Types of Forgings
- Open-Die Forging: This dynamic technique involves deforming metal between flat or intricately contoured dies. Ideal for crafting large, straightforward shapes, it offers exceptional strength and remarkable ductility.
- Closed-Die Forging: This precise method encloses metal in a carefully crafted die cavity, compelling it to conform to the desired shape. Perfect for complex geometries and achieving tight tolerances, it's a testament to advanced engineering.
- Hot Forging: By elevating the metal’s temperature beyond its recrystallization point, this process facilitates easier deformation, making it a staple for high-volume production. The result is robust, durable components.
- Cold Forging: Conducted at room temperature, this technique enhances material strength through work hardening, though it demands greater force. It's ideal for creating exceptionally strong parts without compromising structural integrity.
Process
The forging process is a meticulous series of steps designed to craft superior components:
- Heating: The metal is precisely heated to achieve optimal conditions for the forging process, ensuring efficiency and quality.
- Shaping: With precision, the heated metal undergoes shaping by powerful mechanical presses or hammers, forming the essence of the final product.
- Cooling: Post-shaping, the forged masterpiece is allowed to cool, often followed by strategic heat treatment to enhance its properties.
- Finishing: To meet exacting specifications, additional processes such as machining or surface treatment are performed, perfecting the final creation.
Dimensions
Forged components exhibit a vast range of sizes, from tiny fasteners to enormous structural elements. Standard sizes typically span from a few millimeters to several meters, tailored to fit diverse applications.
Applications
Renowned for their unparalleled strength, durability, and reliability, forgings are indispensable across industries like aerospace, automotive, and construction, providing foundational support and innovation.

Wuxi Weldpi Stainless Steel Pipe Manufacturing Co., Ltd. stands as an unrivaled icon of excellence, pioneering the realms of stainless steel, titanium, and nickel alloy welded pipe industries with remarkable distinction.
Endorsed by the renowned Haynes International, Inc., we are unwavering in our commitment to the stringent ISO9001:2001 quality management framework, ensuring unparalleled product quality and reliability.
Our prestigious credentials speak volumes about our dedication to excellence, boasting the prestigious EU EN3.1 certificates alongside the TS pressure pipeline component manufacturing license. Our welding standards consistently meet and frequently surpass leading global benchmarks, including the esteemed TUV certifications.
We are passionately committed to delivering swift, dependable, and cutting-edge metal pipeline solutions to our valued clients all over the world.




Our Our factory stands as a beacon of innovation with its comprehensive and state-of-the-art production line specifically tailored for alloy steel pipes. We start with meticulous raw material evaluations and proceed through rigorous final product approvals. This includes PMI material re-inspection and stringent experimental data validation, all while adhering closely to an all-encompassing Standard Operating Procedure (SOP) process. Our welding protocols strictly meet the demanding WPS and PQR standards, ensuring exceptional quality assurance at every step.
Equipped with cutting-edge manufacturing technologies, our facility boasts advanced machinery such as the Dutch DELEM CNC bending machines, expertly handling thicknesses ranging from 2mm to an impressive 100mm. Our arsenal also includes state-of-the-art Austrian Fronius welding machines and precision Japanese FANUC welding robots. Complementing these are our sophisticated laser welding seam guidance and tracking systems. Together, this robust automated welded pipe production line delivers unparalleled product consistency and reliability, meeting the highest standards of excellence.
Weldpi has achieved an impressive array of prestigious certifications both domestically and internationally. These accolades include the esteemed EU ISO9001 quality management system certification, the highly respected TUV welding certification, and the China Pressure Pipe Manufacturing License (TS), underscoring our commitment to superior quality and compliance with global standards.
Weldpi Pipe Industry is proud to hold the exclusive authorization from American Hastelloy Company within China. This prestigious partnership empowers us to collaborate, innovate, and produce cutting-edge Hastelloy long products, setting new benchmarks in the industry.
We are passionately dedicated to the craft of creating products of unparalleled quality. Our commitment is unwavering in providing swift, reliable, and innovative piping solutions and services to our valued global customers, ensuring excellence and satisfaction with every engagement.
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