Reliable Manufacturers of Welded Pipe Bends - ASME/ANSI B16.9, ANSI B16.28, MSS-SP-43
A welded pipe bend is a type of pipe fitting that is used to change the direction of a pipeline. Unlike seamless bends, welded pipe bends are created by welding two pieces of pipe together to form a bend. These fittings are designed to handle the stress and pressure of various piping systems in industries such as oil and gas, petrochemical, water treatment, and more. Welded pipe bends are typically manufactured to comply with international standards such as ASME B16.9, ANSI B16.28, and MSS-SP-43 to ensure consistency in dimensions, performance, and durability.
The primary advantage of welded bends is their ability to accommodate larger sizes and thicker wall thicknesses compared to seamless options. They are available in various angles, such as 45°, 90°, and 180°, and can be customized to fit specific project requirements. With proper welding techniques, these bends offer high structural integrity, allowing them to withstand extreme temperatures and pressures. Welded pipe bends are essential components in the construction of pipelines, ensuring the efficient flow of fluids and gases while maintaining the overall stability and safety of the system.
Ample Alloys is a trusted manufacturer and supplier with a reputation for excellence in the steel industry. With years of experience, we specialize in providing high-quality piping solutions to a diverse range of sectors. Our company is committed to delivering exceptional products that meet international standards, ensuring the reliability and efficiency of the systems we support. we pride ourselves on our customer-centric approach, providing tailored solutions and offering personalized service to each client. With a focus on innovation, timely delivery, and competitive pricing, we have earned the trust of clients worldwide as a reliable supplier for their piping needs.
Stainless Steel, Carbon Steel and Alloy Steel Welded Pipe Bend, High-Quality Welded Pipe Bend Fittings, Custom Welded Pipe Bends, Pressure Resistant Welded Pipe Bend, Durable Welded Pipe Bend Fittings, Welded 90 Degree Pipe Bend
ANSI B16.9 Welded Pipe Bend Specifications
Size Range
1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Wall Thickness
Sch 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, XS, 100, 120, 140, 160, Sch XXS
Stainless Steel
ASTM A403 WP 304, 304L, 304H, 316, 316L, 316H, 317, 317L, 321, 321H, 310, 310S, 347, 904L, etc.
Standards / Dimension
ASME B16.9, ASME B16.28, MSS SP-43, MSS SP-75, ASTM A234, ASTM A403, DIN 2605, 2615, 2616, 2617, 10253.
Type / Form
Pipe Bends.
Alloy Steel
ASTM A234, WP1, WP5, WP9, WP11, WP22, WP91, etc.
Bending Radius
R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Carbon Steel
ASTM A234, A420, MSS-SP-75, WPB, WPL3, WPL6, WPHY 42, WPHY 46, WPHY 52, WPHY 56, WPHY 60, WPHY 65, WPHY 70
Duplex & Super Duplex
ASTM A815 / A815M, UNS S31803 / 2205, UNS S32205, UNS S32101 / LDX 2101, UNS S32750 / 2507, UNS S32760, UNS S32550 / Ferralium 255.
Welded Pipe Bend Dimensions
| Nominal Pipe Size (NPS) | Bend Radius | Center to End | Angle |
|---|---|---|---|
| 1/2" | 1.5D, 3D | 5" | 45°, 90°, 180° |
| 1" | 1.5D, 3D | 6" | 45°, 90°, 180° |
| 2" | 2D, 3D | 7" | 45°, 90°, 180° |
| 3" | 2D, 3D | 8" | 45°, 90°, 180° |
| 4" | 3D, 5D | 10" | 45°, 90°, 180° |
| 6" | 3D, 5D | 12" | 45°, 90°, 180° |
| 8" | 4D, 6D | 14" | 45°, 90°, 180° |
| 10" | 4D, 6D | 16" | 45°, 90°, 180° |
| 12" | 5D, 7D | 18" | 45°, 90°, 180° |
| 16" | 6D, 8D | 20" | 45°, 90°, 180° |
| 20" | 8D, 10D | 22" | 45°, 90°, 180° |
| 24" | 10D, 12D | 24" | 45°, 90°, 180° |
| 30" | 12D, 14D | 26" | 45°, 90°, 180° |
| 36" | 14D, 16D | 28" | 45°, 90°, 180° |
ASME B16.9 Welded Bends Tolerance
| Dimension | Tolerance |
|---|---|
| Bend Radius | ± 1.5% of the nominal bend radius |
| Center to End | ± 1/16" for pipe sizes up to 6" NPS |
| ± 1/8" for pipe sizes above 6" NPS | |
| Angle of Bend | ± 2° |
| Wall Thickness | ± 10% |
| Out-of-Straightness | ± 0.5% of total length of the bend |
| Pipe Length | ± 1/8" for pipe sizes up to 8" NPS |
| ± 1/4" for pipe sizes over 8" NPS | |
| Overall Bend Length | ± 2% of the total bend length |
Welded Bend - Standard Specifications
These specifications, such as those defined by ASME B16.9, ANSI B16.28, and MSS-SP-43, ensure that the bends meet the necessary standards for quality, strength, and durability. The specifications cover important aspects like bend radius, angle, wall thickness, and material selection, ensuring the pipe bends fit seamlessly into piping installations across industries.
- ASME Standards:
- ASME B16.9: Factory-Made Wrought Buttwelding Fittings.
- ASME B16.25: Buttwelding Ends (preparation of ends for welding).
- ASME Standards: Wrought Steel Buttwelding Short Radius Elbows and Returns.
- ASTM Standards:
- ASTM A234: Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High-Temperature Service.
- ASTM A403: Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings.
- ASTM A815: Standard Specification for Wrought Ferritic, Ferritic/Austenitic (Duplex), and Martensitic Stainless Steel Piping Fittings.
- ASTM A860: Standard Specification for High-Strength Low-Alloy Welded Fittings (commonly used in pipelines with high strength requirements).
- API Standards:
- API 5L: Specification for Line Pipe (not directly for fittings but related to pipe material in oil and gas industries).
- API 6A: Specification for Wellhead and Christmas Tree Equipment (covers piping components but specific to high-pressure environments in oil fields).
- MSS (Manufacturers Standardization Society) Standards:
- MSS SP-43: Wrought and Fabricated Butt-Welding Fittings for Low-Pressure, Corrosion Resistant Applications (commonly used for stainless steel in low-pressure applications).
- MSS SP-75: Specification for High-Strength Wrought, Butt-Welding Fittings (used in oil and gas for high-strength requirements).
- MSS SP-79: Socket-Welding Reducer Inserts.
- MSS SP-83: Carbon Steel Pipe Unions, Socket Welding, and Threaded.
- DIN (Deutsches Institut für Normung) Standards (European):
- DIN 2605: Steel Elbows for Butt Welding (elbows dimensions and tolerances).
- DIN 2615: Tees for Butt Welding.
- DIN 2616: Reducers for Butt Welding.
- DIN 2617: Caps for Butt Welding.
- EN (European Norms) Standards:
- EN 10253-1: Butt-Welding Pipe Fittings Made of Non-Alloy and Alloy Steels.
- EN 10253-2: Butt-Welding Pipe Fittings with Specified Elevated Temperature Properties.
- EN 10253-3: Butt-Welding Pipe Fittings Made of Austenitic and Austenitic-Ferritic (Duplex) Stainless Steel.
- EN 10253-4: Butt-Welding Pipe Fittings for Low-Pressure Applications.
- JIS (Japanese Industrial Standards):
- JIS B2311: Steel Pipe Fittings for Butt-Welding.
- JIS B2312: Cast Iron Pipe Fittings for Butt-Welding.
- JIS B2313: Malleable Iron Pipe Fittings for Butt-Welding.
- ISO (International Standards Organization) Standards:
- ISO 5251: Specifications for Butt-Welding Ends for Steel Pipe Fittings (compatible with ISO pipes and equipment globally).
- ISO 15590: Petroleum and Natural Gas Industries — Induction Bends, Fittings, and Flanges for Pipeline Transportation Systems.
- BS (British Standards):
- BS 1640: Steel Butt-Welding Pipe Fittings for the Petroleum Industry.
- BS 3799: Forged Fittings, Screwed, and Socket-Welding for the Petroleum Industry
Why Ample Alloys for Welded Pipe Bend!
Ample Alloys is the preferred choice for welded pipe bends due to our commitment to quality, precision, and reliability. Our expert team utilizes advanced manufacturing techniques and high-grade materials to produce bends that offer superior strength, durability, and performance.
Dedicated Customer Support
Our team of experts provides comprehensive support, from product selection to post-sales service, ensuring a seamless experience for our clients.
Cost-Effective Solutions
Ample Alloys combines quality with affordability, offering top-grade welded pipe bends at competitive prices.
Premium Quality Products
Ample Alloys manufactures welded pipe bends with precision and durability, ensuring they meet the highest standards for strength, reliability, and performance.
Advanced Manufacturing Processes
Equipped with state-of-the-art technology, we deliver welded pipe bends with superior weld integrity and smooth finishes for efficient pipeline operation.
Welded pipe bends are typically manufactured to industry standards such as ASME B16.9, ANSI B16.28, and MSS-SP-43. These standards define the dimensions, tolerances, and material specifications for the production of welded bends.
Welded pipe bends are available in various bend radii, such as 1.5D, 3D, 5D, and so on, where "D" is the nominal diameter of the pipe. The bend radius is chosen based on the application, pipe size, and flow requirements.
Welded pipe bends are commonly used in various industries, including oil and gas, petrochemical, power generation, water treatment, and construction. They are essential for creating piping systems that require directional changes.
