ThePipingMart Blog Grades SAE/AISI 1547 Steel (UNS G15470) – Composition, Properties and Uses

SAE/AISI 1547 Steel (UNS G15470) – Composition, Properties and Uses

SAE/AISI 1547 Steel

SAE/AISI 1547 steel, recognized as UNS G15470, proves valuable in diverse industrial applications. This medium-carbon alloy excels with a balanced blend of strength and ductility, making it an ideal selection across various uses. Commonly employed in structures like bridges and buildings, as well as heavy machinery, its composition ensures suitability for high-stress environments. With a chemical makeup incorporating carbon, manganese, and silicon, SAE/AISI 1547 achieves a harmonious combination of strength and toughness, making it a dependable choice in engineering applications. Its ease of machining and welding further enhances its versatility, making UNS G15470 steel optimal for scenarios demanding a blend of strength, durability, and ease of manufacturing.

What Forms of AISI 1547 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 1547 Composition

AISI 1547 steel, a medium-carbon alloy, typically contains varying proportions of carbon, manganese, and silicon. This well-balanced composition contributes to the steel’s excellent combination of strength and ductility, making it a versatile choice for various industrial applications requiring reliability in high-stress environments.

Element Content (%)
Iron, Fe 97.75 – 98.22
Manganese, Mn 1.35 – 1.65
Carbon, C 0.430 – 0.510
Sulfur, S ≤ 0.050
Phosphorous, P ≤ 0.040

AISI 1547 Physical Properties

AISI 1547 steel showcases essential physical attributes for diverse applications. Boasting a harmonious blend of strength and ductility, this medium-carbon alloy ensures dependability in high-stress conditions. Its distinct physical traits contribute to its appropriateness for various industrial uses, guaranteeing efficient performance in challenging environments.

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

AISI 1547 Thermal Properties

AISI 1547 steel’s thermal properties are vital for its performance. These include thermal conductivity and specific heat, influencing the material’s ability to transfer and store heat. Understanding these properties is crucial in various industrial applications where temperature considerations significantly affect performance and reliability.

Properties Metric Imperial
Thermal expansion co-efficient (@ 20°C/68°F, typical steel) 11.5 µm/m°C 6.39 µin/in°F
Thermal conductivity (typical steel) 51.9 W/mK 360 BTU in/hr.ft².°F

AISI 1547 Mechanical Properties

AISI 1547 steel showcases noteworthy mechanical properties, offering a harmonious combination of strength and ductility. This medium-carbon alloy is adeptly tailored for diverse industrial applications. Its commendable mechanical characteristics, including resilience in high-stress environments, make it a prime choice for engineering applications where robust performance is imperative. The balance in its mechanical attributes underscores its versatility, making AISI 1547 a reliable and optimal material for applications demanding strength and flexibility.

Properties Metric Imperial
Tensile strength 710 MPa 103000 psi
Yield strength 605 MPa 87700 psi
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
Elongation at break 10% 10%
Reduction of area 28% 28%
Hardness, Brinell 207 207
Hardness, Knoop (converted from Brinell hardness) 229 229
Hardness, Rockwell B (converted from Brinell hardness) 93 93
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 15 15
Hardness, Vickers (converted from Brinell hardness) 217 217
Machinability (based on 100 machinability for AISI 1212 steel) 40 40

AISI 1547 Equivalent

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

AISI 1547 Corrosion Resistance

UNS G15470 steel has excellent corrosion resistance because it is made up of chromium, nickel, and molybdenum. These elements prevent oxidation on the surface of the material, which can cause wear over time. Additionally, SAE/AISI 1547 steel does not rust easily in water or other corrosive environments due to its high chromium and nickel content. This makes it an ideal choice for use in industries such as automotive manufacturing, where corrosion resistance is key.

AISI 1547 Heat Resistance

The addition of chromium also gives SAE/AISI 1547 steel good heat resistance properties. It can withstand temperatures up to 1250°F (677°C) without losing its structural integrity or becoming brittle. This makes it suitable for use in applications that require frequent exposure to high temperatures, such as power plants or oil refineries. Additionally, the heat treatment process can further increase the heat resistance properties of SAE/AISI 1547 steel by altering its microstructure which can make it more resistant to higher temperatures.

AISI 1547 Machining & Welding

SAE/ AISI 1547 has excellent machinability thanks to its low carbon content and is easy to weld with conventional methods like oxyacetylene welding or TIG welding. It is also possible to join this material through brazing or soldering if desired; however, these methods are not recommended for critical applications since they may not be able to provide a strong enough bond between two pieces of material.

AISI 1547 Uses

Due to its strength and toughness properties, SAE/AISI 1547 is often used for heavy-duty construction projects where extra strength is needed, such as bridges or buildings with large spans between support beams.

AISI 1547 Uses in Industries

  • Solar Energy
  • Wind Energy
  • Electric Vehicles
  • Microgrids
  • Energy Storage


SAE / AISI 1547 is a versatile material with good corrosion resistance, heat resistance, and machining capabilities that make it a great choice for many industrial applications. From automotive manufacturing to heavy-duty construction projects, this material can provide you with reliable performance time after time while still being relatively easy to work with compared to other materials available on the market today. If you are looking for an all-around dependable material that can stand up against even the toughest demands, then look no further than SAE/AISI 1547!

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