Durapur 3505

Alternative and trade names
Durapur 3505, 1.3505, 100Cr6
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Description

1.3505 (100Cr6) is a bearing steel suitable for the manufacture of ball bearings, roller oil bearings and needle bearings. Durapur 3505 also used in mechanical engineering for components subject to wear, e.g. for pump shafts and for components in automobile injection systems. For this purpose, it is partially hardened on the surface.

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

7.8 g/cm³

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Mechanical

PropertyValueComment

Elastic modulus

210 GPa

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Hardness, Brinell

207.0 - 300.0 [-]

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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

460.0 J/(kg·K)

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Thermal conductivity

33 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

1.35 - 1.6 %

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Manganese

0.25 - 0.45 %

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Molybdenum

0.1

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Phosphorus

0.025

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Silicon

0.15 - 0.35000000000000003 %

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Sulfur

0.015

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Technological properties

Property
Application areas

It is mainly used for the manufacture of ball bearings, roller oil bearings and needle bearings. Also used in mechanical engineering for components subject to wear, e.g. for pump shafts and for components in Automobile injection systems.

Heat Treatment

Normalizing 870-900°C (Air), Soft annealing: 750-800°C (Oven), Stress Relieving: 600-650°C (Oven, Air), Quenching: 800-830°C (Water, Oil, Polymer) or 830-870°C (Oil, Polymer), Tempering: 150-180°C (Air)

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.