303 MA Stainless Steel, in bar, annealed

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303 MA Stainless Steel, in bar, annealed
Categories:	Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 300 Series Stainless Steel
Key Words:	T303, T 303, 303SS, 303 SS, UNS S30345, ASTM A581 (XM-2), ASTM A582 (XM-2), 18-8, 18/8
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Physical Properties	Metric	English	Comments

Density	7.81 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	160	160
Hardness, Knoop	180	180	Converted from Brinell
Hardness, Rockwell B	83	83	Converted from Brinell
Hardness, Vickers	167	167	Converted from Brinell
Tensile Strength, Ultimate	620 MPa	89900 psi
Tensile Strength, Yield	275 MPa @Strain 0.2 %	39900 psi @Strain 0.2 %
Elongation at Break	50 %	50 %	in 50 mm
Modulus of Elasticity	190 GPa	27600 ksi
Izod Impact	115 J @Temperature 21.0 °C	84.8 ft-lb @Temperature 69.8 °F
	150 J @Temperature -195 °C	111 ft-lb @Temperature -319 °F

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000805 ohm-cm	0.0000805 ohm-cm	annealed, 0.000083 cold drawn
Magnetic Permeability	1.008	1.008	at RT

Thermal Properties	Metric	English	Comments
CTE, linear	16.4 µm/m-°C @Temperature 21.0 - 315 °C	9.11 µin/in-°F @Temperature 69.8 - 599 °F
	17.2 µm/m-°C @Temperature 20.0 °C	9.56 µin/in-°F @Temperature 68.0 °F
	18.5 µm/m-°C @Temperature 21.0 - 540 °C	10.3 µin/in-°F @Temperature 69.8 - 1000 °F
	19.1 µm/m-°C @Temperature 21.0 - 650 °C	10.6 µin/in-°F @Temperature 69.8 - 1200 °F
Specific Heat Capacity	0.500 J/g-°C @Temperature 0.000 - 100 °C	0.120 BTU/lb-°F @Temperature 32.0 - 212 °F
Thermal Conductivity	16.2 W/m-K @Temperature 100 °C	112 BTU-in/hr-ft²-°F @Temperature 212 °F
	21.5 W/m-K @Temperature 500 °C	149 BTU-in/hr-ft²-°F @Temperature 932 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	0.80 %	0.80 %
Carbon, C	0.15 %	0.15 %
Chromium, Cr	18 %	18 %
Iron, Fe	68 %	68 %
Manganese, Mn	2.0 %	2.0 %
Molybdenum, Mo	0.50 %	0.50 %
Nickel, Ni	9.0 %	9.0 %
Phosphorus, P	0.040 %	0.040 %
Silicon, Si	1.0 %	1.0 %
Sulfur, S	0.14 %	0.14 %

References for this datasheet.

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MQ303Q / 12672

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