Types of Forgings
- Open-Die Forging: In the realm of open-die forging, metal is artfully deformed between either flat or intricately contoured dies. This technique is ideal for crafting large, straightforward shapes and is renowned for delivering exceptional strength and ductility.
- Closed-Die Forging: In closed-die forging, metal is completely enclosed within a die cavity and compelled to assume its shape. This sophisticated method allows for the creation of more intricate geometries and achieves tighter dimensional tolerances, catering to the demands of precision.
- Hot Forging: Hot forging involves heating the metal above its recrystallization temperature, facilitating easier deformation. This method is predominantly utilized for large-scale production, ensuring efficiency and consistency in manufacturing processes.
- Cold Forging: Cold forging takes place at ambient temperatures, resulting in increased material strength through work hardening. However, this technique often necessitates the application of higher forces to shape the metal.
Process
The forging process is a meticulous procedure that typically comprises several key steps:
- Heating: Initially, the metal is meticulously heated to reach the optimum temperature required for the forging process.
- Shaping: Once heated, the metal undergoes shaping through the use of mechanical presses or hammers, molding it into the desired form.
- Cooling: Following the shaping process, the forged part is allowed to cool down, a step sometimes accompanied by heat treatment to enhance material properties.
- Finishing: In the finishing stage, additional processes such as machining or surface treatment may be employed to refine the component and meet precise final specifications.
Dimensions
Forged components exhibit remarkable variability in size, spanning from diminutive fasteners to colossal structural parts. Standard dimensions generally range from a few millimeters to several meters, tailored to meet diverse application requirements.
Applications
Forgings are indispensable in industries like aerospace, automotive, and construction, celebrated for their unparalleled strength, enduring durability, and reliable performance.

Wuxi Weldpi Stainless Steel Pipe Manufacturing Co., Ltd. stands as a beacon of unparalleled excellence, proudly leading the stainless steel, titanium, and nickel alloy welded pipe industry with distinction and innovation.
With the prestigious endorsement of Haynes International, Inc., we steadfastly adhere to the rigorous ISO9001:2001 quality management system, ensuring unmatched quality and dependability in every product we deliver.
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 the esteemed TUV certifications.
Our unwavering commitment is to provide expedited, reliable, and cutting-edge metal pipeline solutions to our cherished global clientele, ensuring we are always at the forefront of the industry.




Our Our factory is equipped with a state-of-the-art production line dedicated to the creation of alloy steel pipes. We initiate with rigorous raw material assessment and proceed through to final product validation, incorporating PMI material re-inspection and experimental data verification. We adhere to a comprehensive SOP process, ensuring every aspect of production is meticulously controlled. Our welding processes are in full compliance with WPS and PQR standards, guaranteeing exceptional quality assurance.
We are equipped with sophisticated manufacturing technology, featuring an array of world-class machinery: Dutch DELEM CNC bending machines that easily handle thicknesses from 2mm to 100mm; Austrian Fronius welding machines; Japanese FANUC welding robots; and advanced laser welding seam guidance and tracking systems. This robust, automated welded pipe production line delivers outstanding product uniformity and reliability every time.
Weldpi has achieved numerous esteemed domestic and international certifications, proudly including the EU ISO9001 quality management system certification, TUV welding certification, and the China Pressure Pipe Manufacturing License (TS), reflecting our commitment to excellence.
Weldpi Pipe Industry is privileged to hold the exclusive authorization from the American Hastelloy Company in China. This partnership empowers us to collaborate, innovate, and manufacture premium Hastelloy long products.
Our steadfast commitment lies in producing products of superior quality, as we tirelessly strive to provide prompt and reliable piping solutions and services to our esteemed global clientele.
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