Search results
Results from the WOW.Com Content Network
British iron bar currency was a form of currency consisting of iron bars that appears to have been the first currency used in Britain. [1] Iron currency bars first appeared around 200BC. [ 2 ] Finds at Hod Hill suggest that the Iron bar currency stopped being used as coins were adopted.
The normal yield strength grades available are 195, 235, 275, 355, 420, and 460, although some grades are more commonly used than others e.g. in the UK, almost all structural steel is grades S275 and S355.
In 1936, the contribution to UK steel production from the north east was 27.3%, but by this time much of the ore was being imported. [19] Apart from a dip in 1922, the smelters on Teesside first started using a greater proportion of imported ore over that mined locally in 1936. [20] Iron ore usage on South Teesside 1913 – 1936, expressed in ...
Gray iron, or grey cast iron, is a type of cast iron that has a graphitic microstructure. It is named after the gray color of the fracture it forms, which is due to the presence of graphite. [ 1 ] It is the most common cast iron and the most widely used cast material based on weight.
The Loftus Iron Company was established c. 1873/74 at Skinningrove on the north east coast of England between Redcar and Whitby. Initially two blast furnaces were built, approximately 1 mile from ironstone workings. [1] [2] In 1877, the business was liquidated, and was acquired by the Skinningrove Iron Company in 1880. [3]
The company also provided samples of ore, coal, pig iron and wrought iron, a smaller gun, a sugar cane mill, an olive mill and an elliptograph. [33] The Low Moor company bought the Bierley Ironworks in 1854. [34] By 1855 Low Moor was producing 21,840 tons of iron per year, and was the largest ironworks in Yorkshire.
The Iron Bridge was the first of its kind to be constructed, although not the first to be considered nor the first iron bridge of any kind. An iron bridge was partly constructed at Lyons in 1755, but was abandoned for reasons of cost, [ 10 ] and a 72-foot-10-inch (22.2 m) span wrought iron footbridge over an ornamental waterway was erected in ...
The Iron and Steel Trades Confederation (ISTC) was a British trade union for metal-workers and allied groups, being the largest union in these fields. [1] It was formed on 1 January 1917 as a merger of existing steel-workers' unions and it is now part of Community .