AISI 5150 Alloy Steel (UNS G51500)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations

Introduction

Alloy steels contain many types of steels whose compositions are more than the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B fixed for carbon steels. These steels are more responsive to mechanical and heat treatments than carbon steels.

The following datasheet will provide details about AISI 5150 alloy steel.

Chemical Composition

The following table shows the chemical composition of AISI 5150 alloy steel.

Element Content (%)
Iron, Fe 97.29-97.97
Manganese, Mn 0.700-0.900
Chromium, Cr 0.700-0.900
Carbon, C 0.480-0.530
Silicon, Si 0.150-0.300
Sulfur, S ≤ 0.0400
Phosphorous, P ≤ 0.0350

Physical Properties

The physical properties of AISI 5150 alloy steel are outlined in the following table.

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³

Mechanical Properties

The mechanical properties of annealed AISI 5150 alloy steel are provided in the table below.

Properties Metric Imperial
Tensile strength 675 MPa 97900 psi
Yield strength 360 MPa 52200 psi
Elastic modulus 190-210 GPa 27557-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Izod Impact 26 J 19.2 ft.lb
Hardness, Brinell 197 197
Hardness, Knoop (converted from Brinell hardness) 219 219
Hardness, Rockwell B (converted from Brinell hardness) 92 92
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) 13 13
Hardness, Vickers (converted from Brinell hardness) 207 207
Machinability (annealed and cold drawn, based on 100 machinability for AISI 1212 steel) 60 60

Thermal Properties

The thermal properties of AISI 5150 alloy steel are given in the table below.

Properties Metric Imperial
Thermal conductivity 46.6 W/mK 323 BTU in/hr.ft².°F

Other Designations

Equivalent materials to AISI 5150 alloy steel are as follows.

AFNOR 42 C 2 AFNOR 45 C 2 DIN 1.7006 ASTM A322 ASTM A331 ASTM A505
SAE J770 ASTM A29 ASTM A322 ASTM A331 ASTM A506 ASTM A519
ASTM A752 SAE J1397 SAE J404 SAE J412


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