The above specifications are the production specifications of Chinese steel factories, HRB400 and HRB400E are equivalent to ASTM A615, Grade 60

Time：22/04/2023 07:43:19

Alphabetical codes of steel bars of various grades in construction engineering: Primary steel bars: HPB235 and HPB300, ordinary smooth steel bars Secondary steel bar: HRB335, which is a threaded steel bar Tertiary steel bar: HRB400, HRB400E is a threaded steel bar Four grades of reinforcement: HRB500, HRB500E have crescent rib reinforcement and rebar

Time：22/04/2023 07:38:50

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