QUICK REFERENCE! This quick reference app includes information on ASTM standard reinforcing steel bars (rebar), standard hook details, standard stirrup/tie hook details, and ASTM reinforcing bar marking requirements and is handy for both desk and field reference.

The app provides standard rebar specifications including sizes, diameters, areas and weights along with 90-, 135- and 180-degree hook details. Included are minimum yield and minimum tensile requirements per ASTM. Industry standard bar markings for inch-pound rebar for grades 40, 50, 60, 75, 80, 100 (A615), 100 (A1035), and 120 are also shown for domestic reinforcing steel.

Links include:
- Online Resource Materials section for instant downloads and to purchase popular publications
- Rebar U, an e-learning portal for continuing education and professional development
- CRSI's website at www.crsi.org for general information on the industry and the Institute

Founded in 1924, the Concrete Reinforcing Steel Institute (CRSI) is a technical institute and Standards Developing Organization (SDO) that stands as the authoritative resource for steel reinforced concrete construction. Among the Nation’s oldest trade associations, CRSI offers many industry-trusted technical publications, standards documents, design aids, reference materials and educational opportunities.

CRSI’s members represent over 80% of the U.S. manufacturers, fabricators and placers of steel reinforcing bar and related products with over 600 locations in 49 states, and with over 15,000 employees. Members produce, fabricate and install approximately 9 million ton of reinforcing steel per year using scrap steel in efficient manufacturing operations. It is estimated that the industry impacts over 75,000 people in steel transportation and placement in North America.

The CRSI membership also includes professionals across the country who are involved in the research, design, and construction of steel reinforced concrete. CRSI staff comprises a nationwide region network of industry professionals.