Type
Medium alloyed, high-strength creep resistant 9% Cromium alloy.
classification
AWS
A 5.28: ER 90S-B91
EN ISO
21952-A: W CrMo91
W.Nr.
1.4903
Applications

Designed for welding equivalent type 91~ 9% Cr Steels modified with small aditions of Niobium, Vanadium and Nitrogen to offer improved long term creep properties. This alloy is specialy intended for high integrity structural service at elevated temperature such as: Headers, main steam piping and turbine casings, gasification plants etc.

Type
Medium alloyed, high-strength creep resistant 9% Cromium alloy.
Applications

Designed for welding equivalent type 91~ 9% Cr Steels modified with small aditions of Niobium, Vanadium and Nitrogen to offer improved long term creep properties. This alloy is specialy intended for high integrity structural service at elevated temperature such as: Headers, main steam piping and turbine casings, gasification plants etc.

Properties

Filler metal specifically intended for high integrity structural service at elevated temperature so the minor alloy additions responsible for its creep strenghth are kept above the minimum considered necessary to ensure satifactory performance.

Classification
AWS
A 5.28: ER 90S-B91
EN ISO
21952-A: W CrMo91
F-nr
6
FM
3
W.Nr.
1.4903
Suitable for

For matching P91, 9%Cr1%Mo modified, creep resisting martensitic steels

A 213 T91, A335 P91, A387 Gr91, A 182/A336 F91, X10CrMoVNb9-1, 1503 Gr91, AFNOR NF A-49213/A-49219 Gr TU Z 10, CDVNb 09-01

Approvals
CE
Welding positions
PA
PB
PC
PD
PE
PF
PG
Redrying
Not required
Gas acc. EN ISO 14175
I1
Analysis
C Si Mn P S Cr Ni Mo Ti V Cu Al Zr Other
0.1 0.32 0.52 9.15 0.65 0.95 0.22 0.04
Mechanical Properties
Heat
Treatment		 RP0,2
(MPa)		 Rm
(MPa)		 A5
(%)		 Impact Energy (J) ISO-V Hardness
RT
730°C- 760°C 3h 520 750 19 200 HRc
Product sheet
declaration of performance
SDS
Product sheet
Ask quotation
SDS