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AMS 5643 – Precipitation hardened Stainless Steel

Alias

AMS 5643
X5CrNiCuNb16.4
1.4542
Z6CNU17-04
17-4 PH
UNS S17400
SUS 630

Chemistry

Base Element Fe(Iron)

Element Min Max
C(Carbon) 0.07%
Cr(Chromium) 15 17%
Cu(Copper) 3 5%
Mn (Manganese) 1.5%
Mo (molybdenum) 0.6%
Ni(Nickel) 3 5%
P (Phosphorus) 0.04%
S(Sulphur) 0.015%
Si(Silicon) 0.7%
Mechanical Properties
Ultimate Tensile Strength (UTS) 1070 to 1270 MPa
0.2% Proof Stress 1000 MPa (minimum)
Elongation 8% (minimum)

Applications

Bolting
Used for its Corrosion resistance, typically used for Structural Aircraft parts.

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