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The transverse rib geometry of imported rebar is mainly ordinary square thread or ordinary oblique square thread. The transverse rib geometry of domestic rebar mainly includes spiral shape, herringbone shape and crescent shape. The order principle of rebar is generally based on the mechanical process performance or mechanical strength index on the basis of meeting the gripping performance requirements required by engineering design.
The corresponding national standards for steel bars ASTM A-615-04a are:
A615 Gr.40 is equivalent to HRB 400 of national standard GB/T 1499.2-2018,
The A615 Gr.60 is equivalent to the national standard GB/T 1499.2-2018 HRB 500
The A615 Gr.80 is equivalent to HRB 600 of the national standard GB/T 1499.2-2018
ASTM A615 ASTM A615 is the U.S. standard for Carbon steel ribbed and round steel bars for reinforced concrete reinforcement.
The current ASTM A615 standard (2012 edition) contains four grades of rebar - Class 40, Class 60 (60 KSI, 420MPa, 60 and above strength rebar is high strength rebar), Class 75 (75 KSI, 520MPa) and Class 80 (80 KSI, 550MPa).
Theoretical weight
Diameters are manufactured to imperial standard (ASTM A615 standard)
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Tianjin TISCO is a professional steel supplier. With the support of the most professional steel manufacturers and a large number of customers, we can not only provide you with ordinary steel, but also help you customize special steel, special size, special process shape and other services.
Tianjin TISCO uses standard export transport packaging and bundles steel bands according to the size of the stainless steel plate. We have frequent cooperation with freight forwarders to ensure the safe arrival of goods to the port.
According to our shipping experience, a 20-foot container can hold 22 tons of stainless steel, and a 40-foot container can hold 25 tons of stainless steel. For larger orders, we ship by bulk carrier, which is cheaper. Packaging can also be customized according to customer needs.
We provide our customers with planning services, just-in-time production planning and provide customized services to meet the specific requirements of end users. Our company has been committed to improving customer service and product quality for more than ten years, providing high-value solutions for customers' businesses as the basic standard of our work.
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