DIN 17212 Grade Cf70 quenched and tempered (+QT)

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Description

The in the quenched and tempered condition flame and induction hardenable unalloyed special steel has a, compared to the common quenched and tempered steel, constricted range of the C content and a lower maximum value of the P content. The steel is suitable for flash welding, if prooved conditions will be kept. For better machining the steel can be soft annealed. In this soft annealed and also in the normalised condition the material is unrestrained cold shearable. A maximum value for nonmetallic inclusions by arrangement. Delivery forms: - semi-finished product, rolled or forged - steel bars, hot-rolled or hot forged - wire, hot-rolled - sheet, strip and wide flats, hot-rolled - tubes, coils, seamless - open die and drop forgings Application: car industry, engine construction, mechanical engineering

Related Standards

Los datos sobre este material han sido proporcionados por WIAM.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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Propiedades

General

PropertyTemperatureValueComment

Densidad

23.0 °C

7.8 g/cm³

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Typical for Steel

Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.3 [-]

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Typical for Steel

Elongación

20.0 °C

11 - 13 %

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Estricción

20.0 °C

25 - 30 %

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Hardness, Rockwell F

20.0 °C

60 [-]

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Límite elástico

20.0 °C

480 - 560 MPa

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Módulo elástico

23.0 °C

190 - 210 GPa

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Typical for Steel

Resistencia a la tracción

20.0 °C

740 - 930 MPa

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Chemical properties

PropertyValue

Azufre

0.035 %

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Carbono

0.68 - 0.75 %

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Fósforo

0.03 %

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Manganeso

0.2 - 0.35 %

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Silicona

0.15 - 0.35 %

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