ThePipingMart Blog Fasteners 9310 vs C158 Steel Bolt – What’s the Difference

9310 vs C158 Steel Bolt – What’s the Difference

9310 vs C158 Steel Bolt

When choosing high-performance bolts, steel type cannot be compromised. The steel used determines the bolt’s quality, strength, and durability. Among the various types of steel used in bolts, 9310 and C158 stand out as top contenders. Both are exceptionally strong and widely used in different industrial applications. This blog post will explore the properties, strengths, and limitations of 9310 and C158 steel types to help you make informed decisions for your specific needs.

9310 Steel Bolt

9310 steel is a low-alloy steel that is heat treated and tempered for high-strength properties. This steel is extensively used in aircraft and missile components, gun parts, and automotive engines. 9310 steel bolts are known for their exceptional toughness, high core strength, and wear resistance. These bolts are heat-treated using oil quenching, giving them uniform hardness and desired properties. Though 9310 steel bolts are highly durable and strong, they may not be suitable for extremely high-temperature and corrosive environments.

C158 Steel Bolt

C158 is a high-strength steel alloy that has excellent durability and toughness. These bolts are heat-treated and tempered for exceptional strength and performance in challenging environments. C158 is widely used in aerospace and military applications, where strength and durability are necessary. These bolts can withstand extremely high-stress levels and resist thermal shocks. The main limitation of C158 steel bolts is that they are brittle and prone to cracking under high-speed and impact loads.

Difference Between 9310 and C158 Steel Bolt

Strengths and Limitations of Each Steel Type

9310 steel sheets have excellent toughness and wear resistance but may need to perform better in high-temperature and corrosive environments. They are an excellent choice for applications that require a high degree of durability and toughness. C158 steel bolts offer exceptional strength and durability, making them ideal for challenging environments requiring high-stress resistance and thermal shocks. However, they may not be suitable for high-speed and impact loads due to their brittleness.

Which Steel Type is Best Suited for Your Application?

Choosing the right steel type for your bolt application can be tricky. The decision depends largely on the specific requirements of your application. For applications that require excellent toughness, wear resistance, and uniform hardness, 9310 steel bolts are a great option. For applications that require high strength, durability, and resistance to thermal shocks, C158 bolts are the ideal choice. You must carefully evaluate your application’s requirements and consult with experts to make an informed decision.


9310 and C158 steel bolts are the most popular high-strength bolts used in various industries. Both steel types have their unique properties, strengths, and limitations. Careful evaluation of your application’s requirements and consultation with experts is crucial to choosing the right steel type for your specific application. Regardless of which steel type you choose, remember that the quality of the bolt’s manufacturing process is also crucial to ensure optimal performance and service lifespan.

Related Post