ASTM A227 Steel Wire, Class II

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ASTM A227 Steel Wire, Class II
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; ASTM Steel; Carbon Steel; Medium Carbon Steel
Material Notes:	Round, hard drawn steel wire for mechanical springs and wire forms
Key Words:	UNS K06501
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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	1180 - 1340 MPa @Diameter 15.9 mm	171000 - 194000 psi @Diameter 0.625 in
	1250 - 1410 MPa @Diameter 12.7 mm	181000 - 205000 psi @Diameter 0.500 in
	1340 - 1520 MPa @Diameter 9.52 mm	194000 - 220000 psi @Diameter 0.375 in
	1450 - 1650 MPa @Diameter 6.35 mm	211000 - 239000 psi @Diameter 0.250 in
	1510 - 1700 MPa @Diameter 5.26 mm	219000 - 247000 psi @Diameter 0.207 in
	1560 - 1770 MPa @Diameter 4.50 mm	226000 - 256000 psi @Diameter 0.177 in
	1590 - 1800 MPa @Diameter 3.76 mm	231000 - 261000 psi @Diameter 0.148 in
	1670 - 1880 MPa @Diameter 3.05 mm	242000 - 273000 psi @Diameter 0.120 in
	1750 - 1980 MPa @Diameter 2.34 mm	254000 - 287000 psi @Diameter 0.0920 in
	1840 - 2080 MPa @Diameter 1.83 mm	267000 - 301000 psi @Diameter 0.0720 in
	1930 - 2180 MPa @Diameter 1.37 mm	280000 - 316000 psi @Diameter 0.0540 in
	2030 - 2290 MPa @Diameter 1.04 mm	294000 - 332000 psi @Diameter 0.0410 in
	2120 - 2390 MPa @Diameter 0.813 mm	307000 - 347000 psi @Diameter 0.0320 in
	2180 - 2450 MPa @Diameter 0.660 mm	316000 - 356000 psi @Diameter 0.0260 in
	2230 - 2510 MPa @Diameter 0.508 mm	324000 - 364000 psi @Diameter 0.0200 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	0.45 - 0.85 %	0.45 - 0.85 %	may not vary by more than .13% in any one lot
Iron, Fe	98.255 %	98.255 %	as balance
Manganese, Mn	0.30 - 1.3 %	0.30 - 1.3 %	may not vary by more than .30% in any one lot
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	0.15 - 0.35 %	0.15 - 0.35 %
Sulfur, S	<= 0.050 %	<= 0.050 %

References for this datasheet.

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MSA227II / 142767

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