Joints
- Coatings
- Dimensions
- Tribology

445 Corrosion
- Ageing
- Weatherability
- Irradiation

46 Total Suppliers