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GFC 81B2

LOW ALLOY FLUX CORED WIRE

IDENTIFICATION
GFC 81B2, E81T1-B2C

CLASSIFICATION
AWS/SFA 5.29: E81T1-B2C,
ASME – IIC/SFA-5.29-E81T1-B2C

DESCRIPTION
Tubular rutile flux-cored wire for single or multipass welding of 1.25 Cr - 0.50 Mo heat resistant steels used for steam pipes of boilers of thermal power plant and similar types of steels, with CO2 shielding gas. The good weldability in all positions, excellent bead appearance, less spatter, a fast freezing and easy to remove slag. Deposited welds arc of radiographic quality.

WELD METAL ANALYSIS (RANGE) %

C Mn Si S P Cr Mo
0.05 - 0.12 0.50 - 1.25 0.30 - 0.80 0.030 max 0.030 max 1.0 - 1.50 0.40 - 0.65

MECHANICAL PROPERTIES (RANGE)

TS (MPa) YS (MPa) EL (%) (L=4D)
560 min 490 min 19 min

After PWHT of 690 ± 14°C/ 1 hour. TYPICAL APPLICATIONS

Power Plant equipments, pipes and Cr-Mo steels having requirements of high creep resistance.

ALLOYED STEEL : ASTM, A335 Grade P11 and P12 or equivalent.

SHIELDING GAS : CO2

FLOW RATE : 14 - 20 l/min

PACKING PARAMETERS

Size (mm) Amps DC (+) Weight / Spool (kg)
1.2 120 - 250 15
1.6 180 - 350 15