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Phosphor Bronze Springs

Phosphor Bronze Springs are cold drawn springs with good conductivity and corrosion resistance. Torqbolt is a prominent Phosphor Bronze Spring supplier in India.

Phosphor Bronze Spring Types

Phosphor Bronze Extension Springs Phosphor Bronze Wires Phosphor Bronze Torsion Springs Phosphor Bronze Compression Springs

Phosphor Bronze Spring Properties

Specification Phosphor Bronze Grade A ASTM B 159
Nominal Chemistry Copper(Cu) 94.0 - 96.0%
Tin(Sn) 4.0 6.0%
Minimum Tensile Strength
psi x 103
105-145
E - Modulus of Elasticity
psi x 106
15
Design Stress % Minimum Tensile 40
G - Modulus in Torsion
psi x 106
6.25
Maximum Operating Temperature
°F
200
Rockwell Hardness B98 - 104
Density
lb/in3
0.32
Shear Modulus
c GPa
11600 80.0
Equivalent Specifications Phosphore Bronze
ASTM B159
ASTM B139
UNS C51000
QQ-W-321
SAE J463