Hot Rolled Hex Bar
Hot rolled steel refers to a steel-rolling process in which flat steel is rolled at extremely high temperatures that exceed the recrystallization temperature. This makes the steel more malleable and easier to form and shape. Once heated and molded, hot rolled steel is cooled at room temperature. While this gives the finished product looser tolerances than the original material, it also makes the product free from internal stresses that may occur during heat-treatment processes such as quenching and the work-hardening process. Finally, steel shrinks slightly as it cools and so there is less control over its final shape. Thus, hot-rolled steel can vary in dimensional consistency and have rougher edges than cold-rolled steel.
Hex Bar Applications
Hot rolled hex steel bars are long, hexagon-shaped (six-sided) rods or bars. Because they are excellent weight-bearing bars, they are useful in construction industries. Hex steel bars are also used to fabricate other structural support materials, including I, H, and C beams.
They are also highly machinable and suitable for component-producing applications, because hex bars fill a plane with equal size units and leaves no wasted space. Because they are easy to drill and form, hex steel bars are commonly used in ornamental and interior works.
Hot rolled hex steel bars will have slightly rounded edges and corners with strength and ductility suited for a variety of fabrication processes, including welding, bending, forming, and machining. They are used in a variety of industries, including:
- General Fabrication
- Power Generation
- Food Processing
- Chemical Processing
- Oil and Gas
The properties of hot rolled steel make it popular for structural components and applications in which precise tolerances and shapes are not critical. Common applications of hot rolled hex steel bar include:
- Wall Mount
- Sprocket Assemblies
- Component Parts
- Fixture Clamps
Grades and Sizes of Hex Bar
Eaton Steel Bar Company supplies hot rolled hex steel bar stock in a variety of sizes. The width of hex steel bars is measured from across the flats (not corner to corner). If you require other sizes, contact Eaton Steel for availability and more information.
The most commonly stocked grade of hot rolled hex steel bars is A105
* Other grades are available by inquiry.
What are the benefits of hot rolled hex steel bar?
Hot rolled steel typically requires much less processing than cold rolled steel, which makes it a lot less expensive. Also, it is often manufactured without pauses or delays in the process, so the steel does not need to be reheated. Because such high temperatures are used during the rolling process, hot rolled steel is more malleable. It can be cut or formed into nearly any shape needed, unlike cold rolled steel. In general, projects using hot rolled steel take much less time than those with cold rolled steel, because of its ease of manipulation.
Hot rolled steel is ideal in applications where dimensional tolerances are not as important as overall material strength, and where surface finish is not a major concern. Even if surface finish is a concern, scaling can be removed, and various brush or mirror finishes can also be applied. Descaled hot rolled steel also offers a better surface for painting and other surface coatings.
The following are some characteristics and benefits of hot rolled steel.
BENEFITS OF HOT ROLLED STEEL
BENEFIT TO THE CUSTOMER
Increased formability and flexibility
Can be used to produce parts containing simple bends as well as drawn parts
Increased thickness control
High-force, computer-controlled sets of rolls reduce gradually reduce the slab thickness to the desired finished thickness
Higher production rate
Requires less time to complete the hot-rolling process, so more can be produced
Cheaper and more cost-effective option
Less expensive to manufacture so cost savings are passed along to the customer
Increased width use
Can be formed and shaped into large sheet metal, which has many applications
Hot rolled steel is often preferred over cold rolled steel because of price—it is less expensive to manufacture. It is also ideal in applications where dimensional tolerances are not as important as overall material strength, and where surface finish is not a major concern. Even if surface finish is a concern, scaling can be removed, and various brush or mirror finishes can also be applied. Descaled hot rolled steel also offers a better surface for painting and other surface coatings.