Description & applications

• Seamless cored copper coated tubular wire for gas shielded flux cored arc welding

• 9Cr-1Mo deposit modified with niobium and vanadium additions

• Tightly controlled weld metal chemistry provides strength, toughness, fatigue life, oxidation resistance and corrosion resistance at elevated temperatures

• Enhanced productivity, improved weldability, better wetting properties compared to solid wires

• Excellent weld metal quality and X-ray soundness

• HDM < 4ml/100g deposited metal on the whole parameter box


FCW B P91 is designed to weld to weld 9CrMo modified creep resisting steels (P91/T91) with small additions of niobium, vanadium and nitrogen to give improved long term creep properties


ASME IIC SFA-5.29 EN ISO 17634-B
E90T5-G H4 T69T5-0G-9C1MV-H5

Typical weld metal composition (%)

C Mn Si Cr Ni Mo Nb V N S P
0.1 0.7 0.2 9.2 0.8 1.0 0.05 0.2 0.03 0.008 0.008

All weld metal mechanical properties

Rm (MPa) Rp0.2 (MPa) A5 (%) KCV
820 750 17 20°C: 120 J PWHT 4h/ 750°C

Shielding gas

M12 Ar + 1-3 % CO2

Operating conditions

Diameter [mm] Voltage [V] Stick out [mm] Current I [A] Current type
1.2 15-35 12-25 110-350 DC(+) or pulsed
1.6 15-35 15-25 160-470 DC(+) or pulsed

Welding positions

EN ISO 6947: PA, PB

ASME IX: 1G, 1F, 2F

Packings & Diameters

Diameters [mm] 1.2 - 1.6
Packing(s) Spool BS300
Weight [Kg] 15
Description -
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