ATI Allegheny Ludlum Stainless Steel Type 301, 1/4 Hard (UNS S30100)

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ATI Allegheny Ludlum Stainless Steel Type 301, 1/4 Hard (UNS S30100)
Categories:	Metal; Ferrous Metal; Stainless Steel; T 300 Series Stainless Steel
Material Notes:	Allegheny Ludlum Type 301 is a high strength grade of steel available in six conditions or tempers, its resistance to atmosphere corrosion and its bright, attractive surface make it an excellent choice for decorative structural applications. Applications include automobile molding and trim, wheel cover, conveyor belts, kitchen equipment, roof draining systems, hose clamps, springs, truck and trailer bodies, railway and subway cars. By varying the chemical composition within the limits set by the ASTM Specifications and by temper rolling, a broad range of magnetic and mechanical properties can be obtained for a variety of applications. Information provided by Allegheny Ludlum Corporation.
Key Words:	ASTM A240; ASTM A666
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Physical Properties	Original Value	Comments

Density	8.03 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	255
Hardness, Rockwell C	25
Tensile Strength, Ultimate	>= 862 MPa
Tensile Strength, Yield	>= 517 MPa @Strain 0.2 %
Elongation at Break	>= 25 %	in 2" (50 mm)
Modulus of Elasticity	193 GPa	as rolled longitudinal
	197 GPa	as rolled transverse
Compressive Yield Strength	345 MPa	longitudinal
	627 MPa	transverse
Fatigue Strength	303 MPa	endurance limit; test details not reported
Charpy Impact	150 J
	150 J @Temperature -73.0 °C
	150 J @Temperature 196 °C

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000720 ohm-cm
Magnetic Permeability	<= 1.02	typically < 1.02 at 200H; increases with cold work.

Thermal Properties	Original Value	Comments
CTE, linear	16.6 µm/m-°C @Temperature 20.0 - 100 °C
	17.6 µm/m-°C @Temperature 20.0 - 300 °C
	18.6 µm/m-°C @Temperature 20.0 - 500 °C
	19.5 µm/m-°C @Temperature 20.0 - 700 °C
Specific Heat Capacity	0.500 J/g-°C @Temperature 0.000 - 100 °C
Thermal Conductivity	16.3 W/m-K @Temperature 100 °C
	21.4 W/m-K @Temperature 500 °C
Melting Point	1399 - 1421 °C
Solidus	1399 °C
Liquidus	1421 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.15 %
Chromium, Cr	16 - 18 %
Iron, Fe	75 %	as balance
Manganese, Mn	<= 2.0 %
Nickel, Ni	6.0 - 8.0 %
Nitrogen, N	<= 0.10 %
Phosphorus, P	<= 0.045 %
Silicon, Si	<= 0.75 %
Sulfur, S	<= 0.030 %

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NL3011 / 17836

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