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What grade of steel is weathering steel?
Weathering steels are a family of ASTM specifications, as well as several trademarked specifications exhibiting similar corrosion-resistant properties. The ASTM specifications are A588, A242, A606-4, A847, A871-65 and A709-50W.
What are the materials in weathering steel?
The key elements in weathering steels are small amounts of copper, chromium, nickel, silicon, and phosphorus. These elements, when exposed to alternating wet and dry conditions, develop the protective oxide layer – the weathering steel's patina.
Description
S355J2W is a medium tensile, low carbon manganese weathering steel which is readily weldable and possess good impact resistance, including in low temperatures. This material is commonly supplied in the untreated or normalized condition.
Machinability of this material is similar to that of mild steel.
S355J2W is equivalent to CorTen B steel plate.
What is an example of weathering steel?
Weathering steel is popularly used in outdoor sculptures for its distressed antique appearance. One example is the large Chicago Picasso sculpture, which stands in the plaza of the Daley Center Courthouse in Chicago, which is also constructed of weathering steel..
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