Shivalik Forge And Fittings

SS 446 Buttweld Fittings

Pipe fittings are essential components used in plumbing and piping systems to connect, control, or redirect the flow of liquids or gasses. They provide a secure and leak-free connection between pipes and ensure the efficient and reliable operation of various industrial processes. Pipe fittings come in different shapes, sizes, and materials to accommodate specific requirements and applications.

What are Buttweld Fittings?

Buttweld fittings are a type of pipe fitting that is welded to the ends of pipes or tubes to create a strong and permanent connection. They are designed to provide a smooth and uninterrupted flow path, minimizing turbulence and pressure drop in the piping system. Buttweld fittings offer excellent structural integrity and are commonly used in high-pressure and high-temperature applications.

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 446 buttweld fittings find extensive applications in various industries, including:
Stainless Steel 446 Buttweld Fittings4

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 446 Buttweld Fittings

Stainless Steel 446 is a ferritic, heat-resistant stainless steel with excellent oxidation resistance at high temperatures. The mechanical specifications of Stainless Steel 446 buttweld fittings may vary depending on the specific product and standard, but some general specifications include:


Stainless Steel 304, 1.307, UNS S30400

Tensile Strength

Minimum 515 megapascals

Yield Strength

Minimum 205 MPa


70-90 HRB (Rockwell B Hardness) or 150-180 HV (Vickers Hardness)



These specifications ensure that Stainless Steel 446 buttweld fittings possess the necessary strength, durability, and resistance to elevated temperatures to meet the demanding requirements of various industries.

How Stainless Steel 446 Benefits the Quality of Buttweld Fittings

Stainless Steel 446 offers several advantages that enhance the quality and performance of buttweld fittings:

Heat Resistance: Stainless Steel 446 is specifically designed for high-temperature applications. It exhibits excellent oxidation resistance at elevated temperatures, making it suitable for use in environments where other stainless steels may fail.

Corrosion Resistance: Stainless Steel 446 provides good resistance to corrosion in various environments, including mildly corrosive and oxidizing atmospheres. This corrosion resistance ensures the durability and longevity of the buttweld fittings, even in challenging operating conditions.

Strength and Stability: Stainless Steel 446 buttweld fittings offer high strength and stability, allowing them to withstand high-pressure and high-temperature environments without deformation or failure. They provide reliable and leak-free connections, ensuring the integrity of the piping system.

Weldability: Stainless Steel 446 has good weldability, enabling easy fabrication and welding of the buttweld fittings. This facilitates efficient production processes and ensures strong and secure weld joints.

Types of Stainless Steel 446 Buttweld Fittings

Stainless Steel 446 45 Degree Elbow SS 446 45 Degree Elbow 446 SS 90 Degree Elbow SS 446 Stainless Steel 45 Degree Elbow SS UNS S44600 45 Degree Elbow ASME SA403 WERKSTOFF NR.1.4762/1.4763 90 Degree Elbow
Stainless Steel 446 Pipe Fittings SS 446 Pipe Fittings 446 SS Buttweld Fitting 446 Stainless Steel Pipe Fitting SS UNS S44600 Buttweld Fitting SS WERKSTOFF NR.1.4762/1.4763 Pipe Fittings DIN 1.4762 Stainless Steel Buttweld Fitting
Stainless Steel 446 Eccentric Reducer SS  446 Eccentric Reducer 446 SS Eccentric Reducer 446 Stainless Steel Eccentric Reducer SS UNS S44600 Eccentric Reducer ASTM A403 WERKSTOFF NR.1.4762/1.4763  Stainless Steel Eccentric Reducer
Stainless Steel 446 Concentric Reducer SS 446 Concentric Reducer 446 SS Concentric Reducer 446 Stainless Steel Concentric  Reducer SS UNS S44600 Concentric Reducer ANSI B16.9 WP WERKSTOFF NR.1.4762/1.4763 Stainless Steel Concentric Reducer
Stainless Steel 446 Lateral Tee 446 Lateral Tee 446 SS Lateral Tee 446 Stainless Steel Lateral Tee SS UNS S44600 Lateral Tee SS 446 Lateral Tee ASME B16.28 WP446 Stainless Steel Lateral Tee
Stainless Steel 446 Equal Tee SS 446 Equal Tee 446 SS Equal Tee 446 Stainless Steel Equal Tee ASME B16.28 WP 446 Stainless Steel Equal Tee SS WERKSTOFF NR.1.4762/1.4763 Equal Tee ASTM A403 Stainless Steel 446 Equal Tee
Stainless Steel 446 Long Stub End SS 446 Long Stub End 446 SS Long Stub End 446 Stainless Steel Long Stub End SS UNS S44600 Long Stub End SS 446 Long Stub End ASTM A403 WP 446 Stainless Steel Long Stub End
Stainless Steel 446 Short Stub End SS 446 Short Stub End 446 SS Short Stub End 446 Stainless Steel Short Stub End SS UNS S44600 Short Stub End SS 446 Short Stub End MSS-SP-43 Stainless Steel 446 Short Stub End
Stainless Steel 446 End Cap SS 446 End Cap 446 SS End Cap 446 Stainless Steel End Cap SS UNS S44600 End Cap WERKSTOFF NR.1.4762/1.4763 End Cap ASTM A403 446 Stainless Steel End Cap
Stainless Steel 446 Bend SS 446 Pipe Bend 446 SS Pipe Bend Stainless Steel 3d Pipe Bend 446 Stainless Steel Bend SS UNS S44600 Bend WERKSTOFF NR.1.4762/1.4763 Bend ASTM A403 Stainless Steel 446 Bend
Stainless Steel 446 Equal Cross SS 446 Equal Cross 446 SS Equal Cross 446 Stainless Steel Equal Cross SS UNS S44600 Equal Cross WERKSTOFF NR.1.4006 Equal Cross ANSI B16.9 WERKSTOFF NR.1.4762/1.4763Stainless Steel Equal Cross

SS 446 Pipe Fittings Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
446 min. 23.0 0.10
max. 0.2 1.5 0.75 0.040 0.030 30.0 0.50 0.25

Stainless Steel 446 Butt weld Fittings Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
446 485 275 20 92 201

Equivalent Grades for 446 Stainless Steel Pipe Fitting

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
446 S44600 1.4762 / 1.4763

Types of Buttweld Fittings

Shivalik offers a wide range of Stainless Steel 446 buttweld fittings to suit diverse piping requirements. Some common types of buttweld fittings available are:

Buttweld Elbows: Elbows are used to change the direction of the pipeline. They are available in various angles, such as 45 degrees, 90 degrees, and 180 degrees, to accommodate different 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 sizes. They provide a smooth transition between different pipe diameters, 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 substances. They are often used in applications where pipe ends need to be sealed temporarily or permanently.

Buttweld Crosses: Crosses are used to create a branch connection with multiple outlets. They have one inlet and three outlets, allowing for complex piping configurations.

These are just a few examples of the types of buttweld fittings available, and Shivalik can provide customized solutions to meet specific project requirements.

Why Shivalik is the Best Manufacturer and Supplier of Buttweld Fittings

Shivalik stands out as the leading manufacturer and supplier of Stainless Steel 446 buttweld fittings for several reasons:

Quality Assurance: Shivalik is committed to delivering top-quality buttweld fittings that meet international standards and customer expectations. Their products undergo stringent quality control measures to ensure impeccable performance and reliability.

Extensive Inventory: Shivalik maintains a vast inventory of Stainless Steel 446 buttweld fittings, ensuring prompt availability and quick delivery. Their comprehensive range of fittings caters to various sizes, schedules, and configurations, meeting diverse project requirements.

Customization Options: Recognizing that each project may have unique specifications, Shivalik offers customization options for dimensions, materials, and finishes. This enables customers to obtain tailor-made buttweld fittings that precisely meet their needs.

Technical Expertise: With years of industry experience, Shivalik has developed extensive technical expertise in buttweld fittings. Their knowledgeable team provides valuable guidance and support, assisting customers in selecting the right fittings for their applications.

Customer Satisfaction: Shivalik prioritizes customer satisfaction and strives to exceed expectations. They provide responsive customer service, timely order fulfillment, and efficient after-sales support, ensuring a seamless experience for their clients.

Choose Shivalik as your trusted supplier of Stainless Steel 446 buttweld fittings and benefit from their exceptional quality, extensive inventory, customization options, technical expertise, and customer-centric approach. Partner with Shivalik for reliable and high-performance buttweld fittings for your piping systems.

Get in Touch

Contact Info