Carbon Steel AISI 1018 Forgings | ASTM A576 UNS G10180 Specifications

Carbon Steel AISI 1018 Forgings

G10180, A576

AISI 1018 carbon steel is a free machining grade that is the most commonly available grade around the world. Although its mechanical properties are not very unique, it still can be easily formed, machined, welded and fabricated.
There are many different categories of steel, and carbon steels are one such category that contains 0.12 to 2% carbon in them. The steel gains hardness and strength with heat treatment when the carbon percentage content increases; however its ductility is reduced.

Carbon Steel AISI 1018 Forgings Properties

UNS G10180 Forgings Chemical Requirements

UNS DesignationA Grade Heat Chemical Ranges and Limits, %
C Mn P, max S, maxB Pb
G10180 1018 0.15-0.20 0.60-0.90 0.040 0.050 ...

UNS G10180 Forgings Mechanical Requirements

Properties Metric Imperial
Tensile strength 440 MPa 63800 psi
Yield strength 370 MPa 53700 psi
Modulus of elasticity 205 GPa 29700 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poisson’s ratio 0.29 0.29
Elongation at break (in 50 mm) 15% 15%
Hardness, Brinell 126 126
Hardness, Knoop (converted from Brinell hardness) 145 145
Hardness, Rockwell B (converted from Brinell hardness) 71 71
Hardness, Vickers (converted from Brinell hardness) 131 131
Machinability (based on AISI 1212 steel. as 100 machinability) 70 70

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