Special Metals UDIMAR® alloy 300 Fe-Ni Maraging Steel

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.

Special Metals UDIMAR® alloy 300 Fe-Ni Maraging Steel
Categories:	Metal; Ferrous Metal; Maraging Steel
Material Notes:	UDIMAR® alloy 300 (UNS K93120) is an age-hardenable (maraging) iron-nickel steel combining ultra-high strength, toughness and resistance to crack propagation. The alloy is well suited to applications where heat treatment distortion and dimensional changes much be minimized and where high fracture toughness is required, such as rocket motor casings, light aircraft landing gear, power shafts and low temperature tooling. The 18% nickel maraging steels offer a unique combination of properties not available from conventional low alloy ultra-high strength steels. They offer high strength, high ductility and toughness, and resistance to crack propagation. Hardening is accomplished by a simple aging cycle of 3 hours at 900°F (482°C) followed by air cooling. UDIMAR alloy 300 provides through hardening without quenching, freedom from decarburization, minimal distortion during aging, good formability, machinability, and weldability and a low coefficient of thermal expansion. Information Provided by Special Metals Corporation
Key Words:	UNS K93120; AMS 6514
Vendors:	Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494. Click here to view all available suppliers 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	Metric	English	Comments

Density	8.00 g/cc	0.289 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	30 @Temperature 816 °C, Time 3600 sec	30 @Temperature 1500 °F, Time 1.00 hour	Solution Annealed, AC
	52 @Temperature 482 °C, Time 10800 sec	52 @Temperature 900 °F, Time 3.00 hour	Solution Annealed Plus Aged, AC
Tensile Strength, Ultimate	1030 MPa @Temperature 816 °C, Time 3600 sec	150000 psi @Temperature 1500 °F, Time 1.00 hour	Solution Annealed, AC
	2000 MPa @Temperature 482 °C, Time 10800 sec	290000 psi @Temperature 900 °F, Time 3.00 hour	Solution Annealed Plus Aged, AC
Tensile Strength, Yield	827 MPa @Strain 0.2 %, Temperature 816 °C	120000 psi @Strain 0.2 %, Temperature 1500 °F	Solution Annealed, AC
	1930 MPa @Strain 0.2 %, Temperature 482 °C	280000 psi @Strain 0.2 %, Temperature 900 °F	Solution Annealed Plus Aged, AC
	827 MPa @Strain 0.2 %, Time 3600 sec	120000 psi @Strain 0.2 %, Time 1.00 hour	Solution Annealed, AC
	1930 MPa @Strain 0.2 %, Time 10800 sec	280000 psi @Strain 0.2 %, Time 3.00 hour	Solution Annealed Plus Aged, AC
Elongation at Break	8.0 % @Temperature 482 °C, Time 10800 sec	8.0 % @Temperature 900 °F, Time 3.00 hour	Solution Annealed Plus Aged, AC
	16 % @Temperature 816 °C, Time 3600 sec	16 % @Temperature 1500 °F, Time 1.00 hour	Solution Annealed, AC
Reduction of Area	40 % @Temperature 482 °C, Time 10800 sec	40 % @Temperature 900 °F, Time 3.00 hour	Solution Annealed Plus Aged, AC
	70 % @Temperature 816 °C, Time 3600 sec	70 % @Temperature 1500 °F, Time 1.00 hour	Solution Annealed, AC

Electrical Properties	Metric	English	Comments
Magnetic Permeability	77.5	77.5	at 200 Oersted (15.9 kA/m)

Thermal Properties	Metric	English	Comments
CTE, linear	8.64 µm/m-°C @Temperature 93.0 °C	4.80 µin/in-°F @Temperature 199 °F
Specific Heat Capacity	0.335 J/g-°C	0.0801 BTU/lb-°F
Thermal Conductivity	19.6 W/m-K	136 BTU-in/hr-ft²-°F
Melting Point	1427 - 1454 °C	2601 - 2649 °F
Solidus	1427 °C	2601 °F
Liquidus	1454 °C	2649 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	0.050 - 0.15 %	0.050 - 0.15 %
Carbon, C	<= 0.030 %	<= 0.030 %
Cobalt, Co	8.0 - 9.5 %	8.0 - 9.5 %
Iron, Fe	65.1 - 68.8 %	65.1 - 68.8 %	Balance
Manganese, Mn	<= 0.10 %	<= 0.10 %
Molybdenum, Mo	4.6 - 5.2 %	4.6 - 5.2 %
Nickel, Ni	18 - 19 %	18 - 19 %
Phosphorus, P	<= 0.010 %	<= 0.010 %
Silicon, Si	<= 0.10 %	<= 0.10 %
Sulfur, S	<= 0.010 %	<= 0.010 %
Titanium, Ti	0.55 - 0.80 %	0.55 - 0.80 %

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 view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
ATI Allvac® VascoMax® C-300 Specialty Steel, Heat Treatment: 927°C (1700°F) + Age
AISI Grade 18Ni (300) Maraging Steel solution annealed at 815°C (1500°F) for 1 hour, air cooled, aged at 480°C (900°F) for 3 hours
AISI Grade 18Ni (300) Maraging Steel, Aged, round bar, tested longitudinal, 16 mm
AISI Grade 18Ni (300) Maraging Steel nominal annealed properties
304 Stainless Steel

NINDA22 / 98913

	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