EQUIVALENT NORM: AWS A5.29 E81T1-B2 JIS Z3318 YF ICM-C

FEATURES AND DESCRIPTIONS:

a.GSF.81T1-B2 is CO2gas shielded flux-cored welding wire with all position welding for 1-1.25Cr-0.5Mo steel .It shows a very good welding performance and has excellent mechanical properties.

b.Suitable for welding Cr-Mo pipes and creep-resisting Cr-Mo steel.

c.Welded pieces should be preheated at the temperature of 150-300℃before welding , and should be heat-treated at 690±10℃ after welding.

INSTRUCTIONS:

a.Using CO2 as shielding gas,and its purity must be above 99.98%. 

b.Windshield must be set up in the welding zone,due to gas porosity may be caused by strong wind.

Chemical Composition of Deposited Metal(%)

C

Mn

Si

S

P

Cr

Mo

Standard

≤0.12

≤1.25

≤0.80

≤0.03

≤0.03

1.00-1.50

0.4-0.65

Typical

0.1

0.9

0.4

0

0

1.2

0.5

Mechanical Proper ties of Deposited Metal

Tensile strengthбb(MPa)

Yield Poingб0.2(MPa)

Elongation δ5(%)

Impact V-Notch（J）

Shielding gas

10oC

Standard

550-690

≥470

≥19

-----

CO2

Typical

640

570

20

29

Specification &Recommended Current Range(DC+)

Diameter(mm)

1.2

Voltage range(volt)

22-23

Current Range（A）

160-300

Gas Flow Rate

20-25

Wire Extention

15-25