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ASTM A615 rebar
ASTM A615 is a standard for carbon steel reinforcing bars for concrete established by the American Society for Testing and Materials (ASTM). It covers two types of products: deformed bars (rebar) and plain round bars, making it one of the most widely used standards for steel reinforcement in construction engineering.
Scope & Application
◆Covers Grade 40, 60, 75, 80, and 100 deformed steel bars (metric equivalents: Grade 280, 420, 520, 550, and 690).
◆Used in reinforced concrete construction (e.g., buildings, bridges, roads).
◆Includes plain (smooth) bars for specialized uses (e.g., dowels, spirals).
Key Requirements
►Chemical Composition (Carbon, Phosphorus, Sulfur limits vary by grade).
►Tensile & Yield Strength (Minimums):
Grade 40: 40 ksi (280 MPa) yield, 70 ksi (485 MPa) tensile.
Grade 60: 60 ksi (420 MPa) yield, 90 ksi (620 MPa) tensile.
Higher grades (75/80/100) for high-stress applications.
►Deformations: Must meet spacing, height, and spacing requirements for bond strength.
►Markings: Rolled with grade (e.g., "60"), size, and mill identification.
| Imperial Grade | Metric Grade | Yield Strength | Tensile Strength | Typical Applications |
|---|---|---|---|---|
| Grade 40 | 280 MPa | ≥40 ksi (280 MPa) | ≥70 ksi (485 MPa) | Low-strength structures |
| Grade 60 | 420 MPa | ≥60 ksi (420 MPa) | ≥90 ksi (620 MPa) | General construction (most common) |
| Grade 75 | 520 MPa | ≥75 ksi (520 MPa) | ≥100 ksi (690 MPa) | High-rise/long-span structures |
| Grade 80/100 | 550/690 MPa | ≥80/100 ksi | ≥105/125 ksi | Special high-stress applications |
Surface Characteristics
Deformed Bars (Rebar):
Rib Height ≥ 0.05d (where d = bar diameter)
Rib Spacing ≤ 0.7d (ensures optimal bond strength with concrete)
Plain Round Bars:
Smooth surface
Primarily used for secondary reinforcement (e.g., stirrups, ties)
Key Features
●High Strength: Yield strength ≥420MPa, tensile strength ≥620MPa, meeting demanding engineering requirements
●Premium Carbon Steel: Precision rolling process with stable chemical composition (C≤0.3%, P/S≤0.05%)
●Superior Bonding Performance: Standard ribbed design (rib height ≥0.05d) ensures perfect concrete adhesion
●Flexible Supply Options: Diameter 10mm-40mm | Standard lengths 6m-12m | OEM surface marking available
High-Strength Performance
◢Yield strength ≥420MPa, tensile strength ≥620MPa
◢Complies with ASTM A615 Grade 60 standard
◢Ideal for demanding construction environments (high-rises, bridges, etc.)
Premium Material Quality
◢Made from high-quality carbon steel
◢Precision rolling process ensures uniform material properties
◢Strict chemical composition control (C≤0.3%, P/S≤0.05%)
Superior Concrete Bonding
◢Scientifically designed ribs (rib height ≥0.05d)
◢Optimized rib spacing (≤0.7d) for maximum grip strength
◢Passes ISO-standard bond strength tests
Flexible Supply Options
◢Complete size range: Diameter 10mm-40mm
◢Custom lengths: Standard 6m-12m, cut-to-size available
◢OEM surface marking: Mill marks, grades, etc. per customer requirements
Strict Quality Control
◢Full-process quality tracking system
◢Third-party inspection reports for every batch
◢Complies with international standards (ASTM/BS/ISO)
Value-Added Services
◢Dedicated technical support team
◢Additional processing services (cutting, bending, etc.)
◢Global logistics solutions (FOB/CIF and other trade terms supported)
Xi'an Dongmeng Steel Co., Ltd. is a well-known enterprise in the international steel market.which is certifed by SGS Group. lt focuses on providing high-quality steel bars to customers around the world, Since its establishment, we have beenadhering to the business philosophy of"quality-oriented, integrity-first", constantly pursuingexcellence and innovation, and committed to building a world-eading steel supply chainservice system. Our customers are all over the world.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
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