Sprayforming -AB 340 HSC

(Extrahard sprayformed aluminum-bronze, hardness degree 2)

Chemical composition (nom.)

• Cu Rest.
• Al 14,1 %
• Fe 4,5 %
• Mn 1,4 %
• Co 1,4 %
• Others max. 0,5 %

Mechanical properties

Yield stress (Rp N/mm2 ): > 400 N/mm2
Tensile strength (Rm N/mm2) ): > 650 N/mm2
Elongation in % A 5 : 2 %
Hardness/Brinell: 340 HB
Compression strength (MPa): 1254

(All values = Nominal values)

Machineability: 65 /100 (Index, Free cutting brass CuZn39Pb3 = 100 /100)
Mating material: Min. surface hardness >500 HB Rec. Surface roughness < 1 Ra.

Information

• Previous alloy-name by LM was WAB-3 (change of alloy name year 2004, due to slight change in chemical composition).
• The great benefit with the alloy and the castingmethod of Sprayforming is that it creates a tensionfree, fully homogenous material that is easier to machine and friendlier towards the machining tools (up to 40 % saving costs of tools due to good chipping).
• 25 % extended lifespan of products due to higher pressure resistance, good homogeneity

Areas of use

Same as AB 340. Parts for moulding tools in forming and/or drawing stainless steel-alloys. Used for example in bending- and wiping-blocks, pressing in stainless steel, deep-drawing of seamless tubes and specially alloyed steel sheets etc.

Other material information

Physical properties	Value
Density, g/cm 3	7,1
Modulus of elasticity KN/mm 2	105.0
Thermal conductivity W / m · K	42
Welding, brazing and soldering	Abilities
Arc-welding	Not recommended
Brazing / Soldering	Not recommended
Polishing, mechanical	Good
Polishing, electrolytical	Not recommended
Galvanization	Not recommended
Shapes and forms available	Available as
Continously casted mtrl. (tubes,round solids, flats)	X
Cast material (die- or sand-cast)
Forged material	X
Partly or fully machined parts	X
Welding equipment (welding-wire / welding-rods)