AK Steel 15-5 PH® Precipitation Hardening Stainless Steel, Condition A

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AK Steel 15-5 PH® Precipitation Hardening Stainless Steel, Condition A
Categories:	Metal; Ferrous Metal; Martensitic; Stainless Steel; Precipitation Hardening Stainless
Material Notes:	AK Steel 15-5 PH® provides high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C), and good toughness in both base metal and welds. Short-time, low-temperature heat treatments minimize distortion and scaling. AK Steel 15-5 PH® is the ferrite-free version of AK Steel 17-4 PH® Stainless Steel. Both alloys are widely used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries. The material supplied from the mill is in Condition A. After fabrication eight standard heat treatments have been developed to provide a wide range of properties. Information provided by AK Steel
Key Words:	UNS S15500
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Physical Properties	Original Value	Comments

Density	7.78 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	35	Longitudinal
	35	Transverse
Tensile Strength, Ultimate	1110 MPa	Longitudinal
	1116 MPa	Transverse
Tensile Strength, Yield	963 MPa @Strain 0.2 %	Longitudinal
	988 MPa @Strain 0.2 %	Transverse
Elongation at Break	7.6 %	in 2 inches, Transverse
	8.4 %	in 2 inches, Longitudinal

Thermal Properties	Original Value	Comments
CTE, linear	10.8 µm/m-°C @Temperature 21.0 - 93.0 °C
	11.3 µm/m-°C @Temperature <=427 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.070 %
Chromium, Cr	14 - 15.5 %
Copper, Cu	2.5 - 4.5 %
Iron, Fe	71.91 - 79.85 %	As Remainder
Manganese, Mn	<= 1.0 %
Nb + Ta	0.15 - 0.45 %
Nickel, Ni	3.5 - 5.5 %
Phosphorus, P	<= 0.040 %
Silicon, Si	<= 1.0 %
Sulfur, S	<= 0.030 %

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NAKS116 / 14719

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