Company details for Knight Strip Metals

Knight Strip Metals

  • 0170 (Display number) 01707 650251
Linkside Business Centre
Cranborne Industrial Estate
Summit Road
Potters Bar Hertfordshire EN6 3JL United Kingdom

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Product Information

Martensitic Stainless Steels

Martensitic Stainless Steels

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Martensitic Stainless Steel is a low cost form of Stainless metal strip.  These alloys are magnetic and are generally formed in the annealed condition, then heat treated.   Martensitic grades typically contain 12-15% Chromium, with Carbon as the key alloying element.   Carbon content can range from as low as 0.1% to over 1%.  The variation in the Carbon content, in addition to the other possible alloying elements, provides this group with a wide range of desirable mechanical properties.  Whilst not as popular as other Stainless Steel grades, Martensitics offer high strength, good toughness, and good heat resistance.   These grades also posses a moderate to good corrosion resistance, depending on the their Chromium content.  Moreover, the higher Chromium content in some Martensitic grades, such as 431, offer a similar level of corrosion resistance to the Austenitic grade 304.

Martensitic grades equally share similarities with some Carbon Steels.  To improve toughness and ductility, they undergo a hardening process of quenching then tempering.  Ultimately, it is the Carbon content of the alloy increases the strength properties.  However, increasing Carbon to increase strength, consequently comes at the expense of toughness and ductility.

As a result of its low cost and moderate corrosion resistance, this group is ideal for many applications.  In fact it was the first to be commercially developed as cutlery steel.  However, it is its high strength and toughness properties that result in Martensitic grades being found across multiple industry sectors.   Uses include surgical instruments within hospitals, valves, pumps and other components for the Oil and Gas industry, through to turbines and gears in Aerospace manufacturing.    Furthermore, these grades are highly useful for manufacturing complex spring shapes, requiring a soft steel for forming.

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About us

Established in 1940, Knight Strip Metal has gained an enviable reputation in  premium quality precision strip metals and wire in a range of raw materials including stainless steel, high performance alloys, mild & carbon steels, copper & copper alloys, titanium & titanium alloys, aluminium and aluminium alloys.  

Knight Strip Metal, also known as Knight Group are well established in the metal industry and as such are the supplier of choice for many global organisations throughout the world. Our success is built up by our core values ensuring that you get the very best from your metal and metal processing supplier. Our mission is to become not only a local manufacturer but also deliver results on a global scale providing you with the highest quality materials and processing services.  

> Quality – Our commitment to all our customers it to provide them with the very best service and top quality products giving you the highest standards that you deserve.  
> Efficiency – We work alongside our customers, offering the very best service and support, helping reduce production costs without compromising on quality as well as delivering on time.  
> Innovation – We strive to provide the very best service to our customers, we embrace all new challenges, creating tailored solutions that exceed expectations. 
> Trust – We want our customers to be completely satisfied with our work, we build long lasting relationships due to our focused approach on ethical, responsible and fair business practices. 
> Partnership – We work alongside both customers, colleagues and suppliers and value their input on the best practices to achieve goals and maintain a sustainable business.  
> Investment – We continue to invest time, effort and money to provide all business partnerships success not only for our customers but also on-going business growth. 

In addition to the supply of the raw materials we are also recognised as industry leaders in the processing of strip, coil and wire. These services include; 

> Recoiling – supplied in a range of coil sizes and weight options including pancake coils, traverse wound spools, open sided oscillate wound coils, up to 1000mm wide, low weight coils, coils on cardboard centres 
> Slitting & Shearing – for ultrafine tolerances and substantially superior width thickness ratios of 3:1 
> Traverse Winding – an alternative to single coil pancake coils, increasing productivity and enables longer uninterrupted production runs 
> Cut to Length – raw materials cut to exact customer specifications 
> Edge Dressing – material edge dressing to your specifications reducing the risks of injury and manufacturing time.  

Why choose us your metal and metal processing supplier? 
With a dedicated and experienced production team with years of experience in the metal industry, the Knight Group are well equipped to offer a full range of high standard and efficient metal processing services. Whether you require slitting, shearing, traverse winding, material cut to length or edge dressing then we can help. All processing is based on a competitive price and all work carried out is flexible so that you only get the services you require. 

We stock Europe's largest and most comprehensive range of precision metal strip and wire, in a variety of different grades including stainless steel, mild steel, nickel and nickel alloys, titanium and titanium alloys, aluminium and aluminium alloys, bronze and copper alloys.  

We can work with all requests, whether its large volumes of metal or test materials for prototypes we can provide you with the materials you need for your project without comprising on quality or cost. 
  
The Knight Group has worked with a number businesses including Rolls-Royce, BAE Systems, Airbus UK, Westland Helicopters and HS Marston Aerospace Ltd to name a few. 

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