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PHILARC CuMnNiAl

AWS Specification : AWS A5.6 E CuMnNiAl

JIS Specification: NONE

Other Specification: NONE

 

I. APPLICATIONS:

PHILARC CuMnNiAl is a manganese-nickel-aluminum bronze coated electrode, for welding cast ship propellers conforming to MIL-B-21230, Alloy 2 (AMPCO 495) for high resistance to corrosion, erosion and cavitations, it is also exhibits good ability to join dissimilar metals.

PHILARC CuMnNiAl is used for joining and surfacing on complex aluminum-bronzes, especially those with high Mn, as well as steel and grey cast iron. Thanks to its high seawater and corrosion resistance, it is also eminently suited for shipbuilding (marine propellers, pumps and fittings) and in the chemical industry (valves, pumps) above all where chemical attack is accompanied by erosion. Its favorable coefficient of friction makes it ideal for surfacing on shafts, sliding surfaces, bearings, punches and dies of all kinds.

 

II. DESCRIPTION:

PHILARC CuMnNiAl possesses outstanding welding properties and can be used in all positions, except in vertical down. The weld metal displays high mechanical properties and is tough, poreless and not prone to cracking.

    III. NOTES ON USAGE:

Clean the weld zone thoroughly. Bigger workpieces are preheated to about 150-250ºC, guide the electrode vertically and weave slightly. Use only dry electrodes. Re-drying 2-3 h at 150ºC.

IV. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):

Cu	Al	Fe	Si	Ni	Mn
Bal.	7.0-8.5	2.0-4.0	1.5 max	1.5-3.0	11.0-14.0

V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

Yield Point N/mm2 (ksi)	Tensile Strength N/mm2 (ksi)	Elongation %	Hardness HB
386 (56)	655 (95)	27	180-190

 VI. WELDING POSITIONS: FLAT, VERTICAL UP, HORIZONTAL, OVERHEAD

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS: DC (+)

Size (mm)	Dia.	2.5	3.2	4
	Length	350	350	350
Current Range Amp		50~70	70~90	90~110

 

 

•  philarc-cumnnial.pdf