ASTM F3125 Alloy Steel Bolts: High-Performance Fasteners for Industrial Applications

ASTM F3125 Alloy Steel Bolts are among the most reliable and high-strength fasteners available in today’s industrial market. Engineered to endure demanding environments, these bolts are critical for structural applications that require excellent strength, durability, and resistance to stress. At ASC LLP, we specialize in supplying ASTM F3125 Alloy Steel Bolts that meet stringent quality standards, ensuring longevity and reliability across various industries.

What Are ASTM F3125 Alloy Steel Bolts?

ASTM F3125 is a specification covering high-strength structural bolts made from alloy steel, designed specifically for heavy construction and industrial applications. These bolts are heat-treated to enhance their strength and resilience, making them suitable for applications where tension, shear, and wear resistance are critical. ASTM F3125 Alloy Steel Bolts are typically used in steel structures, bridges, heavy equipment, and other large-scale projects.

The specification F3125 includes Grades A325, A325M, A490, and A490M, each offering unique properties tailored to specific applications. F3125 Alloy Steel Bolts are designed to meet rigorous requirements, ensuring optimal performance under heavy loads and extreme environmental conditions.

ASTM F3125 Alloy Steel Bolts

Key Properties of ASTM F3125 Alloy Steel Bolts

  1. High Tensile Strength: ASTM F3125 Alloy Steel Bolts are manufactured to withstand high levels of tension and shear stress, making them suitable for heavy-duty applications.
  2. Superior Hardness: The heat treatment process ensures these bolts achieve excellent hardness, which improves wear resistance and overall bolt longevity.
  3. Resistance to Fatigue: Built for durability, ASTM F3125 Alloy Bolts offer high fatigue resistance, making them suitable for repeated load applications such as structural construction.
  4. Corrosion Resistance: Many ASTM F3125 bolts are coated with anti-corrosion treatments, enhancing their ability to resist environmental degradation, especially in harsh conditions.
  5. Impact Toughness: Designed for heavy-duty applications, these bolts perform exceptionally well in low-temperature and high-impact situations, providing stability and safety.
  6. Dimensional Accuracy: ASTM F3125 Alloy Bolts are precisely manufactured, ensuring a secure fit, which is critical for structural integrity in industrial applications.

Advantages of ASTM F3125 Alloy Steel Bolts

  1. Enhanced Strength and Durability: Alloy steel provides significant strength enhancements over standard steel bolts. This makes ASTM F3125 Alloy Steel Bolts ideal for applications that demand durability and reliability.
  2. Wide Range of Applications: These bolts are versatile and can be used in bridges, industrial plants, high-rise buildings, and any structure where strong fastening is essential.
  3. Cost-Effectiveness: Despite their strength and durability, ASTM F3125 Alloy Bolts offer a cost-effective solution for large projects, reducing the need for frequent replacements.
  4. Heat Treatment for Improved Properties: The heat-treated alloy steel in ASTM F3125 bolts ensures optimal mechanical properties, including tensile strength, hardness, and ductility, making them resilient against deformation.
  5. Reliable Under High Loads: These bolts are specifically designed for high-stress applications, ensuring stability and structural integrity even under heavy loads.
  6. Internationally Recognized Standards: The ASTM F3125 specification is recognized globally, making these bolts compatible with construction standards worldwide and ideal for both domestic and international projects.
Alloy Steel Bolts
ASTM F3125 Alloy Bolts

Schedule and Size Chart

Bolt Diameter (in) Thread Length (in) Length (in)
1/2 1 1/2 3-20
5/8 1 3/4 3-20
3/4 2 3-20
7/8 2 1/4 3-20
1 2 1/2 3-20
1 1/8 2 3/4 3-20
1 1/4 3 3-20
1 3/8 3 1/4 3-20
1 1/2 3 1/2 3-20

Mechanical Properties Chart

Property Grade A325 Grade A490 Metric A325M Metric A490M
Tensile Strength (ksi) 120 min 150 min 830 MPa min 1040 MPa min
Yield Strength (ksi) 92 min 130 min 660 MPa min 940 MPa min
Elongation (%) 14 min 14 min 14 min 14 min
Hardness (HBW) 248-352 248-352 248-352 248-352
Reduction of Area (%) 35 min 35 min 35 min 35 min

Specifications Chart

Standard Specification
ASTM F3125
Grades Covered A325, A325M, A490, A490M
Material Alloy Steel
Thread Type UNC (Unified National Coarse) for A325, UNF (Unified National Fine) for A490
Coatings Galvanized, Black Oxide, Zinc Plated
Heat Treatment Required for Grades A490, A490M

Chemical Composition Chart

Element Grade A325 (%) Grade A490 (%)
Carbon (C) 0.20-0.55 0.20-0.40
Manganese (Mn) 0.60-1.35 0.40-0.80
Phosphorus (P) 0.04 max 0.04 max
Sulfur (S) 0.05 max 0.05 max
Silicon (Si) 0.15-0.35 0.15-0.35
Nickel (Ni) 0.25 max (optional) 0.25 max (optional)
Chromium (Cr) 0.30 max (optional) 0.30 max (optional)
Molybdenum (Mo) 0.20 max (optional) 0.20 max (optional)

Physical Properties Chart

Property Value
Density 7.85 g/cm³
Melting Point 1425-1530°C
Thermal Conductivity 50 W/m·K
Modulus of Elasticity 200 GPa
Poisson’s Ratio 0.3
Specific Heat 0.486 J/g·°C

Application Chart

Industry Application
Construction Bridges, structural beams, steel frame buildings
Industrial Plants Oil refineries, chemical plants, power generation
Transportation Heavy-duty equipment, rail infrastructure
Infrastructure Wind energy turbines, highway structures
High-Rise Buildings Skyscraper and high-rise structural components
Heavy Equipment Manufacturing and assembly of industrial machinery

Why Choose ASC LLP for ASTM F3125 Alloy Steel Bolts?

As leading exporters and suppliers of F3125 Alloy Steel Bolts, ASC LLP is committed to delivering premium-quality bolts that meet ASTM standards. Our bolts undergo rigorous quality assurance procedures, ensuring they meet the demands of high-stress applications. Here are some reasons to choose ASC LLP:

  • Certified Quality: Our bolts are manufactured in compliance with ASTM F3125, ensuring they meet the highest standards of quality and durability.
  • Global Reach: With a wide network of distributors and partners, ASC LLP supplies ASTM F3125 Alloy Bolts to industries worldwide, meeting both domestic and international project needs.
  • Custom Solutions: ASC LLP offers customizable options for specific project requirements, allowing clients to select the grade, size, and coating that best suits their application.
  • Expert Support: Our team of industry experts is available to assist with selecting the best bolts for your application, providing guidance on grades, coatings, and customizations.
  • Efficient Delivery: We understand the importance of timely delivery for large projects. Our efficient logistics ensure that your bolts arrive when and where you need them.

Global Reach

Amardeep Steel Centre boasts a robust global presence and is committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM F3125 Alloy Steel Bolts. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Metal globe

Countries We Export To

UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

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