Carpenter Gall-Tough® Stainless, Annealed and Cold Drawn Bar, 0% Cold Work

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Carpenter Gall-Tough® Stainless, Annealed and Cold Drawn Bar, 0% Cold Work
Categories:	Metal; Ferrous Metal; Stainless Steel; T S20000 Series Stainless Steel
Material Notes:	Data provided by Carpenter Technology Corporation. Threshold Galling Stress 103 MPa (higher stress tests not performed). The avg. total volume loss on the wear test is 5 mm³ at 100 rpm. Gall-Tough® stainless is a high silicon, high manganese, nitrogen strengthened, austenitic stainless alloy which possesses superior self-mated galling resistance and metal-to-metal wear resistance. The alloy possesses higher strength and high temperature oxidation resistance than Type 304 stainless with comparable corrosion resistance, depending on the environment. Gall-Tough® is a registered trademark of Carpenter Technology Corporation.
Key Words:	ASTM A479; ASTM A276; ASTM A314; ASTM A580; ASTM A240
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Physical Properties	Original Value	Comments

Density	7.85 g/cc @Temperature 23.0 °C

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	979 MPa
	1344 MPa @Temperature -73.0 °C
Tensile Strength, Yield	379 MPa @Strain 0.2 %
	448 MPa @Strain 0.2 %, Temperature -73.0 °C
Elongation at Break	59 %	in 4D
	47 % @Temperature -73.0 °C	in 4D
Reduction of Area	59 %
	68 % @Temperature -73.0 °C
Modulus of Elasticity	171.1 GPa @Temperature 23.0 °C
Charpy Impact	325 J	V-notch

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000716 ohm-cm @Temperature 23.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	17.3 µm/m-°C @Temperature 25.0 - 100 °C
	17.73 µm/m-°C @Temperature 25.0 - 250 °C
	18.5 µm/m-°C @Temperature 25.0 - 500 °C
Specific Heat Capacity	0.5145 J/g-°C @Temperature 52.0 - 102 °C
Thermal Conductivity	12.22 W/m-K @Temperature 23.0 °C
Maximum Service Temperature, Air	982 °C	Scaling Temperature for Continuous Service

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.15 %
Chromium, Cr	15 - 18 %
Iron, Fe	68 %	as remainder
Manganese, Mn	4.0 - 6.0 %
Molybdenum, Mo	0.50 - 2.5 %
Nickel, Ni	4.0 - 6.0 %
Nitrogen, N	0.080 - 0.20 %
Phosphorus, P	<= 0.040 %
Silicon, Si	3.0 - 4.0 %
Sulfur, S	<= 0.040 %

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NCAR2B / 15614

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