GM 90S-B9

SOLID WIRE FOR CREEP RESISTING STEELS

IDENTIFICATION : ER 90S-B9
CLASSIFICATION :AWS/SFA- 5.28: ER 90S-B9

DESCRIPTION :

A non-coppered filler wire of high purity to match creep resisting steels of type 9CrMo modified with controlled additions of niobium, vanadium & nitrogen. Deposited weld metal meets X-ray quality.

COMPOSITION OF THE WIRE (RANGE) %

C Mn Si S P Cr
0.07 -0.13 1.25 max 0.15-0.30 0.010 max 0.010 max 8.0-9.5
Mo Cu Nb V N
0.8-1.10 0.20 max 0.02-0.10 0.15-0.25 0.03-0.07

MECHANICAL PROPERTIES (RANGE)(PWHT 745 ± 15°C/1 hr.)

Ultimate Tensile Strength MPa Yield Stress MPa Elongation(%)(L=4d)
620 min 410 min 16 min

TYPICAL USES :

These materials are used in components such as, headers, main steam piping and turbine rotors in power generating plant. Applications are also anticipated in oil refinery & petrochemical plant. Service temperature is normally 500-600°C, higher temperatures upto 650°C may be limited by parent HAZ properties.

PREHEAT AND INTERPASS

TEMPERATURE :150-260°C

SHIELDING GAS:Argon + 2 to 5% CO2

Materials to be welded:

ASTM-ASME:A213 T91(tube),A387 Grade 91(plate), A335 P91(pipe), A182, A336 F91(forgings).

DIN:X10CrMoVNb9 1 1.4903

PACKING DATA

SIZE (MM) PACKING PER Spool, Kg.
0.8 12.5
1.2 12.5
1.6 12.5