Oregrounds iron was a grade of iron that was regarded as the best grade available in 18th century England. The term was derived from the small Swedish...

making wrought iron by 1600. It was introduced to Sweden by Louis de Geer in the early 17th century and was used to make the oregrounds iron favoured by...

Sweden to use the Walloon process of fining iron, producing what was known in England as oregrounds iron. It was so called from the Swedish port of Öregrund...

purposes, and wrought iron production went into decline. Oregrounds iron—a particularly pure grade of bar iron made ultimately from iron ore from the Dannemora...

used, mainly for the production of a particularly pure kind of iron known as oregrounds iron, which was exported to England to make blister steel. Its purity...

for this process were bars of iron. During the 17th century, it was realized that the best steel came from oregrounds iron of a region north of Stockholm...

iron called oregrounds iron.[citation needed] The source material was pig iron produced by a blast furnace using charcoal and the manganese rich iron...

business jointly. They were leading participants in the cartel in oregrounds iron, the raw material for blister steel. After Richard's death, Joseph...

where he employed Walloon ironmakers. Iron made there by this method was known in England as oregrounds iron. Peter N. Stearns wrote that the development...

produced about 200 tonnes of steel per year from Swedish wrought iron (see Oregrounds iron). The introduction of Huntsman's technique changed this radically:...

other iron mines. They named the community Dannemora, after their former home. In England, iron produced from Dannemora ore was known as oregrounds iron, after...

Forsmark plant itself. Forsmark formerly had an ironworks producing oregrounds iron. "Forsmark: how Sweden alerted the world about the danger of the Chernobyl...

exported through Öregrund. In England the best quality wrought iron was known as Oregrounds iron. Fishing was basically the only industry through the centuries...

number of years in the 18th century. The iron produced at Leusta was of a kind known in England as oregrounds iron, after the port town of Öregrund. The...

reference was in 1481. The mine has a depth of 640 metres and supplied oregrounds iron by the Walloon process (Vallonsmide) using a blast furnace and finery...

were Walloon forges, producing high quality oregrounds iron for export. Österby's brand mark was OO. All iron was branded with that mark. The Österby ironproducts...

steel-makers who, however, were using the very best imported Swedish Oregrounds iron.[citation needed] In 1816 Troye co-authored with one S. Glover A Description...

History of the Forest of Dean (1971), 10–14. P. W. King, 'The cartel in oregrounds iron' Journal of Industrial History 6 (2003), 28–9. H. W. Paar and D. G...