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Acidur 4542

Alternative und Handelsbezeichungen
1.4542, Type 630, SUS 630
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Beschreibung

Acidur 4542 is a hardenable stainless steel with high yield strength, high wear resistance and corrosion resistance. As a remelted variant (ERU/VAR) this steel is used in the aerospace industry.

Eigenschaften

Allgemein

Density ρ

7.8 g/cm³ at 20 °C

Elektrisch

Electrical resistivity ρel

7.1E-7 Ω·m at 20 °C

Mechanisch

Elastic modulus E

200 GPa at 20 °C

Grafik anzeigen

Hardness, Rockwell C HRC

38 [-] at 20 °C

max

Tensile strength Rm

1200 MPa at 20 °C

max

Thermisch

Coefficient of thermal expansion α

1.09E-5 1/K at 100 °C

Grafik anzeigen

Specific heat capacity cp

500 J/(kg·K) at 20 °C

Thermal conductivity λ

16 W/(m·K) at 20 °C

Chemische Eigenschaften

Element

Gew. %

Kommentar

Fe

-

balance

Nb

-

5C

Cr

15 - 17 %

Ni

3 - 5 %

Cu

3 - 5 %

Mehr

Technische Eigenschaften

Application areas

Aerospace, plant construction, chemical industry, wood industry, mechanical engineering, petroleum industry, paper industry, sports industry, shipbuilding industry

Corrosion properties

(PREN = 15.0 - 18.9) Thanks to the good combination of high corrosion resistance and good mechanical properties, 1.4542 is suitable for use in maritime environments. In standing seawater, however, 1.4542 is susceptible to crevice corrosion. If the application in standing seawater cannot be excluded, an additional protection (e.g. paint) must be applied.

General machinability

1.4542 can be machined in solution annealed and hardened condition. The machinability of 1.4542 depends on the hardness.

Welding

To weld 1.4542, the condition of the base material must be taken into account. The copper in the material is present in a stabelized form and therefore does not promote a tendency to hot cracking. In addition to setting of optimum welding conditions, care must be taken to avoid undercuts or other welding defects that lead to the formation of a notch. After welding, the material must be solution annealed again within a very short time with subsequent ageing to prevent stress cracking.

Diese Materialdaten wurden von Deutsche Edelstahlwerke Specialty Steel (DEW) zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
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