Material 1.4935

High-temperature resisting steel and alloy

The material 1.4935 is a highly heat-resistant martensitic steel. This steel can be used up to a maximum temperature of about 650 °C / 1202 °F. Typical apllication for the turbine is 1.4935.

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1.4935

Standards

HDIN / EN US-Standard AFNOR UNI JIS request
X20CrMoWV12-1 AISI 422 UNS S42200 request

Material Category: High-temperature resisting steel and alloy

Chemical Composition

C % Si %  Mn % P % S % Cr % Mo % Ni % V % W %
0,17 - 0,24 0,10 - 0,50 0,30 - 0,80 max 0,025 max 0,015 11,00 - 12,50 0,80 - 1,20 0,30 - 0,80 0,20 - 0,35 0,40 - 0,60

 

Mechanical Properties

vergütet
0,2% Dehngrenze
(Rp0,2)		 Zugfestigkeit
(Rm)		 Bruchdehnung
(A 5,65)		 Kerbschlagarbeit
(DVM)		 Zeitstandfestigkeit
1.000 h		 Zeitstandfestigkeit
10.000 h		 Zeitstandfestigkeit
100.000 h		 Warmfestigkeit bei Temperatur
              ~ 580 °C  
>= 590 N/mm² 780 - 930 N/mm² >= 14 % >= 34Joule         ~ 20 °C
>= 539 N/mm²               ~ 100 °C
>= 490 N/mm²               ~ 200 °C
>= 441 N/mm²               ~ 300 °C
>= 373 N/mm²               ~ 400 °C
>= 216 N/mm²               ~ 500 °C
>= 137 N/mm²       ~ 275 N/mm² ~ 210 N/mm² ~ 140 N/mm²   ~ 550 °C
        ~ 157 N/mm² ~ 108 N/mm² ~ 59 N/mm²   ~ 600 °C

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