AISI 4422 Steel, heat treated in 13.7 mm rounds, reheated to 870°C (1600°F), 150°C (300°F) temper

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AISI 4422 Steel, heat treated in 13.7 mm rounds, reheated to 870°C (1600°F), 150°C (300°F) temper
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes:	Heat treatment: Normalized at 925°C (1700°F) in 32 mm rounds, machined to 13.7 mm rounds, pseudo carburized at 925°C (1700°F) for 8 hrs., box cooled to RT, reheated to 870°C, oil quenched, 150°C (300°F) temper, tested in 12.8 mm rounds.
Key Words:	alloy steels, UNS G44220, ASTM A519, SAE J404, SAE J412, SAE J770, DIN 1.5419, JIS SCPH 11
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Physical Properties	Metric	English	Comments

Density	7.85 g/cc	0.284 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	277	277
Hardness, Knoop	302	302	Converted from Brinell
Hardness, Rockwell B	99	99
Hardness, Rockwell C	28	28	Converted from Brinell
Hardness, Vickers	292	292	Converted from Brinell
Tensile Strength, Ultimate	896 MPa	130000 psi
Tensile Strength, Yield	640 MPa	92800 psi
Elongation at Break	17 %	17 %
Reduction of Area	54 %	54 %
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
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	0.20 - 0.25 %	0.20 - 0.25 %
Iron, Fe	98.125 - 98.6 %	98.125 - 98.6 %	As remainder
Manganese, Mn	0.70 - 0.80 %	0.70 - 0.80 %
Molybdenum, Mo	0.35 - 0.45 %	0.35 - 0.45 %
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.

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M4422G / 7859

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