Product Highlights & White Papers

Material Matters - Duplex and Super Duplex

Material Matters

Duplex stainless steel, so-called because it has a mixed microstructure with about equal proportions of ferrite and austenite, was first developed more than 70 years ago in Europe.

The key feature of stainless steel is its corrosion resistance, the bulk of which is provided by the chrome content of the steel. Chrome on the surface of the metal reacts with oxygen to form chrome oxide, which is chemically inert and forms a protective layer for the underlying metal. As chrome is intrinsic to the material, wearing away the layer just exposes more chrome, allowing another protective layer to form.

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CE Marked, Tested & Certified Stainless Marine Shackles

CE Cetified Stainless Steel Bow Shackle

Petersen has manufactured tested & certified CE marked stainless steel lifting shackles for many years. Typically these shackles are used in safety critical applications in harsh operating environments. Most applications for a shackle on a yacht are safety critical & the marine environment is one of the toughest.

We are the only stainless steel shackle manufacturer which:

  • Operates a full traceability quality system to the aircraft industry standard AS9100:C
  • Designs & manufactures with a minimum 6:1 factor of safety
  • Individually proof-load tests all shackles to 2 x WLL
  • Etches a unique test reference number on each shackle - this also appears on the EN10204 3.1 test certificate
  • CE marks stainless steel shackles & supplies with safe usage instructions
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    GTB Chromed-Bronze Turnbuckle Bodies

    Hi-MOD Swageless Compression Fittings

    Petersen GTB Chromed-Bronze Turnbuckle Body key benefits:

  • Machined from ultrasonically inspected naval grade solid bronze bar
  • Chrome plated to service condition 4 - the highest available
  • Manufactured entirely in the UK
  • Up to 25% lighter than old-fashioned forged bodies
  • Modern, low-windage design
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    Hi-MOD Swageless Compression Fittings

    Hi-MOD Swageless Compression Fittings

    The Hi-MOD swageless compression terminals were first developed by Petersen Stainless Rigging after a request from a manufacturer of roller-furling gear. The design process threw up some interesting results which led to the development of what is widely regarded as the best swageless compression terminals on the market.

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    Swage Shroud Terminals

    Hi-MOD Swageless Compression Fittings

    Petersen Stainless Rigging has been forging swage shroud terminals (spoon terminals) since they were first introduced to the market by Kemp Masts many years ago. The heads on our shroud terminals are forged from low-carbon 316L using the same technology we use to make our certified lifting shackles to give a superior grain-structure with excellent fatigue and corrosion resistance.

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    Slip-Stick White Paper

    Hi-MOD Swageless Compression Fittings

    Slip-Stick is the terminology used to describe a phenomenon which can sometimes occur at high loads inside a swage terminal. As the name suggests it is characterised by the wire slipping and then sticking inside the terminal. It should only occur at loads you would never expect a fitting to work at. This white-paper gives important information about how to ensure this doesn't occur at lower loads.

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    Swage Tee Terminals

    Hi-MOD Swageless Compression Fittings

    Petersen Stainless Rigging is pleased to announce our range of 741 style swage tee terminals. In an improvement on the original, the heads on our tee terminals are forged from low-carbon 316L using the same technology we use to make our certified lifting shackles to give a superior grain-structure with excellent fatigue and corrosion resistance.

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