AISI 1059 Carbon Steel (UNS G10590)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations

Introduction

Carbon steels are those that have carbon as the key alloying element. They also contain up to 0.4% silicon and 1.2% manganese. In addition, the residual elements such as copper, molybdenum, aluminium, chromium and nickel are present in these steels.

AISI 1059 carbon steel has characteristics similar to that of AISI 1055 carbon steel.

The following datasheet will give an overview of AISI 1059 carbon steel.

Chemical Composition

The chemical composition of AISI 1059 carbon steel is outlined in the following table.

Element Content (%)
Iron, Fe 98.46-98.95
Carbon, C 0.55-0.65
Manganese, Mn 0.50-0.80
Sulfur, S 0.050
Phosphorous, P 0.040

Physical Properties

The physical properties of AISI 1059 carbon steel are tabulated below.

Properties Metric Imperial
Density 7.87 g/cm3 0.284 lb/in³

Mechanical Properties

The following table shows mechanical properties of the cold drawn AISI 1059 carbon steel.

Properties Metric Imperial
Izod impact (annealed at 790°C (1450°F)) 11 J 8.11 ft-lb
Izod impact (normalized at 900°C (1650°F)) 14 J 10.3 ft-lb
Izod impact (as rolled) 18 J 13.3 ft-lb
Modulus of elasticity (typical for steel) 190-210 GPa 29700-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poissons ratio 0.27-0.30 0.27-0.30

Thermal Properties

The thermal properties of AISI 1059 carbon steel are given in the following table.

Properties Metric Imperial
Thermal expansion co-efficient 11.5 µm/m°C 6.39 µin/in°F
Thermal conductivity 51.9 W/mK 360 BTU in/hr.ft².°F

Other Designations

Other designations that are equivalent to AISI 1059 carbon steel include the following:

  • ASTM A29
  • SAE J118
  • SAEJ412

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