ASTM A403 WP304 Stainless Steel Fittings

At Amardeep Steel Centre LLP, we pride ourselves on offering high-quality materials that meet the rigorous demands of various industries. Among our most sought-after products are the ASTM A403 WP304 Stainless Steel Fittings, known for their exceptional durability, resistance to corrosion, and versatile applications. This guide delves into the specifics of these fittings, highlighting their properties, advantages, and why they are the preferred choice for many industries.

What is ASTM A403 WP304 Stainless Steel Fittings?

ASTM A403 WP304 Stainless Steel Fittings are forged or seamless fittings made from WP304-grade stainless steel. The WP304 designation refers to a specific type of stainless steel, often referred to as 304 stainless steel, which is one of the most widely used grades in the stainless steel family. The ASTM A403 standard covers wrought austenitic stainless steel fittings used for pressure piping and are generally applied in high-temperature environments.

These fittings are available in various forms, including elbows, tees, reducers, caps, and stub ends. They are designed to connect pipes and allow for the change of direction, branching, or pipe diameter in piping systems.

WP304 Stainless Steel Fittings

Key Properties of ASTM A403 WP304 Stainless Steel Fittings

Understanding the properties of ASTM A403 WP304 stainless steel fittings is crucial for selecting the right component for your piping system. Here are some of the key properties:

  1. Corrosion Resistance: One of the most notable properties of WP304 stainless steel fittings is their exceptional resistance to corrosion. The 304 grade stainless steel contains 18% chromium and 8% nickel, which contributes to its ability to withstand rust and oxidation even in harsh environments. This makes these fittings suitable for use in both indoor and outdoor applications, as well as in industries where exposure to corrosive substances is a concern.
  2. Strength and Durability: ASTM A403 WP304 stainless steel fittings are known for their high strength and durability. They are capable of withstanding high pressures and temperatures, making them suitable for use in demanding industrial applications. The inherent toughness of 304 stainless steel ensures that these fittings maintain their integrity over time, even under heavy use.
  3. Versatility: These fittings are highly versatile and can be used in a wide range of applications. They are compatible with different types of pipes, including those made from stainless steel, carbon steel, and other materials. This versatility makes WP304 stainless steel fittings a popular choice across various industries.
  4. Heat Resistance: WP304 grade stainless steel fittings exhibit excellent heat resistance, allowing them to maintain their properties even at elevated temperatures. This makes them suitable for use in applications where high temperatures are a factor, such as in chemical processing plants and power generation facilities.
  5. Formability and Weldability: Another key property of WP304 stainless steel fittings is their ease of fabrication. The material is highly formable and can be easily welded, which simplifies the manufacturing process and allows for the creation of complex fitting designs.

Advantages of ASTM A403 WP304 Stainless Steel Fittings

The use of ASTM A403 WP304 stainless steel fittings offers several advantages, making them a preferred choice for many applications:

  1. Longevity: Due to their corrosion resistance and durability, WP304 stainless steel fittings have a long service life. This reduces the need for frequent replacements, leading to lower maintenance costs and improved system reliability.
  2. Hygiene: WP304 stainless steel fittings are commonly used in food processing, pharmaceutical, and healthcare industries because they meet stringent hygiene standards. The smooth surface of the fittings resists bacterial growth and is easy to clean, ensuring that sanitary conditions are maintained.
  3. Cost-Effectiveness: Although stainless steel fittings may have a higher initial cost compared to other materials, their long-term benefits often outweigh the upfront investment. The longevity, reduced maintenance, and reliability of WP304 stainless steel fittings contribute to their overall cost-effectiveness.
  4. Aesthetic Appeal: Stainless steel fittings have a polished, sleek appearance, making them an attractive option for visible installations. Their resistance to tarnishing and discoloration ensures that they maintain their aesthetic appeal over time.
  5. Environmental Friendliness: WP304 stainless steel is a recyclable material, which means that fittings made from this grade of stainless steel can be recycled at the end of their life cycle. This contributes to sustainability and reduces the environmental impact of using these fittings.
ASTM A403 WP304 Stainless Steel Fittings
WP304 Stainless Steel Fittings

Schedule and Size Chart

Nominal Pipe Size (NPS) Schedule Outside Diameter (OD) (inches) Wall Thickness (inches) Inside Diameter (ID) (inches)
1/8″ 10, 40, 80 0.405 0.068 (Sch 40) 0.269 (Sch 40)
1/4″ 10, 40, 80 0.540 0.088 (Sch 40) 0.364 (Sch 40)
1/2″ 10, 40, 80 0.840 0.109 (Sch 40) 0.622 (Sch 40)
1″ 10, 40, 80 1.315 0.133 (Sch 40) 1.049 (Sch 40)
2″ 10, 40, 80 2.375 0.154 (Sch 40) 2.067 (Sch 40)
4″ 10, 40, 80 4.500 0.237 (Sch 40) 4.026 (Sch 40)
6″ 10, 40, 80 6.625 0.280 (Sch 40) 6.065 (Sch 40)
8″ 10, 40, 80 8.625 0.322 (Sch 40) 7.981 (Sch 40)
10″ 10, 40, 80 10.750 0.365 (Sch 40) 10.020 (Sch 40)
12″ 10, 40, 80 12.750 0.406 (Sch 40) 12.090 (Sch 40)

Mechanical Properties Chart

Property Value
Tensile Strength 515 MPa (75 ksi)
Yield Strength 205 MPa (30 ksi)
Elongation 35% (in 50 mm)
Hardness (Brinell) 201 HBW
Hardness (Rockwell B) 92 HRB
Modulus of Elasticity 193 GPa (28 x 10^6 psi)

Specifications Chart

Specification Standard
Manufacturing Standard ASTM A403
Material Grade WP304 (304 Stainless Steel)
Fitting Types Elbows, Tees, Reducers, Caps, Crosses
Manufacturing Process Wrought
Pipe Fitting Sizes 1/8” to 48”
Schedules Available SCH 10, SCH 40, SCH 80

Chemical Composition Chart

Element Composition (%)
Carbon (C) 0.35 – 0.50
Manganese (Mn) 0.60 – 0.90
Phosphorus (P) ≤ 0.04
Sulfur (S) ≤ 0.05
Silicon (Si) 0.10 – 0.35
Iron (Fe) Balance

Physical Properties Chart

Property Value
Density 8.00 g/cm³ (0.289 lb/in³)
Melting Point 1400°C – 1450°C (2552°F – 2642°F)
Thermal Conductivity 16.2 W/m·K (112 BTU·in/hr·ft²·°F)
Specific Heat 0.50 kJ/kg·K (0.12 BTU/lb·°F)
Electrical Resistivity 0.072 x 10^-6 Ω·m
Magnetic Permeability ≤1.02 (H = 200 Oe)
Coefficient of Expansion 17.2 x 10^-6 /°C (32°F – 1000°F)

Application Chart

Industry Application
Chemical Processing Piping systems for transferring corrosive chemicals
Oil & Gas Pipelines for transporting oil, gas, and related products
Food & Beverage Sanitary pipelines for food and beverage processing
Pharmaceutical Hygienic piping systems for drug manufacturing
Water Treatment Pipelines for water purification and distribution
Power Generation High-temperature and high-pressure piping systems
Construction Structural components in buildings and infrastructure
Marine Corrosion-resistant fittings for shipbuilding and repair

Selecting the Right ASTM A403 WP304 Stainless Steel Fittings

When selecting ASTM A403 WP304 stainless steel fittings for your application, it is important to consider several factors:

  1. Application Requirements: Determine the specific requirements of your application, such as pressure, temperature, and chemical exposure. This will help you select fittings that meet the necessary specifications.
  2. Fitting Type: Choose the appropriate fitting type based on the piping configuration. Common types include elbows, tees, reducers, and caps.
  3. Size and Compatibility: Ensure that the fittings you select are compatible with the size and type of piping used in your system. Proper sizing is essential to ensure a secure and leak-free connection.
  4. Certifications and Standards: Verify that the fittings meet the required certifications and standards, such as ASTM A403, to ensure that they are suitable for your application.

ASTM A403 WP304 Stainless Steel Fittings offer a combination of strength, durability, and corrosion resistance that makes them suitable for a wide range of applications. Whether you are in the chemical processing industry, oil and gas sector, or any other field that requires reliable and long-lasting piping systems, WP304 stainless steel fittings provide an excellent solution. By understanding their properties, advantages, and applications, you can make informed decisions when selecting the right fittings for your needs.

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 ASTM A403 WP304 Stainless Steel 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.

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Countries We Export To

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