ASTM A615
Basic Info
ASTM A615 is essential for reinforcing steel used in construction, providing specifications for its chemical composition, mechanical properties, and deformation characteristics. This standard is critical for ensuring the safety and durability of concrete structures, as reinforcing steel bars (rebars) are used to strengthen and support concrete in buildings, bridges, and infrastructure projects.
Characteristics
Yield Strength: A615 specifies minimum yield strength requirements for reinforcing steel, ensuring structural integrity.
Ductility: This steel offers good ductility and elongation properties, allowing it to deform without failure.
Bonding: A615 steel bars have ribbed surfaces for improved bonding with concrete, enhancing structural stability.
Corrosion Resistance: Some A615 grades are corrosion-resistant, important for long-term durability in concrete structures.
ASTM A615 Data Sheet
Steel Grade
Dimensions and Tolerances
Equivalent Steel Grades
Chemical Composition
Mechanical Properties
Fabrication and Welding
Steel Grade
Grades:
- Grade 40
- Grade 60
- Grade 75
- Grade 80
Dimensions and Tolerances
Steel Grade: Grade 40
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 60
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 75
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 80
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 40
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 60
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 75
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Steel Grade: Grade 80
- Shape: Deformed
- Nominal Width (mm): 6 – 16
- Nominal Thickness (mm): 6 – 16
- Tolerance on Width (mm): ± 0.4
- Tolerance on Thickness (mm): ± 0.3
Equivalent Steel Grades
Steel Grade: Grade 40
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Japan (JIS G3112): SD295A
- China (GB 1499.2): HRB335
Steel Grade: Grade 60
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Japan (JIS G3112): SD390A
- China (GB 1499.2): HRB400
Steel Grade: Grade 75
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Japan (JIS G3112): SD490B
- China (GB 1499.2): HRB500
Steel Grade: Grade 80
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Data for Japan and China not provided.
- 2: Description Using First Row as Title
Steel Grade: Grade 40
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Japan (JIS G3112): SD295A
- China (GB 1499.2): HRB335
Steel Grade: Grade 60
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Japan (JIS G3112): SD390A
- China (GB 1499.2): HRB400
Steel Grade: Grade 75
- Canada (CSA G30.18): CAN/CSA G30.18-M92
- Japan (JIS G3112): SD490B
- China (GB 1499.2): HRB500
Steel Grade: Grade 80
- Canada (CSA G30.18): CAN/CSA G30.18-M92
Chemical Composition
Steel Grade: Grade 40
- Carbon (C): 0.25% max
- Manganese (Mn): 1.00% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 60
- Carbon (C): 0.26 – 0.42%
- Manganese (Mn): 1.35% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 75
- Carbon (C): 0.26 – 0.42%
- Manganese (Mn): 1.35% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 80
- Carbon (C): 0.26 – 0.52%
- Manganese (Mn): 1.35% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 40
- Carbon (C): 0.25% max
- Manganese (Mn): 1.00% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 60
- Carbon (C): 0.26 – 0.42%
- Manganese (Mn): 1.35% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 75
- Carbon (C): 0.26 – 0.42%
- Manganese (Mn): 1.35% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Steel Grade: Grade 80
- Carbon (C): 0.26 – 0.52%
- Manganese (Mn): 1.35% max
- Phosphorus (P): 0.060% max
- Sulfur (S): 0.060% max
- Silicon (Si): 0.60% max
- Copper (Cu): 0.20% max
Mechanical Properties
Steel Grade: Grade 40
- Yield Strength: 40 ksi (280 MPa)
- Tensile Strength: 60 ksi (420 MPa)
- Elongation in 8 inches: 12%
- Elongation in 2 inches: 8%
- Reduction of Area: 15%
Steel Grade: Grade 60
- Yield Strength: 60 ksi (420 MPa)
- Tensile Strength: 80 ksi (550 MPa)
- Elongation in 8 inches: 9%
- Elongation in 2 inches: 6%
- Reduction of Area: 15%
Steel Grade: Grade 75
- Yield Strength: 75 ksi (520 MPa)
- Tensile Strength: 90 ksi (620 MPa)
- Elongation in 8 inches: 8%
- Elongation in 2 inches: 6%
- Reduction of Area: 15%
Steel Grade: Grade 80
- Yield Strength: 80 ksi (550 MPa)
- Tensile Strength: 100 ksi (690 MPa)
- Elongation in 8 inches: 8%
- Elongation in 2 inches: 6%
- Reduction of Area: 15%
Steel Grade: Grade 40
- Yield Strength: 40 ksi (280 MPa)
- Tensile Strength: 60 ksi (420 MPa)
- Elongation in 8 inches: 12%
- Elongation in 2 inches: 8%
- Reduction of Area: 15%
Steel Grade: Grade 60
- Yield Strength: 60 ksi (420 MPa)
- Tensile Strength: 80 ksi (550 MPa)
- Elongation in 8 inches: 9%
- Elongation in 2 inches: 6%
- Reduction of Area: 15%
Steel Grade: Grade 75
- Yield Strength: 75 ksi (520 MPa)
- Tensile Strength: 90 ksi (620 MPa)
- Elongation in 8 inches: 8%
- Elongation in 2 inches: 6%
- Reduction of Area: 15%
Steel Grade: Grade 80
- Yield Strength: 80 ksi (550 MPa)
- Tensile Strength: 100 ksi (690 MPa)
- Elongation in 8 inches: 8%
- Elongation in 2 inches: 6%
- Reduction of Area: 15%
Fabrication and Welding
Steel Grade: Grade 40
- Fabrication Considerations
– Suitable for welding.
– Preheating not usually required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating not usually required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 60
- Fabrication Considerations
– Suitable for welding.
– Preheating generally not required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating generally not required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 75
- Fabrication Considerations
– Suitable for welding.
– Preheating generally not required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating generally not required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 80
- Fabrication Considerations
– Suitable for welding.
– Preheating generally not required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating generally not required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 40
- Fabrication Considerations
– Suitable for welding.
– Preheating not usually required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating not usually required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 60
- Fabrication Considerations
– Suitable for welding.
– Preheating generally not required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating generally not required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 75
- Fabrication Considerations
– Suitable for welding.
– Preheating generally not required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating generally not required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Steel Grade: Grade 80
- Fabrication Considerations
– Suitable for welding.
– Preheating generally not required.
– Post-weld heat treatment generally not necessary.
– Use low-hydrogen electrodes for improved toughness.
– Avoid excessive heat input during welding.
- Welding Considerations
– Good weldability with conventional methods.
– Use low-hydrogen electrodes or filler material.
– Preheating generally not required but beneficial.
– Control interpass temperature.
– Post-weld heat treatment generally not necessary.
Building Beyond Limits: The Resilience of ASTM A615 Grade 60 Steel
ASTM A615 Grade 60 steel stands out as a beacon of strength and reliability in the world of construction materials. Renowned for its exceptional combination of strength and ductility, Grade 60 rebar offers unmatched durability in reinforcing concrete structures. Customers seeking materials that can withstand the toughest conditions find solace in Grade 60’s impressive yield and tensile strength, ensuring structures stay strong and resilient over time. Whether it’s skyscrapers reaching for the sky or bridges spanning great distances, Grade 60 steel is the backbone that engineers trust. Its high-strength properties provide the peace of mind that projects will endure the tests of time and nature’s forces. When durability matters most, ASTM A615 Grade 60 steel emerges as the champion, offering customers a reliable and steadfast foundation for their ambitious construction endeavors.
Furthermore, the superior weldability of ASTM A992 steel ensures strong and durable weld joints, contributing to the overall structural integrity and safety of the finished project. Whether it’s for constructing high-rise buildings, bridges, or industrial facilities, the ease of welding ASTM A992 steel provides contractors and engineers with confidence in achieving high-quality, reliable structures that meet the stringent demands of modern construction standards and regulations.
