AISI 4340 Steel, oil quenched 800°C (1470°F), 540°C (1000°F) temper, 25 mm round

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AISI 4340 Steel, oil quenched 800°C (1470°F), 540°C (1000°F) temper, 25 mm round
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Material Notes:	AISI 4340 has a favorable response to heat treatment (usually oil quenching followed by tempering) and exhibits a good combination of ductility and strength when treated thusly. Uses include piston pins, bearings, ordnance, gears, dies, and pressure vessels.
Key Words:	alloy steels, UNS G43400, AMS 5331, AMS 6359, AMS 6414, AMS 6415, ASTM A322, ASTM A331, ASTM A505, ASTM A519, ASTM A547, ASTM A646, MIL SPEC MIL-S-16974, B.S. 817 M 40 (UK), SAE J404, SAE J412, SAE J770, DIN 1.6565, JIS SNCM 8, IS 1570 40Ni2Cr1Mo28, IS 1570 40NiCr1Mo15
Vendors:

Available Properties

Density
Hardness, Brinell
Hardness, Knoop, Converted from Brinell
Hardness, Rockwell B, Converted from Brinell
Hardness, Rockwell C, Converted from Brinell
Hardness, Vickers, Converted from Brinell
Tensile Strength, Ultimate
Tensile Strength, Yield
Elongation at Break
Reduction of Area
Modulus of Elasticity
Bulk Modulus, Estimated from elastic modulus
Poissons Ratio, Typical for steel
Machinability, annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus, Estimated from elastic modulus
Electrical Resistivity
Electrical Resistivity
Electrical Resistivity
Electrical Resistivity
CTE, linear, specimen oil hardened, 600°C (1110°F) temper
CTE, linear, 1.88% Ni, normalized and tempered
CTE, linear, specimen oil hardened, 600°C (1110°F) temper
CTE, linear, specimen oil hardened, 600°C (1110°F) temper
CTE, linear, 1.88% Ni, normalized and tempered
CTE, linear, 1.90% Ni, quenched, tempered
CTE, linear, specimen oil hardened, 600°C (1110°F) temper
Specific Heat Capacity, Typical 4000 series steel
Thermal Conductivity, Typical steel
Carbon, C
Chromium, Cr
Iron, Fe, As remainder
Manganese, Mn
Molybdenum, Mo
Nickel, Ni
Phosphorus, P
Silicon, Si
Sulfur, S

Property Data

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