November 25th, 2011
Duplex stainless steel is steel that has had chromium added to reinforce it further. It gives steel added resistance to corrosion which in turn give the material further advantages. There are many applications for this type of steel but this reinforcement makes it ideal for use within the chemical industries.
Steels are given a grade in relation the properties they display. Some are considered to be hard meaning they are difficult to manipulate whilst others are considered soft and therefore easier to machine. Depending on what your requirements are we supply different grades of steel. However, duplex or super duplex steels are extremely resistant to corrosion and intergranular corrosion. If you work with chloride and sulphide they are able to withstand these environments and rarely show signs of stress corrosion cracking. Obviously, super duplex demonstrate these properties even more than a duplex variety.
Extremely high temperatures (over 300 degrees centigrade) can result in the material becoming brittle. This is due to the high percentage of chromium. However, if subjected to lower temperatures, super duplex and duplex steels have a better ductility than other grades. This can save on heating costs as some grades of duplex stainless steel can be used at temperatures as low as fifty degrees centigrade. At Chemi Petro we supply all types of stainless steel products to suit your requirements. It may well be worth considering the duplex varieties for the additional properties they display.
Tags: industrial pipe flanges, stain, super duplex stainless steel
Posted in Duplex, Super Duplex | No Comments »
November 1st, 2011
When you have an emergency with a broken pipe in the middle of the night, who can you call? Ringing Chemi Petro is a little bit like ringing 999, but for pipes. We offer a 24 hour emergency break down call out service that you won’t find elsewhere.
At Chemi Petro, we are stockholders, manufacturers, and experts on all kinds of pipe and pipe fittings, as well as other related products. As such, we have years of experience in our field, and we understand the need to have an expert on call when you have a pipe emergency.
Whenever and wherever you need us, all you have to do is ring and we will get to you as soon as possible. We are customer focused and our aim is, above all, to make sure that you have what you need, whether that’s a pipe product or a repair service.
If you need our emergency service, ring us on: +44 (0) 1384 239441. We are available for your calls 24 hours a day, 7 days a week.
Our prices are competitive for what we offer—top quality customer service, repairs, and the highest quality, UK manufactured pipe fittings, pipe flanges, and much more. We have pipes and products in super duplex, seamless pipe, stainless steel, and more.
To contact us in a non emergency situation, feel free to ring us on: 01384 239441, or email us at: sales@chemipetro.co.uk. We’re happy to tell you more about our products, or advise you on their use.
Tags: Pipe Fittings, Pipe Flanges
Posted in Chemipetro, Duplex, Pipe Fittings, Super Duplex | No Comments »
October 21st, 2011
We work alongside diverse clients, including those within the petrochemical sector. Although some of our clients don’t require pipe fittings and components for use alongside potentially hazardous materials or in particularly harsh environments, we believe in approaching all client briefs with the same superb attitude and quality expectation as we do for our petrochemical clients.
Take the example of stud bolts. As widely used engineering components, stud bolts enjoy an integral place in environments ranging from classrooms to oil drilling platforms, fairgrounds to factories. We don’t believe that our products should be any less expertly designed and precision manufactured simply because they’ll see use in a school locker room rather than an oil tanker.
We can offer exemplary standards across all products for use in both low impact and particularly harsh environments. The Chemipetro ethos is one of assurance. We know our clients want 100% reliability, cost-effective production and thorough engineering excellence, whether for a small order of pipe fittings or a bulk brief for custom seamless tubing.
Our engineers and production teams are dedicated to the products they produce for all our clients, no matter how small the job. It’s perhaps this professionalism that has lent such credence to the Chemipetro brand, helping our company to grow into a global stockholder, manufacturer and supplier of flanges, pipes, pipe fittings and fasteners to various industries.
No matter the size of your company’s needs, get in touch today for an informal chat with one of our experts.
Posted in Chemipetro, Pipe Fittings, Super Duplex, stud bolts | No Comments »
October 20th, 2011
It’s harder than ever to make money these days, with small businesses failing all over the place and even the bankers tightening their belts. However, those of us lucky enough to be in a trade, like plumbing, which will never be obsolete, there are still plenty of ways to keep your head above water and your business thriving. Learning to navigate the new environment of information available freely that facebook, twitter and industry rating sites have created is tough, but it’s the only way to get ahead. Read on to find out how the experts are making money in plumbing by playing the game.
The first and most important thing is that the plumbers making serious money are doing so by building up a loyal client base. If you can earn a customer’s trust, they’ll call you whenever there’s a problem, even if you aren’t the cheapest on the block. You’ll get to know their systems, which saves you time, and if you’re lucky they’ll even recommend you to friends, family and neighbours.
How to build a loyal client base? It’s simpler than it sounds; it’s all about communication. Most people can’t really understand plumbing, because they don’t know their socket head cap screws from their stud bolts. Helping them understand is vital to building trust.
Last but not least, never keep them waiting. Buy pipe fittings from Chemi Petro and you’ll have them in your hand next day, meaning that you never leave a customer in the lurch. Simple.
Tags: Pipe Fittings, Socket Head Cap Screws, stud bolts
Posted in Flanges, Pipe Fittings, Super Duplex, stud bolts | No Comments »
September 27th, 2011
Duplex and Super Duplex are terms you will often see used in reference to steel pipes and pipe fittings. But what do these terms actually mean, and how can you know if you need products made from these materials?
Duplex and super duplex are manufactured steel materials with a complex of other alloys. Duplex consists of a combination of austenite and ferrite.
The beauty of Duplex is that it offers twice the strength of other steel, making for much stronger and durable pipes. Because of the added strength, they can often also be lighter in weight because the steel does not need to be as thick to still provide a sturdy product.
Pipes made from Duplex are more resistant to corrosion, pitting, and cracking. They are lower in nickel and molybdenum content than other steel pipes, often making them less expensive than other steel pipes.
The difference between Duplex and Super Duplex is that Super Duplex offers even more added strength due to extra chromium, molybdenum, and nitrogen content. This also means even more protection from pitting and crevice corrosion.
To put it briefly, Super duplex is simply a stronger, sturdier form of Duplex. Where you would use Duplex you can generally also use Super Duplex.
If you are thinking of using pipes and fittings made from one of these materials, but you aren’t sure which would better suit the job, feel free to get in touch. We are happy to assist you.
You can fcontact us by email at: sales@chemipetro.co.uk, or ring us on: 01384 239441 to speak to a member of staff.
Posted in Duplex, Duplux, Super Duplex | No Comments »
May 6th, 2011
As a leading worldwide industrial supplier of super duplex stainless steel, our researchers and engineering teams are more than encyclopaedic on the properties, functions and common uses of super duplex. But what are the benefits, in simple terms?
Qualities
Super duplex stainless steel embodies remarkable strength, resistance to crevice corrosion and pitting/stress cracking, workability, high thermal conductivity, high energy absorption, low thermal expansion, and resistance to sulphide stress corrosion in a single material. This makes it ideal for use in the production of mechanical and structural components.
Make-Up
The inherent make-up of the duplex family of stainless steels covers a range of qualities in terms of corrosion resistance that depends upon their alloy content. They are roughly twice as strong as austenitic or ferritic steels. Super duplex is formed from a mixed microstructure of almost equal fractions of austenite and ferrite, rather making it the best-in-class of the duplex family. Exemplary corrosion performance makes the duplex family – in particular super duplex – ideally suited to application in the marine industries.
Industrial Applications
Super duplex stainless steel pipes contending materials to the post financially thanks to its higher yield strength (savings are possible through reduced weight etc.) Super duplex is often the material of choice in the marine and fossil fuel industries. A few examples include heat exchangers in desalination plants, high strength resistant wiring, mining pipes for the transport of fossil fuels, and chemical oil tanks.
The duplex stainless steel family has seen success across the industrial board thanks to a potent combination of desirable qualities and cost effectiveness.
Tags: Duplex, Pipe Fittings, Pipe Flanges, Super Duplex
Posted in Super Duplex | No Comments »
April 12th, 2011
When purchasing seamless pipes, there are often different material choices. Here the materials available from Chemipetro, and what the benefits are of each individual type.
Some of the duplex stainless steel products from Chemipetro include tubing, seamless and welded pipes, fittings, flanges, pressure fittings and fasteners. Seamless and welded pipes in duplex stainless steel range from one half inch up to 60 inches. Some of the benefits of duplex are high strength, less expensive than austenitic stainless steel, low thermal expansion, and resistance to pitting, stress corrosion, cracking, and other issues.
Another choice for pipes are those made from super duplex stainless steel. Super duplex is a highly alloyed, high performance version of the duplex material. Chemipetro also offers pipes in this material from one inch up to 60 inches. The same benefits apply as those of the duplex, but this material is even stronger.
6% Moly, also known as 6MO, is another material used for pipes and other products like fittings, flanges, and fasteners. One of the major benefits of seamless pipes made from this material is that they are very highly resistant to stress corrosion and cracking from chloride. They are also fifty percent stronger than certain austenitic stainless steel pipes.
Titanium is also a good choice for materials. Titanium is very strong, and lightweight. Another benefit of this particular material is that it offers the opportunity for “cold bending,” where difficult or complex bends need to be made—with no need for fittings or flanges.
Tags: Flanges, seamless pipes, Super Duplex
Posted in Super Duplex | No Comments »
February 28th, 2011
For all pipes, flanges and products created from duplex and super duplex as well as all appropriate fixtures and fittings, always choose the A team of manufacturing: Chemipetro. We can make bespoke pipes and pipe fittings to absolutely any specification very rapidly and have it delivered right to your door.
Our expertise and gold standard service has seen us become the United Kingdom’s premier supplier of products to the worldwide gas, oil and petrochemical industries. Our products are designed and manufactured by the best professionals in the business and our close manufacturing proximity to the UK ROAD And rail network as well as three major international airports makes it relatively simple for us to deliver good s worldwide at very short notice.
Chemipetro also maintain s a twenty four hour breakdown and recovery service to all of its loyal customers, so you can rest assured that you e will never be left high and dry in any emergency situation. We fully appreciate the great responsibility of maintaining a high standard of products which are safety tested and always perform to the demands of the industries which we supply. Working in the oil, gas and petroleum supply industry demands high levels of dedication and commitments and we exceed the demands of our customers, using our expertise to originate and innovate.
For the best solutions from the professionals who always strive to excel, please always choose Chemipetro. We are eagerly awaiting calls from new customers every day, so don’t delay!
Tags: Flanges, Pipe Fittings, pipes, Super Duplex
Posted in Super Duplex | No Comments »
January 3rd, 2011
With small bore steel pipework, joints are usually screwed connections. However with larger sections of pipe and pipe fittings, as more commonly used in the petro chemical industry, the common method of connecting them together is welding. Even when sections are bolted together using flanges, the flanges themselves are welded onto the pipe sections. At Chemipetro we manufacture weld neck flanges for just such applications.
This may sound like a relatively straightforward method but is in fact a highly technical process in itself, as if it is done incorrectly it can introduce a weak point into the pipeline that can be subject to corrosion and failure. The installer may spend a lot of money on using high grade materials such as super duplex stainless steel but if the joints are no good they the money is wasted.
The most common type of welding used for both steel and alloys is gas metal arc welding. In this process an electric arc produces the heat to melt the welding material, whilst an inert gas such as argon or carbon dioxide is flooded over the joint as it is made. The gas ensures that no air comes into contact with the weld as this can cause fusion defects and for the weld to be porous.
However, because of the need to ensure control of the inert gas flow this type of welding is not suitable for use in outdoor environments or under water. Here a variation of shielded metal arc welding must be used. This uses a consumable electrode coated with flux and does not require the gas supply.
Tags: Duplex, Flanges, Pipe Fittings, Super Duplex
Posted in Super Duplex | No Comments »
December 21st, 2010
The petrochemical industry has required the development of specialist pipe fittings and pipes and flanges over the years to meet ever more demanding requirements. This has also led to the adoption of specialist materials such as super duplex stainless steels. These materials are none the less relatively straightforward to work and can be cut and welded in the normal manor. However, we at Chemipetro also manufacture parts from specialist materials that required more demanding techniques to work them.
Once such specialist material is titanium. Known as the space age metal, Titanium is very strong but has a low density compared with iron. In fact, it has the highest strength to weight ratio of any metal. It is also extremely resistant to corrosion from sea water, chlorine and even nitro- hydrochloric acid. These all go towards making it a suitable material for those extremely tough situations.
It is, however, its very toughness that can be a problem as it takes specialist techniques to work it. To weld titanium requires careful preparation to ensure that there are no contaminants on the weld surface. This can be done with steam cleaning or an alkaline dip but gloves must be worn as even chlorine from skin can cause contamination that will ruin the weld. The weld site should then be warmed to remove all traces of moisture. Finally the weld must be carried out in an atmosphere of pure Argon, and not just on the front but on the back of the weld as well.
A well done titanium weld will have the appearance of frozen mercury and will be shiny and reflective.
Tags: Flanges, Pipe Fittings, Super Duplex, welds
Posted in Super Duplex | No Comments »
