SPECIFICATION LIBRARY

ASTM F1554

ASTM F1554 Specification Overview

ASTM F1554 is a critical standard that delineates the requirements for anchor bolts used in connecting structural and non-structural elements to concrete foundations. This specification categorizes anchor bolts into three grades based on their mechanical properties and intended use, with specific attention to the composition and alloying elements that define their performance.

Chemical Properties

The chemical composition of ASTM F1554 anchor bolts is crucial for determining their mechanical properties and suitability for various applications. Below is an expanded table detailing the chemical properties for Grades 36, 55, and 105 of the ASTM F1554 specification, including common elements that affect the material's performance:

Grade

Carbon (Max)

Manganese

Phosphorus (Max)

Sulfur (Max)

Silicon

Chromium

Nickel

Molybdenum

36

0.26%

0.60-1.20%

0.04%

0.05%

0.15-0.30%

–

–

–

55

0.30%

0.60-1.20%

0.04%

0.05%

0.15-0.30%

–

–

–

105

0.48%

0.60-1.20%

0.04%

0.05%

0.15-0.30%

0.45-0.65%

0.25-0.45%

0.15-0.25%

Grade-Specific Chemical Properties

  • Grade 36: Primarily composed of carbon and manganese. This grade has no specific requirements for alloying elements but is restricted in terms of phosphorus and sulfur to ensure weldability and ductility.

  • Grade 55: Similar to Grade 36 in carbon and manganese content but may contain slightly more alloying elements to achieve greater strength. Still, the specification does not explicitly require these elements, focusing more on the mechanical property requirements.

  • Grade 105: Distinctive for its higher carbon content and the addition of chromium, nickel, and molybdenum. These alloying elements are instrumental in achieving the high strength and toughness required for Grade 105, making it suitable for applications where high strength and good stress resistance are essential. Grade 105 is often dual certified with ASTM A193 B7.

Implications of Alloying Elements

The inclusion of specific alloying elements in ASTM F1554 Grade 105, like chromium, nickel, and molybdenum, not only enhances the strength and hardness but also improves the bolt’s resistance to wear and fatigue. This makes Grade 105 particularly valuable in critical structural applications where failure would result in significant consequences.

Mechanical Properties

ASTM F1554 anchor bolts are specified in three distinct grades, each with tailored mechanical properties to suit varying structural demands. Below is an expanded table showcasing the mechanical properties for Grades 36, 55, and 105, further detailed to reflect their performance criteria:

Grade

Tensile Strength

Yield Strength

Elongation

Reduction of Area

Hardness

36

58-80 ksi (400-550 MPa)

36 ksi min (248 MPa min)

20% min in 8"

Not specified

80-101 HRB

55

75-95 ksi (517-655 MPa)

55 ksi min (380 MPa min)

21% min in 8"

Not specified

80-101 HRB

105

125-150 ksi (862-1034 MPa)

105 ksi min (724 MPa min)

15% min in 8"

Not specified

25-34 HRC

Grade-Specific Mechanical Properties

  • Grade 36: Offers good ductility and weldability, making it suitable for standard construction applications where high tensile strength is not critical.

  • Grade 55: Provides a balance between strength and ductility, ideal for applications that require more strength than Grade 36 but not to the extent of pre-stressed or high-tensile applications.

  • Grade 105: Designed for high-stress applications, this grade exhibits high tensile strength and lower ductility, suitable for critical structural connections in high-rise buildings and other significant engineering projects.

Applications of ASTM F1554 Anchor Bolts

ASTM F1554 anchor bolts are designed for a wide array of applications in the construction and civil engineering sectors. Their use is pivotal in ensuring the stability and safety of structures by anchoring steel to concrete foundations. Here’s an overview of the specific applications for each grade within the ASTM F1554 specification:

Grade 36 Applications

  • Commercial and Residential Buildings: Used in the construction of non-structural elements where high strength is not a critical factor.

  • Light Poles and Sign Structures: Ideal for anchoring light poles, highway signs, and other outdoor structures due to its sufficient strength and good ductility.

  • Utility and Industrial Equipment: Suitable for securing machinery and equipment to concrete foundations in various industrial settings.

Grade 55 Applications

  • Mid-Rise Construction: Employed in the construction of medium-rise buildings where higher load-bearing capacity is needed.

  • Bridge and Highway Infrastructure: Utilized in bridge construction and repair, particularly for anchoring bridge railings and other support structures.

  • Heavy Equipment Installation: Anchors heavy machinery in industrial facilities, ensuring stability under dynamic loads.

Grade 105 Applications

  • High-Rise Buildings: Essential in skyscraper construction, providing the high strength necessary to support the substantial loads of tall structures.

  • Critical Structural Connections: Used in situations where the highest strength is necessary, including earthquake-resistant buildings and major infrastructure projects.

  • Complex Engineering Projects: Integral to projects that demand exceptional mechanical properties, such as large-scale transport hubs or heavy industrial plants.

The ASTM F1554 specification offers a versatile range of anchor bolts that cater to various engineering and construction needs. From light commercial applications requiring basic anchoring solutions to high-strength demands in complex engineering structures, ASTM F1554 anchor bolts ensure the integrity and safety of connections between structural elements and concrete foundations. Their selection is crucial in providing the necessary support and stability for various types of structures across a multitude of environments and loading conditions.

 

Request A Quote

With California Fastener, you’re not just purchasing hardware— you’re gaining a partner dedicated to your projects success.

Take action today—submit your quote request and secure the strength and reliability that only California Fastener can deliver.