HARDFACE 19 9 6-O

CLASSIFICATION

DIN 8555: MSG31-GF-300-C
EN 14700: T Cu1

DESCRIPTION

• Copper-aluminium hardfacing alloy with additions of Fe, Ni and Mn to improve the mechanical properties.
• Good resistance to abrasion and corrosion.
• Temperature resistance up to 300°C.

APPLICATIONS

Used for pistons for injection of aluminium under pressure, valve seats, and cylinders for paper-making machinery. Suited to surfacing of iron and copper-base materials.

TYPICAL ALL-WELD METAL ANALYSIS AlFeMnNiCu

12.00

3.50

0.50

0.40

Base

WELD DEPOSIT MECHANICAL PROPERTIES

 Hardness 3 layers as welded: 320 HB

SHIELDING GAS ISO 14175: I1 (pure argon)
I3 (Ar + 30% He)  OPERATING CONDITIONS Current typeGas flow rateRecovery

DC(+) continuous or pulsed

12 - 20 l/min.

90 %

Diameter [mm]Intensity [A]             Voltage [V]      Stick-out [mm]RangePulsedContinuousRangeOptimum

1.2	150 - 320	22 - 25	27 - 31	10 - 20	15
1.6	200 - 350	22 - 25	27 - 31	10 - 20	15

Stringer or weaved beads
Can be welded gun leading or gun trailing
The use of pulsed current is recommended for improved wetting and bead appearance
Higher currents and voltages can be used, but cause increased element burn-off (particularly Al) and dilution, leading to lower hardness levels. Use of preheat and working temperatures up to 300°C will help forestall cracking.

WELDING POSITIONS

EN ISO 6947 : PA, PB
ASME IX: 1G, 1F, 2F

PACKAGING Diameter1.2 mm                                            1.6 mm

Spool type	EN ISO 544: BS300	EN ISO 544: BS300	EN ISO 544: B450
Weight	15 kg	15 kg	25 kg

Other packaging: please consult us