Sandvik 12R10 Spring Wire

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Sandvik 12R10 Spring Wire
Categories:	Metal; Ferrous Metal; Special-Purpose Steel
Material Notes:	Sandvik 12R10/T302 are general purpose steel grades which meet most requirements with regard to mechanical properties and corrosion resistance. Service temperature: -200 to 250 °C (-330 to 480°F) Information provided by Sandvik ASTM 302; EN 1.4310
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Physical Properties	Metric	English	Comments

Density	7.90 g/cc	0.285 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	1400 MPa @Thickness 7.00 - 8.50 mm	203000 psi @Thickness 0.276 - 0.335 in
	1450 MPa @Thickness 6.00 - 7.00 mm	210000 psi @Thickness 0.236 - 0.276 in
	1505 MPa @Thickness 5.00 - 6.00 mm	218300 psi @Thickness 0.197 - 0.236 in
	1560 MPa @Thickness 4.25 - 5.00 mm	226000 psi @Thickness 0.167 - 0.197 in
	1615 MPa @Thickness 3.50 - 4.25 mm	234200 psi @Thickness 0.138 - 0.167 in
	1665 MPa @Thickness 3.00 - 3.50 mm	241500 psi @Thickness 0.118 - 0.138 in
	1720 MPa @Thickness 2.50 - 3.00 mm	249000 psi @Thickness 0.0984 - 0.118 in
	1775 MPa @Thickness 2.00 - 2.50 mm	257400 psi @Thickness 0.0787 - 0.0984 in
	1830 MPa @Thickness 1.75 - 2.00 mm	265000 psi @Thickness 0.0689 - 0.0787 in
	1880 MPa @Thickness 1.50 - 1.75 mm	273000 psi @Thickness 0.0591 - 0.0689 in
	1935 MPa @Thickness 1.25 - 1.50 mm	280600 psi @Thickness 0.0492 - 0.0591 in
	1990 MPa @Thickness 1.00 - 1.25 mm	289000 psi @Thickness 0.0394 - 0.0492 in
	2045 MPa @Thickness 0.800 - 1.00 mm	296600 psi @Thickness 0.0315 - 0.0394 in
	2095 MPa @Thickness 0.650 - 0.800 mm	303900 psi @Thickness 0.0256 - 0.0315 in
	2150 MPa @Thickness 0.500 - 0.650 mm	312000 psi @Thickness 0.0197 - 0.0256 in
	2200 MPa @Thickness 0.400 - 0.500 mm	319000 psi @Thickness 0.0157 - 0.0197 in
	2260 MPa @Thickness 0.300 - 0.400 mm	328000 psi @Thickness 0.0118 - 0.0157 in
	2310 MPa @Thickness 0.200 - 0.300 mm	335000 psi @Thickness 0.00787 - 0.0118 in
	1345 MPa @Diameter 8.50 - 10.0 mm	195100 psi @Diameter 0.335 - 0.394 in
	2365 MPa @Diameter 0.150 - 0.200 mm	343000 psi @Diameter 0.00591 - 0.00787 in
Tensile Strength, Yield	1120 MPa @Thickness 7.00 - 8.50 mm	162000 psi @Thickness 0.276 - 0.335 in
	1160 MPa @Thickness 6.00 - 7.00 mm	168000 psi @Thickness 0.236 - 0.276 in
	1205 MPa @Thickness 5.00 - 6.00 mm	174800 psi @Thickness 0.197 - 0.236 in
	1250 MPa @Thickness 4.25 - 5.00 mm	181000 psi @Thickness 0.167 - 0.197 in
	1290 MPa @Thickness 3.50 - 4.25 mm	187000 psi @Thickness 0.138 - 0.167 in
	1330 MPa @Thickness 3.00 - 3.50 mm	193000 psi @Thickness 0.118 - 0.138 in
	1375 MPa @Thickness 2.50 - 3.00 mm	199400 psi @Thickness 0.0984 - 0.118 in
	1420 MPa @Thickness 2.00 - 2.50 mm	206000 psi @Thickness 0.0787 - 0.0984 in
	1465 MPa @Thickness 1.75 - 2.00 mm	212500 psi @Thickness 0.0689 - 0.0787 in
	1505 MPa @Thickness 1.50 - 1.75 mm	218300 psi @Thickness 0.0591 - 0.0689 in
	1550 MPa @Thickness 1.25 - 1.50 mm	225000 psi @Thickness 0.0492 - 0.0591 in
	1590 MPa @Thickness 1.00 - 1.25 mm	231000 psi @Thickness 0.0394 - 0.0492 in
	1635 MPa @Thickness 0.800 - 1.00 mm	237100 psi @Thickness 0.0315 - 0.0394 in
	1680 MPa @Thickness 0.650 - 0.800 mm	244000 psi @Thickness 0.0256 - 0.0315 in
	1720 MPa @Thickness 0.500 - 0.650 mm	249000 psi @Thickness 0.0197 - 0.0256 in
	1760 MPa @Thickness 0.400 - 0.500 mm	255000 psi @Thickness 0.0157 - 0.0197 in
	1810 MPa @Thickness 0.300 - 0.400 mm	263000 psi @Thickness 0.0118 - 0.0157 in
	1850 MPa @Thickness 0.200 - 0.300 mm	268000 psi @Thickness 0.00787 - 0.0118 in
	1075 MPa @Diameter 8.50 - 10.0 mm, Strain 0.2 %	155900 psi @Diameter 0.335 - 0.394 in, Strain 0.2 %
	1890 MPa @Diameter 0.150 - 0.200 mm, Strain 0.2 %	274000 psi @Diameter 0.00591 - 0.00787 in, Strain 0.2 %
Modulus of Elasticity	185 GPa	26800 ksi	as delivered
	190 GPa	27600 ksi	as tempered
Poissons Ratio	0.30	0.30	Calculated
Shear Modulus	71.0 GPa	10300 ksi	as received
	73.0 GPa	10600 ksi	as tempered

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000800 ohm-cm @Temperature 20.0 °C	0.0000800 ohm-cm @Temperature 68.0 °F
	0.0000950 ohm-cm @Temperature 300 °C	0.0000950 ohm-cm @Temperature 572 °F
	0.850 ohm-cm @Temperature 100 °C	0.850 ohm-cm @Temperature 212 °F
	0.900 ohm-cm @Temperature 200 °C	0.900 ohm-cm @Temperature 392 °F
Magnetic Permeability	10	10	µ

Thermal Properties	Metric	English	Comments
CTE, linear	17.0 µm/m-°C @Temperature 20.0 - 100 °C	9.44 µin/in-°F @Temperature 68.0 - 212 °F
	17.5 µm/m-°C @Temperature 20.0 - 200 °C	9.72 µin/in-°F @Temperature 68.0 - 392 °F
	18.5 µm/m-°C @Temperature 20.0 - 300 °C	10.3 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.500 J/g-°C @Temperature 50.0 - 100 °C	0.120 BTU/lb-°F @Temperature 122 - 212 °F
Thermal Conductivity	15.0 W/m-K @Temperature 20.0 °C	104 BTU-in/hr-ft²-°F @Temperature 68.0 °F
	16.0 W/m-K @Temperature 100 °C	111 BTU-in/hr-ft²-°F @Temperature 212 °F
	18.0 W/m-K @Temperature 200 °C	125 BTU-in/hr-ft²-°F @Temperature 392 °F
	19.0 W/m-K @Temperature 300 °C	132 BTU-in/hr-ft²-°F @Temperature 572 °F
Maximum Service Temperature, Air	250 °C	482 °F
Minimum Service Temperature, Air	-200 °C	-328 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.070 %	0.070 %	T302
	0.080 %	0.080 %	12R10
Chromium, Cr	18 %	18 %	12R10
	18.5 %	18.5 %	T302
Iron, Fe	43.6 %	43.6 %	As Balance
Magnesium, Mg	1.3 %	1.3 %	T302
Manganese, Mn	1.2 %	1.2 %	12R10
Nickel, Ni	8.0 %	8.0 %	T302
	8.2 %	8.2 %	12R10
Phosphorus, P	<= 0.035 %	<= 0.035 %	T302
	<= 0.040 %	<= 0.040 %	12R10
Silicon, Si	0.50 %	0.50 %	12R10
	0.50 %	0.50 %	T302
Sulfur, S	<= 0.010 %	<= 0.010 %	12R10
	<= 0.015 %	<= 0.015 %	T302

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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