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Paper originally delivered at the BSSA Conference ‘Stainless Solutions for a Sustainable Future’ held in Rotherham on 3rd April 2003. The paper describes what is happening to the world and what will continue to happen if people do not become more environmentally friendly. I looks at, for example, global warming, the UK’s energy consumption and resource depletion and then goes on to discuss the way forward by using sustainable design, execution and recycling.
The European ‘ELV’ directive 2000/53/EC should not have a detrimental affect on stainless steels intended for applications in automobiles. Analysis work done so far shows that the levels of lead, mercury and cadmium are well below the levels currently understood to be the limits. Stainless steels do not contain hexavalent chromium and so this requirement is not relevant.
The main factor in the selection process for stainless steels is corrosion resistance. Careful consideration of the application should be done to enable a choice of grade with suitable corrosion resistance whilst keeping costs to an economic minimum. Other considerations such as mechanical properties (strength and toughness), physical properties (magnetic permeability) and forming, fabrication and joining methods available should be secondary. (91)
Paper originally delivered at the BSSA Conference ‘Stainless Solutions for a Sustainable Future’ held in Rotherham on 3rd April 2003. ISSF have undertaken the commitment to provide the best possible information to the industry stakeholders in the area of life cycle assessment, delivering transparent and authoritative data on the production of stainless steel from its raw materials. The paper describes the process involved in managing the life cycle inventory building, data presentation, data application and ability of our peers to influence decisions based on a life cycle management principle.
Life cycle costing (LCC) converts all the initial capital and future operating costs of a project to present day values, thus allowing a comparison to be made between different material selection options. The LCC calculation is described. An illustration is given of its practical application to choice of material for part of a waste water treatment plant.
Stainless steel products are designed for a long life. Nevertheless, they are readily recycled at the end of their economic life and are a valuable feedstock for the stainless steel producer, thus contributing to sustainable development.
The original version of European directive 2002/95/EC effectively out-lawed stainless steels and many other materials as no lead, mercury, cadmium, hexavalent chromium, poly-brominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE) content was to be allowed in materials that would be part of equipment ‘which is dependant on electric current in order to work properly’. This has now been rectified in the Official Journal of the European Union document C(2005) 3143, 2005/618/EC, published on 18th August 2005, allows maximum levels of 0.1% for all these, except cadmium which is 0.01%, which is the same as in the ELV directive. In stainless steels only the restrictions to the elements lead, mercury and cadmium are relevant. Commercially produced stainless steels can be expected to comply with the amended RoHS requirements, without actual values being measured or declared by the steelmaker or supplier.
Paper originally delivered at the BSSA Conference ‘Stainless Solutions for a Sustainable Future’ held in Rotherham on 3rd April 2003. This paper reviews the maintenance of economic growth in the stainless steel industry The social responsibilities adopted by AvestaPolarit towards its employees, protection of the environment and the ways in which the company has adopted a policy of prudent use of resources are discussed. The life cycle cost benefits of stainless steels are contributing to the market growth and sustainability of stainless steels.