Welcome to Macsteel Special Steels


Macsteel Special Steels is Southern Africa’s leading distributor and processor of speciality metals.
 About Macsteel Special Steels

 

Manufacturing, adding value and distributing the highest quality speciality steels

Macsteel Special Steels is Southern Africa’s leading distributor and processor of engineering steels. Located in Dunswart, Boksburg, Macsteel Special Steels’ operates as the crucial link between steel producers and consumers of high grade special steels , satisfying their requirements for flexibility and reliability. A variety of volume per size and grade to close dimensional tolerances and short notice deliveries including specific customized requirements are all well within its product and service offering. The Dunswart operation provides thermal treatment (heat treatment) of finished metal components and or un-worked metal to meet customers’ requirements, through processes that optimize metallurgical properties. Heat treatment is carried out in vacuum furnaces, Sealed Quench furnaces, Shaker Hearth furnaces, Austemper Mesh Belt furnaces and Top Hat furnaces.

Unique specialised offerings to valued customers include a world class in-house laboratory providing various metallurgical services, including destructive and non-destructive testing and the conducting of metallurgical investigations.

Macsteel Special Steels’ extensive speciality steels solution includes its Macsteel Bright Bar facility in Meyerton with additional warehousing and distribution facilities in Durban. This Business Unit manufactures and supplies bright steel shafting to the domestic and international markets which comply to the most stringent tolerances and specifications. With over 40 years of manufacturing experience, Macsteel Bright Bar has developed and expanded on its comprehensive product range which includes cold drawn, round peeled bar and hexagons in sizes from 4 mm to 160mm. Attention to new and developing technology is consistently applied to meet the increasing requirements of its valued customer base. Equipped with the most advanced testing equipment, quality products and service remain the key elements which enhance its enviable reputation in the market.

Macsteel Special Steels is ISO 9001:2008, ISO 14001:2004 and ISO 18001:2007 accredited.

Special Steels are defined as:

 “Wrought steels for mechanical and allied engineering purposes with emphasis on high carbon and high alloy steels”.

  • We function as a link between steel producers and end-users, satisfying our customer’s demands for flexibility and reliability. Small volumes per size/grade, close dimensional tolerances, specified short notice deliveries and other customized requirements are all well within our scope and capabilities.

  • We provide thermal treatment (heat treatment) of finished metal components and/or un-worked metal to meet client’s requirements through processes that optimize metallurgical properties.

  • Our service offering includes metallurgical services – through our in-house laboratory – for destructive and non-destructive testing as well as conducting metallurgical investigations.

All of the services provided are conducted in accordance with the ISO 9001:2000 Quality Standards.

 

Location and Services

 Our extensive special steels warehouse, heat treatment facility and metallurgical laboratory is located in Dunswart, Gauteng. This magnificent facility is supported by the Macsteel Group’s strategic network of 84 branches which are spread throughout the Republic and sub Saharan Africa.

 

Product Range

With over sixty years of experience in our chosen field the company has developed and expanded a product range and process range which includes:

Product - BS 970 (1983):

  • Carbon Steels:070 M20 (EN3A), 080 M40 (EN8), 070 M55 (EN9), 080 M15 (EN32C), 150 M15 (EN14B)

  • Alloy Steels:
    709 M40 (EN19), 817 M40 (EN24), 826 M40 (EN26), 835 M30 (EN30B), 655 M23 (EN36B, 835 M15 (EN39B), K0006

  • Tool & Die Steels:
    Hot-Work Steels, Cold-Work Steels, Plastic Mould Steels, High Speed Steels

  • Bright Drawn/Peeled Bar:
    Cold Drawn Round and Peeled Bars in rounds and hexagons in the size range from 4mm to 160mm.

  • Hollow Bar:
    Heavy Walled Seamless Mechanical Tubing in grades ST52 and TI6V.


Processes

Heat Treatment is carried out in vacuum furnaces, Sealed Quench furnaces, Shaker Hearth furnaces, Austemper Mesh Belt furnaces and Top Hat Furnaces.

  • Processes undertaken are:
    - Annealing
    - Stress-relief annealing
    - Hardening, quench and temper
    - Case Hardening
    - Normalising
    - Tempering
    - Martempering

  • Processes (Laboratory)
    - Tensile testing up to 500Km
    - Charpy and 120D impact testing
    - Microstructure Analysis
    - Spectrographic Analysis
    - Magnetic Particle Testing
    - Ultrasonic testing
    - Dye penetrait testing
    - Hardness testing (Brinell, Vickers, Micro Vickers, Rockwell)
    - Failure investigations

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