ThePipingMart Blog Grades 9260 Spring Steel – Composition, Properties and Uses

9260 Spring Steel – Composition, Properties and Uses

9260 Spring Steel

If you are in the manufacturing or automotive industries, you may have come across the term 9260 spring steel. This material is widely used in springs and blades due to its unique characteristics. As a high-carbon steel, 9260 spring steel offers high tensile strength, durability, and excellent shock absorption. This article will delve deeper into the material’s composition, properties, and uses.

9260 Spring Steel Composition

9260 spring steel is an alloy of iron, carbon, and other trace elements such as silicon, manganese, and chromium. It has a carbon content ranging from 0.56% to 0.64%, making it a high-carbon steel. The material also contains 0.7% to 1.0% manganese, 0.2% to 0.5% silicon, and small amounts of phosphorus and sulfur.

C Si Mn S P Cr Ni Cu
0.56~0.64 1.50~2.00 0.60~0.90 ≤0.035 ≤0.035 ≤0.35 ≤0.35 ≤0.25

9260 Spring Steel Physical Properties

One of the key physical properties of 9260 spring steel is its high modulus of elasticity, which measures a material’s ability to withstand deformation under stress. It has a 7.85 g/cm3 density and a melting point of 1425-1515°C. As spring steel, it is also known for its excellent fatigue resistance, which means it can withstand repeated loading and unloading without breaking or deforming.

9260 Spring Steel Mechanical Properties

9260 spring steel possesses excellent mechanical properties, including high tensile strength, hardness, and toughness. It has a tensile strength of 872 MPa and a yield strength of 690 MPa. The material also offers good wear resistance and can withstand high impact and shock without deformation or cracking.

Mechanical Properties

Metric Values

English Values

Modulus of Elasticity

200 GPa

29000 ksi

Hardness (Rockwell B)



Ultimate Tensile Strength

770-1525 MPa

112000 – 221200 psi

Tensile Yield Strength

440-1149 MPa

63800-166600 psi




9260 Spring Steel Equivalent

Country Japan BS China USA
Standard JIS G4801 EN 10089 GB/T 1222 ASTM A29
Grade SUP6 61SiCr7 60Si2Mn 9260

9260 Spring Steel Uses

Due to its strength and resilience, 9260 spring steel is widely used in the automotive and manufacturing industries. It is commonly used to produce suspension springs, leaf springs, coil springs, and various blades. The material is also suitable for manufacturing gears, shafts, and other mechanical components requiring high strength and resilience.

9260 Spring Steel Hardness

The hardness of 9260 spring steel can vary depending on the heat treatment and quenching process used. Generally, the material has a Rockwell hardness of 48-50 HRC. This high hardness makes it ideal for making blades, knives, and swords that require a sharp edge and good edge retention.

9260 Spring Steel Heat treatment

9260 spring steel can be heat-treated to improve its mechanical and physical properties. The process typically involves heating the material to high temperatures, followed by quenching in oil or water to improve its strength and hardness. Tempering is then carried out to reduce the material’s brittleness and improve its toughness.

9260 Spring Steel Welding

While 9260 spring steel has good welding properties, caution should be exercised during welding to avoid overheating, which can lead to cracking and deformation. It is recommended that the material be preheated to a temperature of 150-250°C before welding. Low hydrogen electrodes are also recommended for welding 9260 spring steel.

9260 Spring Steel Corrosion Resistant

One of the disadvantages of 9260 spring steel is its susceptibility to corrosion and rust. However, this can be mitigated by applying a protective coating, such as paint or oil, to the material’s surface. The material should also be stored in a dry and ventilated environment to prevent moisture buildup, which can accelerate the corrosion process.


9260 spring steel is a high-quality material with excellent mechanical and physical properties, making it ideal for automotive and manufacturing applications. With its high tensile strength, resilience, and toughness, 9260 spring steel is an excellent choice for producing springs, blades, and mechanical components that require high strength and durability. While the material is susceptible to corrosion, proper storage and protective coatings can help mitigate this issue. In conclusion, if you are in the market for a high-quality steel material with excellent properties, 9260 spring steel is an excellent choice.

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