Types of Forgings
- Open-Die Forging: Metal is expertly deformed between flat or uniquely contoured dies, a method ideal for crafting large, straightforward shapes. This process ensures exceptional strength coupled with outstanding ductility.
- Closed-Die Forging: In this sophisticated process, metal is enclosed within a die cavity, compelling it to adopt the intricate shape of the die. This method supports the creation of complex geometries and achieves precise tolerances.
- Hot Forging: Here, the metal is heated beyond its recrystallization point, facilitating easier deformation. This is a favored method for large-scale production scenarios due to its efficiency and versatility.
- Cold Forging: Conducted at ambient temperatures, this technique enhances metal strength through work hardening, yet demands greater force for shaping. It is ideal for applications requiring superior strength.
Process
The forging process typically unfolds through a series of meticulously orchestrated steps:
- Heating: The metal is elevated to a specific temperature, optimizing it for the forthcoming forging procedure.
- Shaping: Employing powerful mechanical presses or hammers, the heated metal is expertly shaped to the desired form.
- Cooling: Once shaped, the forged component cools naturally, with the possibility of subsequent heat treatment to refine properties.
- Finishing: To meet precise final specifications, additional processes such as machining or advanced surface treatments may be applied.
Dimensions
Forged components exhibit remarkable size variability, from diminutive fasteners to massive structural elements. Standard dimensions span a few millimeters to several meters, tailored to the specific application.
Applications
Renowned for their strength, durability, and reliability, forgings find extensive application across diverse industries, including aerospace, automotive, and construction sectors.

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.
Our steadfast commitment is to provide expedited, reliable, and avant-garde metal pipeline solutions to our cherished global clientele.




Our Expertise Our factory proudly boasts a state-of-the-art production line dedicated to alloy steel pipes. From the meticulous evaluation of raw materials to the rigorous approval of the final product, we implement PMI material re-inspection and validate experimental data, all while adhering to a comprehensive SOP process. Our welding procedures strictly comply with WPS and PQR standards, ensuring unparalleled quality assurance throughout.
Our manufacturing capabilities are enhanced by cutting-edge technology, including the Dutch DELEM CNC bending machines capable of working with materials from a delicate 2mm to a robust 100mm in thickness. We also feature Austrian Fronius welding machines and Japanese FANUC welding robots, complemented by laser welding seam guidance and tracking systems. This formidable, automated welding pipe production line ensures outstanding product uniformity and unwavering reliability.
Weldpi has proudly achieved numerous prestigious domestic and international certifications. These include the EU ISO9001 quality management system certification, the esteemed TUV welding certification, and the China Pressure Pipe Manufacturing License (TS).
Weldpi Pipe Industry is privileged to hold the exclusive authorization from the esteemed American Hastelloy Company in China. This collaboration allows us to innovate and produce high-quality Hastelloy long products.
Our steadfast commitment is to the creation of superior quality products. We are dedicated to providing rapid and reliable piping solutions and services to our valued global customers.
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