Open Die Forging

Our specialized metal forging service includes Open Die Forging, a highly adaptable process ideal for creating large-scale, simple-shaped components. While Closed Die Forging is perfect for high-volume, complex precision parts, and Impression Die Forging offers exceptional dimensional accuracy for intricate designs, our open die method excels in applications requiring superior structural integrity in large workpieces, such as shafts, rings, and cylinders. This process is fundamental in manufacturing robust industrial parts like forged steel flanges and other custom forgings, where the mechanical properties and grain flow are paramount.


The Open Die Forging process involves the controlled deformation of a heated metal billet between two flat or simple-shaped dies. Unlike closed-die methods, the metal is not entirely confined, allowing for significant flexibility in the size and shape of the final product. Skilled operators use a series of compressive blows to gradually shape the material, refining its internal grain structure and enhancing its strength, toughness, and fatigue resistance. This makes Open Die Forging the preferred choice for critical components in demanding industries such as aerospace, oil & gas, power generation, and heavy machinery, where reliability under extreme stress is non-negotiable.

Open Die Forging Specifications & Capabilities

Primary Material Grades

  • Carbon & Alloy Steels: AISI/SAE 1020, 1045, 4140, 4340, 8620
  • Stainless Steels: 304/L, 316/L, 321, 347, 410, 17-4PH
  • High-Temperature Alloys: Inconel 600/625/718, Monel 400/K500
  • Non-Ferrous Alloys: Aluminum, Copper, Titanium, and Nickel-based alloys

Key Process Parameters

Parameter Specification / Range
Maximum Ingot/Billet Weight Up to 50,000 lbs (22,680 kg)
Maximum Workpiece Length Up to 360 inches (9.14 meters)
Maximum Workpiece Diameter Up to 50 inches (1.27 meters)
Forging Temperature Range 1700°F - 2300°F (925°C - 1260°C), material dependent
Press Capacity 3,000 to 12,000 Tons
Dimensional Tolerance ±1/8 in to ±1/4 in (±3mm to ±6mm) standard

Standard & Custom Shapes Produced

  • Rounds & Squares: Solid bars for shafts, rollers, and mandrels.
  • Hollows & Rings: Seamless rings for bearings, gears, and flanges.
  • Blocks & Slabs: Rectangular forms for further machining.
  • Custom Contours: Step-shafts, cones, and other near-net shapes.

Post-Forging Services (Value-Added)

Service Description
Heat Treatment Annealing, Normalizing, Quenching & Tempering, Solution Treating.
Machining Rough and finish machining to tight tolerances.
Testing & Certification UT, MT, PT, mechanical testing, and full material traceability (MTR).
Surface Finishing Shot blasting, painting, or specialized coatings as required.

Hot Products

  • CNC Milling Parts

    CNC Milling Parts

    Are you in need of high-quality Youlin® CNC Milling Parts delivered on-time? From prototypes to production, Youlin has the equipment and expertise to insure you’re in good hands. Many of our customers trust our ability to provide fast, efficient, and reliable CNC Milling Parts for a variety of industries.
  • Cold Formed Copper Parts

    Cold Formed Copper Parts

    China Customized Youlin® Cold Formed Copper Parts Manufacturers. We are experts in cold formed copper parts and can design in your required dimensions, tolerances and surface finishes. We can also plan for any additional secondary machining that might be required post-cold forging. Working with you and knowing exactly what results you require helps us design to your standards right from the beginning, instead of trying to find solutions afterward. This is our philosophy at Youlin and how we have been able to become an industry leader in cold formed copper parts.
  • Die Casting

    Die Casting

    Customized Youlin® Die Casting Made in China. Ningbo Youlin Company offers comprehensive aluminum and zinc die casting services to customers throughout the global. We stand out among other aluminum die casting companies because we use only the highest-quality raw materials. In addition, we cast parts from a wide range of aluminum and zinc alloys, ensuring that all die cast parts fit your application’s performance needs, while our experienced tool and die makers build molds that meet even the most critical dimensional requirements.
  • Automobile Aluminum Alloy Support Block Accessories

    Automobile Aluminum Alloy Support Block Accessories

    Ningbo Youlin Trading Co., Ltd. is a professional automobile aluminum alloy support block accessories manufacturer and supplier in China. Youlin® Injection molding plastic parts are widely used create precise, high-quality parts using computer-controlled machines.. Almost every plastic item around you was manufactured using injection molding. This is because the technology can produce identical parts at very high volumes at a very low cost per part.
  • Forged Aluminum Bracket

    Forged Aluminum Bracket

    Customized Youlin® Forged Aluminum Bracket Suppliers. As lightweight metals are widely used, Forged Aluminum Bracket are becoming a choice of many industries. We focus on the manufacturing of non-standard precision aluminum parts with complex structures, and are committed to delivering highly accurate and consistent components to our clients. Our advanced equipment and skilled employees to ensure that our team maintains a strong competitive advantage. We have also been improving the Aluminum CNC Machining process to improve efficiency and quality, and continue to meet customer production needs.
  • Casting Pneumatic Valve Body

    Casting Pneumatic Valve Body

    Ningbo Youlin Trading Co., Ltd. is a large-scale Casting Pneumatic Valve Body manufacturer and supplier in China. We have been specialized in Customized CNC Machining Services of any complexity for the production of Casting Pneumatic Valve Body for many years. Our products have a good price advantage and cover most of the European and American markets. We look forward to becoming your long-term partner in China.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept