Welcome to Edcon Steel - Register TODAY - View LIVE prices on over 6,000 steel and metal items - Get quotes and buy online 24/7

Engineering plastics now at Edcon Steel

Edcon Steel is now stocking a range of engineering plastics, available for purchase online and in selected stores. The plastics can be purchased by the stock length or custom cut to size. As we are not stocking the product at all locations, please ensure you contact your nearest Edcon Steel store before coming into the store.

Engineering plastics, such as acetal (Sustarin®) and polyamide (Sustamid®), are strong and hard plastics that come to replace traditional engineering materials, such as metal and ceramics, in many applications. Often surpassing traditional materials in strength and weight, engineering plastics are much easier and more cost-effective to manufacture.

Types of engineering plastics

Acetal (Sustarin®), also known as polyoxymethylene (POM) or polyacetal, is a general-purpose, engineered thermoplastic that is extremely strong and hard. Acetal is a semi-crystalline plastic with a sharp melting point, which means it will not gradually soften as the temperature increases. Instead, it will remain solid until the melting point is reached, at which point it quickly changes from a solid into a low-viscosity or thin liquid.


  • Excellent dimensional stability
  • Excellent machinability
  • Hardness, strength and rigidity
  • Good chemical resistance
  • Low coefficient of friction

Acetal is commonly used in precision parts requiring low friction, high stiffness, and good dimensional stability (i.e. maintains its original dimensions when it is exposed to changes in temperature and humidity), such as:

  • Precision Parts
  • High Performance Engineering Components
  • Gear Wheels
  • Ball Bearings
  • Ski Bindings
  • Fasteners
  • Knife Handles
  • Lock Systems

Polyamide (Sustamid®)

Polyamide (Sustamid®) is a partially crystalline thermoplastic nylon. Due to its good mechanical strength, abrasion resistance, and low friction properties, it is known as the workhorse of engineering plastics.


  • Excellent abrasion resistance
  • Very good mechanical strength
  • Very good chemical, thermal and low friction properties
  • Excellent bearing material
  • Excellent short-term and long-term heat resistance


  • Sliding Parts
  • Cable Winches
  • Lifting Gears
  • Rope Pulleys
  • Conveyor Stars
  • Spiral Conveyors
  • Insulation bushing
  • Gears & Sprockets
  • Crane pulleys ( sheaves )

Edcon Steel’s range of acetal products





Buy steel online. Delivery or In-store pick up.

At Edcon Steel, we’re your one-stop shop for steel, metal, tools and gear. Over the last 50+ years, we’ve built a reputation as the steel experts with the biggest range and best service.

Available for a quote and online purchase 24/7, you can browse over 2,000 steel products. Plus, most of our stocked products can be custom-cut to your requirements, so you only pay for what you need.

You can browse our online steel store or search the steel and metal website to find the right steel or metal for your next project.

Our most popular steel and metal products

Structural Steel Beams, C-Section, Columns, Angles

Browse Now

316 Stainless Steel. Sheet & Plate, Angle, Bar, Pipe, Tube

Browse Now

Precision Metals - Gauge Plate & Silver Steel

Browse Now

Cattle & Sheep Handling. Steel Panels, Gates, Ramps, Crush

Browse Now

Buy Rural Fencing Online. Wire, Pickets, Posts, Gates

Browse Now

Buy Welded Mesh Online. Mesh and Perforated

Browse Now

Tubular Steel. Rectangular (RHS), Square (SHS), Pipe

Browse Now

Merchant Bar. Flat, Round, Square, Angles, C-Channel

Browse Now