Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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4130,4140,C45,C60 Non-Standard Sizes Alloy or Carbon Steel Custom Forging Blanks
Custom Open Die Forging Blanks in Non-Standard Sizes | 4130, 4140, C45, C60 Alloy & Carbon Steel
We specialize in open die forged blanks made from 4130, 4140, C45, and C60 carbon and alloy steels, tailored to non-standard sizes and customer specifications. Ideal for gear components, machinery parts, and industrial applications, our forgings offer excellent mechanical properties, dimensional accuracy, and reliable performance.
With over 25 years of forging experience, we support small-batch orders, provide full material certificates (EN10204 3.1/3.2), and have long-term experience exporting to European markets. All forging blanks are produced under strict quality control with in-house inspection and rough machining capabilities.
Rough blanks of large steel forgings are the foundational components used across a wide range of heavy-duty industries, including energy, marine, mining, and industrial equipment. They are forged to near-net shapes, offering an optimal starting point for precision machining and final processing.
| Material | 4140,4130,18CrNiMo7-6,4340,4330,1.7225,35# 45# 20CrMnTi 20CrNi2Mo 20CrMnMo 18CrNiMo7-6 42CrMo 20CrNo 35CrMo |
| Equipment | 5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for | Various industrial gearboxes, wind power, port machinery |
| Manufacturing Process | Forging+heat treatment+rough machining+finish machining |
| Forging ratio | ≥3 |
| Delivery terms | Rough machining(N+T) |
| Test equipment | Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service | Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
Function:
These rough blanks serve as pre-formed structures that enable efficient downstream machining, minimizing material waste and reducing production time for components such as shafts, flanges, cylinders, and rings.
Specifications:
Size Range: Performed in accordance with customer-specific standards
Weight Range: 100 kg to 7 tons
Standards: per customer drawings
Surface: Descaled, rough-machined
Competitive Advantages:
Flexible, custom forging solutions tailored to client specifications
Raw materials sourced from reputable, certified steel mills
Short lead times and reliable delivery
Full traceability and stringent quality control at every step
Ideal for secondary machining and component manufacturing
Here are the answers to common questions about our forging services:
What's your forging weight capacity? We produce custom-forged components from 100 kg to 7000 kg, depending on shape and material.
Do you offer heat treatment and machining? Yes, we provide complete in-house services, including quenching & tempering, carburizing, and both rough and finish CNC machining, tailored to your technical requirements.
Which industries do you serve? Our forged parts are used in wind power, heavy industrial equipment, port lifting systems, gear transmission, mining, and oil & gas sectors.
What is your standard lead time? Expect around 30 days for stocked raw materials, and 40–45 days for new production orders, depending on size and complexity.
Where is your factory located? Our forging facility is in Changzhou City, Jiangsu Province, strategically located near Shanghai Port for convenient logistics.
Looking for a tailored forging solution? Share your technical drawings, material specifications, and performance requirements with us. Our engineering team will evaluate your request and provide a detailed quotation and technical suggestions to support your project's success.