AISI 1046 Carbon Steel (UNS G10460)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations

Introduction

Steels containing carbon as the major alloying element are referred as carbon steels. They may also consist of up to 1.2% of manganese and 0.4% of silicon, as well as other alloying elements such as chromium, aluminium, molybdenum, and copper in small quantities.

The following datasheet gives an overview of the AISI 1046 carbon steel.

Chemical Composition

The chemical composition of the AISI 1046 carbon steel is tabulated below.

Element Content (%)
Iron, Fe 98.41 - 98.88
Manganese, Mn 0.70 - 1.0
Carbon, C 0.420 - 0.50
Sulfur, S ≤ 0.050
Phosphorous, P ≤ 0.040

Physical Properties

The following table outlines the physical properties of the AISI 1046 carbon steel.

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

Mechanical Properties

The mechanical properties of the cold drawn AISI 1046 carbon steel are given in the following table.

Properties Metric Imperial
Tensile strength 650 MPa 94300 psi
Yield strength 545 MPa 79000 psi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80.0 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 12% 12%
Reduction of area 35% 35%
Hardness, Brinell 187 187
Hardness, Knoop (converted from Brinell hardness) 209 209
Hardness, Rockwell B (converted from Brinell hardness) 90 90
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 10 10
Hardness, Vickers (converted from Brinell hardness) 196 196
Machinability (based on AISI 1212 steel. as 100 machinability.) 55 55

Thermal Properties

The following table shows thermal properties of the AISI 1046 carbon steel.

Properties Metric Imperial
Thermal expansion co-efficient (@ 0-100°C/32-212°F) 11.5 µm/m°C 6.39 µin/in°F
Thermal conductivity 49.8 W/mK 346 BTU in/hr.ft².°F

Other Designations

Other designations that are equivalent to the AISI 1046 carbon steel include:

  • ASTM A29
  • ASTM A510
  • ASTM A576
  • ASTM A830
  • SAE J1397
  • SAE J403
  • SAE J412
  • SAE J414

Comments

  1. DRAGAN BELJAN DRAGAN BELJAN U.A.E. says:

    IS THIS MATERIAL SUITABLE FOR TORSION BARS???

    WHAT IS A MAJOR DIFFERENCE BETWEEN THIS MATERIAL AND C45?

    THANKS

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of AZoM.com.

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