DIN 17744 Grade NiCr22Mo7Cu solution annealed (+AT)

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Description

The material NiCr22Mo7Cu with the material number 2.4619 is applied for corrosion-resistant construction components in the form of strips, sheets, tubes, bars, wires and forgings. It is a further development of the material NiCr22Mo6Cu (material number 2.4618) and has an excellent resistant to pitting, crevice and stress cracking corrosion. The alloy is of good weldability and possesses good resistance to intergranular corrosion in the welded condition. The low carbon content prevents sensitizing and its results, i.e. intergranular corrosion of the heat affected zone of the welding seams. The material is oustandingly resistant 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. Processing properties: Formability: good Weldability: good

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

8.3 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

211 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

20.0 °C

35 - 45 %

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100.0 °C

60 %

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200.0 °C

60 %

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300.0 °C

65 %

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400.0 °C

65 %

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500.0 °C

65 %

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600.0 °C

65 %

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Hardness, Brinell

20.0 °C

240 [-]

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Tensile strength

20.0 °C

585 - 620 MPa

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100.0 °C

640 MPa

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200.0 °C

590 MPa

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300.0 °C

570 MPa

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400.0 °C

550 MPa

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500.0 °C

530 MPa

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600.0 °C

500 MPa

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Yield strength Rp0.2

20.0 °C

205 - 240 MPa

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100.0 °C

270 MPa

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200.0 °C

230 MPa

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300.0 °C

210 MPa

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400.0 °C

190 MPa

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500.0 °C

180 MPa

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600.0 °C

170 MPa

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Yield strength Rp1.0

20.0 °C

225 - 260 MPa

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100.0 °C

290 MPa

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200.0 °C

260 MPa

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300.0 °C

240 MPa

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400.0 °C

220 MPa

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500.0 °C

210 MPa

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600.0 °C

200 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

441 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 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

1.15E-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

0.015 %

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Chromium

21 - 23.5 %

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Cobalt

5 %

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Copper

1.5 - 2.5 %

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Iron

18 - 21 %

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Manganese

1 %

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Molybdenum

6 - 8 %

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Nickel

35.95 %

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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

1.5 %

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