SAW (submerged arc welding) wires for creep resisting steels

Classification DIN EN ISO

24598-A-S S Z CrMo2VNb

Material No.


Classification AWS

A5.23 EB24


TÜV 03274, CE

Characteristics and application

Submerged arc welding wire for T24 creep resistant steel. The T24 alloy is a modified 2.25%Cr-1%Mo alloy with additions of Nb and V to improve high temperature creep performance. The alloy finds use for waterwalls in ultra-super-critical (USC) boilers in the power generating industry.

Base materials

For matching alloy 24, 2.25%Cr-1%Mo modified, creep resisting ferritic steels.
X7CrMoVTiB 10-10
ASTM: A213 grade T24

Typical analysis in %

C: 0,09
Si: 0,25
Mn: 0,55
Cr: 2,35
Mo: 1,00
V: 0,26
Nb: 0,04

Yield strength in Mpa


Tensile strength in Mpa


Elongation in %

4d/5d: ≥20/18

Typical heat treatment

Preheat temperature: Dependent on application either none or 150-200°C
Interpass temperature: max. 300°C
PWHT: Dependent on application either AW or 730-760°C

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