AISI 1045 Medium and Tensile Steel Heat Treatment Process

AISI 1045 Medium steel is a medium tensile steel, AISI 1045 tensile steel is characterized by good weld ability, good machine ability, and high strength and impact properties in either the normalized or hot rolled condition. 1045 Steel has a tensile strength of 570 - 700 MPa and hardness ranging between 170 and 210.

Chemical Composition of 1045 Steel

Element	Content
Carbon, C	0.420 - 0.50 %
Iron, Fe	98.51 - 98.98 %
Manganese, Mn	0.60 - 0.90 %
Phosphorous, P	≤ 0.040 %
Sulfur, S	≤ 0.050 %

AISI 1045 Medium Steel Physical Properties

Physical Properties	Metric	Imperial
Density	7.87 g/cc	0.284 lb/in3

AISI 1045 Tensile Steel Mechanical Properties

Mechanical Properties	Metric	Imperial
Hardness, Brinell	163	163
Hardness, Knoop (Converted from Brinell hardness)	184	184
Hardness, Rockwell B (Converted from Brinell hardness)	84	84
Hardness, Vickers (Converted from Brinell hardness)	170	170
Tensile Strength, Ultimate	565 MPa	81900 psi
Tensile Strength, Yield	310 MPa	45000 psi
Elongation at Break (in 50 mm)	16.0 %	16.0 %
Reduction of Area	40.0 %	40.0 %
Modulus of Elasticity (Typical for steel)	200 GPa	29000 ksi
Bulk Modulus (Typical for steel)	140 GPa	20300 ksi
Poissons Ratio (Typical For Steel)	0.290	0.290
Shear Modulus (Typical for steel)	80 GPa	11600 ksi

AISI 1045 Steel Heat Treatment Process
1，Forging
2，Annealing
3，Normalizing
4，Stress relieving
5，Hardening

6，Tempering
learn more:http://www.ice-steels.com/News/AISI-1045-Medium-and-Tensile-Steel-Heat-Treatment-Process.html

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