AISI Type S45500 Stainless Steel, hardened at 565°C (1050°F) for 4 hours, air cooled bar

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AISI Type S45500 Stainless Steel, hardened at 565°C (1050°F) for 4 hours, air cooled bar
Categories:	Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T S40000 Series Stainless Steel
Material Notes:	Martensitic, age-hardenable, easily formable (annealed), no corrosion in fresh water, resists staining in normal air atmosphere, good resistance to pitting in 5% salt spray and 5% ferric chloride. For use in service temperatures up to 425°C.
Key Words:	UNS S45500, AMS 5578, AMS 5617, AMS 5672, AMS 5860, ASTM A313 (XM-16), ASTM A564 (XM-16), ASTM A705 (XM-16), martensitic, T S45508
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Physical Properties	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	369 @Diameter 25.4 mm	369 @Diameter 1.00 in	Converted from Rockwell C hardness.
	369 @Diameter 102 mm	369 @Diameter 4.00 in	Converted from Rockwell C hardness.
Hardness, Knoop	403 @Diameter 25.4 mm	403 @Diameter 1.00 in	Converted from Rockwell C hardness.
	403 @Diameter 102 mm	403 @Diameter 4.00 in	Converted from Rockwell C hardness.
Hardness, Rockwell C	40 @Diameter 25.4 mm	40 @Diameter 1.00 in
	40 @Diameter 102 mm	40 @Diameter 4.00 in
Hardness, Vickers	388 @Diameter 25.4 mm	388 @Diameter 1.00 in	Converted from Rockwell C hardness.
	388 @Diameter 102 mm	388 @Diameter 4.00 in	Converted from Rockwell C hardness.
Tensile Strength, Ultimate	1310 MPa @Diameter 25.4 mm	190000 psi @Diameter 1.00 in
	1310 MPa @Diameter 102 mm	190000 psi @Diameter 4.00 in
Tensile Strength, Yield	1205 MPa @Strain 0.2 %, Diameter 25.4 mm	174800 psi @Strain 0.2 %, Diameter 1.00 in
	1205 MPa @Strain 0.2 %, Diameter 102 mm	174800 psi @Strain 0.2 %, Diameter 4.00 in
Elongation at Break	14 % @Diameter 102 mm	14 % @Diameter 4.00 in	in 50 mm
	15 % @Diameter 25.4 mm	15 % @Diameter 1.00 in	in 50 mm
Modulus of Elasticity	200 GPa	29000 ksi	Typical for stainless steel
Notched Tensile Strength	1725 MPa @Diameter 102 mm	250200 psi @Diameter 4.00 in
	1795 MPa @Diameter 25.4 mm	260300 psi @Diameter 1.00 in
Charpy Impact	34.0 J @Diameter 102 mm	25.1 ft-lb @Diameter 4.00 in
	47.0 J @Diameter 25.4 mm	34.7 ft-lb @Diameter 1.00 in

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000900 ohm-cm	0.0000900 ohm-cm	annealed, 0.000075 Ohm-cm when annealed and aged at 510°C for 4 hours and air cooled.

Thermal Properties	Metric	English	Comments
CTE, linear	10.6 µm/m-°C @Temperature 22.0 - 95.0 °C	5.89 µin/in-°F @Temperature 71.6 - 203 °F
	10.8 µm/m-°C @Temperature 22.0 - 150 °C	6.00 µin/in-°F @Temperature 71.6 - 302 °F
	11.2 µm/m-°C @Temperature 22.0 - 205 °C	6.22 µin/in-°F @Temperature 71.6 - 401 °F
	11.7 µm/m-°C @Temperature 22.0 - 260 °C	6.50 µin/in-°F @Temperature 71.6 - 500 °F
	12.1 µm/m-°C @Temperature 22.0 - 315 °C	6.72 µin/in-°F @Temperature 71.6 - 599 °F
Specific Heat Capacity	0.480 J/g-°C	0.115 BTU/lb-°F	Typical value for stainless steel.
Thermal Conductivity	18.0 W/m-K @Temperature 100 °C	125 BTU-in/hr-ft²-°F @Temperature 212 °F
	19.7 W/m-K @Temperature 200 °C	137 BTU-in/hr-ft²-°F @Temperature 392 °F
	21.3 W/m-K @Temperature 300 °C	148 BTU-in/hr-ft²-°F @Temperature 572 °F
	23.4 W/m-K @Temperature 400 °C	162 BTU-in/hr-ft²-°F @Temperature 752 °F
	24.7 W/m-K @Temperature 500 °C	171 BTU-in/hr-ft²-°F @Temperature 932 °F
Maximum Service Temperature, Air	425 °C	797 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.050 %	<= 0.050 %
Chromium, Cr	11.8 %	11.8 %
Copper, Cu	2.0 %	2.0 %
Iron, Fe	73 %	73 %
Manganese, Mn	<= 0.50 %	<= 0.50 %
Molybdenum, Mo	<= 0.50 %	<= 0.50 %
Nickel, Ni	8.5 %	8.5 %
Niobium, Nb (Columbium, Cb)	2.0 %	2.0 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	<= 0.50 %	<= 0.50 %
Sulfur, S	<= 0.030 %	<= 0.030 %
Titanium, Ti	1.1 %	1.1 %

References for this datasheet.

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