Corten B is a weather resistant steel which is better suited for heavy and load bearing structures. astm A588 has different grades means Cor-ten B is having different grades.
Corten B Definition
Weathering means that due to their chemical compositions COR-TEN A and COR-TEN B steels, when utilized unprotected, exhibits increased resistance to atmospheric corrosion compared to unalloyed steels. This is because it forms a protective layer on its surface under the influence of the weather.
Corten B Mechanical properties:
Yield point min. 275 Mpa
Tensile strength min. 410 Mpa
elongation min. 25%
Tolerances on dimensions and shape according to EN 10131.
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