Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | T/T |
| Delivery Time | 30-45days |
| Packaging Details | Wooden |
| Supply Ability | 56000 Tons per year |
| Face Type | Raised Face, Flat Face, Ring Type Joint |
| Materials | carbon Steel,alloy Steel |
| Thickness | Customized |
| Technics | Froged |
| Production Process | Forging+heat treatment+rough machining |
| Features | High Strength|Resistant To Corrosion |
| Packge | Wooden Case or as customer's request |
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Product Specification
| Payment Terms | T/T | Delivery Time | 30-45days |
| Packaging Details | Wooden | Supply Ability | 56000 Tons per year |
| Face Type | Raised Face, Flat Face, Ring Type Joint | Materials | carbon Steel,alloy Steel |
| Thickness | Customized | Technics | Froged |
| Production Process | Forging+heat treatment+rough machining | Features | High Strength|Resistant To Corrosion |
| Packge | Wooden Case or as customer's request | ||
| High Light | 20crni2mo forged flanges ，forged flanges high strength ，high strength open closed die forging | ||
42CrMo 20CrNi2Mo Custom Forged Steel Flanges High-Strength Design Applicable To Energy, Chemical Industry
We manufacture wind turbine main shafts using premium 42CrMo and 30CrNiMo8 alloy steels through open die forging. Designed to withstand high torque, axial loads, and long-term fatigue, our forged shafts deliver exceptional mechanical strength and reliability in harsh wind farm environments.
All forgings are available in custom lengths and diameters, support small-batch orders, and include full material certificates (EN10204 3.1/3.2). With in-house rough machining and strict quality control, we ensure each shaft meets your exact technical standards. Regular exports to Europe and Latin America available.
The 42CrMo ,20CrNi2Mo(raw materials can be customized as required) high-speed flange is specifically designed for use in high-performance mechanical systems such as gearboxes, turbines, and rotating equipment. Manufactured through precision open-die or closed-die forging processes, this flange ensures excellent fatigue resistance, mechanical strength, and dimensional stability under high-speed operation.
| Main Forging service Machine list: | sets | |
| Sample Inspection tester machines in the lab. | ||
| 1 | Spectrometer | 1 |
| 2 | Impact testing machine | 1 |
| 3 | Tensile testing machine | 1 |
| 4 | Metallographic microscope | 1 |
| 5 | Brinell hardness tester | 1 |
| 6 | Notch projector | 1 |
| 7 | Quenching test machine | 1 |
| 8 | high-precision flaw detector | 2 |
| Natural gas equipment | ||
| 1 | Natural gas furnace 15Ton | 6 |
| 2 | Natural gas furnace 20Ton | 1 |
| 3 | Natural gas furnace 30Ton | 3 |
| 4 | Natural gas furnace 40Ton | 1 |
| Sawing machine | 16 | |
| 5 | 5 Ton electro-hydraulic forging hammer | 1 |
| 6 | 8 Ton electro-hydraulic forging hammer | 1 |
| 7 | 12 Ton electro-hydraulic forging hammer | 1 |
| operation machine | ||
| 8 | 10 Ton loader machine | 1 |
| 9 | 15 Ton loader machine | 1 |
| 10 | 20 Ton Loader machine | 1 |
| Material carrier machine | ||
| 12 | 10 Ton material carrier | 1 |
| 13 | 20 Ton material carrier | 1 |
| 14 | Heat Treatment electric furnace 5Ton | 1 |
| 15 | Heat Treatment electric furnace 15Ton | 1 |
| 16 | Heat Treatment electric furnace 50Ton | 1 |
| 17 | Heat Treatment electric furnace 60Ton | 1 |
| 18 | Heat Treatment electric furnace 60Ton | 1 |
| 19 | horizontal lathe, vertical lathe,CNC vertical lathe,machining equipment | 31 |
| 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 | Transmission main shaft is used for driving force |
| Forging+heat treatment+rough machining+finish machining | |
| Forging ratio | ≥3 |
| Applicable standard | ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
| Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
| Delivery terms | Rough machining(N+T); finish machining(Q+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:
Used as a critical connection element in high-speed rotating systems, the flange transmits torque while maintaining alignment and structural integrity under demanding loads and continuous motion.
Specifications:
Dimensions: Fully customized based on client drawings
Weight Range: From 100 kg to 7 tons
Certifications: Material reports, dimensional inspection, and UT results available upon request
Competitive Advantages:
Manufactured from high-quality steel sourced from renowned mills
Excellent impact strength and fatigue performance for high-speed rotation
Customizable dimensions and heat treatment profiles
Strict quality control throughout the forging process
Proven reliability in heavy-duty industrial applications
Industrial applications:
We apply our years of experience and unique professionalism, taking into account the specific requirements of the market, to design and manufacture forged parts for all industrial sectors. This makes Tiangong Forging a leader in the forging industry and sincerely cooperates with leading companies in various industrial fields.
A. Wind power generation
B. Port heavy machinery
C. Mining
D. Ship building
E. Chemical industry
F. Petroleum industry
G. Metallurgy industry
H. Hydraulic industry
I. Other manufacturing industries of various industrial equipment, transmission gear box, parts and etc.
Process flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
Get in Touch for Custom Alloy Steel Forgings
Need high-quality forged parts in 42CrMo, 30CrNiMo8 or other alloy steels?
We support small batches, fast delivery, and export with full material certification.
Contact us now for a quick quote and reliable technical support.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1994
Total Annual:
27.5 million -28 million
Employee Number:
135~150
Ecer Certification：
Verified Supplier
About CHANGZHOU TIANGONG We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet ... About CHANGZHOU TIANGONG We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet ...
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