Green supplies Q550D high-strength structural steel plate coils with quality assurance

材质：

高强度结构钢板

规格：

常规齐全

品牌：

国产进口

The Chinese name of a grade of steel with a yield strength of It consists of three parts: letter, yield strength value, and quality grade symbol, for example
Where
The first letter of the Chinese pinyin of the yield strength of steel
Yield strength value, unit
Quality grade The levels are divided into,,.
When the purchaser requires the steel plate to have thickness direction properties, a symbol representing the thickness direction performance level will be added after the above specified grade, for example.
Mainly used in important low-temperature and high-strength structural parts, engineering machinery, mining steel structural parts, etc.
Grade standard B/ B/
Grade
Others
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Appropriate amount
Grade
Specifications
Yield strength? Tensile strength b? Elongation? ℃ impact test
? Longitudinal

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Smelting method
Steel is made from converter or Smelting in an electric furnace and refining outside the furnace if necessary.
Steel is usually delivered in a quenched and tempered state.