Permodur 4841 +AT

Alternative and trade names
Permodur 4841, 1.4841, X15CrNiSi25-21
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Description

1.4841 (X15CrNiSi25-21) is a stainless heat-resistant Chrome-nickel steel with good oxidation resistance at high temperatures. It is also characterized by its good strength properties at high temperatures and shows an excellent chemical resistance at temperatures up to 1100°C.

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.

Ashby charts

Properties

General

PropertyValue

Density

7.9 g/cm³

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Dimension

PropertyValueComment

Diameter

160 mm

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max.

Mechanical

PropertyValue

Hardness, Brinell

223.0

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Tensile strength

550.0 - 750.0 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

200 °C

0.0000155 1/K

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for 20°C to the mentioned temperature

400 °C

0.000017 1/K

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for 20°C to the mentioned temperature

600 °C

0.0000175 1/K

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for 20°C to the mentioned temperature

800 °C

0.000018 1/K

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for 20°C to the mentioned temperature

1000 °C

0.000019 1/K

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for 20°C to the mentioned temperature

Specific heat capacity

500.0 J/(kg·K)

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Thermal conductivity

500 °C

15.0 - 19.0 W/(m·K)

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Electrical

PropertyValue

Electrical resistivity

9e-07 Ω·m

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Chemical properties

PropertyValue

Carbon

0.2

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Chromium

24.0 - 26.0 %

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Manganese

2.0

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Nickel

0.11

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Phosphorus

0.045

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Silicon

1.5 - 2.5 %

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Sulfur

0.015

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Technological properties

Property
Application areas

Apparatus construction for high temperature, Automotive industry, Chemical industry, Oil industry, Cement chain industry, Mechanical engineering, Furnace construction

Cold Forming

It is suitable for cold forming.

Corrosion properties

Corrosion resistance only slightly against oxidizing and resistant to reducing sulphurous gases. It is limited to temperatures below 650°C. Medium Corrosion resistance to carburizing (up to 900°C) and gases with Nitrogen and low Oxygen. (PREN= 24.0 - 29.3)

General machinability

Average

Heat Treatment

Solution annealing: 1050-1150°C (water, air) fast cooling

Hot forming

It is formable at 850-1100°C (Air).

Processing history

Solution Annealed

Welding

Good