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Welding in hollow section

30 Nov Looking For Structural Steelwork Suppliers

Welding in hollow sectionEven though all steelwork suppliers promise to deliver reliable services, not every company is a true expert in what they are doing. There are surprising things you might not know about them that can help you choose a supplier that offers services at par with the latest standards and specifications.

  • CE Marking – (‘Conformite Europeene’ which means ‘European Conformity’)

In July 2014, steelwork manufacturers were introduced to a new regulation that meant every structural steel fabricator has to have an accreditation that allows them to CE mark their products. It covers every product that is sold for structural properties.

However, companies in the UK have been very slow to implement this regulation and many seemed to hope to continue working without it. From over 9,000 fabricators in the country, only 5% has the CE marking accreditation, and here at Rowtec we are proud to say that we are part of that percentage.

  • Construction Products Regulation

The CPR is another European regulation that covers work in the UK. This regulation aims at improving the reliability of information, which is pf interest to consumers, contractors, and public authorities. The CPR has been developed according to the European Product Standards and Technical Assessments and uses unified assessment methods.

Any company that works with steel, such as structural engineers, component manufacturers, and structural steelwork suppliers should be aware of this regulation.

  • Corrosion Protection

Rust is an iron red oxide that is formed over time by the oxidation reaction of oxygen and iron. It rapidly appears in the presence of air, moisture, and water. Without quality corrosion protection, steel will rust due to these conditions. The amount of rust depends on the severity of environmental factors.

There are different protective methods, such as plastic or paint coating but they are old- fashioned and have drawbacks. For example, when a section of steel gets damaged, the coating will fall away, and this section will become rusty. It happens quite often, which makes these types of protection unreliable. A hot zinc spray treatment ensures that steel, which is exposed to damage isn’t compromised by rust.

  • Local Companies

Choosing to work with the local suppliers instead of a huge chain has many benefits and some may even surprise you. For example, even though may companies offer good service, they can’t do any better than a local owner can with a personal touch.

Local suppliers can offer products that are suitable for your area, your business, and local requirements. This is when you can actually find what you want rather than what a huge chain wants to sell you. It’s also worth mentioning that local suppliers develop their services based on local customers rather than fashionable trends.

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New Technology

16 Nov New Imaging Technology for UK Steel Industry

A researcher from the University of Bath has been awarded a new grant to develop an innovative way of assessing a key stage of the production of steel, greatly benefiting the competitiveness of the UK and EU Steel industry.

The shell-thick project will develop an innovative induction tomography system for assessing the solidification process of metal. This new system will significantly improve the continuous casting process of steel by providing a real-time, non-destructive and reliable method of measuring the molten steel to detect any defects or fails as it solidifies and becomes a market product.

The system will form a kind of contactless bracelet around the billet of molten steel and take continuous measurements as the steel solidifies. It will visualise the electrical conductivity of the different states of the solidifying steel and therefore provide an image of the structural composition of the steel as it cools. By enabling industry to continuously monitor and alter the cooling process of steel, this innovative method will improve the quality, safety, productivity, costs and ultimately competitiveness of the UK and EU steel industries.

Induction tomography Is a new and emerging non-invasive imaging technique used in a number of applications including medical diagnostics, geophysical exploration and civil engineering. The EU and particularly UK steel industry is currently in a desperate state and facing widespread job losses due to its inability to compete with the highly subsidised steel industries in China. Steelworks such as the Tata steelworks at Port Talbot are currently in emergency talks to try and prevent the plant closing. It is hoped this technology may help the UK/EU steel industry become more competitive and have greater job security in the long-term future.

The university of Bath works closely with its industrial partners in the UK and across the EU to being innovation to the marketplace, delivering impactful research to industry and society. Dr Manush Soleimanifrom the University of Bath’s Department of Electronic & Electrical Engineering has received an EU Horizon 2020 grant to lead this three-year project and will work with colleagues at the Fundación Tecnalia Research & Innovation in Spain as well as Italian steel industry companies Ferriere Nord and Ergolines Lab.

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weldfume_600x

02 Nov Weld Fume Hazards and How to Protect Yourself

Welding fuses two metal pieces together melting the base metal and a filler material forming a joint that is often stronger than the base metal. The heating of the base metal and filler causes vapours to emanate from the arc concentrating into extremely fine particles that can be exceedingly bad for human health. We have summarised some of the best practices for protecting yourself and others around you from the dangeweldfume_600xrs of the welding fumes.

What is in Welding Fumes?

Welding fumes occur when a metals temperature is elevated above its boiling point. When this occurs, the metals vapours concentrate into solid particulates that are a combination of the metal being welded and the electrode. The resulting fumes are an intricate combination of silicates, fluorides and metallic oxides. The composition of welding fumes can differ depending on the type of metal and flux being used:

  • Welding stainless steel produces lower amount of iron and a greater amount of nickel or hexavalent chromium.
  • Mild steel welding fumes consists of mainly iron and trace amounts of metal additives like copper, titanium, cobalt, molybdenum, vanadium, hex chromium, manganese and nickel.
  • Nickel alloys contains very scarce amounts of iron and has much more nickel.
  • Fluxes made from fluoride or silica generates fluoride fumes, metallic silicates and amorphous silica.

Protect Yourself from Welding Fumes!

  • Coatings– The safest practice with coated steel is to remove the coating completely before welding so as to prevent the coating from becoming toxic vapours from the heat of the arc. This can usually be performed with an angle grinder and flap wheel.
  • Welding Outdoors– Welders working outdoors should always position themselves so that they are working upwind of the arc so that the majority of the weld fumes will travel away from them.
  • Welding Indoors– When proper natural ventilation is not possible local exhaust ventilation systems should be used to help clear the welders breathing from gases and fumes. To be sure that the greatest number of fumes possible are being removed when using a local exhaust ventilation system make sure to keep the extractor guns and vacuum nozzles as close to the plume source as possible. Also, flexible exhaust systems can be used to draw the fumes away from the welder but always be sure that the ventilation is also aimed away from other workers as well.
  • Confined Spaces– When welding in confined spaces always use sufficient mechanical ventilation or airline respirators and make sure to avoid blockage of ventilation equipment.
  • Respiratory Mask– Always be sure to wear respiratory protection if ventilation cannot reduce fume exposures to safe levels.
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Tarrant Gunville 3

05 Oct Structural Steel or Reinforced Concrete?

Tarrant Gunville 3One of the early decisions that needs to be taken for any structural frame is the use of steel or reinforced concrete. This has long-term effect on the project, including cost and durability. Your choice has an overall impact on different aspects of building design, and its performance. Many businesses comparing structural steel to reinforced concrete find that steel is a more cost-effective solution compared to concrete. But cost isn’t the only factor you should consider when working on construction or civil engineering projects.

When it comes to cost then structural steel has a slight edge over reinforced concrete. Structural steelwork represents only 20% of overall steelwork used in construction, and this is the main reason why steelwork is much cheaper compared to reinforced concrete. The price of construction material has grown overall but the impact of this growth is more on concrete (by mass) than steel.

In terms of construction timing, concrete has a slight edge. It is said that building with concrete can be double the speed compared to a steel structure. But there are different views in support of structural steel as well. Many businesses prefer working with steel due to its versatility, strength and ease of construction.

 

Here is a summary of the comparative advantages and disadvantages of structural steel and reinforced concrete:

Reinforced Concrete Pros & Cons

Pros

  • Better fire-proof quality than steel, wood or brick.
  • Can take any shape with the right moulding.
  • Cost effective construction materials when it comes to certain structures like dams, footings, and piers.

Cons

  • Comparatively expensive.
  • When compared to steel it has low compressive strength.
  • Requires mixing, casting and curing. This might result in a change in the final strength of the concrete.

 

Structural Steel Pros & Cons

Pros

  • Cost effective in terms of materials and labour.
  • They are considered as the future of construction, with many innovations improving the quality and versatility of steel year on year.
  • Useful for construction of offices and commercial buildings.
  • Easily available at competitive prices.
  • Space can be optimised.

Cons

  • Not all builders are used to this material and it requires special tools to operate.
  • Structural steel components are prone to fire damage compared to concrete.
  • During winter the steel structures get cold easily and this might affect people working or living inside it. (This negative can be counteracted with the appropriate coatings and insulation.
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46

28 Sep Structural Steel Fabrication and Construction

The construction sector has advanced and with it, many new and improved methods including the use of structural steel. Nearly everything in construction consists of structural steel with skyscrapers, large warehouses and shopping malls springing to mind. In fact, steel framed structures are commonly used across a wide range of construction projects including garages, residential housing and short-term temporary structures and for good reason.

Steel fabrication is used to create various components and products with different qualities for numerous applications. Structural steelwork has been the primary choice for most builders, engineers, contractors and structural steel fabricators. Many industries rely on steel products and fabrication services due its quality, reliability, flexibility, cost effectiveness and sustainability.

Steel Framed Building | Dorset

Durability and Versatility of Structural Steel

Structural steel ductile which means it has the ability to withstand stress for long periods of time and bend without breaking. Steel can be moulded into virtually any shape and needs little maintenance. It’s also reusable and easily recyclable without affecting its properties making it a great eco-friendly option. Standing tall against strong winds and extreme weather conditions make structural steel buildings a sure winner.

Structural steel frameworks are made with exact precision ensuring the highest standards and safer building practices. The durability of steel needs no introduction as these benefits clearly indicate:

o  Resistant to adverse weather and remains rust-free

o  Strong underwater and does not shrink

 Fire resistant through the application of intumescent retardants

 Can apply corrosion and weathering resistant material during steel framework fabrication instead of on-site

 Unaffected by termites and insects

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Steel Frame Fabrication Dorset

23 Aug Basics of Steel Fabrication

Fabrication is “the action or process of inventing or manufacturing something”, as explain in the oxford dictionary.

Steel Framed Building | Dorset

Steel fabrication is a sensitive task because it needs skilled individuals who can handle the process well and work with care. It covers designing, detailing, drawing and constructing many steel structural members like deck, handrails, stairs and a lot more. Steel is used for constructing bridges, residential building, etc. Structural steel is useful for building complex and simple structures in a cost effective and time saving manner. A systematic well-designed steel fabrication process offers many benefits.

 

A good steel structural fabricator follows a specific process and the metal has to pass through many operations. A basic overview of the fabrication process steps are explained below:

  • Firstly, structural sections may have to go through surface cleaning procedures so different cleaning methods need to be applied, such as, blast cleaning, flame cleaning, manual cleaning, etc.
  • Once the surface is prepared cutting to the length is important and it can be done by implementing the most suitable process like, shearing or cropping, flame cutting or burning, cold sawing, punching or drilling and arc plasma cutting.
  • After the above process, the steel may become distorted because of handling or transportation process. Thus, it needs to be bended, rolled or straightened.
  • Now fitting and reaming will come into the picture. Minor defects will be corrected here.
  • Now the use of fastening methods has to be proper as the strength of complete structure depends on it. The three fastening methods are riveting, bolting and welding. Now-a-days welding is the most common method, but sometimes the need of bolting and riveting may arise.
  • Then comes finishing. Finishing will be done by sawing, milling or any other suitable means. For satisfactory finished cuts, a saw machine is used and for smoothening the steel surface other methods are used accordingly.

Lastly, the surface treatment is done with metal or paint coatings.

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Steel Fabrication Trends

30 Jul Trends in Steel Fabrication

The metal fabrication industry has seen growth in jobs and technology over the past several years. Although there was some anticipation about possible impacts with th3D Printinge new administration change, overall manufacturing has seen positive growth over the past year.

As a whole, metal manufacturing is in a good shape, although recent government intervention and Trump Tariffs are causing big concerns about the future as steel and aluminium prices have surged at record rates. Hopefully, steel and aluminium fabricators will see continued strong demand as the market adjusts to these new pricing realities. The good news is that the economy overall is boiling at a good rate – shops are busy and demand is strong. Here are the top 3 Trends in the industry.

Reshoring

The reshoring trend is due in large part to new technology, automation and advances in speed and productivity, as well as rising costs overseas.

Tube laser Technology

Tube laser technology introduces several significant advantages over traditional manufacturing and fabrication processes. Tube lasers increase the ability to produce more intricate cuts, increase fabrication speed, save on downstream assembly and can reduce costs while improving quality.

3D Printing

Things are looking exciting for the metal industry as metal fabrication businesses invest in 3D printing technology. Metal 3D Printing differs from traditional steel fabrication processes as it invoices the stamping of metals to produce a required design.

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Steel Framed Building | Dorset

29 Jun Why Cheapest Isn’t Always Best

Here atSteel Framed Building | Dorset, we pride ourselves on unbeatable prices with the highest quality and great customer care. We provide thorough research before supplying a quote to guarantee we provide quality materials and services at the best prices.

We all want the best value for money, but when it comes to metal fabrication, especially large-scale construction projects, the lowest bid doesn’t necessarily always provide the best value.

The lowest bid is often a result of a bidder’s mistake – scope items may have been missed, complexities may be underestimated or, worse case, craftsmanship may be undervalued. Any or all of these issues can lead estimators down a slippery slope.

Ultimately – and particularly when quality is at stake – the lowest bid almost always leads to other hidden costs that present themselves when it is too late to change.

Price quotes can vary for a multitude of reasons, and so can a company’s experience. When it comes to metal fabrication, and especially large-scale projects, you want the most qualified company for the job. A lesser-experienced company will often present a lower bid, and that inexperience is often reflected in lower-quality materials, shoddy workmanship, safety oversights and ultimately in the final project.

When it comes to choosing the one metal fabrication company that best suits your needs, there are five main factors to consider:

  • Capabilities
  • Experience
  • Quality
  • Methodology
  • Customer Service
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Welding in hollow section

15 Jun Welding Skills

Contact our fabrication experts today on 01202 882211 or email us at info@rowtecdorsetltd.co.uk to find out about the best steel fabrication Dorset has to offer.

Welding skills are classed as an art, it takes a lot of experience to get the right technique down. It is important to know what welders do and how they take steps to minimize weld distortion.

Welders cut, shape and join pieces of metal for both industrial and architectural projects. Key factors a welder should have are a skilful hand, a discerning eye, excellent Welding in hollow sectionmathematical skills, the ability to understand engineering drawings and, of course, knowledge about different types of metals and how to effectively operate different welding equipment and methodologies. High-end metal fabrication projects can be ruined by low-end welding skills, which is why, here at Rowtec, we take great pride in our work with our experienced welders.

Three of the most common welding fabrication processes used for metal fabrication are MIG, TIG and Stick Welding. The process used in a given project is determined by metal thickness, finish, location and application.

 

  • MIG welding is a great starting point for new welders and can be used with all types of metals and alloys. MIG welding is an arc welding process in which a continuous solid wire electrode is fed through the welding gun and into the weld pool, joining the two base materials together.

 

  • TIG is a more versatile welding process and requires a high level of skill. TIG welding can be sued to weld aluminium, copper, titanium etc; and even two dissimilar metals. This process is ideally suited to handling tricky welds such as S-Shapes, curves, corners or where the weld is going to be visible and where accuracy and finish is important.

 

  • As a manual welding process, Stick welding requires an even higher skill level. Stick welding, or shielded metal arc welding, has been around more than 100 years. Even though it’s an old welding process, it still plays an important role in manufacturing, with about 150 million to 200 million pounds of electrodes consumed in North America each year.
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Workshop

04 Jun Sheet Steel Fabrication and Ironworks

It may seem that sheet steel fabrication and ironworks have similar jobs, both are classed as highly skilled trades, but both have different skill sets and utilize different tools and materials. Usually, ironwork is more structural and sheet metal fabrication is more functional.

WorkshopIRONWORKERS

An ironworks or iron works is a building site where iron Is smelted and where heavy iron and steel products are made. An integrated ironworks in the 19thcentury usually included one or more blast furnaces and a number of pudding furnaces or a foundry with or without other kinds of ironworks.

There are three main types of ironworkers:

  • Structural ironworkers erect the framework of bridges, buildings, stadiums, amusement park rides, bank vaults and other large scale industrial metal projects according to engineer blueprints.
  • Ornamental ironworkers, or finishers, are responsible for the more architectural metal elements such as window frames, stairways, catwalks, railings, fencing, gates and building entranceways. This ironwork requires a high skill in arc welding.
  • Reinforcing ironworkers, or rodbusters, is to strengthen structures. These are the workers who place a tie rebar, and reinforce concrete footings, slabs, bridge frame work and building structures.

 

SHEET METAL FABRICATIONS

These skilled tradesmen frequently work in metal fabrication shops or at manufacturing plants and specialise in fabrication, installation or maintenance, but may also perform tasks in all three areas. There is a long list of fabrications that can be produced by sheet metal workers, including roofs and rain gutters, heating and cooling systems, handrails, and more. When fabricating using sheet metal you have to take into consideration the thickness, tensile strength, manufacturing method and quality. There are as many types of sheet metal as there are types of metal, most commonly used ones are aluminium, steel, stainless steel, zinc, copper and a variety of alloys.

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