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In the recent past, HSS was commonly available in mild steel, such as A500 grade B. Today, HSS is commonly available in mild steel, A500 grade C. Other steel grades available for HSS are A847 (weathering steel), A1065 (large sections up to 50 inch sq made with SAW process), and recently approved A1085 (higher strength, tighter tolerances than ...
In 1918 John Lysaght (Australia) Pty Ltd was incorporated with the head office transferred from Melbourne to Sydney. In 1921 a sheet rolling and galvanising works was established next to BHP in Newcastle. [8] In 1936, the sheet mill and galvanising works of Australian Iron & Steel at Port Kembla was purchased.
In addition to the descriptive steel grade naming system indicated above, within EN 10027-2 is defined a system for creating unique steel grade numbers. While less descriptive and intuitive than the grand names they are easier to tabulate and use in data processing applications.
ISO 657 (hot-rolled steel sections) is an ISO standard that specifies the tolerances for hot-finished circular, square and rectangular structural hollow sections and gives the dimensions and sectional properties for a range of standard sizes.
The austenizing temperature, the temperature where a steel transforms to an austenite crystal structure, for steel starts at 900 °C (1,650 °F) for pure iron, then, as more carbon is added, the temperature falls to a minimum 724 °C (1,335 °F) for eutectic steel (steel with only .83% by weight of carbon in it).
The Whyalla Steelworks circa 2009. The Whyalla Steelworks is a fully integrated steelworks and the only manufacturer of rail in Australia. Iron ore is mined in the Middleback Range to feed the steelworks, resulting in the distribution of finished steel products of over 90 different grades.
In March 2012 a new coated steel manufacturing plant was inaugurated in Jamshedpur, India. [8] In February 2014, BlueScope purchased Orrcon Steel from Hills. [9] [10] Its products included RHS, SHS and CHS structural tubular steel, hot-rolled structural steel and fencing, roofing and building accessories.
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