What’s relationship automatic Stirrup bender with reinforcement steel yield strength?

steel wire stirrup bender

Automatic Stirrup bender have relationship with reinforcement steel yield strength.Higher yield strength need more power to make steel wire straight and cut to length.

At present, the reinforcement steel used in foreign concrete are basically 300MPa.

There are three main grades of 400 and 500MPa. 400MPa and above are generally used in engineering.70%~80%,  400MPa level applications are the main ones.

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For the merger of relatively small land area and non-seismic area (such as the United Kingdom, Germany), pick it directly 500MPa grade steel bar. The first is that the steel does not need to have seismic performance.At the same time, the overall construction volume of these countries is not large.https://www.pinterest.com/pin/819725569676886577/

Australia adopts two strength grades of 250MPa and 500MPa, and New Zealand adopts 400mpa grade, 500MPa grade steel.

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The strength level of reinforcement steel in Europe is relatively high, and the European standard EN1992 steel bar strength is stipulated as 400~600MPa level, the most important of which is that most of Europe is a non-seismic zone (only southern, The requirement for ductility of steel bar is not high. The pursuit of high strength.High-strength steel bars with heat treatment are used in most areas of Europe. To adapt to the buildings in the earthquake zone of Southern Europe A, B, C three Grade C ductility has a requirement that the ultimate strain is greater than or equal to 7.5% (this ultimate strain E has resistance . S450 high-strength steel bar (ductility class C) in the EU specification.https://www.facebook.com/Stirrup-rebar-bending-machine-110175957833115

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