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 17th, 2011
Common industrial flanges.
We supply numerous different pipe flanges but there are typically a few common types. Flanges are the rings, usually supplied with bolt holes, which can be attached to the ends of a pipe or piece of tubing to allow other pipes or industrial objects to be easily attached. They allow the adaption of materials to suit a project such as a pipe that needs to change direction; flanges can be employed to do this. They also provide an additional benefit in strengthening the pipeline.
The first common flange is an anchor flange, which, as the name suggests, are used to anchor a pipe. A specific type of holder is used for them to support the pipe. The anchor piece is attached, usually through welding, typically surrounded by concrete. These types of flanges can be best for usage where the pipeline changes course or at crossings.
The next type of flange is a split flange which can be ideal for use on piping that already exists. A split flange compromises of two parts that interlock and, using nuts and bolts or welding, gives a very secure fit. Due to it being made up from a double-piece, these types of pipe flanges are often used to amend areas that have become weaker or to provide an additional attachment that a standard flange is unable to do.
Expander flanges are known as a type of welding pipe neck piece that is used to make the size of the pipe bigger at a flange connection point. They are a less expensive and more compact than using a separate reducer welding neck flange combination. This saves you space and money.
Posted in Duplex, Flanges, Pipe Fittings | 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 30th, 2011
Health & Safety holds as prominent a place in our offices as it does on our factory floor. We understand the vital role the HSE (Health and Safety Executive) play in the maintenance and implementation of Health & Safety measures throughout the U.K, which is why we not only take onboard their recommendations and legal requirements, but also implement our own tailored Health & Safety conventions.
Manufacture and Storage
Our product manufacture facility currently covers around 23,000 sq. ft. And we see that as 23,000 sq. ft where everything from the smallest stud bolts to the largest seamless pipe MUST be accounted for and stored safety and in line with HSE regulations.
Environmental Challenges
Although we don’t manufacture and work within the hostile environments our products are often designed for, we implement both legally required and additional product testing to make sure all our stud bolts, flanges and various other components perform with 100% reliability under pressure. In the cases of seamless pipe products we habitually put into practice supplementary testing such as liquid penetrant inspection and hydrogen induced cracking.
HSE Recommendations
The HSE is quick to point out that the simplest of component failures can result in millions of pounds worth of damage and potentially fatal accidents. Ongoing legislature and HSE campaigns push for complete component reliability, comprehensive product testing and the shunning of a “cutting corners in favour of lower costs” attitude throughout the petrochemical industry. We’re fully onboard with these recommendations and look forward to continuing our work producing top quality components.
Tags: Seamless pipe, stud bolts
Posted in Duplex, Duplux, Flanges, Pipe Fittings | No Comments »
October 26th, 2011
We work with various materials on a daily basis, but perhaps one of the most sought-after steel alloys we produce is 6% molybdenum stainless steel (6MO) We currently offer standard and non-standard components in 6MO, including pipe flanges and stud bolts. We carry a healthy stock of these products because we don’t believe our clients should have to wait any more than is absolutely necessary for their products. Such a catalogue system is also vital to the commendable running of our 24 breakdown service, transporting components to emergency situations 24 hours a day.
Strength
As a pure element, molybdenum has the sixth highest melting point of any element. This makes it an ideal addition to high strength steel alloys. Even in such small inclusive portions (e.g. 6% molybdenum) it can be used to form superalloys with incredible qualities of strength and heat resistance.
Temperature Resistance
We habitually work alongside clients looking for high-performing components (stud bolts, seamless tubing, pipe flanges etc) across a diverse spectrum of industries. Heat resistance can be a factor in every industry, from marine petrochemical transport to aviation and agriculture. 6MO is noted for its ability to resist expansion, contraction, softening and hardening in extremely high temperatures, making it the material of choice for the likes of aviation components, filaments and industrial piping.
Other Qualities
• Despite showing such significant resistance to high temperatures, 6MO is incredibly dexterous in terms of weldability.
• 6MO is highly resistant to corrosion, stress cracking and pitting.
Tags: Pipe Flanges, stud bolts
Posted in Duplex, Pipe Fittings, stud bolts | No Comments »
October 18th, 2011
We know that independent tradesmen and small business owners alike need all the good luck they can get these days, with the financial climate difficult and banks unwilling to lend to even the most successful small businessmen. However, there is still money to be made by those who understand the market, especially in practical trades for which there’ll always be a market, such as plumbing.
These days, all independent traders know that review sites and published ratings mean that even legitimate and skilled tradesmen can have their reputation tarnished by a single bad review or disgruntled customer. Building good reviews by being efficient and organised is therefore key to retaining a loyal customer base. According to the experts, the trick is to be prompt and professional, and never keep the customer waiting.
At ChemiPetro, we’re dedicated to helping our clients make their clients happy. One click with us can take your new bag of couplings or socket weld equipment right from our warehouse to your doorstep by tomorrow morning. That’s what we mean when we call ourselves a “one stop shop”; we’ve got everything pipe fittings, at an affordable price, and you can order it instantly. We’ve even got the industry expertise to give you good advice, and our people are trained to give you the very best customer service whenever you use us, however big or small your order. We keep you happy, meaning you can keep the customer happy, by never keeping them waiting.
Posted in Chemipetro, Duplex, Duplux, Pipe Fittings | 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 »
September 20th, 2011
A flange is a device used for connecting two pipe fittings together, a pipe to a valve (or tee), or a pipe to a choke. There are various different types of flanges available:
Slip-on flange
This type of flange is bored to a somewhat larger size than the exterior diameter of the pipe. This allows the pipe to simply slip into the flange and be welded (inside and out) to prevent leaks.
Socket weld flange
Although similar to a slip-on flange, a socket weld flange requires a counter bore that is a little larger than the pipe’s exterior diameter.
Orifice flange
An orifice flange is generally used to meter the flow of a piped liquid or gas. In addition, jack screws are also required to broaden the flange so that an orifice plate situated between two flanges can be changed.
Weld neck flange
This type of flange is drilled in such a way that the thickness of the walls is made to match the dimensions of the pipe. A weld neck flange is most commonly used in high pressure and extreme temperature applications.
Blind flange
A blind flange has no bore and is typically used to close the ends of piping systems as it allows for easy access to a line once it has been sealed. Blind flanges can be made to accommodate a pipe of nominal size which has been reduced.
To find out more about flanges, fasteners and pipe fittings, explore our web pages further.
Tags: Blind flanges, Flanges, socket
Posted in Duplex, Duplux, Flanges, Pipe Fittings, Pipe Flanges | No Comments »
September 20th, 2011
Super duplex stainless steel was first developed for use in the sulphite paper industry in Sweden over 70 years ago. Today it is recognised as being an improvement on duplex stainless steel because its higher alloy content provides it with increased resistance levels to the potentially destructive effects of pitting, crevice and stress corrosion and cracking. In addition, it is also significantly stronger than normal stainless steel and duplex stainless steel.
Physical properties
Super duplex’s amazing physical properties allow it to resist corrosion fatigue, enjoy higher thermal conductivity and experience low coefficients of thermal expansion to a far greater degree than austentic stainless steels. Furthermore, tests have also shown that super duplex has high energy absorption, high strength, very effective resistance to sulphide stress corrosion and is ideal for welding. In addition, the high chromium levels present in super duplex stainless steel makes it far more resistant to acid chlorides and caustic solutions than other stainless steels. Naturally, this helps to make it the ideal solution for the most strenuous environments. In fact, these robust properties make it a very real replacement option for nickel based steels or 300 grade stainless alloys.
Chemipetro
We here at Chemipetro are one of the largest stockholders and manufacturers of super duplex pipes, fittings, fasteners and associated products in the United Kingdom. To view our extensive range of high-quality products in more detail, take some time to browse through the relevant pages here on our easy-to-use website.
Tags: Duplex, duplex flanges, super dup, Super Duplex
Posted in Duplex, Pipe Fittings, Pipe Flanges, Seamless pipe, stud bolts | No Comments »
September 20th, 2011
Duplex stainless steel was developed in the early 1990’s by metallurgists who were conducting research on combining metals for welding applications in the electric power industry. The metallurgists’ research found that the combination of austenite and ferrite in the same material created a new material that was incredibly resistant to the effects of corrosion. This new material was named “duplex” to reflect the fact that it was made up of a two phase micro-structure consisting mainly of ferritic and austenitic stainless steel.
Succesful and cost-effective
The potential of this new material was clear to see and in a very short time, it was proving to be very successful and cost-effective in a number of different ways. Indeed, not only were the constituent materials relatively inexpensive to source, but manufacturers also needed to use less of them to create their end product. This was because duplex ‘s corrosion resistant properties allowed products such as pipes and flanges to be made much thinner than comparable products made from more traditional materials.
Chemipetro
This revolutionary development in stainless steel has helped to completely transform the manufacturing and production industries. To reflect this, we here at Chemipetro offer a full range of flanges, pipes, fittings and other products made of duplex, as well as other materials. To find out more, and to view our products in greater detail, take some time to explore our web pages further or get in touch with one of our friendly customer service operators, today.
Posted in Chemipetro, Duplex, Duplux, Flanges, Pipe Fittings | No Comments »
