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11L17 steel

The 11l17  steel is a low-carbon, high manganese-content steel known for its good hardenability and surface finish.

About 11L17 steel

This carbon steel contains manganese as an alloying element, which improves its hardenability and machinability. Additionally, it retains good carburizing properties, making it a versatile choice for various applications.

11L17 is a low-carbon, resulfurized and rephosphorized steel that belongs to the class of free-machining steels. It is a type of carbon steel that contains approximately 0.17% carbon, 0.80% manganese, 0.08% max phosphorus, and 0.08% max sulfur.

The addition of sulfur and phosphorus to the steel makes it free-machining, meaning it is easier to cut, drill, and shape than other steel types. This is due to forming small, brittle sulfide and phosphide inclusions that break away during machining, reducing friction and improving machinability.

11L17 steel is commonly used to manufacture bolts, nuts, screws, fittings, and other small components requiring high machinability levels. It is also used to produce hydraulic fittings, bushings, and couplings.

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High Mechanical Properties & High Machinability

The 11L17 steel is a low-carbon free machining steel that offers high mechanical properties and exceptional machinability, making it an ideal choice for the production of precision parts and components. With its unique composition, and the addition of sulfur and phosphorus elements, the steel forms small, brittle inclusions during machining, which reduces friction and increases machinability.

Despite its high machinability, 11L17 bar maintains excellent strength and toughness, with a tensile strength of approximately 60,000 psi and yield strength of 50,000 psi. The steel’s good ductility and wear resistance make it suitable for use in a wide range of applications, including bolts, nuts, screws, and hydraulic fittings.

The combination of high mechanical properties and exceptional machinability make 11L17 steel a cost-effective and reliable option for manufacturers looking to produce high-quality components with tight tolerances and intricate designs.


11l17 Carbon Steel Properties

Density0.284 lb/in³
Tensile Strength68900 psii
Yield Strength58000 psi
Hardness (Brinell)137
Hardness (Knoop)156
Hardness (Vickers)143
Elongation at break (in 50 mm)15%
Elastic modulus27557-30458 ksi

11l17 Steel Applications

11L17 bars are a popular choice for manufacturing parts subjected to shock or vibrating stresses. This low-carbon steel is especially suitable for use in automotive and aerospace applications. The steel’s carburizing properties make it ideal for creating parts that require a softcore and high surface hardness, such as kingpins, gears, pinions, and ratchets.

In addition, 11L17 steel is commonly used in structural applications, such as bridge and building construction. With a carbon content of just 0.11%, this type of steel has excellent corrosion and oxidation resistance, making it suitable for outdoor and harsh environments.

Another advantage of 11L17 is its high strength-to-weight ratio, which makes it ideal for manufacturing knives with an edge hardness of 57-62 HRC.

Finding 11l17 Steel Suppliers

When selecting a supplier, it’s important to consider factors such as product quality, supplier reputation, lead time, and pricing. Established steel suppliers may offer a broader range of products and services, while smaller specialty suppliers may provide more personalized service and faster turnaround times.

At Advance Grinding Services, we are one of the top 11L17 steel suppliers in the industry. With years of experience and a commitment to excellence, we offer a range of products and services to meet our customers’ needs in various sectors. Our experts work closely with clients to provide tailored solutions that meet or exceed their expectations.

As one of the go-to 11L17 steel suppliers, we strongly focus on quality and customer satisfaction. Whether you need a single piece or a large quantity for a major project, we have the expertise and resources to deliver on time and within budget.

There are many 11l17 steel suppliers but only trust us. Contact Advance Grinding Services today for a quote for all your carbon steel needs.