DIN 10SPb20 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2024-12

Total number of updates: 3

Update History

2018-10 2018-09

This material has 355 properties — only a subset is shown here.

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DIN 10SPb20 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.07 – 0.13

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

0.70 – 1.10

UNIT

CAS NUMBER

7439-96-5

CRITERIA

Other

VALUE

Elements such as Te, Bi etc., may only be added by the manufacturer for improving machinability

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-92-1

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

EN 10087: 1998 / Free-cutting steels - Technical delivery conditions for semi-finished products, hot-rolled bars and rods

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DIN 10SPb20 Physical Properties

Temperature

0 - 30°C

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

val1

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Thermal Conductivity

47 W/(m∙°C)

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Heat Capacity

val1 J/(kg∙°C)

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Melting Temperature

val1 °C

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This material has 355 properties — only a subset is shown here.

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DIN 10SPb20 Heat Treatments

Carburizing: 880-980°C. The carburizing temperature will depend on the chemical composition of the steel, the mass of the product, and the carburizing medium. If the steels are direct hardened, in general a temperature of 950°C is not exceeded. For special procedures, for example under vacuum, higher temperatures, for example 1020°C to 1050°C, are not unusual;
Direct and simple hardening: 830-870°C;
Double hardening: Core-hardening: 880-920°C and case-hardening: 780-820°C;
Quenching agent: water, oil, emulsion (depends, for example, on the shape of the products, the cooling conditions and the quantity of furnace filling);
Tempering: 150-200°C (1h minimum).
Carburizing: 880-980°C. The carburizing temperature will depend on the chemical composition of the steel, the mass of the product, and the carburizing medium. If the steels are direct hardened, in general, a temperature of 950°C is not exceeded. For special procedures, for example under vacuum, higher temperatures (for example 1 020 to 1 050°C) are not unusual;
Core-hardening: 880-920°C. When applying the single quench method, the steel is to be quenched from the carburizing temperature or a lower temperature. The lower hardening temperatures are in each case to be preferred, in particular when there is risk of distortion; Case-hardening: 780-820°C;
Quenching agent: water, oil, emulsion. The kind of quenching agent depends on, for example, the shape of the products, the cooling conditions and the amount of furnace filling;
Tempering: 150-200°C (1 h minimum).

DIN 10SPb20 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

350 — 780 MPa

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Elongation, A

7 %

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Brinell Hardness (HB)

105 — 159

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Grain Size

val1

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110 Cross References

37 Composition
101 Mechanical Properties
8 Physical Properties
3 Heat Treatment
- Metallography
- Machinability

20 Stress-Strain
- Formability
- Fatigue
- Fracture
- Creep

- Joints
- Coatings
22 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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