ASTM A229 Oil-tempered Steel Wire, Class I

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ASTM A229 Oil-tempered Steel Wire, Class I
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; ASTM Steel; Carbon Steel; Medium Carbon Steel
Material Notes:	Pretempered steel wire used for mechanical springs and wire forms
Key Words:	UNS K07001
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Physical Properties	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³	Typical of ASTM Steel

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	1140 - 1310 MPa @Diameter 15.9 mm	165000 - 190000 psi @Diameter 0.626 in
	1170 - 1340 MPa @Diameter 12.7 mm	170000 - 194000 psi @Diameter 0.500 in
	1240 - 1410 MPa @Diameter 9.53 mm	180000 - 205000 psi @Diameter 0.375 in
	1260 - 1430 MPa @Diameter 7.92 mm	183000 - 207000 psi @Diameter 0.312 in
	1280 - 1450 MPa @Diameter 6.35 mm	186000 - 210000 psi @Diameter 0.250 in
	1310 - 1480 MPa @Diameter 5.26 mm	190000 - 215000 psi @Diameter 0.207 in
	1410 - 1590 MPa @Diameter 4.11 mm	205000 - 231000 psi @Diameter 0.162 in
	1520 - 1720 MPa @Diameter 3.05 mm	220000 - 249000 psi @Diameter 0.120 in
	1620 - 1830 MPa @Diameter 2.00 mm	235000 - 265000 psi @Diameter 0.0787 in
	1700 - 1910 MPa @Diameter 1.60 mm	247000 - 277000 psi @Diameter 0.0630 in
	1740 - 1950 MPa @Diameter 1.40 mm	252000 - 283000 psi @Diameter 0.0551 in
	1830 - 2040 MPa @Diameter 1.00 mm	265000 - 296000 psi @Diameter 0.0394 in
	1930 - 2140 MPa @Diameter 0.810 mm	280000 - 310000 psi @Diameter 0.0319 in
	1970 - 2180 MPa @Diameter 0.660 mm	286000 - 316000 psi @Diameter 0.0260 in
	2020 - 2230 MPa @Diameter 0.510 mm	293000 - 323000 psi @Diameter 0.0201 in
Modulus of Elasticity	200 GPa	29000 ksi	Typical Carbon Steel
Bulk Modulus	160 GPa	23200 ksi	Typical for Steel
Poissons Ratio	0.29	0.29	Typical Carbon Steel
Shear Modulus	80.0 GPa	11600 ksi	Typical for Steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000170 ohm-cm	0.0000170 ohm-cm	Typical Carbon Steel

Thermal Properties	Metric	English	Comments
CTE, linear	12.0 µm/m-°C	6.67 µin/in-°F	Typical Carbon Steel
Specific Heat Capacity	0.470 J/g-°C	0.112 BTU/lb-°F	Typical Carbon Steel
Thermal Conductivity	52.0 W/m-K	361 BTU-in/hr-ft²-°F	Typical Carbon Steel

Component Elements Properties	Metric	English	Comments
Carbon, C	0.55 - 0.85 %	0.55 - 0.85 %
Iron, Fe	98.29 %	98.29 %	as balance
Manganese, Mn	0.30 - 1.2 %	0.30 - 1.2 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	0.10 - 0.35 %	0.10 - 0.35 %
Sulfur, S	<= 0.030 %	<= 0.030 %

References for this datasheet.

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