Hot and Cold: Flat Rolled Steel Properties and Uses

Steel processing is as complex as it is useful. The variety of uses of this metal material depends on how it was processed. Key applications range from house frames to machinery parts, or even railways and appliances when combined with other metals.

One of the processed steel types is flat steel. Flat steel products are made of steel sheets and plates rolled from slabs. Flat-rolled steel products consist of two kinds, namely, hot rolled sheets and cold rolled sheets. They are manufactured differently, each having its particular application.

Hot Rolled Steel

Hot rolled steel is turned into a coil of steel while the temperature is above 1700 degrees Fahrenheit. This process makes the material more malleable, making it easier for the material to be rolled. Because of its malleability, hot rolled steel is used as a material for structural components. Some uses for hot-rolled steel include:

  • Structural Sections
  • Tanks
  • Racking
  • Guardrails
  • Railroad tracks

Though hot rolled steel is extremely malleable, it cannot be used to create intricate products. It is used most of the time for simple-shaped items like beams and poles.

Also, since exact dimensions aren’t required, and the steel’s appearance isn’t that important, some companies prefer using the scaly products in machining or metalworking.

Cold Rolled Steel

Cold rolled steel is as its name suggests. Instead of coiling it while extremely malleable, the steel is rolled while the temperature is below 1700 degrees F, usually at room temperature.

Because the steel is made and rolled at such low temperatures, its structure does not change. Due to its smoother and more accurate composition, it is typically used in:

  • Automobiles
  • Appliances
  • Building/construction

Cold rolled steel costs a little more than hot rolled steel because of the time and effort needed to roll it into a coil. Cold rolled steel has a shiny and smooth finish, while hot-rolled steel tends to be gray and scaly.

The cold rolled steel’s tensile strength is higher than that of hot rolled steel. Cold rolled has a tensile strength of 85,000 psi while hot-rolled steel has 67,000 psi. Cold rolled steel’s yield strength is also higher than that of hot-rolled steel, at 70,000 psi compared to the latter’s 45,000 psi.

This makes cold-rolled steel ideal in the machining industry, in which the quality of steel determines the quality of the final product.

Quality is Still Key

Depending on what you need them for, the quality of your coil of steel will always matter. If you are in the manufacturing, machinery, or even construction business, you will need to use only the highest quality of steel.

Hascall Steel Co ensures that you get only the best quality of steel according to your specifications. Fill out our form for your questions or to let us know what else we can do for you. Contact us today.

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HOW BEST TO ORDER STEEL FROM US...

At Hascall Steel we understand that part of being an expert is being able to tailor steel to your needs. With that in mind there are some key areas that will help us fulfill your steel order in a way that is best suited to your company’s capacities. By working with our sales team, we can adjust several aspects of your order to make things easier for your team members. Next are some areas to keep in mind that can improve efficiency and quality.

1. MATERIAL SPECIFICATIONS

Often customers place an order with the following basic information: Quantity/Gauge/Width/Length/Steel Type…

However there are quite a few QUALIFIERS that will help us all get the best value from the informational exchange.

2. TOLERANCES

When discussing material with our Sales Team, be sure to include tolerances for your gauge, width, and length (if applicable). In some cases, Hascall can meet tolerances as low as +/-.001 on gauge, +/-.003 on width, and +/-.015 on length. Specifications – Many steel specifications come with sub categories that can alter chemistries and mechanical boundaries. Be sure to have the full specification when ordering or talk with your sales representative to discuss options.

3. PACKAGING

Proper packaging can help reduce unloading and production time. ID – We offer ID sizes in 16”, 20”, and 24” OD – We are able to provide OD sizes up to 72” Skidding – Standard or custom skidding available, just let us know how you would like your material skidded to best meet your equipment needs.
Paper – Protective paper is standard on all orders but can be applied with standard or full wrapping both with and without Hascall Logos. Max Coil and Skid Weight – Coils can be adjusted to meet your max lift and coil capacities.
Offloading – Material can be shipped skidded or standing and set for Forklift on the side or the rear of the bed. Material can also be shipped ready for sheet lifter or overhead crane offload.

4. DELIVERY

Steel is only good if it gets there when you need it. At Hascall we have an experienced Logistics team that will ensure that your steel arrives on time in the way that best suits your needs. Whether you would like delivery via our in-house Steel Man Transportation service or if you would like to pick up your material personally, our team can set up appointments that meet your schedule. Our Logistics team can also arrange a 3rd party carrier if needed. Delivery dates, times, and address should be discussed with your Sales Representative prior to ordering.

5. THE UNKNOWN

And lastly, we know each customer is unique. There may be special requests that we would love to accommodate. These may range from a sample of the steel attached to the packaging, to increased tag requirements and frequencies. We are happy to work with you in order to be your trusted choice in slit steel coil and blanks.