Nominal Analysis
0.03 C, 0.50 Mn, 0.50 Si, 5.25 Cr, 42.50 Ni, 0.50 Al, 2.50 Ti, Bal. Fe

Low Expansion 43-PH is an age-hardenable, ferromagnetic, austenitic alloy. Its constant modulus of elasticity, inherent high-strength, good formability, adjustable elastic coefficient and low mechanical hysteresis have been factors in its consideration for use in a wide variety of applications in precision devices where the ambient temperature mechanical property variations must be held to low limits.

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