Aluminium bronze - AB 260 Ni
(Identical or equivalent to: EN-CW 308 G, ISO-Cu Al11 Ni6 Fe5)
Chemical composition (nom.)
- Cu Rest
- Al 10,5-12,5 %
- Ni 5,0-7,5 %
- Fe 4,8-7,3 %
- Max. impurities:
Mn 0,6 %
Others. 0,5 %
Mechanical properties - Concast
Yield strength (Rp N/mm 2 ): 450-680 N/mm2
Tensile strength (Rm N/mm 2) ): 750-830 N/mm2
Elongation in % A 5: > 8 %
Hardness / Brinell: 260 HB
(All values = Nominal values)
Mating material: Min. surface hardness 400 HB Rec. Surface roughness < 1 Ra.
Machineability 40 /100 (Index, free cutting brass, CuZn39Pb3 100 /100)
Areas of use
(similar to AB 220Ni, but this material is superior in strength)
Parts for injection moulding tools, wormwheels, guide-bushings and -plates, sparkfree tools, blade wheels, bearings exposed to shock and/or abrasion, screws and nuts, guideparts for hydraulics, valves, high pressure fittings etc.
Other material information
| Physical properties |
Value |
| Density, g/cm3 |
7.6 |
| Modulus of elasticity KN/mm2 |
127.5 |
| Thermal conductivity W / m · K |
45 |
| 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) |
|