Durapur 3520

Alternative and trade names
Durapur 3520, 1.3520, 100CrMnSi6-4
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Description

1.3520 (100CrMnSi6-4) is used in the rolling bearing industry for balls and rollers up to 90mm in diameter, as well as rings up to a finished wall thickness of 50 mm.

Related Standards

Equivalent Materials

This material data has been provided by Deutsche Edelstahlwerke Specialty Steel (DEW).

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

PropertyValue

Density

7.6 g/cm³

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Mechanical

PropertyValueComment

Elastic modulus

210 GPa

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Hardness, Brinell

217.0 - 375.0 [-]

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Depending on the delivery condition

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100 °C

0.0000115 1/K

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for 20°C to the mentioned temperature

200 °C

0.0000125 1/K

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for 20°C to the mentioned temperature

300 °C

0.0000133 1/K

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for 20°C to the mentioned temperature

400 °C

0.0000139 1/K

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for 20°C to the mentioned temperature

Specific heat capacity

470.0 J/(kg·K)

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Thermal conductivity

42.6 W/(m·K)

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Electrical

PropertyValue

Electrical resistivity

1.9e-07 Ω·m

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Chemical properties

PropertyValue

Carbon

0.93 - 1.05 %

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Chromium

1.4 - 1.65 %

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Manganese

1.0 - 1.2 %

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Molybdenum

0.1

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Phosphorus

0.025

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Silicon

0.45 - 0.75 %

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Sulfur

0.015

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Technological properties

Property
Application areas

It is used in the rolling bearing industry for balls, rollers and rings.

Heat Treatment

Normalizing 860-890°C (Air), Soft annealing: 740-790°C, Stress Relieving: 600-650°C (Air), Quenching: 830-870°C (Oil, Polymer)

Hot forming

It is formable at 850-1100°C should then cooled more slowly or in still air.

Processing history

Quenched and Tempered

Welding

It is not weldable.