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What does grade Q370qE stand for?

What does grade Q370qE stand for?
Nov 23, 2020

Q370qE grade is a structural steel plate for bridges. It is required to have high strength, toughness and to withstand the load and impact of rolling stock, and have good fatigue resistance, certain low temperature toughness and atmospheric corrosion resistance. The steel for tie-welding bridges should also have good welding performance and low notch sensitivity. It is used to make road bridges and railway bridges with riveted and bolt-welded structures.

steel (22)

Q—The first letter of the Chinese pinyin of "qu" for the yield point of bridge steel;

370—Yield point value, unit Mpa;

q—The first letter of the Chinese pinyin of "bridge" in bridge steel;

E—Quality level.

Application: Q370qE plate is used to make highway bridges and railway bridges with riveted and bolt-welded structures.

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