Haynes Hastelloy® C-4 alloy, all-weld metal, as welded, GTAW

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

(Viewing data as-entered. Click here to return)

Haynes Hastelloy® C-4 alloy, all-weld metal, as welded, GTAW
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	Nickel-chromium-molybdenum alloy with outstanding high-temperature stability as evidenced by high ductility and corrosion resistance even after aging in the 1200 to 1900°F (649 to 1038°C) range. This alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. C-4 alloy also has excellent resistance to stress-corrosion cracking and to oxidizing atmospheres up to 1900°F (1038°C). HASTELLOY C-4 alloy has exceptional resistance to wide variety of chemical process environments. These include hot contaminated mineral acids, solvents, chlorine and chlorine contaminated media (organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions. Laboratory precipitation studies on C-4 alloy indicate that the intermetallic precipitates (Mu phase) associated with other nickel alloys in the 1200 to 2000°F (649 to 1093°C) temperature range have not been detected. Fine intergranular M6C carbides can form but their damaging effect is minimal. HASTELLOY C-4 alloy can be forged, hot-upset, and impact extruded. Although the alloy tends to work-harden, it can be successfully deep-drawn, spun, press formed or punched. All of the common methods of welding can be used to weld HASTELLOY C-4 alloy, although the oxy-acetylene and submerged arc processes are not recommended when the fabricated item is intended for use in corrosion service. Special precautions should be taken to avoid excessive heat input. Wrought forms of HASTELLOY C-4 alloy are furnished in the solution heat-treated condition unless otherwise specified. C-4 alloy is solution heat-treated at 1950°F (1066°C) and rapid quenched. Data provided by the manufacturer, Haynes International, Inc.
Key Words:	UNS N06455; ASME SB-574, ASME SB-575, ASME SB-6119, SB-622 and ASME SB-626
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Original Value	Comments

Density	8.64 g/cc	at RT

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	738 MPa
Tensile Strength, Yield	492 MPa @Strain 0.2 %
Elongation at Break	42 %	in 50.8 mm
Modulus of Elasticity	211 GPa	RT
	141 GPa @Temperature 982 °C
	152 GPa @Temperature 871 °C
	162 GPa @Temperature 760 °C
	171 GPa @Temperature 649 °C
	179 GPa @Temperature 538 °C
	187 GPa @Temperature 427 °C
	194 GPa @Temperature 316 °C
	201 GPa @Temperature 204 °C
	207 GPa @Temperature 93.0 °C

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000125 ohm-cm @Temperature 23.0 °C
	0.000125 ohm-cm @Temperature 100 °C
	0.000126 ohm-cm @Temperature 200 °C
	0.000127 ohm-cm @Temperature 300 °C
	0.000128 ohm-cm @Temperature 400 °C
	0.000129 ohm-cm @Temperature 500 °C
	0.000132 ohm-cm @Temperature 600 °C

Thermal Properties	Original Value	Comments
CTE, linear	10.8 µm/m-°C @Temperature 20.0 °C
	11.9 µm/m-°C @Temperature 20.0 - 204 °C
	12.6 µm/m-°C @Temperature 20.0 - 316 °C
	13.3 µm/m-°C @Temperature 20.0 - 427 °C
	13.3 µm/m-°C @Temperature 20.0 - 538 °C
	13.5 µm/m-°C @Temperature 20.0 - 649 °C
	14.4 µm/m-°C @Temperature 20.0 - 760 °C
	14.9 µm/m-°C @Temperature 24.0 - 871 °C
	15.7 µm/m-°C @Temperature 20.0 - 982 °C
Specific Heat Capacity	0.406 J/g-°C @Temperature 0.000 °C
	0.427 J/g-°C @Temperature 100 °C
	0.448 J/g-°C @Temperature 200 °C
	0.465 J/g-°C @Temperature 300 °C
	0.477 J/g-°C @Temperature 400 °C
	0.490 J/g-°C @Temperature 500 °C
	0.502 J/g-°C @Temperature 600 °C
Thermal Conductivity	10.1 W/m-K @Temperature 23.0 °C
	11.4 W/m-K @Temperature 100 °C
	13.2 W/m-K @Temperature 200 °C
	15.0 W/m-K @Temperature 300 °C
	16.7 W/m-K @Temperature 400 °C
	18.4 W/m-K @Temperature 500 °C
	20.5 W/m-K @Temperature 600 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.010 %
Chromium, Cr	14 - 18 %
Cobalt, Co	<= 2.0 %
Iron, Fe	<= 3.0 %
Manganese, Mn	<= 1.0 %
Molybdenum, Mo	14 - 17 %
Nickel, Ni	58 %	As Remainder
Phosphorus, P	<= 0.025 %
Silicon, Si	<= 0.080 %
Sulfur, S	<= 0.010 %
Titanium, Ti	<= 0.70 %

Descriptive Properties
Average Oxidation Rate per 100-hour test period (mm)	0.004	at 1038°C
Thermal Diffusivity	0.028 cm²/s	at 23°C
	0.031 cm²/s	at 100°C
	0.033 cm²/s	at 200°C
	0.037 cm²/s	at 300°C
	0.04 cm²/s	at 400°C
	0.043 cm²/s	at 500°C
	0.047 cm²/s	at 600°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

Users viewing this material also viewed the following:
Haynes Hastelloy® C-4 alloy, sheet, heat treated at 1066°C, rapid quenched
Industeel URANUS® 47N+ 25 Cr Super Duplex Stainless Steel with PREN = 40
MetalTek MTEK CW-2M Cast UNS N26455 Severe Corrosion and Heat Resistant Alloy
Molybdenum, Mo, Annealed
446 Stainless Steel, Annealed Bar

NHC4BZ / 17201

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message