WECOBA® 290
ALUMINIUM BRONZE
WECOBA® 290 represents the entry grade within the hard bronze product group with typically increased aluminum content. The alloy is characterized by very high abrasion resistance combined with a residual elongation of approximately 1 percent allowing absorption of minor mechanical loads. This characteristic contributes to increased process reliability.
STEEL INDUSTRY | TUBE BENDING | GENERAL ENGINEERING | PLASTICS PROCESSING | PLASTIC INJECTION MOULDS
Key Features
High strength and hardness
High compressive strength
Very good corrosion and wear resistance
Good sliding properties suitable as a mating material for stainless steel
Chemical Composition nominal
Deviations may occur to achieve specific product characteristics.
Al ALUMINIUM | Fe IRON | Mn MANGANESE | OTHERS | Cu COPPER |
13.0 | 4.2 | 0.8 | max. 0.5 | balance |
EN | DIN | UNS |
- | - | - |
WECOBA® Specification | ||
Typical Application
Components with highest requirements for strength and wear resistance
Components required to withstand high compressive loads
Tools for non-cutting metal forming processes requiring hardness and ductility
Applications requiring corrosion resistance
Typical Components
Bending mandrels and spherical segments for tube forming
Grinding prism and grinding straightedges
Sliding elements and wear parts
Guide elements
Slide elements for plastic injection moulds
Physical and Mechanical Properties nominal
|
| FORGED | EXTRUDED |
Tensile strength Rm | (MPa) | 720 | 735 |
Yield strength RP0.2 | (MPa) | 420 | 405 |
Brinell hardness | (10/3000) | 291 | 280 |
Elongation A5 | (%) | 1 | 1 |
Elasticity modulus E | (GPa) | 106 | 110 |
Compression strength Rmc | (MPa) | 1300 | 1162 |
Density ρ | (g/cm³) | 7.25 |
|
Thermal conductivity λ- 20°C | (W/m.K) | 42 |
|
Electrical conductivity- 20°C | (% I.A.C.S.) | 11 |
|
Coefficient of thermal expansion α | (10-6/K) | 16 |
|
Specific heat cp | (J/g.K) | 0.42 |
|
The values provided are based on experience gained from production facilities, material manufacturers and our own investigations. They may vary due to production- and batch-related influences and therefore do not constitute a guarantee or a warranted property. For the evaluation of specific applications, we are pleased to provide support upon request. Binding statements or commitments are issued exclusively in written form by our technical team. Rev. 02/2026
