WECOBA® 390
ALUMINIUM BRONZE
WECOBA® 390 is a high-performance hard bronze alloy with increased aluminium content. It is particularly suitable for forming operations especially for stainless steel applications. In deep drawing and forming tools the alloy demonstrates superior performance compared with aluminium bronzes containing lower aluminium levels.
DIMENSIONALLY STABLE | TUBE FORMING AND BENDING | DEEP DRAWING | PRESSURE PLATE | BENDING TOOLS | HFI WELDING ROLLS
Key Features
Highest hardness among aluminum bronzes
High compressive strength
Very good corrosion and wear resistance
Good sliding properties suitable as a mating material for stainless steel
Magnetic permeability close to neutral
Chemical Composition nominal
Deviations may occur to achieve specific product characteristics.
Al ALUMINIUM | Fe IRON | OTHERS | Cu COPPER |
Not intended for public release | |||
EN | DIN | UNS |
- | - | - |
WECOBA® Specification | ||
Typical Application
Applications requiring very high wear resistance and compressive strength
Tools for non-cutting metal forming processes such as deep drawing bending and tube forming
Use as a mating material for steel and stainless steel
Applications requiring flawless surface finish quality after forming
Typical Components
Deep Drawing tools, blank holders and punches
Stretch forming and profiling tools
Forming and bending tools
Sliding elements and wear parts
Guide strips and pressure plates
Slide elements for plastic injection moulds
Forming rolls and welding rolls for welded tubes
Physical and Mechanical Properties nominal
|
| FORGED |
Tensile strength Rm | (MPa) | >650 |
Yield strength RP0.2 | (MPa) | >560 |
Brinell hardness | (10/3000) | 376 |
Elongation A5 | (%) | 0.2 |
Elasticity modulus E | (GPa) | 115 |
Compression strength Rmc | (MPa) | 1500 |
Density ρ | (g/cm³) | 7.0 |
Thermal conductivity λ- 20°C | (W/m.K) | 34 |
Electrical conductivity- 20°C | (% I.A.C.S.) | 8 |
Coefficient of thermal expansion α | (10-6/K) | 16 |
Permeability | (H=80A/cm) µ) | 1.05 |
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
