17-7 PH Stainless Steel, CH900, plate, sheet, and strip

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17-7 PH Stainless Steel, CH900, plate, sheet, and strip
Categories:	Metal; Ferrous Metal; Stainless Steel; Precipitation Hardening Stainless; T S10000 Series Stainless Steel
Material Notes:	Processing: CH900 - heated to austenitic range, 1040°C (1900°F), and water quenched. Severely cold worked (60-70%). The cold working induces a martensite transformation in the austenite. Tempered at 480°C (900°) Applications: high strength high temperature applications, chemical processing equipment, heat exchangers, power boilers, superheater tubes Corrosion Resistance: 17-7 PH is suitable for use in fresh water, industrial and marine atmospheres, and mild chemical and oxidizing environments. 17-7 PH should not be used in salt water or reducing environments.
Key Words:	UNS S17700, double treatment alloy, CH900, plate, sheet, and strip, 17-7PH, 17-7 PH, 17/7PH, 17/7 PH, Precipitation Hardening
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	46
Tensile Strength, Ultimate	1650 MPa
Tensile Strength, Yield	1590 MPa
Elongation at Break	1.0 %
Modulus of Elasticity	204 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000830 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	11.0 µm/m-°C @Temperature 0.000 - 100 °C
	11.6 µm/m-°C @Temperature 0.000 - 315 °C
Specific Heat Capacity	0.460 J/g-°C @Temperature 0.000 - 100 °C
Thermal Conductivity	16.4 W/m-K @Temperature 100 °C
	21.8 W/m-K @Temperature 500 °C
Melting Point	1400 - 1450 °C
Solidus	1400 °C
Liquidus	1450 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.75 - 1.5 %
Carbon, C	<= 0.090 %
Chromium, Cr	16 - 18 %
Iron, Fe	70.6 - 76.8 %	as balance
Manganese, Mn	<= 1.0 %
Nickel, Ni	6.5 - 7.75 %
Phosphorus, P	<= 0.040 %
Silicon, Si	<= 1.0 %
Sulfur, S	<= 0.040 %

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MQM177A / 13556

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