Types of Forgings
- Open-Die Forging: In open-die forging, metal is artfully deformed between flat or intricately contoured dies, making it ideal for crafting large, simple shapes. This technique provides exceptional strength and ductility, ensuring robust and reliable components.
- Closed-Die Forging: Closed-die forging involves enclosing metal in a specifically designed die cavity, where it is compelled to adopt the cavity's shape. This advanced method allows for the creation of more complex geometries and achieves tighter tolerances, offering precision and finesse.
- Hot Forging: In hot forging, metal is meticulously heated above its recrystallization temperature, easing deformation. This technique is extensively employed for large-scale production, facilitating efficiency and versatility in manufacturing.
- Cold Forging: Cold forging involves shaping metal at room temperature. This not only enhances strength through work hardening but also requires higher forces. It is a process that ensures resilience and integrity in the final product.
Process
The forging process is a comprehensive affair that typically unfolds through several meticulous steps:
- Heating: Initially, the metal is precisely heated to attain the desired temperature essential for the forging process. This step is crucial for malleability and formability.
- Shaping: The heated metal then undergoes shaping through the use of powerful mechanical presses or hammers, skillfully sculpting it into the intended form.
- Cooling: Following shaping, the forged part is deliberately allowed to cool, and occasionally undergoes additional heat treatment to enhance its properties.
- Finishing: Finally, additional processes such as precise machining or surface treatments may be performed, ensuring the component meets the final specifications with perfection and refinement.
Dimensions
Forged components exhibit remarkable diversity in size, ranging from diminutive fasteners to colossal structural parts. Standard sizes typically span a few millimeters to several meters, adapting to the specific demands of each application.
Applications
Forgings find widespread applications across industries like aerospace, automotive, and construction due to their unparalleled strength, enduring durability, and unwavering reliability, making them indispensable in critical engineering projects.

Wuxi Weldpi Stainless Steel Pipe Manufacturing Co., Ltd. stands as a beacon of unparalleled excellence, proudly leading the way in the stainless steel, titanium, and nickel alloy welded pipe industry with unmatched distinction.
With the prestigious endorsement of Haynes International, Inc., we rigorously adhere to the stringent ISO9001:2001 quality management system, ensuring unparalleled quality and reliability.
Our distinguished credentials are a testament to our relentless pursuit of excellence, boasting the illustrious EU EN3.1 certificates and the TS pressure pipeline component manufacturing license. Our welding standards not only meet but frequently surpass premier international criteria, including esteemed TUV certifications.
Our unwavering commitment is to deliver fast, reliable, and cutting-edge metal pipeline solutions to our valued global clientele.




Our Commitment to Excellence Our state-of-the-art factory presents a fully integrated, advanced production line dedicated to alloy steel pipes. From the meticulous evaluation of raw materials to the rigorous final product approval, including PMI material re-inspection and experimental data validation, we adhere to a comprehensive and robust SOP process. Each welding process is conducted in strict adherence to WPS and PQR standards, ensuring a flawless and consistent quality assurance.
Equipped with pioneering manufacturing technology, we feature Dutch DELEM CNC bending machines adept at managing thickness from 2mm to 100mm; Austrian Fronius welding devices, sophisticated Japanese FANUC welding robots, and cutting-edge laser welding seam guidance and tracking systems. This formidable automated welded pipe production line ensures unrivaled uniformity and reliability of our products.
Weldpi has achieved numerous distinguished domestic and international certifications, proudly including the EU ISO9001 quality management system certification, the esteemed TUV welding certification, and the China Pressure Pipe Manufacturing License (TS).
Weldpi Pipe Industry takes great pride in holding the exclusive authorization from the prestigious American Hastelloy Company in China, empowering us to collaborate, innovate, and manufacture Hastelloy long products.
Our unwavering dedication is to crafting products of exceptional quality. We are resolutely committed to delivering rapid 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