Shivalik Forge And Fittings

SS 317 Buttweld Fittings

Buttweld Pipe fittings are components used in piping systems to connect, control, redirect, or close the flow of fluids or gasses. They play a crucial role in ensuring the efficient and reliable operation of pipelines in various industries. Pipe fittings come in a variety of shapes, sizes, and materials to accommodate different applications and requirements.

What are Buttweld Fittings?

Buttweld fittings are a type of pipe fitting that is welded to the end of pipes or tubes to create a strong and leak-free connection. They are designed to provide a smooth and continuous flow path, minimizing turbulence and pressure drop in the piping system. Buttweld fittings are commonly used in high-pressure and high-temperature applications where a secure joint is required.

Buttweld fittings offer several advantages:

Strength and Durability: The butt welding technique used in buttweld fittings provides a robust and long-lasting connection. The welded joint has the same strength as the pipes themselves, ensuring the integrity and reliability of the piping system.

Leak Resistance: The seamless welded joint in buttweld fittings eliminates the potential for leaks, making them suitable for applications requiring a tight and leak-proof seal. This is especially important in industries where fluid or gas leakage can lead to safety hazards or loss of product.

Smooth Flow Characteristics: Buttweld fittings create a smooth, uninterrupted flow path within the piping system. The absence of protrusions or internal crevices minimizes pressure drop and turbulence, allowing for efficient fluid or gas transport.

Compatibility: Buttweld fittings are compatible with various pipe materials and can be used with pipes made from metals such as stainless steel, carbon steel, and alloy steel, as well as non-metallic materials like PVC and HDPE.

Applications of Buttweld Fittings

Stainless Steel 317 buttweld fittings find extensive applications in various industries, including:
Stainless Steel 317 Buttweld Fittings copy 2

Specifications of Buttweld Fittings

Specifications ASTM A403/ ASME SA403
Size 1/8 NB to 48 NB (Seamless, 100% X-Ray Welded, Fabricated)
Standards ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Thickness 5s, 10s, 40s, 80s, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS with NACE Mr 01-75
Types Seamless, Welded and Fabricated

Mechanical Specification of Stainless Steel 317 Buttweld Fittings

Stainless Steel 317 is a high-alloy austenitic stainless steel that offers excellent corrosion resistance, high strength, and good formability. The mechanical specifications of Stainless Steel 317 buttweld fittings may vary depending on the specific product and standard, but some general specifications include:


Stainless Steel 317

Tensile Strength

Minimum 515-620 megapascals

Yield Strength

Minimum 205-275 MPa


85 HRB (Rockwell B Hardness) 



These specifications ensure that Stainless Steel 317 buttweld fittings can withstand the demands of various industrial applications, providing durability and reliability in corrosive environments.

How Stainless Steel 317 Benefits the Quality of Buttweld Fittings

Stainless Steel 317 offers several benefits that enhance the quality and performance of buttweld fittings:

Corrosion Resistance: Stainless Steel 317 is highly resistant to corrosion, making it suitable for applications involving aggressive chemicals, acids, and chlorides. This corrosion resistance ensures the longevity and reliability of buttweld fittings, even in harsh environments.

High Strength: Stainless Steel 317 possesses high tensile and yield strength, providing the necessary structural integrity and durability for demanding applications. It can withstand high pressure and temperature conditions without deformation or failure.

Excellent Weldability: Stainless Steel 317 exhibits excellent weldability, allowing for easy and reliable welding of buttweld fittings to pipes or tubes. This ensures a strong and leak-free joint, minimizing the risk of failure or fluid leakage.

Thermal Stability: Stainless Steel 317 has good thermal stability, making it suitable for applications involving elevated temperatures. It retains its mechanical properties and corrosion resistance even at high operating temperatures, ensuring the long-term performance of buttweld fittings.

Types of Stainless Steel 317 Buttweld Fittings

Stainless Steel 317 45 Degree Elbow SS 317 45 Degree Elbow SS 317 SS 90 Degree Elbow SS 317 Stainless Steel 45 Degree Elbow SS UNS S31700 45 Degree Elbow SS S31009 Degree Elbow ASME SA403 WERKSTOFF NR.1.4449 90 Degree Elbow
Stainless Steel 317 Pipe Fittings SS 317 Pipe Fittings 317 SS Buttweld Fitting 317 Stainless Steel Pipe Fitting SS UNS S31700 Buttweld Fitting SS WERKSTOFF NR.1.4449 Pipe Fittings ASTM A 1.4306 / 1.4307 Stainless Steel Buttweld Fitting
Stainless Steel 317 Eccentric Reducer SS  317 Eccentric Reducer 317 SS Eccentric Reducer 317 Stainless Steel Eccentric Reducer SS UNS S31700 Eccentric Reducer ASTM A403 WP WERKSTOFF NR.1.4449 Stainless Steel Eccentric Reducer
Stainless Steel 317 Concentric Reducer SS 317 Concentric Reducer 317 SS Concentric Reducer 317 Stainless Steel Concentric  Reducer SS UNS S31700 Concentric Reducer ANSI B16.9 WP WERKSTOFF NR.1.4449 Stainless Steel Concentric Reducer
Stainless Steel 317 Lateral Tee 317 Lateral Tee 317 SS Lateral Tee 317 Stainless Steel Lateral Tee SS UNS S31700 Lateral Tee SS S31700 Lateral Tee ASME B16.28 WP 304L Stainless Steel Lateral Tee
Stainless Steel 317 Equal Tee SS 317 Equal Tee 317 SS Equal Tee 317 Stainless Steel Equal Tee SS UNS S31700 Lateral Tee 317 SS Lateral Tee 317 Stainless Steel Lateral Tee SS UNS S31009 Lateral Tee SS S31700 Lateral Tee ASME B16.28 WP 304L Stainless Steel Lateral Tee Equal Tee SS WERKSTOFF NR.1.4449 Equal Tee ASTM A403 Stainless Steel Equal Tee
Stainless Steel 317 Long Stub End SS 317 Long Stub End 317 SS Long Stub End 317 Stainless Steel Long Stub End SS UNS S31700 Long Stub End SS S31009 Long Stub End ASTM A403 WP 316/316L Stainless Steel Long Stub End
Stainless Steel 317 Short Stub End SS 317 Short Stub End 317 SS Short Stub End 317 Stainless Steel Short Stub End SS UNS S31700 Short Stub End SS S31009 Short Stub End MSS-SP-43 Stainless Steel Short Stub End
Stainless Steel 317 End Cap SS 317 End Cap 317 SS End Cap 317 Stainless Steel End Cap SS UNS S31700 End Cap WERKSTOFF NR.1.4449 End Cap ASTM A403 316/316L Stainless Steel End Cap
Stainless Steel 317 Bend SS 317 Bend 317 SS Bend SS 5d Pipe Bend 317 Stainless Steel Bend SS UNS S31700 Bend WERKSTOFF NR.1.4449 Bend ASTM A403 Stainless Steel Bend
Stainless Steel 317 Equal Cross SS 317 Equal Cross 317 SS Equal Cross 317 Stainless Steel Equal Cross SS UNS S31700 Equal Cross WERKSTOFF NR.1.4449 Equal Cross ANSI B16.9 WP WERKSTOFF NR.1.4449 Stainless Steel Equal Cross

SS 317 Pipe Fittings Chemical Composition

Grade C Ni Mn P S Cr Si Mo Fe
317 0.08 max 11.00 – 15.00 2 max 0.045 max 0.030 max 18.00 – 20.00 1 max 3.00 – 4.00 57.845 min

Stainless Steel 317 Butt weld Fittings Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.9 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Equivalent Grades for 317 Stainless Steel Pipe Fitting

317 1.4449 S31700 SUS 317                        

Types of Buttweld Fittings

shivalik offers a comprehensive range of Stainless Steel 317 buttweld fittings, including:

Buttweld Elbows: Elbows are used to change the direction of the pipeline. They are available in different angles, such as 45 degrees, 90 degrees, and 180 degrees, to accommodate specific piping configurations.

Buttweld Tees: Tees are used to create a branch connection in a pipeline. They have an inlet and two outlets, allowing for the diversion of fluid or gas flow.

Buttweld Reducers: Reducers are used to connect pipes of different diameters. They ensure a smooth transition between different pipe sizes while maintaining the flow characteristics of the system.

Buttweld Caps: Caps are used to close the ends of pipes, providing protection and preventing the entry of foreign materials. They are often used in applications where pipe ends need to be sealed temporarily or permanently.

Buttweld Stub Ends: Stub ends are used in conjunction with lap joint flanges to create a disassemblable connection. They allow for easy alignment and adjustment of the flange joint.

Why shivalik is the Best Manufacturer and Supplier of Buttweld Fittings

shivalik stands as a leading manufacturer and supplier of Stainless Steel 317 buttweld fittings, offering exceptional quality and reliability. Here’s why they are the preferred choice:

Extensive Product Range: shivalik provides a wide range of Stainless Steel 317 buttweld fittings, catering to diverse industrial requirements. Their product portfolio includes elbows, tees, reducers, caps, stub ends, and more.

Superior Quality: The buttweld fittings manufactured by shivalik are crafted with precision and adhere to international quality standards. They undergo rigorous quality checks to ensure impeccable performance and durability.

Customization Options: shivalik understands that each application may have specific requirements. They offer customization options for dimensions, materials, and finishes, ensuring the perfect fit for any project.

Timely Delivery: shivalik values customer satisfaction and ensures prompt delivery of orders. They have efficient logistics systems in place to ensure that products reach customers on time, minimizing project delays.

Technical Expertise: With their extensive knowledge and technical expertise in the field of buttweld fittings, shivalik provides excellent support and guidance to customers, helping them make informed decisions.

Choose shivalik as your trusted manufacturer and supplier of Stainless Steel 317 buttweld fittings, and experience the highest quality products, technical expertise, and reliable service for your piping system requirements.

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