text: Nearly 180 sites in all were used for this process, having a furnace, a forge or both between the 15th century and 18th century.  Waterpower was the means of operating the bellows in the blast furnaces and for operating bellows and helve hammers in finery forges.  Scattered through the Weald are ponds still to be found called ’Furnace Pond’ or ’Hammer Pond’.  The iron was used for making household utensils, nails and hinges; and for casting cannon. The first blast furnace was recorded at Buxted in 1490.
  The industry was at its peak towards the end of Queen Elizabeth Is reign. Most works were small, but at Brenchley one ironmaster employed 200 men.  Most of them would have been engaged in mining ore and cutting wood (for charcoal), as the actual ironworks only required a small workforce.  The wars fought during the reign of Henry VIII increased the need for armaments, and the Weald became the centre of an armaments industry.  Cast-iron cannon were made in the Weald from 1543 when Buxteds Ralf Hogge cast the first iron cannon for his unlikely employer: a Sussex vicar who was gunstonemaker to the king.
  In the 16th century and the early 17th century, the Weald was a major source of iron for manufacture in London, peaking at over 9000 tons per year in the 1590s.  However, after 1650, Wealden production became increasingly focused on the production of cannon; and bar iron was only produced for local consumption.  This decline may have begun as early as the 1610s, when Midland ironware began to be sold in London.  Certainly after Swedish iron began to be imported in large quantities after the Restoration, Wealden bar iron seems to have been unable to compete in the London market.
  Cannon production was a major activity in the Weald until the end of the Seven Years War, but a cut in the price paid by the Board of Ordnance drove several Wealden ironmasters into bankruptcy.  They were unable to match the much lower price that was acceptable to the Scottish Carron Company, whose fuel was coke. A few ironworks continued operating on a very small scale. With no local source of mineral coal, the Wealden iron industry was unable to compete with the new coke-fired ironworks of the Industrial Revolution. The last to close was the forge at Ashburnham. Little survives of the furnace and forge buildings, although there are still scores of the industrys hammer and furnace ponds scattered throughout the Weald.
  Steel production was never widespread in the Weald, with most high quality steel being imported from Spain, the Middle East, or Germany. A steel forge was built upstream from Newbridge Furnace on Ashdown Forest around 1505 but had ceased production by 1539. The Sydney family, with mills at Robertsbridge forge and at Sandhurst in Kent, produced steel using skilled German workers, but faced strong competition from German suppliers. In the 17th century a steel forge existed at Warbleton in Sussex.