ASTM A615 Concrete Rebar Grade 40
A615 grade 40 steel adds the most benefit when building materials must hold concrete in compression. Strength is one of the differentiators for these two rebar grades. The minimum tensile strength for A615 grade 40 steel is 70.05 ksi. It has a minimum yield strength of 40 ksi.
HPB300/HRB335/HRB400/HRB500 Reinforcement
B1499.2-2007 is a European standard steel bar. Generally, GB1499.2-2007 standard deformed steel bars are made using the hot-rolled method, meaning that these are the most common types of deformed steel bars. These are available in different lengths and sizes, all the way from 6 mm in diameter to 50 mm in diameter. When it comes to length, 9 m and 12 m are the common sizes.
Epoxy resin coated steel bar is an epoxy resin protective coating prepared on the surface of ordinary steel bar by electrostatic spraying powder high temperature sintering process. The coating has excellent chemical corrosion resistance and does not react with acid and alkali. And the coating has anti-permeability, so it can delay the corrosion medium (such as water, oxygen, chloride, etc.) contact with the steel, so that its corrosion resistance life is greatly extended. China's epoxy coated steel bars adopt national standards GB/T 25826-2010 and Ministry of Housing and Construction standard JG/T 502-2016 (replacing JG 3042-1997). American standards are ASTM A775/A775M and ASTM A934/A934M, and British standard is BS ISO 14654.
BS4449 Steel Reinforcement Rebar
The differences between the, B and C designations are complex and related to structural tolerances. For steel mesh products, B500A grade steel is usually used, and for steel bars, B500B grade steel is used. B500C steel is rarely required, and it is always worthwhile for structural engineers to check whether B500B grade steel can be used instead of B500C, because B500C usually has a significant cost overhead.
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