Arc Welding Service

CATEGORY

TYPE

Composite spray wire for bond coatings equivalent to Metcoloy 405

APPLICATIONS

SP 80/20 NiAl is widely used as a bond coat for subsequent thermal spray layers and as a one step build up material for dimensional restoration of aircraft engines.

PROPERTIES

SP 80/20 NiAl is a cored wire specifically designed for both, arc spraying and flame spraying. It is selfbonding to most materials and requires minimal surface preparation. Bond strengths in excess of 9000 psi can be achieved on grit blasted surfaces. SP 80/20 NiAl exhibits good resistance to high temperature oxidation and abrasion, and excellent resistance to impact and bending. SP 80/20 NiAl can be machined and ground to a finish of 5 micro inches.

CLASSIFICATION

AWS

Ni80-Al20 deposit

APPROVALS

CE approved

WELDING POSITIONS:

PURE WIRE ANALISYS

Ni	Al
80	20

MECHANICAL PROPERTIES

Heat	R_P0,2	Rm	A5	Impact Energy (J) ISO-V			Hardness
Treatment	(N/mm²)	(N/mm²)	(%)	-20°C	-40°C	-60°C	Rockwel B
							60-75

REDRYING TEMPERATURE

not required

SPRAY PARAMETERS / PACKING

Spray parameters					Packing
D (mm)	Voltage (V)	Current (A)	distance (cm)	air pressure (bar)	spool type	kg spool
1,6	29-32	100-200	8-15	3.5-4.2	K-300	15
3,15	29-34	160-300	10-18	3.5-4.2	H-420	25

PREPARATION

Recommended method of preparation is, to grit blast with 24 mesh aluminum oxide, rough grind, or rough machine in a lathe.