High Carbon Steel Strip

High carbon steel strip

High Carbon Steel Strip

You can find high carbon steel almost anywhere, whether it is in plain sight (like those metal clips on a pant hanger) or hidden away (like the fasteners that hold your refrigerator door). High carbon steel strip has great strength and works at higher temperatures than low carbon.

Compared with CSP, the TRC process shows alleviated composition segregation and decarburization. The microstructures of the hot-rolled strips are characterized by varying alternating distributions of proeutectoid ferrite and pearlite.

Hardness

You interact with high carbon steel on a daily basis, though you probably don’t even know it. From tiny washers to pant hangers, and from fasteners to trim clips, this versatile metal is used in a wide variety of applications. Its strength and ductility make it ideal for a number of manufacturing processes, including cold forming. You’ll also find it in springs, coils, and other forms of high-carbon wire.

Hardness is the resistance of a material to indentation or scratching. It is an important property for a number of reasons, including its influence on the shape and finish of a product as well as its High carbon steel strip durability. The higher the hardness, the stronger and more durable a product is likely to be.

Carbon steel strips can achieve a variety of hardness levels, depending on their specific composition and heat treatment process. These factors can help determine whether a particular strip is suitable for your application.

High carbon steel strip can be found in several varieties, ranging from low-carbon CS400 to medium-carbon CS690. These variations are characterized by their hardness, tensile strength, and weldability. Among these grades, CS890 stands out as the highest quality, offering high tensile strength and weldability combined with good formability. Also known as Spring Steel Strip or Unhardened, this grade of high-carbon steel can be cold rolled, and can also be through-hardened during the manufacturing process.

Tensile Strength

High carbon steel strip has a higher tensile strength than low-carbon strip, which makes it ideal for applications that require greater durability and resilience. This includes springs, tolerance rings, and bulldog clips. In addition to the carbon content that increases tensile strength, this type of steel also contains chromium and nickel, which increase corrosion resistance and help prevent intercrystalline corrosion and weld decay.

In materials science, the tensile strength of a material is defined as the ratio between the force that is applied to the material and the resulting deformation or change in material dimensions. Xometry’s high-carbon steel strip is available in a variety of tensile strengths and hardnesses to accommodate the specific requirements of various end-use applications.

When used in the cold-rolled, softened/annealed condition, high carbon steels offer maximum deformability and lower relative wear on component-forming tools. These grades can be subsequently heat-treated to achieve a range of final hardnesses/strengths from 240 – 320 VPN (equivalent to tensile strengths of up to 824 – 1090 N/mm2) depending on the design and fabrication methods of the end-use components.

In addition to the high tensile strength of these grades, they also possess good work-hardening rates, which make them suitable for deep drawing and stretch forming applications. They can be Tinplate Sheet supplier further enhanced by the addition of up to 0.1% phosphorus for use in automobile body pressings or by dual-phase steels that are heat-treated to form a mixed microstructure of ferrite and martensite.

Corrosion Resistance

High carbon steel strip is very tough and resistant to corrosion. This type of steel has low ductility but high resistance and strength, which is why it’s found in everyday objects that demand a lot of push-on and pull-off force like metal clips on a pant hanger or a car door hinge. It also has “memory” and returns to the shape it was formed in, even when bent.

This strip can be used in the annealed or hard cold-rolled and tempered condition depending on the end-use application and means of fabrication. Customers expect narrow tolerances on several properties aside from mechanical properties: dimensions, flatness and surface roughness.

The microstructure engineering of the hot-rolled and cold-rolled strip has a strong impact on its chemical and corrosion behavior. Different heat treatment cycles prepare dual-structure (DS) with ferrite/pearlite and triple-structure (TS) with bainite/martensite. The corrosion performance of these two structures is distinct due to their different phase distribution and packed crystalline structure.

Weldability is impacted by the carbon content of the steel and it is important to have a low contaminant level (Ceq). High carbon steel can experience delayed cracks after welding if it has been exposed to an aggressive environment for too long. Small stabilizing additions of chromium or niobium can prevent this and improve weldability.

Weldability

High carbon steel strip can be produced to a wide range of tensile strengths/hardnesses to suit component-manufacturing processes and end-uses. Some grades, however, require welding as part of the fabrication process (e.g. springs, gear wheels, vices, etc). Weldability is important because it affects both the strength of the finished product and the reliability of the weld joints.

Weldability of a material is determined by the type and quantity of alloying elements it contains. In general, higher carbon content results in less weldability. This is because higher carbon steels tend to form brittle martensite when they cool from the welding process. As a result, welds made in this type of steel are more prone to cracking and corrosion.

Low-carbon steels, on the other hand, are easy to weld. They can be welded at temperatures as low as 260°C and are capable of being through-hardened. This makes them ideal for bending, flanging and similar forming techniques. They are also excellent for machining, have good resistance to fatigue and stress, and can be strengthened without heat treatment. In addition, they are highly cost-effective and have a high degree of flexibility and adaptability. They are ideally suited to low-cost production techniques such as presswork. These characteristics make them suitable for a broad range of applications, including construction and railroad tracks where tolerances are not overly strict.

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