Stainless Steel 310H Fasteners: Properties, Advantages, and Applications
Stainless steel fasteners are an integral part of many industries, offering high strength, corrosion resistance, and durability. Among the various grades of stainless steel fasteners, 310H stainless steel fasteners stand out for their high-temperature resistance and excellent mechanical properties, making them suitable for a wide range of applications. In this comprehensive guide, we will delve into what 310H stainless steel fasteners are, their properties, and advantages, and why they are favored in demanding industrial environments.
What is 310H Stainless Steel Fasteners?
310H stainless steel fasteners are made from 310H stainless steel, a high-carbon version of 310 stainless steel. The “H” in 310H signifies the higher carbon content, which improves the material’s strength at elevated temperatures. This makes 310H-grade stainless steel fasteners ideal for use in high-temperature environments where both corrosion resistance and heat resistance are essential.
310H stainless steel fasteners are commonly used in industries such as petrochemical, power generation, and furnace manufacturing, where they are exposed to extreme heat and corrosive conditions. These fasteners are available in various forms, including bolts, nuts, washers, and screws, providing versatility for different applications.
Properties of 310H Stainless Steel Fasteners
The exceptional performance of 310H SS fasteners can be attributed to their unique properties. Some of the key 310H stainless steel fasteners properties include:
- High-Temperature Resistance: One of the most prominent properties of 310H SS fasteners is their ability to withstand extreme temperatures. These fasteners maintain their strength and structural integrity even when exposed to temperatures up to 1100°C (2010°F). This makes them ideal for use in furnaces, heat treatment equipment, and other high-temperature applications.
- Corrosion Resistance: While 310H stainless steel is primarily known for its high-temperature capabilities, it also offers excellent resistance to oxidation and corrosion, particularly in environments with moderate exposure to corrosive elements. This corrosion resistance is crucial for applications where the fasteners are exposed to both high temperatures and corrosive substances, such as in the petrochemical and power generation industries.
- Excellent Mechanical Strength: The higher carbon content in 310H SS fasteners contributes to their improved mechanical strength, especially at elevated temperatures. These fasteners can endure significant mechanical stress without losing their form or breaking down, making them ideal for critical applications that require durability and strength.
- Weldability: Despite the high carbon content, 310H SS fasteners can be welded, making them easy to integrate into various systems and structures. Proper welding techniques and post-weld treatments are recommended to ensure that the fasteners retain their high-temperature performance and strength.
- Long-Lasting Durability: The combination of high-temperature resistance, corrosion resistance, and mechanical strength ensures that 310H stainless steel fasteners are highly durable. These fasteners offer long service life even in harsh environments, reducing the need for frequent replacements and maintenance.
Advantages of 310H Stainless Steel Fasteners
Choosing 310H stainless steel fasteners offers a range of benefits that make them the preferred choice in many industrial applications. Some of the key 310H stainless steel fasteners advantages include:
- High-Temperature Performance: As mentioned earlier, 310H SS fasteners excel in high-temperature environments. Their ability to maintain strength and resist scaling even at temperatures exceeding 1000°C ensures reliable performance in furnaces, boilers, and heat exchangers.
- Enhanced Strength at Elevated Temperatures: The increased carbon content in 310H SS fasteners enhances their creep resistance and tensile strength when exposed to high temperatures. This makes them ideal for applications where mechanical stress and high heat coexist.
- Resistance to Oxidation and Corrosion: The excellent corrosion resistance of 310H SS fasteners extends their usability in environments exposed to oxidizing agents and corrosive chemicals. They resist rust and degradation, ensuring that structures remain secure over time.
- Versatile Applications: 310H SS fasteners are versatile and can be used across a wide range of industries, including chemical processing, petrochemicals, power plants, and heat treatment facilities. Their ability to handle both high temperatures and corrosive environments makes them a go-to solution for complex industrial challenges.
- Cost-Effective: While 310H stainless steel fasteners may come at a higher initial cost compared to other grades, their durability, long service life, and reduced need for maintenance or replacement make them a cost-effective choice in the long run. Their reliability minimizes downtime in critical applications, improving overall operational efficiency.
- Ease of Fabrication: Despite their strength and high-temperature capabilities, 310H SS fasteners can be fabricated and machined with relative ease. This enables custom manufacturing for specific applications, ensuring that the fasteners meet precise requirements.
Schedule and Size Chart
| Type | Diameter (mm) | Length (mm) | Thread Size | Standard |
| Bolts | 6 to 100 | 10 to 500 | M6 to M100 | DIN, ASTM, BS |
| Nuts | 6 to 100 | – | M6 to M100 | DIN, ASTM, BS |
| Washers | 6 to 100 | – | M6 to M100 | DIN, ASTM, BS |
| Screws | 3 to 36 | 6 to 300 | M3 to M36 | DIN, ASTM, BS |
| Stud Bolts | 6 to 100 | 10 to 500 | M6 to M100 | DIN, ASTM, BS |
Mechanical Properties Chart
| Property | Value | Unit |
| Tensile Strength | 515 MPa (Min) | MPa |
| Yield Strength | 205 MPa (Min) | MPa |
| Elongation | 40% (Min) | % |
| Hardness (Brinell) | 217 HB (Max) | HB |
| Modulus of Elasticity | 200 GPa | GPa |
| Proof Stress (0.2%) | 205 MPa | MPa |
Specifications Chart
| Specification | Standard |
| ASTM | ASTM A193 / A194 (Bolts & Nuts) |
| ASME | ASME SA193 / SA194 |
| DIN | DIN 933, DIN 934, DIN 125 (Bolts, Nuts, Washers) |
| BS | BS 3692, BS 6104 |
| ISO | ISO 3506-1, ISO 4032 |
Chemical Composition Chart
| Element | Percentage (%) |
| Carbon (C) | 0.04-0.10 |
| Chromium (Cr) | 24.00-26.00 |
| Nickel (Ni) | 19.00-22.00 |
| Manganese (Mn) | 2.00 (Max) |
| Silicon (Si) | 1.50 (Max) |
| Phosphorus (P) | 0.045 (Max) |
| Sulfur (S) | 0.030 (Max) |
| Iron (Fe) | Balance |
Physical Properties Chart
| Property | Value |
| Density | 7.9 g/cm³ |
| Melting Point | 1400°C – 1450°C |
| Thermal Conductivity | 14.2 W/m·K (at 100°C) |
| Specific Heat | 500 J/kg·K (at 20°C) |
| Electrical Resistivity | 0.74 μΩ·m (at 20°C) |
| Coefficient of Expansion | 15.9 µm/m·K (0-100°C) |
Applications Chart
| Industry | Application |
| Petrochemical | Heat exchangers, furnace parts, piping systems |
| Power Generation | Boilers, turbines, heat recovery systems |
| Chemical Processing | Reactors, pressure vessels, piping exposed to corrosive chemicals |
| Furnace Manufacturing | Furnace doors, burner assemblies, heat-resistant components |
| Automotive & Aerospace | Exhaust systems, high-temperature engine parts |
| Oil and Gas | High-temperature pipelines, offshore platforms |
| Construction | Structural fasteners in high-temperature environments |
310H stainless steel fasteners offer a unique combination of high-temperature resistance, mechanical strength, and corrosion resistance, making them a vital component in many industrial applications. Their ability to withstand extreme conditions while maintaining their structural integrity ensures reliable performance and long service life. Whether used in furnaces, petrochemical plants, or power generation facilities, 310H stainless steel fasteners provide a cost-effective and durable solution for critical applications.
At ASC LLP, we offer a wide range of 310H SS fasteners that meet the highest industry standards. Our fasteners are available in various sizes and types, including bolts, nuts, screws, and washers, ensuring that we have the right solution for your specific needs. For more information about our stainless steel 310H fasteners, contact us today!
Global Reach
Amardeep Steel Centre boasts a robust global presence, 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 Stainless Steel 310H Fasteners. 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.
