Sandvik Bioline 20AP Precision Wire

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Sandvik Bioline 20AP Precision Wire
Categories:	Metal; Ferrous Metal; Carbon Steel
Material Notes:	Sandvik Bioline 20AP is a hardenable, free-cutting carbon steel combining excellent machining properties, high hardness and dimensional stability during hardening. Very suitable for long narrow components with tight tolerances such as shafts, dental burrs and other fine mechanical components. Service temperature -50 to +100 °C. Prolonged service at elevated temperatures causes decreased hardness when used in the hardened and tempered condition. Information provided by Sandvik
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Vickers	240	HV5, 600°C-tempering temperature
	925	HV5, 100°C-tempering temperature
Tensile Strength, Ultimate	720 MPa @Diameter 1.60 - 2.50 mm	drawn, coiled
	750 MPa @Diameter 6.00 - 12.0 mm	drawn/ground, straight
	770 MPa @Diameter 0.800 - 1.60 mm	drawn, coiled
	810 MPa @Diameter 3.00 - 6.00 mm	drawn, straight
	>= 900 MPa @Diameter 2.00 - 2.50 mm	Drawn/ground
	>= 920 MPa @Diameter 2.00 - 3.00 mm	Drawn/ground
	>= 920 MPa @Diameter 1.15 - 2.00 mm	Drawn
	>= 980 MPa @Diameter 0.800 - 1.15 mm	drawn, straight
Tensile Strength, Yield	720 MPa @Strain 0.2 %	d=1.60-2.5, drawn, coiled
	620 MPa @Diameter 6.00 - 12.0 mm, Strain 0.2 %	drawn/ground, straight
	670 MPa @Diameter 3.00 - 6.00 mm, Strain 0.2 %	drawn, straight
	770 MPa @Diameter 0.800 - 1.60 mm, Strain 0.2 %	drawn, coiled
	>= 830 MPa @Diameter 2.00 - 2.50 mm, Strain 0.2 %	drawn/ground, straight
	>= 850 MPa @Diameter 2.00 - 3.00 mm, Strain 0.2 %	drawn/ground, straight
	>= 850 MPa @Diameter 1.15 - 2.00 mm, Strain 0.2 %	drawn, straight
	>= 910 MPa @Diameter 0.800 - 1.15 mm, Strain 0.2 %	drawn, straight
Elongation at Break	3.0 % @Diameter 0.800 - 1.15 mm	drawn, straight
	4.0 % @Diameter 0.800 - 1.60 mm	drawn, coiled
	5.0 % @Diameter 1.15 - 2.00 mm	drawn, straight
	6.0 % @Diameter 2.00 - 3.00 mm	drawn/ground, straight
	7.0 % @Diameter 2.00 - 2.50 mm	drawn/ground, straight
	7.0 % @Diameter 1.60 - 2.50 mm	drawn, coiled
	10 % @Diameter 3.00 - 6.00 mm	drawn, straight
	12 % @Diameter 6.00 - 12.0 mm	drawn/ground, straight
Charpy Impact	1.30 J	200°C tempering temperature
	2.00 J	300°C tempering temperature
	7.30 J	400°C tempering temperature
	10.0 J	500°C tempering temperature
	17.0 J	600°C-tempering temperature

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000180 ohm-cm	cold drawn
	0.0000210 ohm-cm	heat treated

Thermal Properties	Original Value	Comments
CTE, linear	11.5 µm/m-°C @Temperature 20.0 - 100 °C	cold drawn or heat treated
	11.5 µm/m-°C @Temperature 20.0 - 200 °C	Cold drawn
	12.0 µm/m-°C @Temperature 20.0 - 200 °C	Heat treated
	12.5 µm/m-°C @Temperature 20.0 - 300 °C	cold drawn or heat treated
Maximum Service Temperature, Air	100 °C
Minimum Service Temperature, Air	-50.0 °C

Component Elements Properties	Original Value	Comments
Carbon, C	1.0 %
Chromium, Cr	<= 0.10 %
Iron, Fe	97.9 %	As Balance
Lead, Pb	0.20 %
Manganese, Mn	0.40 %
Molybdenum, Mo	<= 0.030 %
Nickel, Ni	<= 0.10 %
Phosphorus, P	<= 0.030 %
Silicon, Si	0.20 %
Sulfur, S	0.050 %

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NSANDV211 / 19105

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