AISI 4118 Steel, annealed at 870°C (1600°F), furnace cooled at 11°C (20°F)/hour, 25 mm (1 in.) round

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.

AISI 4118 Steel, annealed at 870°C (1600°F), furnace cooled at 11°C (20°F)/hour, 25 mm (1 in.) round
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes:	Oil quenched. Forging temp.: 1230°C (2250°F) max. Carburizing temp.: 885 - 925°C. Hardening temp.: 830°C. Tempering temp.: 120 - 185°C.
Key Words:	alloy steels, UNS G41180, ASTM A322, ASTM A331, ASTM A505, ASTM A519
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	Metric	English	Comments

Density	7.85 g/cc	0.284 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	137	137
Hardness, Knoop	156	156	Converted from Brinell
Hardness, Rockwell B	75	75	Converted from Brinell
Hardness, Vickers	143	143	Converted from Brinell
Tensile Strength, Ultimate	517 MPa	75000 psi
Tensile Strength, Yield	365 MPa	52900 psi
Elongation at Break	33 %	33 %	in 50 mm
Reduction of Area	63.7 %	63.7 %
Modulus of Elasticity	205 GPa	29700 ksi	Typical for steel
Bulk Modulus	160 GPa	23200 ksi	Typical for steel
Poissons Ratio	0.29	0.29	Calculated
Machinability	60 %	60 %	hot rolled and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000245 ohm-cm	0.0000245 ohm-cm	Typical 4000 series steel

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.475 J/g-°C	0.114 BTU/lb-°F	Typical 4000 series steel
Thermal Conductivity	44.5 W/m-K	309 BTU-in/hr-ft²-°F	Typical steel

Component Elements Properties	Metric	English	Comments
Carbon, C	0.18 - 0.23 %	0.18 - 0.23 %
Chromium, Cr	0.40 - 0.60 %	0.40 - 0.60 %
Iron, Fe	97.7 - 98.49 %	97.7 - 98.49 %	As remainder
Manganese, Mn	0.70 - 0.90 %	0.70 - 0.90 %
Molybdenum, Mo	0.080 - 0.15 %	0.080 - 0.15 %
Phosphorus, P	<= 0.035 %	<= 0.035 %
Silicon, Si	0.15 - 0.35 %	0.15 - 0.35 %
Sulfur, S	<= 0.040 %	<= 0.040 %

References for this datasheet.

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:
AISI 4130 Steel, annealed at 865°C (1585°F), furnace cooled 11°C (20°F)/hour to 680°C (1255°F), air cooled, 25 mm (1 in.) round
SCM420 Carburizing Bearing Steel (Composition Spec)
AISI 4118 Steel, normalized at 910°C (1670°F), air cooled, 25 mm (1 in.) round
AISI 8620 Steel, annealed 13 mm (0.5 in.) round
AISI 4118 Steel, mock carburized at 925°C (1700°F) for 8 hours, reheated to 830°C (1525°F), oil quenched, 150°C (300°F) temper, 150°C (300°F) temper, 14 mm (0.55 in.) round

M4118A / 7461

	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