Types of Forgings
- Open-Die Forging: This technique involves deforming metal between either flat or specially contoured dies, making it a preferred choice for crafting large, simple shapes. Open-die forging offers exceptional strength and ductility, ideal for robust applications.
- Closed-Die Forging: In this sophisticated method, metal is entirely enclosed within a die cavity, compelling it to conform to the desired shape. This approach is perfect for creating intricate geometries with tighter tolerances, ensuring precision in every forged piece.
- Hot Forging: By heating metal beyond its recrystallization temperature, hot forging becomes a seamless process, facilitating easier deformation. This approach is widely employed in large-scale productions, ensuring efficient manufacturing of high-quality components.
- Cold Forging: Cold forging involves shaping metal at ambient temperatures, enhancing its strength through work hardening. Although this method may require greater force, it delivers components with superior strength, making it highly advantageous for certain applications.
Process
The forging process typically unfolds through several pivotal stages:
- Heating: Initially, the metal is meticulously heated to reach the optimal temperature necessary for forging, preparing it for subsequent transformations.
- Shaping: Once heated, the metal is expertly shaped utilizing advanced mechanical presses or hammers, crafting it into the desired configuration.
- Cooling: After achieving the desired shape, the forged part is left to cool naturally. It may undergo further heat treatment to enhance its properties.
- Finishing: The finishing process might include precision machining or sophisticated surface treatments to ensure the final specifications are met with excellence.
Dimensions
Forged components exhibit a remarkable range in size, extending from tiny fasteners to expansive structural parts. Standard dimensions often span from mere millimeters to several meters, tailored meticulously to fit specific applications.
Applications
Renowned for their extraordinary strength, durability, and reliability, forgings are integral to industries such as aerospace, automotive, and construction, where they are instrumental in ensuring optimal performance and safety.

Wuxi Weldpi Stainless Steel Pipe Manufacturing Co., Ltd. stands as a beacon of unparalleled excellence, leading the stainless steel, titanium, and nickel alloy welded pipe industry with distinction.
With the prestigious endorsement of Haynes International, Inc., we steadfastly adhere to the rigorous ISO9001:2001 quality management system, guaranteeing unmatched quality and dependability.
Our distinguished credentials are a testament to our relentless pursuit of quality, featuring the illustrious EU EN3.1 certificates and the TS pressure pipeline component manufacturing license. Our welding standards not only meet but often exceed premier international criteria, including TUV certifications.
Driven by innovation and excellence, our steadfast commitment is to provide expedited, reliable, and avant-garde metal pipeline solutions to our cherished global clientele, consistently exceeding their expectations with every project.




Our At the heart of our factory lies a state-of-the-art production line dedicated to alloy steel pipes, featuring a seamless integration of advanced technologies. From the initial stages of raw material assessment to the final stamp of approval, our process is meticulously guided by a comprehensive SOP. With PMI material re-inspection and experimental data validation at every step, we uphold the highest standards of quality assurance. Our welding procedures are strictly aligned with WPS and PQR standards, ensuring precision and excellence in every weld.
Outfitted with pioneering manufacturing technology, our facility boasts an impressive array of equipment: Dutch DELEM CNC bending machines deftly handle thicknesses from 2mm to 100mm; Austrian Fronius welding machines join forces with Japanese FANUC welding robots, augmented by cutting-edge laser welding seam guidance and tracking systems. This powerhouse of automated welded pipe production ensures unsurpassed uniformity and reliability in our products.
Weldpi proudly holds a distinguished array of prestigious domestic and international certifications. Among them, the esteemed EU ISO9001 quality management system certification, TUV welding certification, and the revered China Pressure Pipe Manufacturing License (TS). These accolades underscore our unwavering commitment to quality and innovation.
Weldpi Pipe Industry holds the esteemed honor of being the exclusive partner authorized by the American Hastelloy Company in China. This unique collaboration empowers us to innovate and produce superior Hastelloy long products, setting new benchmarks in quality and performance.
Our steadfast commitment is to delivering unparalleled quality in our products. We pledge to provide quick, reliable piping solutions and exceptional services to our valued global customers, strengthening bonds of trust and excellence worldwide.
Are you a factory or a trading company?
We are a dedicated factory specializing in the manufacturing of seamless stainless steel pipes. Additionally, we offer welded stainless steel pipes and pipe fittings to meet your comprehensive needs. Our in-depth market knowledge ensures that we deliver only the highest quality products, each meticulously inspected before shipment.
Do you have any certificates?
We proudly hold numerous prestigious domestic and international certifications, including the EU ISO9001 Quality Management System Certification, TUV Welding Certification, and the China Pressure Pipe Manufacturing License (TS).We are also exclusively authorized by the American Hastelloy Company in China for the collaboration, development, and production of Hastelloy long products.
What is your delivery time?
Delivery time primarily depends on your order volume. Typically, we deliver within approximately one month for a standard 40FT container. For in-stock items, shipping can be expedited to just 5 days.
What are your payment terms?
Our standard payment terms are a 30% deposit with the remaining balance against the bill of lading. We also accept L/C. Shipping terms include EXW, FOB, CFR, and CIF, tailored to your preference.
How can you guarantee the quality of my goods?
We ensure all materials undergo 100% PMI testing and precise measurement before shipping. We welcome third-party inspections and provide the EN10204.3.1B Mill Test Certificate for all materials.
How do you establish long-term and positive business relationships?
1. We maintain superior quality and competitive pricing to maximize our customers' benefits.
2. We respect every customer, conducting business with sincerity and maintaining high service standards both before and after every transaction