non-ferrous wire

Non-Ferrous

Phos Bronze , Beryllium Copper, Monel series

Non-ferrous spring wire refers to spring wire manufactured from metals and alloys that do not contain significant amounts of iron, such as phosphor bronze, beryllium copper or Monel series.

These materials are selected for applications where corrosion resistance, electrical conductivity, non-magnetic properties, or resistance to extreme temperatures is required.

Non-ferrous spring wire is widely used in electrical contacts, telecommunications equipment, medical devices, aerospace components, marine hardware, and precision instruments.

Depending on the alloy, it can provide excellent fatigue life, conductivity, and environmental resistance while maintaining the elasticity needed for reliable spring performance. As a result, non-ferrous spring wire is often preferred in specialized applications where conventional carbon steel spring wire would not meet performance or durability requirements.

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Material PHOSPHOR BRONZE BERYLLIUM COPPER MONEL 400 MONEL 500
Standard Grade A ASTM B 159 ASTM B 197 AMS 7233 AMS 7233
Nominal Analysis Cu -- 94.0% - 96.0% Cu -- 98.0% Ni -- 66.0% Ni -- 65.0%
Sn -- 4.0 - 6.0% Be -- 2.0% Cu -- 31.5% Cu -- 29.5%
C/Fe C/Fe/A/Ti
Minimum Tensile Strength 105-145 150-230 145-180 160-200
Modulus of Elasticity E 15 18.5 26 26
psi x 103
Design Stress % Minimum 40 45 40 40
Tensile
Modulus in Torsion 6.25 7 9.5 9.5
G psi x 106
Maximum Temp. °F 200 400 450 550
Maximum Temp. °C 93.8 204 232 288
Rockwell Hardness B98-104 C35-42 C23-32 C23-35
Benetfits Good corrosion resistance and electrical conductivity. Cold drawn and may be mill hardened before fabrication. Good corrosion resistance and electrical conductivity. High physicals. Good corrosion resistance at moderately elevated temperature. Excellent corrosion resistance at moderately elevated temperature.

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