ASTM A194 Alloy Steel Nuts: The Ultimate Guide for Industrial Applications
At ASC LLP, we pride ourselves on providing high-quality fasteners that meet stringent industry standards. One such essential product in our range is the ASTM A194 Alloy Steel Nuts. These nuts are widely used in various industrial applications, especially where high-pressure and high-temperature resistance are critical. In this article, we will dive deep into what ASTM A194 Alloy Steel Nuts are, their properties, and advantages, and why they are indispensable for numerous industries.
What is ASTM A194 Alloy Steel Nuts?
ASTM A194 Alloy Steel Nuts are fasteners manufactured from alloy steel and designed to meet the requirements of the ASTM A194 standard. This specification covers nuts made of carbon, alloy, and stainless steel, intended for high-pressure and high-temperature services. The standard is primarily used for fasteners that connect pipelines, pressure vessels, valves, and fittings in industries like oil and gas, chemical processing, and power generation.
The A194 Alloy Steel Nuts are manufactured using high-grade alloy steel, which provides superior strength, toughness, and corrosion resistance compared to standard carbon steel nuts. They are designed to handle the harshest conditions, including extreme temperatures and heavy loads.
ASTM A194 Alloy Steel Nuts Properties
The ASTM A194 Alloy Steel Nuts possess unique mechanical and chemical properties that make them an ideal choice for demanding applications. Below are some key properties of these nuts:
- High Tensile Strength: These nuts exhibit high tensile strength, allowing them to endure heavy loads and high pressure without deformation. This property makes them ideal for industrial machinery and high-stress environments.
- Corrosion Resistance: Alloy steel used in ASTM A194 nuts offers excellent corrosion resistance, especially in environments where exposure to chemicals, water, and corrosive substances is frequent. This increases the durability and lifespan of the nuts.
- Temperature Resistance: One of the primary features of Alloy Steel Nuts ASTM A194 is their ability to withstand high temperatures, making them perfect for use in applications like boilers, furnaces, and power plants where heat is an issue.
- Chemical Composition: The composition of A194 Alloy Steel Nuts typically includes elements like manganese, carbon, sulfur, phosphorus, and sometimes molybdenum. The precise combination of these elements ensures the nuts are highly durable and resistant to wear and tear in aggressive conditions.
- Dimensional Accuracy: These nuts are manufactured with precision to ensure exact dimensions and a perfect fit, which is critical for secure fastening in high-pressure applications.
Advantages of ASTM A194 Alloy Steel Nuts
ASTM A194 Alloy Steel Nuts offer a host of advantages that make them stand out in demanding industrial environments. Here are some of the top benefits:
- Superior Strength and Durability: The alloy steel used in A194 Alloy Steel Nuts provides superior mechanical strength, ensuring a longer lifespan even under extreme stress and pressure. They are ideal for applications where standard steel fasteners would fail.
- High Resistance to Environmental Stress: Due to their exceptional resistance to corrosion, oxidation, and wear, ASTM A194 Alloy Nuts can be used in harsh environments, including chemical plants, offshore oil rigs, and power generation facilities. They maintain their integrity even when exposed to water, chemicals, or salt water.
- Adaptability to Extreme Temperatures: These nuts can withstand both very high and very low temperatures, making them suitable for extreme applications like cryogenic processing or high-heat furnaces. Their ability to maintain mechanical integrity in such conditions makes them highly valuable in industries such as petrochemicals, refinery, and nuclear power.
- Cost Efficiency: While ASTM A194 Alloy Nuts may have a higher initial cost compared to carbon steel fasteners, their long-term durability and resistance to environmental factors lead to lower maintenance costs and fewer replacements, resulting in cost savings in the long run.
- Versatility in Applications: From connecting pipelines in the oil and gas sector to securing pressure vessels in power plants, ASTM A194 Alloy Steel Nuts are highly versatile and can be used across various industries. Their ability to handle high-pressure applications and extreme environments makes them indispensable in many sectors.
Schedule and Size Chart
| Nut Size (Diameter) | Thread Size (TPI) | Height (mm) | Width Across Flats (mm) | Width Across Corners (mm) |
| 1/4″ | 20 | 7 | 11 | 12.7 |
| 3/8″ | 16 | 8 | 16 | 18.5 |
| 1/2″ | 13 | 10 | 19 | 21.3 |
| 5/8″ | 11 | 11 | 24 | 26.5 |
| 3/4″ | 10 | 13 | 30 | 33.3 |
| 1″ | 8 | 17 | 36 | 41.0 |
| 1-1/4″ | 7 | 23 | 50 | 53.6 |
| 1-1/2″ | 6 | 26 | 60 | 66.5 |
| 2″ | 4.5 | 30 | 75 | 81.5 |
Mechanical Properties Chart
| Grade | Tensile Strength (MPa) | Proof Load Stress (MPa) | Hardness (Brinell) | Hardness (Rockwell) |
| 2H | 850 | 700 | 248-352 | C24-C35 |
| 2HM | 660 | 500 | 159-235 | B85-C22 |
| 4 | 1040 | 860 | 271-352 | C28-C35 |
| 7 | 860 | 725 | 248-331 | C24-C35 |
| 7M | 725 | 620 | 217-291 | C18-C31 |
| 8 | 515 | 205 | 131-223 | B71-C24 |
Specifications Chart
| Specification | Details |
| Standard | ASTM A194 |
| Material | Alloy Steel |
| Grades Available | 2H, 2HM, 4, 7, 7M, 8, 8M |
| Finish | Plain, Black Oxide, Zinc Plated, Galvanized |
| Thread Type | UNC, UNF, Metric |
| Applications | High-pressure, high-temperature services |
| Dimensions | ANSI/ASME B18.2.2 |
| Available Sizes | 1/4″ to 4″ diameter |
| Packaging | Standard packaging or as per client needs |
Chemical Composition Chart
| Element | Grade 2H (%) | Grade 4 (%) | Grade 7 (%) | Grade 8 (%) |
| Carbon | 0.40 max | 0.25 max | 0.45 max | 0.08 max |
| Manganese | 1.00 min | 0.60-0.90 | 0.60-0.90 | 2.00 max |
| Phosphorus | 0.04 max | 0.045 max | 0.035 max | 0.045 max |
| Sulfur | 0.05 max | 0.05 max | 0.045 max | 0.03 max |
| Silicon | 0.15-0.35 | 0.15-0.35 | 0.20-0.50 | 1.00 max |
| Chromium | — | 0.90-1.20 | 0.90-1.20 | 18.0-20.0 |
| Molybdenum | — | — | 0.15-0.25 | — |
| Nickel | — | — | 8.0-10.0 | 8.0-11.0 |
Physical Properties Chart
| Property | Value |
| Density | 7.85 g/cm³ (alloy steel) |
| Melting Point | 1425-1540°C (depending on alloy) |
| Thermal Conductivity | 30-50 W/m·K |
| Modulus of Elasticity | 190-210 GPa |
| Electrical Resistivity | 0.6-1.2 μΩ·m (depending on composition) |
| Magnetic Properties | Ferromagnetic (subject to composition) |
Application Chart
| Industry | Application |
| Oil & Gas | Fastening pipelines, valves, and flanges in high-pressure environments |
| Chemical Processing | Securing equipment exposed to corrosive chemicals and high temperatures |
| Power Generation | Used in turbines, boilers, and pressure vessels for high-temperature resistance |
| Marine | Corrosion-resistant fasteners for offshore platforms and shipbuilding |
| Petrochemical | Securing refinery equipment exposed to high pressure and temperatures |
| Construction | Structural fastening in bridges, towers, and heavy machinery |
| Aerospace | Fasteners for aircraft engines and high-stress components |
Choosing the Right Supplier for ASTM A194 Alloy Steel Nuts
When it comes to selecting the right supplier for ASTM A194 Alloy Steel Nuts, it is essential to partner with a reputable company that understands the importance of quality, durability, and performance. ASC LLP is a trusted name in the industry, providing high-quality ASTM A194 Alloy Steel Nuts that meet global standards.
Here’s why ASC LLP stands out as a leading exporter and supplier of A194 Alloy Steel Nuts:
- Certified Products: We offer certified ASTM A194 Alloy Steel Nuts, ensuring that every batch meets or exceeds the ASTM A194 specification.
- Wide Range of Sizes and Grades: ASC LLP provides a diverse range of sizes and grades to meet your specific application needs, whether you’re looking for large nuts for heavy-duty machinery or smaller sizes for more delicate applications.
- Global Shipping: We are A194 Nuts exporters, supplying our products to various regions across the globe. Whether you’re located in North America, Europe, Asia, or the Middle East, we can deliver high-quality fasteners promptly.
- Competitive Pricing: We offer competitive prices without compromising on quality. Our pricing structure is designed to give you the best value for your investment.
- Expert Support: At ASC LLP, we pride ourselves on excellent customer service. Our team of experts is always available to offer guidance and advice on choosing the right ASTM A194 Alloy Nuts for your specific application.
In conclusion, Alloy Steel Nuts are an essential component in many industrial applications, offering high strength, durability, and resistance to extreme temperatures and corrosive environments. Their versatility makes them ideal for sectors such as oil and gas, chemical processing, power generation, and marine applications.
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 A194 Alloy Steel Nuts. 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.
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.
