304 Stainless Steel (UNS S30400); Cold Finished and Annealed Bar

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304 Stainless Steel (UNS S30400); Cold Finished and Annealed Bar
Categories:	Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 300 Series Stainless Steel
Material Notes:	Austenitic Cr-Ni stainless steel. Better corrosion resistance than Type 302. High ductility, excellent drawing, forming, and spinning properties. Essentially non-magnetic, becomes slightly magnetic when cold worked. Low carbon content means less carbide precipitation in the heat-affected zone during welding and a lower susceptibility to intergranular corrosion. Applications: beer kegs, bellows, chemical equipment, coal hopper linings, cooking equipment, cooling coils, cryogenic vessels, dairy equipment, evaporators, flatware utensils, feedwater tubing, flexible metal hose, food processing equipment, hospital surgical equipment, hypodermic needles, kitchen sinks, marine equipment and fasteners, nuclear vessels, oil well filter screens, refrigeration equipment, paper industry, pots and pans, pressure vessels, sanitary fittings, valves, shipping drums, spinning, still tubes, textile dyeing equipment, tubing. Corrosion Resistance: resists most oxidizing acids and salt spray. UNS S30400; AMS 5501, 5513, 5560, 5565; ASME SA182, SA194 (8), SA213, SA240; ASTM A167, A182, A193, A194
Key Words:	aisi304, AISI 304, T304, T 304, SUS304, SS304, 304SS, 304 SS, UNS S30400, AMS 5501, AMS 5513, AMS 5560, AMS 5565, AMS 5566, AMS 5567, AMS 5639, AMS 5697, ASME SA182, ASME SA194 (8), ASME SA213, ASME SA240, ASME SA249, ASME SA312, ASME SA320 (B8), ASME SA358, ASME SA376, ASME SA403, ASME SA409, ASME SA430, ASME SA479, ASME SA688, ASTM A167, ASTM A182, ASTM A193, ASTM A194, ASTM A666, FED QQ-S-763, MILSPEC MIL-S-5059, SAE 30304, DIN 1.4301, X5CrNi189, B.S. 304 S 15, EN 58E, PN 86020 (Poland), OH18N9, ISO 4954 X5CrNi189E, ISO 683/13 11, 18-8
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Physical Properties	Metric	English	Comments

Density	8.00 g/cc	0.289 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	>= 515 MPa @Thickness >=12.7 mm	>= 74700 psi @Thickness >=0.500 in
	>= 515 MPa @Thickness >=12.7 mm	>= 74700 psi @Thickness >=0.500 in
	>= 620 MPa @Thickness <=12.7 mm	>= 89900 psi @Thickness <=0.500 in
	>= 620 MPa @Thickness <=12.7 mm	>= 89900 psi @Thickness <=0.500 in
Tensile Strength, Yield	>= 205 MPa @Strain 0.2 %, Thickness >=12.7 mm	>= 29700 psi @Strain 0.2 %, Thickness >=0.500 in
	>= 205 MPa @Strain 0.2 %, Thickness >=12.7 mm	>= 29700 psi @Strain 0.2 %, Thickness >=0.500 in
	>= 310 MPa @Strain 0.2 %, Thickness <=12.7 mm	>= 45000 psi @Strain 0.2 %, Thickness <=0.500 in
	>= 310 MPa @Strain 0.2 %, Thickness <=12.7 mm	>= 45000 psi @Strain 0.2 %, Thickness <=0.500 in
Elongation at Break	>= 30 % @Thickness <=12.7 mm	>= 30 % @Thickness <=0.500 in
	>= 30 % @Thickness >=12.7 mm	>= 30 % @Thickness >=0.500 in
	>= 30 % @Thickness <=12.7 mm	>= 30 % @Thickness <=0.500 in
	>= 30 % @Thickness >=12.7 mm	>= 30 % @Thickness >=0.500 in
Reduction of Area	>= 40 % @Thickness <=12.7 mm	>= 40 % @Thickness <=0.500 in
	>= 40 % @Thickness >=12.7 mm	>= 40 % @Thickness >=0.500 in
	>= 40 % @Thickness <=12.7 mm	>= 40 % @Thickness <=0.500 in
	>= 40 % @Thickness >=12.7 mm	>= 40 % @Thickness >=0.500 in
Modulus of Elasticity	193 GPa	28000 ksi
Poissons Ratio	0.29	0.29
Shear Modulus	77.0 GPa	11200 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000720 ohm-cm @Temperature 20.0 °C	0.0000720 ohm-cm @Temperature 68.0 °F
	0.000116 ohm-cm @Temperature 650 °C	0.000116 ohm-cm @Temperature 1200 °F
Magnetic Permeability	1.020	1.020	at RT

Thermal Properties	Metric	English	Comments
CTE, linear	17.3 µm/m-°C @Temperature 0.000 - 100 °C	9.61 µin/in-°F @Temperature 32.0 - 212 °F
	17.8 µm/m-°C @Temperature 0.000 - 315 °C	9.89 µin/in-°F @Temperature 32.0 - 599 °F
	18.4 µm/m-°C @Temperature 0.000 - 538 °C	10.2 µin/in-°F @Temperature 32.0 - 1000 °F
	18.7 µm/m-°C @Temperature 0.000 - 650 °C	10.4 µin/in-°F @Temperature 32.0 - 1200 °F
Specific Heat Capacity	0.500 J/g-°C @Temperature 0.000 - 100 °C	0.120 BTU/lb-°F @Temperature 32.0 - 212 °F
Thermal Conductivity	16.2 W/m-K @Temperature 0.000 - 100 °C	112 BTU-in/hr-ft²-°F @Temperature 32.0 - 212 °F
	21.5 W/m-K @Temperature 500 °C	149 BTU-in/hr-ft²-°F @Temperature 932 °F
Melting Point	1400 - 1455 °C	2550 - 2651 °F
Solidus	1400 °C	2550 °F
Liquidus	1455 °C	2651 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.080 %	<= 0.080 %
Chromium, Cr	18 - 20 %	18 - 20 %
Iron, Fe	66.345 - 74 %	66.345 - 74 %	As remainder
Manganese, Mn	<= 2.0 %	<= 2.0 %
Nickel, Ni	8.0 - 10.5 %	8.0 - 10.5 %
Phosphorus, P	<= 0.045 %	<= 0.045 %
Silicon, Si	<= 1.0 %	<= 1.0 %
Sulfur, S	<= 0.030 %	<= 0.030 %

Descriptive Properties
Specification	ASTM A 276

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