Recently, Haihao Group successfully completed the production and shipment of large-diameter elbows for an Iranian client. The order included ASME B16.9 90° long radius elbows (LR Elbow) with butt weld (BW) ends, manufactured from ASTM A234 WPB material. The shipment covered multiple sizes, including 28″, 30″, and 42″ elbows, each carefully packaged and protected to ensure safe transportation.
ASME B16.9 Large Diameter Elbows
Manufacturing Large-Diameter Elbows: A Test of Strength and Precision
Producing large-diameter elbows is a challenge that demands highly advanced manufacturing capabilities. The bending and forming process for such oversized components requires precision engineering, high-strength materials, and state-of-the-art equipment. Key factors that define the complexity of manufacturing these elbows include:
1.High-Quality Raw Materials – Large-diameter elbows must be produced from premium-grade carbon steel to ensure strength, durability, and resistance to high pressure.
2.Precision Bending and Forming – Unlike standard-sized elbows, oversized elbows require specialized hot induction bending or mandrel bending techniques to achieve the perfect curve without material defects.
3.Heat Treatment Process – To enhance mechanical properties, these elbows undergo strict normalizing, quenching, and tempering heat treatment procedures.
4.Non-Destructive Testing (NDT) – Each elbow is subjected to ultrasonic testing (UT), magnetic particle testing (MT), and X-ray inspection to ensure there are no cracks, voids, or defects.
5.Surface Protection and Coating – For corrosion resistance and durability, these elbows are often treated with anti-rust coatings, black paint, or galvanized finishes, depending on the client’s requirements.
ASME B16.9 Large Diameter Elbow
Efficient Packaging and Secure Shipping
Given the size and weight of these large elbows, Haihao Group implements a specialized packaging and transportation strategy to ensure safe delivery:
Protective Wrapping – Each elbow is covered with protective materials, including wooden crates, plastic wrapping, and reinforced steel straps, to prevent surface damage during handling.
Customized Pallets and Containers – Large-diameter elbows require customized wooden pallets or steel supports to maintain stability during shipping.
Heavy-Duty Transportation – Shipping such oversized components requires the use of flatbed trucks, heavy-lift cranes, and specialized shipping containers.
Global Logistics Expertise – Our experienced logistics team carefully plans the shipping routes, customs clearance, and documentation to ensure smooth and timely delivery.
Why Choose Haihao Group for Large-Diameter Pipe Fittings?
With decades of experience in manufacturing industrial pipe fittings, Haihao Group has established itself as a leading global supplier of butt-weld elbows, tees, reducers, caps, and customized fittings. Our state-of-the-art production facilities and rigorous quality control systems ensure that we meet the highest international standards, including ASME, ASTM, API, ISO and so on.
This successful shipment to Iran once again demonstrates our strong production capabilities, advanced testing procedures, and efficient global logistics network. Whether for oil and gas pipelines, petrochemical plants, power stations, or large-scale infrastructure projects, Haihao Group is committed to providing top-quality pipe fittings and exceptional service to customers worldwide.
For more information about our large-diameter elbows, fittings, and customized solutions, feel free to contact Haihao Group today! Email:sales@haihaogroup.com
