![]() Read more about the history of duplex stainless steel in this article by Mark Newman on our website materials. These are typically alloyed in a way that makes them quite difficult to produce and heat-treat. Tube Size Ranges An almost limitless size range is available with non-standards being. Sandvik Materials Technology is today most known for its advanced duplex stainless steels, that is a steel with a combined ferritic-austenitic structure that performs well in any application including chlorides. Stainless Steel // General Information // Tube. In a normal year, we produce roughly 200 different alloys in our melt shop", he says. "Today, we have some 900 different active stainless steel recipes in our library, although many of them are varieties with minor differences, and not all are melted on a regular basis. Tubesales Stainless is an Australian owned and independent, Stainless Steel merchant that has been operating in Melbourne's northern suburbs for over 30 years. Tom Eriksson, VP and Head of Strategic Research"Even though we have modernized the equipment from those days, and added processes like continuous casting and extrusion, some of the fundamental processes like pilgering, ingot rolling and forging are the same", says Tom Eriksson, VP & Head of Strategic Research at Sandvik Materials Technology. This meant a significant rationalization because a single operation could replace several cold drawings in the earlier method, and the resulting quality was even better. This process, further developed by Sandvik's metallurgists, made it possible to reduce both the outer diameter and the thickness of the tube material in a single rolling operation. In 1932, Sandvik acquired an exclusive Nordic license related to cold rolling of steel tubes using the pilgering method for 60,000 dollars. This became the breakthrough of stainless steel.Īt this point, in the early 1930s, Sandvik had 30 different grades of stainless steel in production. Even a sintering plant and new electrical arc furnaces were set up. In 1930, the steel mill's cold-rolling operations were completely rebuilt, inside and out. ![]() A period of expansion and investments followed. The steel laboratory was enlarged to prepare for the new steel grades together with other production investments.
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