Haynes 556® alloy, all-weld metal GTAW

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Haynes 556® alloy, all-weld metal GTAW
Categories:	Metal; Superalloy; Iron Base
Material Notes:	Effective resistance to sulfidizing, carburizing, and chlorine-bearing environments at high temperature; good oxidation resistance, fabricability, and excellent high-temperature strength; resists corrosion by molten chloride salts and is resistant to corrosion from molten zinc. Excellent forming and welding characteristics. Applications include tubing and structural members in municipal and industrial waste incinerators, rotary calciners and kilns for minerals processing, and non-rotating components in land-based gas turbines burning low-grade fuels; carbon regenerators, and in processes involving high-sulfur petroleum feedstocks; widely used for hot-dip galvanizing fixtures, spinners, and baskets, high speed furnace fans, air preheaters of diesel engines, the inner covers of coil annealing furnaces, and various high temperature applications in the aerospace industry. Data provided by the manufacturer, Haynes International, Inc.
Key Words:	UNS R30556, AMS 5874, AMS 5877, AMS 5831
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Physical Properties	Original Value	Comments

Density	8.23 g/cc	at RT

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	740 MPa
	200 MPa @Temperature 982 °C
	225 MPa @Temperature 871 °C
	380 MPa @Temperature 760 °C
	490 MPa @Temperature 648 °C
Tensile Strength, Yield	465 MPa @Strain 0.2 %
	145 MPa @Strain 0.2 %, Temperature 982 °C
	200 MPa @Strain 0.2 %, Temperature 871 °C
	290 MPa @Strain 0.2 %, Temperature 760 °C
	310 MPa @Strain 0.2 %, Temperature 648 °C
Elongation at Break	43.1 %	in 50.8 mm
	38.9 % @Temperature 760 °C	in 50.8 mm
	39.4 % @Temperature 648 °C	in 50.8 mm
	51.9 % @Temperature 871 °C	in 50.8 mm
	125.7 % @Temperature 982 °C	in 50.8 mm
Modulus of Elasticity	205 GPa	RT
	138 GPa @Temperature 1000 °C
	143 GPa @Temperature 900 °C
	148 GPa @Temperature 800 °C
	155 GPa @Temperature 700 °C
	164 GPa @Temperature 600 °C
	172 GPa @Temperature 500 °C
	179 GPa @Temperature 400 °C
	187 GPa @Temperature 300 °C
	195 GPa @Temperature 200 °C
	200 GPa @Temperature 100 °C
Charpy Impact	240 J	Samples did not break. Average of 4 or more tests.

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000952 ohm-cm	RT
	0.0000986 ohm-cm @Temperature 100 °C
	0.0001026 ohm-cm @Temperature 200 °C
	0.0001065 ohm-cm @Temperature 300 °C
	0.0001095 ohm-cm @Temperature 400 °C
	0.0001125 ohm-cm @Temperature 500 °C
	0.0001151 ohm-cm @Temperature 600 °C
	0.0001172 ohm-cm @Temperature 700 °C
	0.000119 ohm-cm @Temperature 800 °C
	0.0001207 ohm-cm @Temperature 900 °C
	0.0001223 ohm-cm @Temperature 1000 °C
	0.0001237 ohm-cm @Temperature 1100 °C

Thermal Properties	Original Value	Comments
CTE, linear	14.7 µm/m-°C @Temperature 25.0 - 100 °C
	14.9 µm/m-°C @Temperature 25.0 - 200 °C
	15.1 µm/m-°C @Temperature 25.0 - 300 °C
	15.4 µm/m-°C @Temperature 25.0 - 400 °C
	15.7 µm/m-°C @Temperature 25.0 - 500 °C
	16.1 µm/m-°C @Temperature 25.0 - 600 °C
	16.4 µm/m-°C @Temperature 25.0 - 700 °C
	16.7 µm/m-°C @Temperature 25.0 - 800 °C
	17.0 µm/m-°C @Temperature 25.0 - 900 °C
	17.1 µm/m-°C @Temperature 25.0 - 1000 °C
Specific Heat Capacity	0.464 J/g-°C	RT
	0.475 J/g-°C @Temperature 100 °C
	0.493 J/g-°C @Temperature 200 °C
	0.508 J/g-°C @Temperature 300 °C
	0.523 J/g-°C @Temperature 400 °C
	0.538 J/g-°C @Temperature 500 °C
	0.552 J/g-°C @Temperature 600 °C
	0.561 J/g-°C @Temperature 700 °C
	0.570 J/g-°C @Temperature 800 °C
	0.595 J/g-°C @Temperature 900 °C
	0.618 J/g-°C @Temperature 1000 °C
	0.638 J/g-°C @Temperature 1100 °C
Thermal Conductivity	11.1 W/m-K	RT
	13.1 W/m-K @Temperature 100 °C
	15.4 W/m-K @Temperature 200 °C
	17.3 W/m-K @Temperature 300 °C
	19.0 W/m-K @Temperature 400 °C
	20.8 W/m-K @Temperature 500 °C
	22.4 W/m-K @Temperature 600 °C
	24.0 W/m-K @Temperature 700 °C
	25.5 W/m-K @Temperature 800 °C
	27.2 W/m-K @Temperature 900 °C
	28.9 W/m-K @Temperature 1000 °C
	30.4 W/m-K @Temperature 1100 °C
Melting Point	1330 - 1415 °C
Solidus	1330 °C
Liquidus	1415 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.20 %
Carbon, C	0.10 %
Chromium, Cr	22 %
Cobalt, Co	18 %
Iron, Fe	31 %	As remainder
Lanthanum, La	0.020 %
Manganese, Mn	1.0 %
Molybdenum, Mo	3.0 %
Nickel, Ni	20 %
Nitrogen, N	0.20 %
Silicon, Si	0.40 %
Tantalum, Ta	0.60 %
Tungsten, W	2.5 %
Zirconium, Zr	0.020 %

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