Corepoint® Material Properties

The brand name patented worldwide for corrosion-resistant and antimagnetic axles and pivots is Corepoint®. Axles and pivots are produced in sizes between 0.3mm and 1.6mm in diameter. Depending on the diameter, a degree of hardness between 750-850 Vickers is achieved.

Corrosion proof against nearly all acids except moderate to high corrosion by aqua regia (HCL + HNO3) 3:1, hydrofluoric acid (HF), caustic hydrate of soda (NAOH) and caustic potash (KOH) to 370°C, sulphuric above 50% over 60°C, bromine.

Applications: Measuring instruments including water meters, height gauges, medical devices and also micromotors. Due to lower manufacturing costs and short delivery times, the parts are ideally suited to replace and substitute hard metal axles and pivots.


Composition Co, Ni, Cr, Fe, W, Mo as main elements with Ti, Mn, Be, Si, C as admixtures
Hardness max. 770-820 Vickers
Specific Gravity 8.2 g/m3
Specific Resistance 1.0 x 10-4 Ω cm
Temperature Coefficient of Resistance 0.23 x 10-3 per °C
Linear Expansion 13 x 10-6 per °C
Magnetic Permeability 1.001
Modulus of Elasticity 30.5 x 106 – 32.7 x 106 PSI
Modulus of Shear 11.4 x 106 PSI
Elastic Limit 255,000 – 312,000 PSI
Tensile Strength 326,000 – 355,000 PSI

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