When it comes to high-temperature and corrosion-resistant piping systems, Stainless Steel 309H Buttweld Fittings stand out as one of the most durable and reliable options available. These fittings are widely used in industries such as chemical processing, power generation, petroleum refining, and heat treatment equipment, where strength and stability under extreme conditions are essential.
As a leading Stainless Steel 309H Pipe Fittings Manufacturer in India, we offer a complete range of buttweld fittings in various sizes, types, and pressure ratings. Each fitting is engineered for superior performance, precision, and long-term reliability — ensuring leak-proof connections in critical industrial applications.
What are Stainless Steel 304H Buttweld Fittings?
Stainless Steel 309H Buttweld Fittings are made from an austenitic stainless steel grade containing higher chromium (23%) and nickel (13%) content. The "H" in 309H indicates a high carbon content, which enhances strength and creep resistance at elevated temperatures. This makes these fittings ideal for high-temperature service environments.
These fittings are designed for joining pipes through welding, which ensures smooth fluid flow and reduces the risk of leaks compared to threaded or socket-weld connections. They are commonly used to change pipe direction, adjust pipe diameter, or close the ends of pipelines.
Standards and Specifications
Our SS 309H Industrial Fittings Manufacturer in Mumbai, India products comply with the following international standards:
- Standards: ASME B16.9, B16.11, MSS SP-43, SP-75
- Specifications: ASTM A403 / ASME SA403
- Grades: WP309H, WP309H-S, WP309H-W
- Size Range: ½” to 48” (Seamless and Welded)
- Schedule: SCH 10s to SCH 160s
- Type: Seamless, Welded, and Fabricated
Types of Stainless Steel 309H Buttweld Fittings
We manufacture and supply a complete range of Stainless Steel 309H Buttweld Pipe Fittings to suit various piping requirements. Some of the popular types include:
➤ Elbows (90°, 45°, Long Radius, Short Radius)
Used to change the direction of flow in pipelines. Our SS 309H Reducing Elbow is known for its smooth inner surface that reduces turbulence and pressure loss.
➤ Tees (Equal and Reducing)
309H SS Forged Tee Stockist items are designed to combine or split fluid flow efficiently. Equal tees maintain uniform flow, while reducing tees connect pipes of different diameters.
➤ Reducers (Concentric and Eccentric)
ASTM A403 309H Butt weld Concentric Reducer and ASME SA403 Stainless Steel 309H Butt weld Concentric Reducer help in connecting pipes of varying diameters, ensuring a seamless transition in flow.
➤ Stub Ends
Our 309H Stainless Steel Short Stub End is used in flanged connections where frequent dismantling of the pipeline is required.
➤ Caps
Pipe caps are used to close the end of a pipeline to stop flow or protect the pipe ends during maintenance.
➤ Cross Fittings
Four-way fittings used to connect four pipes at a single joint for distribution or collection of fluids.
Key Features and Advantages of SS 309h Pipe Fittings
Here are some of the major features that make ASTM A403 309H Buttweld Fittings the preferred choice for industrial piping systems:
- High Temperature Strength: The high carbon content provides excellent strength and stability even in temperatures up to 1000°C.
- Superior Oxidation Resistance: UNS S30900 Pipe Fittings offer exceptional resistance to oxidation and scaling in continuous service.
- Excellent Weldability: These fittings can be easily welded using common fusion and resistance methods without preheating.
- Corrosion Resistance: Stainless Steel 309H Seamless Pipe Fittings perform exceptionally well in both oxidizing and carburizing atmospheres.
- Durability: The strong composition ensures long-lasting performance and low maintenance requirements, even under mechanical stress.
- Versatility: Suitable for a wide range of industrial applications including boilers, heat exchangers, and furnaces.
Applications of Stainless Steel 309H Buttweld Fittings
Due to their strength, temperature tolerance, and corrosion resistance, Stainless Steel 309H Fittings are widely used in:
- Petrochemical Plants
- Power Generation Units
- Heat Exchangers and Boilers
- Oil & Gas Pipelines
- Furnaces and Kilns
- Marine and Offshore Equipment
- Chemical Processing Industries
Mechanical Properties of SS 309H Fittings
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa (min) |
| Yield Strength | 205 MPa (min) |
| Elongation | 40% (min) |
| Hardness (Brinell) | 217 (max) |
Chemical Composition of Stainless Steel 309H UNS S30903 Fittings
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.04 – 0.10 |
| Chromium (Cr) | 22.0 – 24.0 |
| Nickel (Ni) | 12.0 – 15.0 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Stainless Steel 309H Socket Weld Pipe Fittings
Apart from buttweld fittings, we also supply Stainless Steel 309H Socket Weld Pipe Fittings designed for high-pressure piping systems. These fittings are commonly used in smaller pipe diameters and are ideal for applications that require a permanent, leak-proof joint.
They include socket weld elbows, tees, couplings, and caps — all manufactured according to ASME B16.11 standards to ensure dimensional accuracy and high performance.
Experience, Expertise, and Trust
With years of hands-on experience in the metal and alloy industry, we understand the challenges faced by engineers and project managers. Our manufacturing team ensures that each UNS S30903 Fitting we produce meets or exceeds performance expectations in the toughest environments.
Our continuous investment in technology and innovation helps us maintain leadership as a reliable Stainless Steel 309H Pipe Fittings Dealer in India.
Why Choose Us for Stainless Steel 309H Pipe Fittings?
As a trusted 309H Fittings Supplier in Mumbai, India, we have earned a reputation for delivering premium-quality products backed by technical expertise and customer support. Here’s why clients prefer us:
- Extensive Stock Availability: Ready stock of all standard sizes and types.
- Customization Options: We provide tailor-made fittings to suit unique project needs.
- Competitive Prices: Best Price of 309H SS Pipe Cap Exporter in India.
- Timely Delivery: We ensure on-time dispatch through reliable logistics partners.
- Global Reach: Exporting SS 309H Pipe Fittings in India and across major industrial markets worldwide.
- Commitment to Quality: Every fitting is produced using advanced manufacturing techniques under strict quality norms.
Let’s Find Your Fitting Solution
If you’re looking for durable, corrosion-resistant, and high-performance pipe fittings for your industrial needs, Stainless Steel 309H Buttweld Fittings are a perfect choice. With exceptional mechanical strength and temperature resistance, they offer long-term reliability in demanding applications.
We supply a full range of Stainless Steel 309H Seamless Pipe Fittings, ASTM A403 309H Butt weld Concentric Reducers, SS 309H Reducing Elbows, 309H Stainless Steel Short Stub Ends, and more — all manufactured to international standards and delivered at competitive prices.
Request Your Stainless Steel 309H Buttweld Fittings Quote Today!
