DIN 17212 Grade 38Cr4 quenched and tempered (+QT)

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Description

The in the quenched and tempered condition flame and induction hardenable alloyed 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

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value	Comment
Density	23.0 °C	7.8 - 7.9 g/cm³ Show Material materials with Density of 7.8 - 7.9 g/cm³	Typical for Chromium Steel

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	200 - 215 GPa Show Material materials with Elastic modulus of 200 - 215 GPa	Typical for Chromium Steel
Elongation	20.0 °C	11 - 14 % Show Material materials with Elongation of 11 - 14 %
Hardness, Rockwell F	20.0 °C	53 [-] Show Material materials with Hardness, Rockwell F of 53 [-]
Poisson's ratio	23.0 °C	0.29 [-] Show Material materials with Poisson's ratio of 0.29 [-]	Typical for Chromium Steel
Reduction of area	20.0 °C	40 - 50 % Show Material materials with Reduction of area of 40 - 50 %
Tensile strength	20.0 °C	740 - 1130 MPa Show Material materials with Tensile strength of 740 - 1130 MPa
Yield strength	20.0 °C	510 - 740 MPa Show Material materials with Yield strength of 510 - 740 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	9.4E-6 - 1.5E-5 1/K Show Material materials with Coefficient of thermal expansion of 9.4E-6 - 1.5E-5 1/K	Typical for Chromium Steel
Melting point		1382 - 1529 °C Show Material materials with Melting point of 1382 - 1529 °C	Typical for Chromium Steel
Specific heat capacity	23.0 °C	440 - 494 J/(kg·K) Show Material materials with Specific heat capacity of 440 - 494 J/(kg·K)	Typical for Chromium Steel
Thermal conductivity	23.0 °C	23 - 50 W/(m·K) Show Material materials with Thermal conductivity of 23 - 50 W/(m·K)	Typical for Chromium Steel

Chemical properties

Property	Value
Carbon	0.34 - 0.4 % Show Material materials with Carbon of 0.34 - 0.4 %
Chromium	0.9 - 1.2 % Show Material materials with Chromium of 0.9 - 1.2 %
Manganese	0.6 - 0.9 % Show Material materials with Manganese of 0.6 - 0.9 %
Phosphorus	0.03 % Show Material materials with Phosphorus of 0.03 %
Silicon	0.15 - 0.4 % Show Material materials with Silicon of 0.15 - 0.4 %
Sulfur	0.035 % Show Material materials with Sulfur of 0.035 %