AISI 5130 Alloy Steel (UNS G51300)

Sep 27 2012

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations

Introduction

Alloy steels are designated by AISI four-digit numbers. The first two digits represent the main alloying elements, and the last two digits represent the carbon content present in the alloy in hundredth of a percent. They comprise different kinds of steels which exceed the composition limits of Mn, C, Mo, Si, Ni, Va, and B in the carbon steels. They respond more quickly to mechanical and heat treatments than the carbon steels.

The following datasheet wifocuses on AISI 5130 alloy steel in more detail.

Chemical Composition

The following table shows the chemical composition of AISI 5130 alloy steel.

Element Content (%)
Iron, Fe 97.295 - 98.07
Chromium, Cr 0.800 - 1.10
Manganese, Mn 0.700 - 0.900
Carbon, C 0.280 - 0.330
Silicon, Si 0.150 - 0.300
Sulfur, S 0.0400
Phosphorous, P 0.0350

Physical Properties

The physical properties of AISI 5130 alloy steel are tabulated below.

Properties Metric Imperial
Density 7.83 g/cm3 0.283 lb/in³

Mechanical Properties

The mechanical properties of AISI 5130 alloy steel are outlined in the following table.

Properties Metric Imperial
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Hardness, Brinell (annealed) 170 170
Hardness, Brinell (normalized) 241 241
Hardness, Knoop (converted from Brinell hardness) 191 191
Hardness, Rockwell B (converted from Brinell hardness) 86 86
Hardness, Vickers (converted from Brinell hardness) 178 178
Machinability (annealed and cold drawn. Based on 100 machinability for AISI 1212 steel) 70 70

Thermal Properties

The thermal properties of AISI 5130 alloy steel are given in the following table.

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

Other Designations

Other designations that are equivalent to AISI 5130 alloy steel include:

  • ASTM A322
  • ASTM A331
  • ASTM A505
  • ASTM A519
  • SAE J404
  • SAE J412
  • SAE J770

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