Ace Alloys LLP

Carbon steel U-bends are 180-degree return pipe bends made from low-carbon steel (typically ASTM A106 or A53), used for compact direction reversal in heat exchangers, boilers, or exhaust systems. They feature long radii (3D, 5D, 10D) to minimize flow resistance and pressure drop, complementing prior pipe caps, socket weld unions, concentric reducers, flanges, and elbows in industrial piping.​

Key Features

Seamless construction ensures strength; beveled ends for butt welding per ASME B16.9. Sizes from 1/2"-24" NPS seamless, up to 36" welded.​

Dimensions

Center-to-center (C) and back-to-face (A/B) distances scale with radius and size.​

Seamless Bend is a high-quality pipe fitting used to change the direction of flow in piping systems, typically at 45°, 90°, or custom angles, without compromising the integrity of the pipeline. Manufactured from seamless carbon steel, alloy steel, or stainless steel, these bends are produced from a single solid piece of metal, ensuring uniform strength, superior pressure resistance, and smooth internal flow.

Seamless bends are preferred over welded bends because they eliminate weld seams, reducing the risk of leakage or failure under high pressure and high-temperature conditions. They are available in short radius (SR) and long radius (LR) configurations to suit specific pipeline designs and flow requirements. These fittings are manufactured in compliance with standards such as ASME B16.9, ASTM A234 WPB, and IS 1239, ensuring accurate dimensions and reliable performance.

Seamless bends are widely used in oil and gas pipelines, petrochemical plants, refineries, power generation facilities, chemical processing units, and industrial piping networks. Their durability, high-pressure resistance, and smooth flow characteristics make them ideal for critical applications where safety, efficiency, and long-term reliability are essential.

MS short bends are mild steel pipe fittings designed to change flow direction over a compact distance, typically with a short radius of 1D (equal to nominal pipe diameter), ideal for space-constrained installations. 

Stainless steel long stub ends are specialized butt-weld pipe fittings designed for lap joint flange connections, featuring extended lap lengths for better flange alignment and rotation during installation. They provide a cost-effective alternative to welded flanges, made from corrosion-resistant grades like ASTM A403 WP304/316 per ASME B16.9 standards. ​

Dimensions

Long pattern stub ends have lap lengths typically 1.5-2x pipe OD; for 3" NPS Sch 40S: pipe OD 88.9 mm, lap OD (G) 127 mm, overall length (F) 152 mm, wall thickness 5.49 mm.  ​

Specifications

Available in Type A (backing ring), B (no ring), C (machineable); sizes 1/2" to 48" NPS in Sch 5S-XXS schedules, seamless or welded for Class 150-900 pressures up to 800°C.  ​

Applications

Used in low-pressure chemical, water, and general piping where flange flexibility aids assembly; pairs with backing flanges for non-corrosive bolting materials.  ​

Mild Steel Long Radius Bend is a pipe fitting designed to change the direction of flow in a piping system gradually, typically at 90° or 45° angles, with a radius of curvature 1.5 times the pipe diameter (1.5D). Manufactured from mild steel, these bends provide excellent strength, ductility, and weldability, making them suitable for low- to medium-pressure applications.

Long radius bends are preferred over short radius bends because they minimize pressure drop, reduce turbulence, and decrease stress on the pipeline, ensuring smoother fluid flow and longer service life. They are available in butt weld, socket weld, and threaded end configurations to match the piping system requirements. These fittings conform to standards such as ASME B16.9, ASTM A234 WPB, and IS 1239, ensuring precise dimensions and reliable performance.

Mild steel long radius bends are widely used in water supply lines, HVAC systems, oil and gas pipelines, chemical processing plants, and general industrial piping systems. Their durability, ease of installation, and cost-effectiveness make them an ideal choice for systems requiring efficient flow, minimal maintenance, and long-term reliability.

Mild steel 3D long bends are curved pipe fittings with a 3D radius (3 times nominal pipe diameter), made from low-carbon mild steel for smooth 90° or 180° direction changes in low-pressure systems like water supply or construction.​

Key Features

Longer radius than standard LR elbows reduces turbulence and erosion; butt-weld ends per ASME B16.9. Cost-effective for MS piping, matching prior U-bends, caps, unions, reducers, and flanges.​

Specifications

Sizes 2"-24" NPS, SCH 40/80; center-to-face ~3D (e.g., 6" NPS: ~450mm radius).

U-Bend Pipe Fittings are specialized piping components designed to change the direction of flow in a pipeline by 180°, forming a “U” shape. They are primarily used to redirect fluids or gases in a compact space and are essential in piping systems where a sharp turnaround is required without the use of multiple elbows.

U-bends are manufactured from carbon steel, alloy steel, stainless steel, or mild steel, providing high strength, durability, and resistance to pressure and temperature. They are typically produced as seamless or welded butt weld fittings, ensuring strong, leak-proof joints. These fittings are available in various sizes and radii, and conform to standards such as ASTM A234, ASME B16.9, and MSS SP-75, ensuring dimensional accuracy and reliable performance.

U-bend fittings are widely used in boiler pipelines, heat exchangers, HVAC systems, oil and gas pipelines, petrochemical plants, refineries, and industrial piping systems. Their compact design, durability, and high-pressure resistance make them ideal for efficient fluid flow redirection in critical applications.

GI Bend Pipe Fitting is a galvanized iron (GI) fitting used to change the direction of fluid flow in piping systems, typically at 45° or 90° angles. Made from mild steel with a zinc coating, GI bends offer excellent corrosion resistance, protecting the pipe from rust and extending the service life of the system.

These bends are commonly used in plumbing, water supply, drainage systems, and industrial piping networks. They are available in various sizes and diameters to match standard GI pipes and are compatible with butt weld, socket weld, or threaded connections, depending on the system requirements. The smooth internal surface ensures minimal pressure drop and efficient flow of liquids or gases.

GI bend pipe fittings are widely used in residential, commercial, and industrial applications, including water distribution systems, irrigation lines, and HVAC pipelines. Their durability, corrosion resistance, and ease of installation make them a cost-effective and reliable choice for piping systems exposed to moisture or harsh environmental conditions.

MS Hot Induction Bends are carbon steel (mild steel) pipe bends formed through hot induction heating for large-radius turns in high-pressure pipelines. They offer seamless construction with minimal wall thinning, ideal for oil, gas, and water transmission lines.​

Specifications

Produced per ASME B16.9 or MSS SP-75 standards, sizes range from 2" to 48" NPS with wall thicknesses 1.5-20 mm. Bend radii typically 1.5D, 3D, 5D, or 10D; angles from 15° to 180°.