AISI 4142 Steel, Quenched and Tempered to 380 HB

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 4142 Steel, Quenched and Tempered to 380 HB
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Material Notes:	General processing of AISI 4142: Oil quenched. Forging temp.: 1205°C (2200°F) max. Annealing temp.: 790 - 845°C. Hardening temp.: 845 - 870°C. Tempered to desired hardness. Medium hardenability. Applications include break dies, bending dies, support tooling, die holders, gears, flanges, collets, arbors, spindles, axles, clutch parts, forming rolls, wrenches and other hand tools, and various machine tool components.
Key Words:	UNS G41420, ASTM A322, ASTM A331, ASTM A505, ASTM A519, ASTM A547, SAE J404, SAE J412, SAE J770
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	380	380
Tensile Strength, Ultimate	1412 MPa	204800 psi
Tensile Strength, Yield	966 MPa	140000 psi
Reduction of Area	48 %	48 %
Modulus of Elasticity	206 GPa	29900 ksi
Bulk Modulus	163 GPa	23600 ksi	Estimated from elastic modulus
Poissons Ratio	0.29	0.29	Typical for steel
Shear Modulus	80.0 GPa	11600 ksi	Estimated from elastic modulus

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000263 ohm-cm	0.0000263 ohm-cm

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.473 J/g-°C	0.113 BTU/lb-°F
Thermal Conductivity	42.6 W/m-K	296 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.40 - 0.45 %	0.40 - 0.45 %
Chromium, Cr	0.80 - 1.1 %	0.80 - 1.1 %
Iron, Fe	>= 96.725 %	>= 96.725 %	As remainder
Manganese, Mn	0.75 - 1.1 %	0.75 - 1.1 %
Molybdenum, Mo	0.15 - 0.25 %	0.15 - 0.25 %
Phosphorus, P	<= 0.035 %	<= 0.035 %
Silicon, Si	0.15 - 0.30 %	0.15 - 0.30 %
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 4142 Steel, Annealed and Cold Drawn
AISI 4142H Steel
AISI 4140 Steel, annealed at 815°C (1500°F) furnace cooled 11°C (20°F)/hour to 665°C (1230°F), air cooled, 25 mm (1 in.) round
AISI 4140 Steel, oil quenched, 205°C (400°F) temper, 25 mm (1 in.) round
AISI 4140 Steel, normalized at 870°C (1600°F), reheated to 845°C (1550°F), oil quenched, 205°C (400°F) temper, 25 mm (1 in.) round

M4142Aa / 172254

	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