TIG welding rods for creep resisting steels

Classification DIN EN ISO

21952-A W ZCrMoWVNb 9 0,5 1,5

Material No.


Classification AWS

A5.28 ER90S-G



Characteristics and application

TIG/GTAW wire for high temperature, creep resistant, modified 9%Cr-1%Mo martensitic steel (T92/P92). T92/P92 steel is commonly used at service temperatures up to 620°C. V, Nb and N additions provide this ‘creep strength enhanced ferritic’ (CSEF) alloy with improved high temperature creep resistance compared to standard CrMo creep resistant alloys. Alloy T92/P92 is widely used in the power generating industry for fossil fuel ultra-super-critical (USC) power plant boilers and turbines; the alloy is also finding applications in the chemical and oil and gas industries.

Base materials

For matching P92, 9%Cr-1.7%W-0.5%Mo, creep resisting martensitic steels.
X10CrWMoVNb 9 2
ASTM: A182 grade F92, A213 grade T92, A335 grade P92, A387 grade 92

Typical analysis in %

C: 0,10
Si: 0,35
Mn: 0,44
Cr: 8,80
Ni: 0,50
Mo: 0,40
V: 0,20
W: 1,60
Nb: 0,05

Yield strength in Mpa

≥ 540

Tensile strength in Mpa

≥ 620

Elongation in %

4d/5d: ≥17

Charpy-V-Value (ISO-V) in J

RT ≥ 47

Typical heat treatment

Preheat temperature: 200°C
Interpass temperature: max. 300°C
PWHT: 760°C

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