ThePipingMart Blog Grades SAE/AISI 1551 Steel (UNS G15510) – Composition, Properties and Uses

SAE/AISI 1551 Steel (UNS G15510) – Composition, Properties and Uses

SAE / AISI 1551 Steel

SAE/AISI 1551 is a low-alloy steel that is widely used in many industries due to its desirable properties. It is highly resistant to corrosion, has excellent heat resistance, and can be easily machined and welded. In this blog post, we’ll explore the advantages of using SAE/AISI 1551 steel and how it can be used in various applications. When it comes to industrial-grade steel, UNS G15510 is a tried-and-true performer that’s been utilized by engineers for decades. Known alternately as SAE/AISI 1551 Steel or just AISI 1551, this alloy is valued for its toughness, ductility, and wear resistance. Comprised primarily of iron, carbon, and manganese, it also contains trace amounts of other elements that help to give it its unique mechanical properties. Overall, it’s an excellent choice for applications that require durability in challenging or corrosive environments. So whether you’re in the market for reliable materials for manufacturing, construction, or infrastructure projects, SAE/AISI 1551 Steel is worth your consideration.

What Forms of AISI 1526 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 1551 Composition

Element Weight %
C  0.45-0.56
Mn  0.85-1.15
P  0.04 (max)
S  0.05 (max)

AISI 1551 Mechanical Properties

Properties Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson’s Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25
Tensile Strength (Mpa) 1158 25 oil quenched, fine grained, tempered at 425°C
Yield Strength (Mpa) 1034
Elongation (%) 15
Reduction in Area (%) 53
Hardness (HB) 335 25 oil quenched, fine grained, tempered at 425°C

AISI 1551 Physical Properties

Quantity Value Unit
Thermal expansion 16 – 17 e-6/K
Thermal conductivity 16 – 16 W/m.K
Specific heat 500 – 500 J/kg.K
Melting temperature 1370 – 1400 °C
Service temperature 0 – 500 °C
Density 8000 – 8000 kg/m3
Resistivity 0.7 – 0.7 Ohm.mm2/m

AISI 1551 Thermal Properties

Properties Conditions
T (°C) Treatment
Thermal Conductivity (W/m-K) 42.7 100
Specific Heat (J/kg-K) 477 50-100

AISI 1551 Corrosion Resistance

One of the most important properties of SAE/AISI 1551 steel is its high level of corrosion resistance. This makes it ideal for use in applications where contact with corrosive chemicals or environments is likely. It also means that it can be used in outdoor settings without fear of rusting or other damage from exposure to water or other elements. Additionally, its corrosion resistance makes it an ideal choice for use in food processing equipment and marine applications, as well as many other industrial uses.

AISI 1551 Uses

SAE / AISI 1551 is a medium carbon steel and is often used for various manufacturing processes due to its ability to be hardened and tempered. This makes it an incredibly versatile material that can be used in defence, medical and industrial applications. For example, it’s been used in gun racks and rifle barrels, as well as medical tools such as orthopaedic screws, as well as useful in a range of other applications. Its strength and cost-effectiveness mean it’s an ideal material for demanding projects where environmental factors play a major role in deciding the right steel for the job.

AISI 1551 Uses in Industries

  • Construction
  • Automotive
  • Oil and Gas
  • Machinery
  • Aerospace

AISI 1551 Heat Resistance

SAE/AISI 1551 steel also boasts excellent heat resistance, making it an ideal choice for uses where high temperatures are expected. This makes it suitable for use in furnaces, boilers and other high-temperature applications such as automotive exhaust systems and engine components. Its heat-resistant properties also make it a great choice for cookware such as frying pans and woks, as well as stovetop grills or griddles.

AISI 1551 Heat Treatment

SAE/AISI 1551 steel also responds well to heat treatment, allowing it to be hardened or tempered as needed for any application. This allows the material to be tailored to meet the needs of a wide range of projects and makes it an incredibly versatile material for use in many different industries. Additionally, its ability to respond well to heat treatment means that we can also adjust the hardness levels depending on the requirements of each project – making this an incredibly useful material overall!

AISI 1551 Machining & Welding

Finally, SAE/AISI 1551 steel is relatively easy to machine and weld compared to other materials – which makes it perfect for fabrication projects where precise cuts are required, or welding is necessary. Its ease of machining also means that parts made from this material can be produced quickly and efficiently with minimal wasted time or effort – making this an ideal choice for those looking for a cost-effective solution when producing parts from metal!


In short, there are many advantages associated with using SAE/AISI 1551 steel – from its excellent corrosion resistance and heat resistance qualities to its ability to respond well to heat treatment and being relatively easy to machine & weld compared with other materials available on the market today! All these benefits combine together to make this an incredibly versatile option that is suitable for many different types of industries or applications – so why not give SAE/AISI 1551 a try today? You won’t regret it!

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