ThePipingMart Blog Grades SAE/AISI 5130 Alloy Steel (UNS G51300) – Composition, Properties and Uses

SAE/AISI 5130 Alloy Steel (UNS G51300) – Composition, Properties and Uses

SAE/AISI 5130 Steel

SAE/AISI 5130 is a low-alloy steel composed of chromium, manganese, and carbon. UNS G51300 has great strength and durability, making it an excellent choice for numerous industrial applications. SAE/AISI 5130 Alloy Steel, also known as UNS G51300, is a low-alloy steel with a significant place in the manufacturing industry. The AISI 5130 Alloy Steel is a cost-effective option that can be heat-treated to enhance its mechanical properties, making it suitable for various applications. The steel’s unique composition consists of carbon, manganese, chromium, and molybdenum, providing excellent strength, toughness, and wear resistance. The SAE-AISI 5130 steel is widely used in the automotive industry, particularly for manufacturing gears, shafts, and other high-stress components. The AISI 5130 Alloy Steel’s exceptional mechanical properties and cost-effectiveness make it a sought-after material for several industrial applications. This guide will look at the uses, corrosion resistance, heat resistance, heat treatment, machining, and welding properties of 5130 Alloy Steel.

What Forms of AISI 5130 is Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Pipe Fittings
  • Forged Fitting
  • Instrumentation Fittings

AISI 5130 Composition

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

AISI 5130 Physical Properties

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

AISI 5130 Mechanical Properties

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

AISI 5130 Thermal Properties

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

AISI 5130 Equivalent

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

AISI 5130 Uses

SAE/AISI 5130 is an ideal material for numerous industries due to its many uses. This type of steel is often used in the production of axles, shafts, gears, pins, and other automotive components. Its strength makes it a popular choice in the construction industry as well—it’s often used in structural beams and columns as well as in transmission towers. Additionally, it can be used to make knives and cutting tools due to its high wear resistance.

AISI 5130 Uses in Industries

Automotive Industry

One of the most common uses of AISI 5130 steel is in the automotive industry. This type of steel is often used to produce engine components, such as gears, shafts, and connecting rods. It is also commonly used in suspension systems and other structural parts due to its high strength and durability.

Aerospace Industry

AISI 5130 steel is also widely used in the aerospace industry for its high strength-to-weight ratio. It is commonly used in aircraft landing gear and other structural components requiring strength and lightweight. Its corrosion resistance also makes it a popular choice for aircraft parts.

Oil and Gas Industry

The oil and gas industry also relies on AISI 5130 steel for various applications. Its high tensile strength makes it suitable for drilling equipment, pipelines, and wellheads. The addition of chromium also provides excellent resistance to corrosion, making it ideal for use in harsh environments.

Construction Industry

AISI 5130 steel is often used in the construction industry for structural support beams, columns, and other load-bearing elements. Its high strength allows for constructing taller buildings with less material needed, reducing overall costs.

Manufacturing Industry

Various manufacturing industries utilize AISI 5130 steel for various applications due to its versatility and reliability. Some common uses include machinery parts, tools, and equipment components that require high strength and durability under heavy loads or extreme conditions.

AISI 5130 Corrosion Resistance

SAE/AISI 5130 has good corrosion resistance properties when compared to other steels. It doesn’t corrode easily due to its chromium content which also helps prevent rusting. The alloying elements present in this type of steel provide additional protection against corrosion caused by exposure to saltwater or acidic environments. Additionally, it can be galvanized for further corrosion protection if needed.

AISI 5130 Heat Resistance

The heat resistance properties of SAE/AISI 5130 make it suitable for use in applications where temperatures are higher than normal operating temperatures, such as parts exposed to exhaust systems or hot air chambers. It also has good thermal conductivity which helps maintain consistent temperatures across parts when exposed to extreme heat sources like furnaces or kilns. Heat Treatment of SAE / AISI 5130 Steel

AISI 5130 Heat Treating

Heat treating can be used on SAE/AISI 5130 steel so that you can attain the desired mechanical properties, such as hardness or ductility, depending on what your application requires. This type of steel responds well to quenching and tempering processes which can help you achieve the desired results with minimal effort and time investment compared with other materials, such as stainless steel, that require more complicated treatments for optimal performance results.   Machining of SAE / AISI 5130 Steel

AISI 5130 Machining

Machining operations on this type of steel may require coolant lubrication due to its tendency to work hard during machining operations at high speeds or when using small-diameter tools that don’t provide much support during cutting operations. It also responds well to grinding operations if surface finish requirements are necessary for your application needs.

AISI 5130 Welding

Welding is possible with this type of steel using standard arc welding techniques, including gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), and shielded metal arc welding (SMAW). Preheating prior welds may help reduce distortion during cooling cycles but isn’t always necessary depending on joint design requirements or part thicknesses being welded together.


As you can see from the above information, SAE / AISI 5130 offers excellent versatility, corrosion resistance, heat resistance, heat treatability, machinability, and weldability. These qualities make it suitable for many applications ranging from automotive components, structural beams & columns, cutting tools, and transmission towers.

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