ThePipingMart Blog Grades SAE/AISI 1522 Carbon Steel (UNS G15220) – Composition, Properties and Uses

SAE/AISI 1522 Carbon Steel (UNS G15220) – Composition, Properties and Uses

SAE / AISI 1522 Steel

SAE 1522, recognized as “manganese steel” or “manganese bronze,” is a low-carbon steel enriched with manganese. It stands out for its ease of welding and fabrication, making it a versatile choice across various applications. AISI 1522 Carbon Steel (UNS G15220) is acknowledged for its excellent machinability, weldability, and toughness, making it popular in industries requiring robustness against wear and tear. Equivalent to SAE 1522, it offers a reliable, durable, and cost-effective option for those seeking quality construction and automotive engineering materials.

What Forms of AISI 1522 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 1522 Composition

AISI 1522, a manganese-enriched low-carbon steel, comprises iron and carbon, supplemented with manganese and silicon. Identified as “manganese steel” and “manganese bronze,” It facilitates straightforward welding and fabrication. The blend of these elements, coupled with its adaptable characteristics, positions AISI 1522 as a fitting choice for diverse construction and automotive engineering applications.

Element Content (%)
Iron, Fe 98.27 – 98.72
Manganese, Mn 1.10 – 1.40
Carbon, C 0.180 – 0.240
Sulfur, S 0.0500
Phosphorous, P 0.0400

AISI 1522 Mechanical Properties

AISI 1522 exhibits commendable mechanical properties with a balance of strength and ductility. This low-carbon manganese steel, offering good weldability, proves versatile in structural applications. Its mechanical resilience makes AISI 1522 well-suited for components requiring strength and durability, meeting the demands of various engineering and construction contexts.

Properties Metric Imperial
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30

AISI 1522 Physical Properties

AISI 1522, a low-carbon manganese steel, possesses a density influenced by its iron, carbon, manganese, and silicon composition. While exact values may vary, its density is typically within the 7.7-8.03 g/cm3 range. This characteristic contributes to the overall physical profile of AISI 1522 in various applications.

Properties Metric Imperial
Density 7.7-8.03 g/cm3

AISI 1522 Uses

SAE/AISI 1522 finds widespread application in construction, employed for bridges, buildings, and highway structures. Its versatility extends to agricultural equipment like plows and harrows. Additionally, this steel serves diverse needs, including railway track work, mining equipment, and power generation, showcasing its adaptability across a spectrum of industries and purposes.

AISI 1522 Uses in Industries

  • Automotive Industry
  • Industrial Machinery
  • Agricultural Equipment
  • Construction Industry
  • Oil and Gas Industry

AISI 1522 Properties

This steel has good ductility, toughness, and strength. It also has excellent wear resistance and corrosion resistance. The addition of manganese gives the alloy increased hardness and strength. The material can be heat treated to achieve a variety of mechanical properties.

AISI 1522 Corrosion Resistance

SAE/AISI 1522 alloy boasts outstanding corrosion resistance across diverse environments, making it highly appealing for various applications. It not only withstands general corrosion but also exhibits superior resistance to pitting and crevice corrosion compared to other alloys. This makes it ideal for challenging industrial settings, ensuring exceptional durability in corrosive conditions.

AISI 1522 Heat Resistance

SAE/AISI 1522 excels in heat resistance for steel construction thanks to its distinctive blend of chromium and molybdenum. Unlike typical steel alloys, it maintains structural integrity at elevated temperatures, avoiding warping. Additionally, it provides exceptional wear resistance, making it a favored choice for projects demanding physical durability and versatility among builders, fabricators, and industrial engineers.

AISI 1522 Machining and Welding

While this material is easily machinable and weldable, it’s crucial to acknowledge that its corrosion resistance doesn’t match that of stainless steel. When welding with this alloy, using suitable shielding gases is imperative to prevent oxidation.

AISI 1522 Heat Treatment

SAE / AISI 1522 heat treatment is a highly specialized process that can dramatically improve the performance characteristics of this steel alloy. Quality heat treatment ensures uniform mechanical properties, improved corrosion resistance, and enhanced surface finish; these benefits are especially important for components or parts in industrial or automotive machine applications where a high level of strength and stability are required. During heat treatment, the steel is heated to specific temperatures before quickly cooling it. This process brings out the material’s full potential by altering its molecular structure.


SAE/AISI 1522 Carbon Steel, identified as UNS G15220, exhibits a well-defined composition, notable properties, and versatile applications. With a comprehensive understanding of its Composition, including elements and characteristics, users can leverage its strengths for various purposes. From its Composition to inherent properties, this overview equips individuals with essential insights, facilitating informed decisions in selecting and utilizing SAE/AISI 1522 Carbon Steel for specific applications across diverse industries.

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