Stainless Steel 310H Fittings

Stainless steel is one of the most versatile and widely used materials in various industries due to its exceptional properties, such as corrosion resistance, high strength, and durability. Among the different grades of stainless steel, 310H stainless steel stands out for its high-temperature resistance and excellent mechanical properties. In this article, we will delve into the details of stainless steel 310H fittings, exploring what they are, their properties, advantages, and their applications in various industries.

What is 310H Stainless Steel Fittings?

310H stainless steel fittings are components used to connect, control, and change the direction of piping systems, specifically designed to withstand high temperatures and corrosive environments. The “310H” designation refers to the specific grade of stainless steel, which is an austenitic stainless steel alloy with a high chromium and nickel content. This composition gives 310H stainless steel exceptional resistance to oxidation and corrosion, even in extreme conditions.

The “H” in 310H indicates that this grade is specifically designed for high-temperature applications, where the material must maintain its mechanical properties over extended periods. This makes 310H stainless steel fittings ideal for industries that operate under high temperatures, such as petrochemical, power generation, and furnace applications.

SS 310H fittings

Properties of 310H Stainless Steel Fittings

310H stainless steel fittings possess a range of properties that make them suitable for demanding environments. Some of the key properties include:

  1. High Temperature Resistance: 310H grade stainless steel fittings can withstand temperatures up to 1100°C (2010°F) without losing their strength or integrity. This makes them ideal for use in furnaces, heat exchangers, and other high-temperature applications.
  2. Oxidation Resistance: The high chromium content in SS 310H fittings provides excellent resistance to oxidation, even in environments with frequent temperature fluctuations. This property ensures that the fittings maintain their appearance and performance over time.
  3. Corrosion Resistance: 310H stainless steel fittings offer good resistance to corrosion in various environments, including those with high levels of sulfur and other corrosive elements. This makes them suitable for use in chemical processing plants, power generation, and other industries where corrosive substances are present.
  4. Strength and Durability: The high nickel and chromium content in SS 310H fittings gives them exceptional strength and durability, making them suitable for heavy-duty applications. These fittings can withstand mechanical stress and pressure without deformation or failure.
  5. Weldability: 310H stainless steel has good weldability, allowing for easy fabrication and installation of fittings. This property is particularly important in industries where custom fittings or complex piping systems are required.
  6. Low Magnetic Permeability: SS 310H fittings have low magnetic permeability, making them suitable for applications where non-magnetic materials are required.

Advantages of 310H Stainless Steel Fittings

The properties of 310H stainless steel fittings offer several advantages for industries that operate in demanding environments. These advantages include:

  1. Extended Service Life: The combination of high temperature and corrosion resistance ensures that SS 310H fittings have a long service life, even in the most challenging conditions. This reduces the need for frequent replacements and maintenance, leading to cost savings over time.
  2. Versatility: 310H stainless steel fittings are versatile and can be used in a wide range of applications, from high-temperature furnaces to chemical processing plants. Their ability to perform well in both oxidizing and reducing environments makes them a preferred choice for many industries.
  3. Cost-Effective: While SS 310H fittings may have a higher initial cost compared to other materials, their durability and resistance to wear and tear make them a cost-effective option in the long run. The reduced need for maintenance and replacement translates to lower operational costs.
  4. Reliable Performance: 310H grade stainless steel fittings offer reliable performance in extreme conditions, ensuring the safety and efficiency of industrial processes. Their ability to maintain their mechanical properties at high temperatures makes them an essential component in critical applications.
  5. Ease of Fabrication: The good weldability and machinability of 310H stainless steel make it easy to fabricate custom fittings and components. This allows for greater flexibility in designing and implementing piping systems.
  6. Compliance with Industry Standards: SS 310H fittings are manufactured to meet stringent industry standards, ensuring that they are suitable for use in regulated industries such as oil and gas, power generation, and chemical processing.
Stainless Steel 310H Fittings
310H SS Fittings

Schedule and Size Chart

Nominal Pipe Size (NPS) Outside Diameter (OD) Schedule 10 Schedule 40 Schedule 80 Schedule 160
1/2″ 0.840″ (21.34 mm) 0.065″ (1.65 mm) 0.109″ (2.77 mm) 0.147″ (3.73 mm) 0.294″ (7.52 mm)
3/4″ 1.050″ (26.67 mm) 0.065″ (1.65 mm) 0.113″ (2.87 mm) 0.154″ (3.91 mm) 0.308″ (7.82 mm)
1″ 1.315″ (33.40 mm) 0.065″ (1.65 mm) 0.133″ (3.38 mm) 0.179″ (4.55 mm) 0.358″ (9.09 mm)
1-1/2″ 1.900″ (48.26 mm) 0.065″ (1.65 mm) 0.145″ (3.68 mm) 0.200″ (5.08 mm) 0.400″ (10.16 mm)
2″ 2.375″ (60.33 mm) 0.065″ (1.65 mm) 0.154″ (3.91 mm) 0.218″ (5.54 mm) 0.436″ (11.07 mm)
4″ 4.500″ (114.30 mm) 0.083″ (2.11 mm) 0.237″ (6.02 mm) 0.337″ (8.56 mm) 0.531″ (13.49 mm)

Mechanical Properties Chart

Property Value
Tensile Strength 515 MPa (74,800 psi)
Yield Strength (0.2% Offset) 205 MPa (29,700 psi)
Elongation 40%
Hardness (Rockwell B) 95
Modulus of Elasticity 193 GPa (28 x 10^6 psi)
Density 7.9 g/cm³ (0.285 lb/in³)

Specifications Chart

Specification Details
ASTM/ASME A403/A403M (for Wrought Austenitic Fittings)
Standard ANSI/ASME B16.9 (Factory-Made Wrought Buttwelding Fittings)
DIN 1.4845
EN 10216-5
UNS S31009

Chemical Composition Chart

Element Composition (%)
Carbon (C) 0.04-0.10
Manganese (Mn) 2.00 max
Phosphorus (P) 0.045 max
Sulfur (S) 0.030 max
Silicon (Si) 1.50 max
Chromium (Cr) 24.00-26.00
Nickel (Ni) 19.00-22.00
Iron (Fe) Balance

Physical Properties Chart

Property Value
Density 7.9 g/cm³ (0.285 lb/in³)
Melting Point 1400-1450°C (2552-2642°F)
Thermal Conductivity 14.2 W/m·K (9.8 BTU·in/ft²·h·°F)
Specific Heat Capacity 500 J/kg·K (0.12 BTU/lb·°F)
Electrical Resistivity 0.74 µΩ·m (29 µΩ·in)
Coefficient of Thermal Expansion 15.9 µm/m·K (8.8 µin/in·°F)

Application Chart

Industry Application
Petrochemical Industry High-temperature piping systems, heat exchangers, reactors
Power Generation Boiler components, superheater tubes, turbine blades
Furnaces & Heat Treatment Furnace muffles, retorts, annealing covers
Chemical Processing Piping systems for corrosive chemicals, acid storage
Aerospace Industry Exhaust systems, combustion chambers, afterburners
Oil and Gas Downhole tubing, wellhead components, offshore platforms
Marine Applications Seawater handling equipment, desalination plants, shipbuilding
Pharmaceutical Industry Sterilization equipment, autoclaves, high-temperature reactors

310H stainless steel fittings are a critical component in various industries that operate under extreme conditions. Their high temperature resistance, corrosion resistance, and durability make them an ideal choice for applications where reliable performance is essential. Whether used in the petrochemical industry, power generation, or aerospace, 310H SS fittings offer the properties and advantages needed to ensure the safety, efficiency, and longevity of industrial systems.

At Amardeep Steel Centre LLP, we are committed to providing high-quality SS 310H fittings that meet the rigorous demands of our customers. Our fittings are manufactured to the highest standards, ensuring that they deliver the performance and reliability you need for your critical applications. Contact us today to learn more about our range of SS 310H fittings and how they can benefit your operations.

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 Fittings. 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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