CEWELD


ER 90S-B9 (P91) Tig GMAW-GTAW Solid wires




ER 90S-B9 (P91) Tig

 
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: ER90S-B9
EN ISO 
21952-A: W CrMo91
DIN: W.Nr. 
1.4903
DIN 
8575: SG CrMoVNb91
SUITABLE FOR 

A 213 T91 (seamless tubes), A 335 P91 (seamless tubes), A 387 Gr91 (plates), A 182 / A336 F91 (forgings), X10CrMoVNb 91, 1503 Gr91, AFNOR NF A-49213/A-49219 Gr TU Z 10, CDVNb 09-01

APPROVALS 
CE approved
WELDING POSITIONS: 
WELD METAL ANALYSIS % (TYPICAL)

C

Mn

Si

S

P

Cr

Ni

Mo

V

Al

Cu

Other

 

0.1

0.80

0.32

0.008

0.008

9.0

0.6

1.0

0.2

0.02

0.10

< 0.50

 
MECHANICAL PROPERTIES

Heat

RP0,2

Rm

A5

A4

Impact Energy (J) ISO-V

Hardness

Treatment

(N/mm2)

(N/mm2)

(%)

(%)

20°C

-20°C

HV

Min

520

620

16

17

   

265

SR

700

800

22

19

220

   
SR: stress relieved PWHT 750ºC-760ºC / 2-3Hr
REDRYING TEMPERATURE 
not required
WELDING PARAMETERS / PACKING

Welding Parameters

Packing

D (mm)

Current (A)

single

master carton

1,6 x 1000

50-90

5 kg cartons

25 kg cartons

2.4 x 1000

110-180

5 kg cartons

25 kg cartons

3.2 x 1000

150-250

5 kg cartons

25 kg cartons







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