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Hot Rolled or Cold Rolled?

Written By Rob NSB

August 15, 2019

Steel is manufactured in two different ways – hot rolled or cold rolled. The temperature makes the difference – hot rolling is carried out at around 1000 degrees centigrade and it uses a process that prevents the steel from becoming hard as it is being worked. It is usually used for buildings with a large span, so for large storage buildings, or if heavy equipment or gantries need to be attached to the framework of the building. 

Hot rolled steel is usually thicker than cold rolled steel and is, therefore, stronger and more robust. It is used for portal frame buildings and it’s also great for oddly shaped buildings rather than the traditional rectangle, as well as being useful for more corrosive environments.

National Steel Buildings can offer hot rolled steel buildings painted in whatever colour you choose, or it can be post galvanised to make it even stronger.

Cold rolling is carried out at room temperature. It doesn’t need to be cooled so there is less of a tendency for it to break which is sometimes the case with hot rolled. Although it’s only really been used extensively for construction purposes in the last two decades, it was first developed during the first world war. It suits smaller spans of up to around 24 metres. 

It’s much lighter to handle, has a high strength to weight ratio and foundations for cold-rolled steel buildings do not need to be as deep as for those with hot rolled steel, which makes it more cost-effective. All of our Cold rolled steel structures are pre-galvanised, making them strong and durable.

National Steel Buildings can supply and erect a large range of both hot- and cold-rolled buildings so get in touch with us and we will give you a personal quotation.

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Nationwide Installation Service Available - Speak To One Of The Team For A Quotation
COVID 19 Update - We Are Still Open & Available To Help On Projects of All Shapes & Sizes!
We Supply Both Hot & Cold Rolled Steel Frames To Best Suit Your Needs & Budget

Bolt Together Frame Kit Buildings Available at Unbeatable Prices!

High Quality Buildings & We Will Not Be Beaten On A Like-For-Like Quotation!

Call Us: 0800 689 3177 or Email Us: [email protected]

Full Installation & Turnkey Packages Available Nationwide

Insulated Workshop – Beth Chatto Gardens

Our team is very pleased with the building and from our point of view it has been a pleasure working with you too.

It was an exciting project for us and the first building of this scale we have had – it was reassuring that you could take the time to talk us through the many options and you were very helpful and practical in your advice.

When we recover from the impact of Covid19 we may well be in touch for another building 😊

Julia Boulton
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