ThePipingMart Blog Grades Alloy Steel UNS K92460 – Composition, Properties, And Uses

Alloy Steel UNS K92460 – Composition, Properties, And Uses

UNS K92460

UNS K92460 is a low-alloy carbon steel with excellent strength, toughness, and wear resistance. It is commonly used in the manufacturing industry, particularly in producing pressure vessels, boilers, and various types of heavy equipment. If you’re wondering what UNS K92460 is, this blog post is for you. Please keep reading to learn more about its composition, physical and mechanical properties, uses, hardness, heat treatment, welding, and corrosion resistance.

UNS K92460 Composition

UNS K92460 is a carbon-manganese steel containing small amounts of silicon and chromium. It has a carbon content of around 0.20 to 0.25%, making it a low-carbon steel. This composition offers excellent weldability and ductility, making this steel an ideal choice for many applications.

Grade/ Material Element Composition( Max-A, Min-I)
A335 P92/UNS K92460 C A:0.07-0.13
Mn A:0.30-0.60
Si A:0.50
P A:0.020
S A:0.010
Cr 8.50-9.50
Mo 0.30-0.60

UNS K92460 Physical Properties

UNS K92460 has a density of approximately 7.85 g/cm³. Its melting point is around 1420-1465°C, while its thermal conductivity is 49.8 W/m-K. The coefficient of thermal expansion is 11.5 µm/m-°C, while its specific heat capacity is 452 J/kg-K. With these properties, UNS K92460 is an ideal material for use in high-temperature applications.

UNS K92460 Mechanical Properties

UNS K92460 exhibits excellent mechanical properties, making it strong and durable. Its tensile strength is around 655 MPa, while its yield strength is approximately 415 MPa. Its elongation capacity is around 25%, so it can withstand significant deformation without breaking. It also has a good impact on toughness.

Grade/ Material Tensile Test Ksi/MPa
A335 P92/ UNS K92460 Tensile Strength I:90/620
Yield Strength I:64/440
Elongation I:20%
Impact Test( if any)

UNS K92460 Uses

UNS K92460 has a wide range of uses in various industries. It is commonly used in the fabrication of boilers and pressure vessels, as well as pipe fittings, flanges, and valves. It is also used in manufacturing heavy equipment, including cranes and earthmoving tools. Due to its excellent wear resistance, UNS K92460 is also used to produce wear-resistant components.

UNS K92460 Hardness

The hardness of UNS K92460 can be increased by heat treatment. When in an annealed state, it has a Rockwell hardness of around B85. When it undergoes quenching and tempering, its hardness increases to around HRC 30, making it more suitable for high-stress applications.

UNS K92460 Heat Treatment

Heat treatment is an important process that can alter the properties of UNS K92460. Annealing is the most common heat treatment method used for UNS K92460. This process involves heating the steel between 815°C and 900°C, followed by slow cooling to room temperature. This process improves the steel’s ductility and weldability.

UNS K92460 Welding

UNS K92460 has excellent weldability due to its low carbon and high manganese content. It can be welded using various processes, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), shielded metal arc welding (SMAW), and submerged arc welding (SAW). It is important to ensure that the welding process does not affect the steel’s chemical or mechanical properties.

UNS K92460 Corrosion Resistant

UNS K92460 has moderate corrosion resistance and can be used in mild to moderately corrosive environments. However, it may not be suitable for highly corrosive environments, such as those containing sulfuric acid. It can be coated with a layer of paint or other protective coating to improve its corrosion resistance.


UNS K92460 is a low-alloy carbon steel with excellent strength, toughness, and wear resistance. It has various uses in various industries, including manufacturing boilers, pressure vessels, pipe fittings, and earthmoving tools. Its excellent weldability and ductility make it a popular choice for many applications. By understanding its composition, physical and mechanical properties, and applications, you can decide whether UNS K92460 suits your specific requirements.

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