Waverley Brownall

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How To Choose The Right Superalloy

How To Choose The Right Superalloy

What is a Superalloy?

Superalloys, also known as high-performance alloys are metals with properties of strength and intense durability. This includes aspects of temperature and environment, such as seawater corrosion or internal corrosion from acidic substances.

In this blog post you will find out how to select the best alloy for your intended use.

4 Steps To Selecting The Best Superalloy

steel pipe fittings catalogue

1. Research

Research is a crucial stage in selecting the right alloy for an application. You should take time to browse the market of alloys that are available for the intended use.

Helpful documents and downloads on each alloy type can be found on Google , or you can use other sources such as our special metals page.

bsp parallel nptf screwed bush 150lb class

2. Weigh up the considerations

  • Availability of the alloy or fitting/valve in the superalloy
  • Pricing – This should include maintenance costs, installation and training if necessary
  • Properties of the special alloy – *Forming a table that weighs up the Pros and Cons of each alloy will help you to determine which is best. Eg. To easily see where one type of alloy out-performs another on applications of high temperature.
  • Intended use – Where will you be using the fitting or valve in the exotic metal material? Are issues of corrosion, temperature and atmosphere an issue?

3. Find a reputable supplier

GET A QUOTE

Finding a reputable supplier (or manufacturer, especially for bespoke products) is our third step. This step takes you further towards the enquiry stages of a purchase but it is important to know what to look for when judging your options:

  • Where is the company based?
  • Location may be a key consideration for delivery depending on the urgency of your order.
  • Do they have recognisable badges visible on their website?
  • If you scroll down to the bottom of our website, you will see two badges for our LLoyds Approval and ISO approval. Beware of websites without any badges or visible accreditation.
  • Have they supplied other reputable companies?
    • As an example, on our homepage you will see we have supplied the likes of Shell, BP and ConocoPhillips. It is important to determine the legitimacy of expertise when it comes to Superalloys. Accidents within industries such as Oil and Gas from faulty products or metals can be devastating.
  • Certifications of materials – Can the company you wish to buy from provide certifications of material type?
  • We provide PMI (Positive Material Identification) testing for all of our metals, including Hastelloy C276, Titanium, Stainless Steel and Incoloy.
stainless steel couplings uk

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4. Seek expert advice

To ensure you are selecting the right alloy, it is always a good practice to contact a professional for advice.

We advise these two options:

  • A Metallurgist
  • Qualified Engineer 

You can speak to a Qualified Engineer here at Waverley Brownall by contacting enquiries@waverleybrownall.co.uk

We have specialised in exotic metals such as Hastelloy, Inconel, Super Duplex and many more for over 40 years.

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Corrosion Prevention Material Selection

Corrosion Prevention Material Selection

The issue of corrosion within industries such as oil and gas, chemical processing and marine engineering is extremely important.

To avoid extreme health and safety issues and economic loss, businesses within these industries must be one step ahead of the corrosive media in the working environment.

Solutions for corrosion resistance are available in forms of coatings, but for long-term investment in corrosion resistance, material selection is the number one prevention tool.

Corrosion Prevention Material Selection: The Importance To All Industries

Selecting the correct material to withstand destructive acids, oxygen and waters is the key to avoiding disasters.

This is not only a consideration for economic factors, but industries must prevent disasters on a huge scale that include loss of life, such as the Guadalajara Sewer Explosion. This explosion resulted in the death of 215 people, with 1,500 injured and damage to 1,600 buildings within the surrounding area. You can read more about the explosion in this post on Some Of The Worst Cases Of Corrosion.

Prevention Of Corrosion

Topics covered in this Slideshare include corrosion prevention methods and the considerations regarding material selection for corrosion prevention efficiency.

Slideshare presentation original works by Professor TKG Namboodhiri,
Consultant in Metallurgy and Corrosion

Corrosion Prevention Material Selection

Materials that are used for their corrosion resistance are often called high-performance alloys, special metals, exotic alloys or exotic metals.

Special Metals (Corrosion-Resistant Metals)

Some metals hold the properties to withstand corrosive environments, alongside issues of pitting, stress-corrosion cracking and more. These metals are more expensive than a standard stainless steel, but they can provide strength within environments with acids, alkaline, salts and seawater.

Not every company can have a qualified metallurgist at hand, luckily, there is plenty of information available from the original creators of certain special metals available online. Such as, Haynes International’s information on the alloy Hastelloy-C276.

Waverley Brownall also offer a free book to help guide you in the selection of our range of special metals for extreme applications. This includes information on the main considerations such as availability, metal composition and corrosion resistance charts for a clear view of a metals resistance in comparison to each other.

Considerations For Metal Selection

  • Cost of investment (Short term VS. Long term)
  • Properties of material needed
  • Application of material
  • Product of material (Eg. Fittings, Valve)
  • Design
  • Material VS. Material comparisons to find the best solution
  • Technical advice
  • Industry requirements and regulations

Materials With High Corrosion Resistance

Metals that hold high-corrosion resistant properties include: Incoloy 825, Inconel 625, Hastelloy C-276, Titanium, Super Duplex, Duplex, 6MO. You can find out more about these on our special metals page.

Learn More With A Free Guide

This guide covers everything you need to know for selecting the right corrosion resistant material for our entire range of valves and fittings.

A Guide In The Selection Of Special Metals

*Posted FREE to your address

GET MY GUIDE
  • Corrosion charts
  • Applications
  • Strengths
  • Alloy properties and Composition

Corrosion Resistant Alloys In Oil And Gas Production

As an approved supplier to Conoco Phillips, BP and Shell, we fully understand the need for correct corrosion prevention material selection within Oil and Gas. Metals within an environment such as this are expected to thrive with external attacks from severe application and heavy usage over a long period of time. This is why we have specialised in manufacturing fittings and valves in special metals to not only cope in these conditions, but to provide the biggest value to engineers around the world.

nuclear power plant

Other Industries

  • Chemical
  • Processing
  • Purification/Water
  • Agriculture
  • Pump and Valve
  • Petroleum
  • Renewable Energy
  • Nuclear

Helpful Links

Contact Us

enquiries@waverleybrownall.co.uk

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Titanium Used On Juno SpaceCraft

Titanium Used On Juno SpaceCraft

The spin-stabilised spacecraft Juno has been built with the mighty task to orbit planet Jupiter.

NASA have issued fantastic information reagrding the spacecraft and its travel – including the ability to track Juno’s position using their website. ​

Launched near 5 years ago, we’re right on time as Juno enters orbit around Jupiter.

Titanium And The One Giant Leap For Mankind

This alloy has long been known for its incredible strength.

juno spacecraft jupiter

It provides fantastic resistance to challenges on our planet – such as seawater corrosion.

However, one area we rarely hear about is its durability on spacecraft structures.

Titanium has high strength compared to its weight, but this isn’t the only reason why it is used so often in the aerospace industry.

​The Properties Of Titanium

This metal has the ability to withstand some very high temperatures. As you can imagine, in space, it is essential for materials ​to withstand incredible atmospheric pressures. Although Juno won’t face the same temperature problems as low-Earth orbiting crafts and satellites will, it will be experiencing a lack of sun radiation.

At the centre of Juno, sits the vehicle’s electronics vault that protects the precious electrical set-up from the harsh environment surrounding it. ​Juno will need to endure not only cruising through deep-space, but it will need to endure flying through Jupiter’s intense radiation belts.

Juno’s radiation vault is made of titanium alloy with a thickness of one centimeter.​

The top deck of Juno is planned to receive a radiation dose of 22 Mrad, showing the amazing shielding capability of the vault.

Titanium In Space

Did you know?

Titanium Grade 2

titanium grade 2 alloy

Waverley Brownall are proud manufacturers of fittings and valves in Grade 2 for uses in the aerospace, oil and gas, chemical and processing industries.

For more information on our special metals, email: enquiries@waverleybrownall.co.uk