DIN 17744 Grade NiCr22Mo6Cu

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Description

The material NiCr22Mo6Cu with the material number 2.4618 is similar to the material NiCr22Mo7Cu with regard to corrosion properties. It is less weldable and less resistant to corrosion attacks in the heat affected zone. The material is resistant to pitting, crevice and stress cracking corrosion. It behaves outstandingly to strongly corroding, chloride- and fluoride-polluted sulphuric and phosphoric acid. Application for plants for the production and processing of sulphuric, phosphoric and nitric acid. For components in flue-gas desulphurization and waste incineration plants, in the paper and cellulose industry and for the extraction of acid gas. In the new edition of the DIN 17744 : 2002-09, the material is not contained any more.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

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

PropertyTemperatureValue

Density

20.0 °C

8.36 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

192 GPa

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100.0 °C

205 GPa

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200.0 °C

199 GPa

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300.0 °C

192 GPa

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400.0 °C

186 GPa

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500.0 °C

180 GPa

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600.0 °C

173 GPa

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700.0 °C

167 GPa

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Elongation

100.0 °C

48 %

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200.0 °C

48 %

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300.0 °C

56 %

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400.0 °C

57 %

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500.0 °C

55 %

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600.0 °C

54 %

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Tensile strength

100.0 °C

670 MPa

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200.0 °C

630 MPa

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300.0 °C

620 MPa

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400.0 °C

605 MPa

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500.0 °C

595 MPa

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600.0 °C

580 MPa

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Yield strength Rp0.2

100.0 °C

360 MPa

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200.0 °C

330 MPa

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300.0 °C

290 MPa

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400.0 °C

280 MPa

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500.0 °C

275 MPa

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600.0 °C

270 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.43E-5 1/K

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200.0 °C

1.47E-5 1/K

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300.0 °C

1.5E-5 1/K

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400.0 °C

1.53E-5 1/K

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500.0 °C

1.57E-5 1/K

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600.0 °C

1.61E-5 1/K

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700.0 °C

1.65E-5 1/K

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Melting point

1400 °C

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Typical for Nickel Chromium Alloy

Specific heat capacity

20.0 °C

390 J/(kg·K)

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100.0 °C

452 J/(kg·K)

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200.0 °C

462 J/(kg·K)

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300.0 °C

471 J/(kg·K)

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400.0 °C

479 J/(kg·K)

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500.0 °C

487 J/(kg·K)

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600.0 °C

495 J/(kg·K)

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700.0 °C

503 J/(kg·K)

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Thermal conductivity

20.0 °C

10.1 W/(m·K)

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100.0 °C

12.6 W/(m·K)

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200.0 °C

14.3 W/(m·K)

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300.0 °C

16 W/(m·K)

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400.0 °C

17.7 W/(m·K)

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500.0 °C

19.3 W/(m·K)

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600.0 °C

21 W/(m·K)

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700.0 °C

22.6 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.12E-6 Ω·m

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100.0 °C

1.17E-6 Ω·m

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200.0 °C

1.19E-6 Ω·m

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300.0 °C

1.21E-6 Ω·m

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400.0 °C

1.23E-6 Ω·m

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500.0 °C

1.25E-6 Ω·m

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600.0 °C

1.26E-6 Ω·m

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700.0 °C

1.27E-6 Ω·m

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Chemical properties

PropertyValue

Carbon

0.05 %

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Chromium

21 - 23.5 %

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Cobalt

2.5 %

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Copper

1.5 - 2.5 %

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Iron

18 - 21 %

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Manganese

1 - 2 %

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Molybdenum

5.5 - 7.5 %

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Nickel

36.4 %

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Phosphorus

0.03 %

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Silicon

1 %

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Sulfur

0.015 %

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Tungsten

1 %

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