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Product Description

 Description: HJ251 is a fused type low manganese-oxide flux with jadestone granule of yellow color,about 10-60 mesh in size.It can be used on AC or DC power source. It provides good welding usability.

Applycation:This flux primarily used for welding of pearlitic heat resistant steel turbine rotors with Cr-MO wires.

Guidelines For Usage:

1.Dry the flux at 300~350°C for 2 hours before use.

2.Completely remove rust, oil and dirt from the groove surface prior to welding.

Typical Flux Composition Range (%)

SiO2+Al2O3
CaF2+CaO+MgO
S
P
36-45
40-53
≤0.05
≤0.08

Typical Chemical Properties of Weld metal: (GB/T 12470-03 F5011-HI0Mn2)

Test Item
σb
σs
δ5
AKV(J)
(MPa)
(MPa)
(%)
0°C
Standard Value
≥380
480-650
≥22
≥27
Test value
414
530
30
115

Packing: 25kg/Kraft paper bag

 

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