Aluminium bronze - AB 340
Chemical composition (nom.)
- Cu Rest
- Al 14,0 %
- Fe 5,0 %
- Max. impurities:
Others 2,0 %
Mechanical properties - Concast
Yield strength (Rp N/mm 2 ): >540 N/mm2
Tensile strength (Rm N/mm 2) ): >630 N/mm2
Elongation in % A 5: > 0.5 %
Hardness / Brinell: 340 HB
(All values = Nominal values)
Mating material: Min. surface hardness 450 HB Rec. Surface roughness < 1 Ra.
Machineability 40 /100 (Index, free cutting brass, CuZn39Pb3 100 /100)
Areas of use
Parts for moulding tools in forming and/or drawing stainless steel-alloys. Used for example in bending, pressing, extruded shapes, deep-drawing of seamless tubes and specially alloyed steel sheets etc.
Other material information
| Physical properties |
Value |
| Density, g/cm3 |
7.1 |
| Modulus of elasticity KN/mm2 |
105.0 |
| Thermal conductivity W / m · K |
40 |
| Welding, brazing and soldering |
Abilities |
| Arc-welding |
Good |
| Oxyacetylene |
Not recommended |
| Brazing |
Good |
| Soldering |
Good |
| Shapes and forms available |
Available as |
| Continously casted mtrl. (tubes,round solids, flats) |
X |
| Cast material (die- or sand-cast) |
X |
| Forged material |
X |
| Partly or fully machined parts |
X |
| Welding equipment (welding-wire / welding-rods) |
X |