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Alloy 602CA 
2.4633 – N06025

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Material description

The material 2.4633 is a high-carbon nickel-chromium-iron alloy with added microalloying elements titanium, zirconium, aluminium and yttrium.

2.4633 has excellent high-temperature creep values and outstanding fatigue strength in HCF and LCF mode. In addition, the material 2.4633 (Alloy 602CA) has exceptional oxidation resistance at high temperatures.

AN OVERVIEW OF THE PROPERTIES OF 2.4633:

  • Excellent fatigue strength (in HCF and LCF mode)
  • Excellent high-temperature creep values
  • Exceptional resistance to oxidation

Applications

  • Chemical and petrochemical industry
  • Production of hydrogen
  • Automotive industry (e.g. glow plugs, exhaust systems)
  • Industrial furnace construction

Material data

Material no.: 2.4633
Name: Alloy 602CA
UNS no.: N06025
ASTM: B166 / B564
VdTÜV: 540
Other: DIN 17742/17752
Material type: High-temperature alloy
Data sheet

Chemical composition in %

ASTM B166/564VdTÜV Material sheet 540
NiRestRest
Cr24,0 – 26,024,0 – 26,0
Fe8,0 – 11,08,0 – 11,0
Mn, max.0,150,1
Al1,8 – 2,41,8 – 2,4
C0,15 – 0,250,15 – 0,25
Cu, max.0,10,1
Si, max.0,50,5
S, max.0,0100,010
Ti0,1 – 0,20,1 – 0,2
P, max.0,0200,020
Zr0,01 – 0,100,01 – 0,10
Y0,05 – 0,120,05 – 0,12

Mechanical properties

solution annealedBar
D ≤ 102 mm
ASTM B166		Moulded steel | bar | forging
D ≤ 100 mm
Rm (MPa)≥ 680≥ 675
Rp 0,2 (MPa)≥ 270≥ 270
Rp 1,0 (MPa)≥ 310
A (%)≥ 30≥ 30
Av (J)l ≥ 55, q ≥ 30

Mechanical properties

solution annealedForging
D ≤ 102 mm | D < 102 ≤ 305 mm
ASTM B564
Rm (MPa)≥ 680 | ≥ 580
Rp 0,2 (MPa)≥ 270
Rp 1,0 (MPa)
A (%)≥ 30 | ≥ 15
Av (J)

The specified values are non-binding guide values.

Data sheet

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