AK Steel 201LN Austenitic Stainless steel

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AK Steel 201LN Austenitic Stainless steel
Categories:	Metal; Ferrous Metal; Austenitic; Stainless Steel
Material Notes:	AK Steel 210 was developed originally to conserve nickel. It provides properties similar to Type 301 and can be used in most applications for Type 301. This alloy is non-magnetic in the annealed condition but slightly magnetic when cold worked. Excellent toughness at low temperatures. Typical uses include appliances, restaurant equipment, cooking utensils, sinks, automotive trim, architectural applications such as windows and doors, railway cars, trailers and hose clamps. Information provided by AK Steel
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Physical Properties	Original Value	Comments

Density	7.81 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	87	Annealed
Hardness, Rockwell C	25	Cold Worked 1/4 hard
	32	Cold Worked 1/2 hard
	41	Cold-Worked Full hard
Tensile Strength, Ultimate	758 MPa	Annealed
	862 MPa	Cold-Worked 1/4 hard
	1034 MPa	Cold-Worked 1/2 hard
	1276 MPa	Cold-Worked Full hard
Tensile Strength, Yield	379 MPa @Strain 0.2 %	Annealed
	517 MPa @Strain 0.2 %	Cold-Worked 1/4 hard
	758 MPa @Strain 0.2 %	Cold-Worked 1/2 hard
	965 MPa @Strain 0.2 %	Cold-Worked Full hard
Elongation at Break	8.0 %	in 2 inches, Cold-Worked Full hard
	15 %	in 2 inches, Cold-Worked 1/2 hard
	25 %	in 2 inches, Cold-Worked 1/4 hard
	52 %	in 2 inches, Annealed
Modulus of Elasticity	197 GPa
Izod Impact	163 J	V-Notch (Annealed)

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000685 ohm-cm
Magnetic Permeability	1.02	H = 200 Oersted, Annealed

Thermal Properties	Original Value	Comments
CTE, linear	15.7 µm/m-°C @Temperature 0.000 - 100 °C
	20.3 µm/m-°C @Temperature <=871 °C
Specific Heat Capacity	0.500 J/g-°C @Temperature 0.000 - 100 °C
Thermal Conductivity	16.2 W/m-K @Temperature 100 °C
	21.4 W/m-K @Temperature 500 °C
Melting Point	1399 - 1454 °C
Solidus	1399 °C
Liquidus	1454 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.15 %
Chromium, Cr	16 - 18 %
Iron, Fe	67.51 - 75 %	As Remainder
Manganese, Mn	5.5 - 7.5 %
Nickel, Ni	3.5 - 5.5 %
Nitrogen, N	<= 0.25 %
Phosphorus, P	<= 0.060 %
Silicon, Si	<= 1.0 %
Sulfur, S	<= 0.030 %

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NAKS105a / 140581

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