Sandvik Materials Technology has been awarded the contract to supply specialist heat exchanger tubes to a prestigious chemical green field project in Nanjing, China.
More than 400 tonnes of duplex tubes, including both straight and U-bend, are to be supplied and installed at a world-scale Propylene Oxide (PO) production plant with the first quantities being delivered in October 2014 and continuing into the first quarter of 2015. Sandvik is also working closely the engineering team which is providing the technical support for the project and have also attended special technical training sessions at the Zhenjiang tube mill.
The production of PO results in a corrosive process environment which can have particularly detrimental effect on carbon steel equipment. Sandvik SAF 2205™ duplex stainless steel tubes were specified for the project due to the fact they are particularly suitable for use in applications involving highly corrosive conditions. The material offers excellent mechanical strength as well as high levels of resistance to general corrosion and other types such as stress corrosion cracking, and pitting and crevice corrosion.
Properties of Sandvik SAF 2205 ensure longer life of the tubes, with superior properties to standard stainless steels that have been shown to last for as little as 12 to 18 months in some cases. This in turn means that maintenance time and costs are reduced, with the added benefit of the potential for production downtime being kept to a minimum.
Sandvik’s win is the result of five months intensive technical discussions led by the manufacturer’s Zhenjiang team, and was achieved against tough competition from a number of other tube producers and suppliers in the region.
Key to Sandvik being awarded the contract was a site visit and audit undertaken by the customer’s project team, who were extremely impressed with the quality of operations, facilities and staff at the mill, which was subsequently named as the preferred mill to handle the project. In addition, Sandvik built good relationships with the key fabricators and those responsible for engineering procurement construction (EPC).
Daniel Zhao, Regional Sales Manager, Great China, for Sandvik Materials Technology, said: “Winning this contract is the result of many months of hard work and discussion involving our technical and sales teams as well as our global project manager, who all contributed to our success in securing this business.
“In addition to the high standard of our mill and its facilities, the high resistance to corrosion offered by the Sandvik SAF 2205 was a major factor. We are delighted that all our efforts have been rewarded, and we look forward to working with our customers on this exciting project that will prove essential to the region’s up and down stream production growth.”
PO is a high added value petrochemical product designed for energy efficiency and noise absorption. It is used for insulation purposes and comfort applications in building, construction and the automotive industry, as well as for home furniture production.
For further information on Sandvik Materials Technology visit the website: www.smt.sandvik.com.
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