Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30days |
| Packaging Details | Pallet |
| Size | Leave allowance according to the drawing |
| Application | Offshore Drilling Platform Structures |
| Section shape | Accept customization or according to drawings |
| Material | Chinese brand |
| Surface | Anti-rust oil |
| Utstandard | Customizable |
| Oem/Odm | Yes |
| Color | Original |
| Brand Name | Tiangong |
| Model Number | TG-191 |
| Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 56000 Tons per year |
| Delivery Time | 30days | Packaging Details | Pallet |
| Size | Leave allowance according to the drawing | Application | Offshore Drilling Platform Structures |
| Section shape | Accept customization or according to drawings | Material | Chinese brand |
| Surface | Anti-rust oil | Utstandard | Customizable |
| Oem/Odm | Yes | Color | Original |
| Brand Name | Tiangong | Model Number | TG-191 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | forged steel blocks for offshore drilling ，heavy-section forged steel blocks ，offshore platform forged steel blocks | ||
Heavy-Section Forged Steel Blocks for Offshore Drilling Platform Structures
Heavy-section forged steel blocks are specifically designed for the demanding structural requirements of offshore drilling platforms. Manufactured from high-strength alloy steels such as 42CrMo4, 30CrNiMo8, and 35CrMo, these blocks undergo precision forging and heat treatment to achieve superior toughness, impact resistance, and fatigue strength.
Key Features:
Exceptional structural integrity and high load-bearing capacity for critical platform components.
Superior resistance to fatigue, cracking, and deformation under dynamic offshore conditions.
Precision forging and controlled heat treatment ensure uniform material properties throughout the block.
Large-section capability to accommodate heavy-duty applications in harsh marine environments.
Applications:
These forged steel blocks are widely used in offshore drilling platform structures, including jacket bases, leg reinforcements, deck support beams, and other critical load-bearing components. Their robustness and reliability ensure safe and long-lasting performance in extreme marine and offshore operating conditions.
| Item | Details (Heavy-Section Forged Steel Blocks – Offshore Drilling Platforms) |
|---|---|
| Product Name | Heavy-Section Forged Steel Block for Offshore Drilling Platform Structural Components |
| Material Grade | - 42CrMo, 30CrNiMo8, or 35CrMo alloy steels – optimized for high strength, toughness, and excellent fatigue resistance under dynamic offshore loading |
| Forging Equipment | - Hydraulic Open Die Presses: 5T / 8T / 12T – Capable of forging large-section steel blocks with uniform internal structure and directional grain flow |
| Forging Ratio | ≥ 3.5 – Ensures optimal grain alignment, internal soundness, and improved resistance to cyclic and impact loads typical of offshore operations |
| Manufacturing Process | Raw Material Inspection → Preheating → Open Die Forging → Heat Treatment (Quenching + Tempering) → Rough Machining → Non-Destructive Testing → Optional Final Machining → Dimensional Inspection → Protective Packaging |
| Delivery Conditions | - Standard: Quenched and Tempered for maximum load-bearing capacity and toughness - Optional: Normalized or Semi-Machined for specific assembly requirements |
| Applications | - Jacket bases and leg reinforcements of offshore drilling platforms - Deck support beams and critical structural blocks - Heavy-duty transmission and mounting structures in marine equipment |
| Testing & Inspection | - Chemical Composition: Optical Emission Spectrometry - Mechanical Properties: Tensile Strength, Hardness, Impact Toughness - Non-Destructive Testing: Ultrasonic Testing (UT), Magnetic Particle Testing (MT) - Dimensional Inspection: Full-scale measurements with calibrated gauges to ensure precision and compliance with offshore standards |
The steel forgings production flow:
Incoming material check → unloading and handling → surface and dimensional assessment → preheating to forging temperature → precision forging → quenching and tempering → intermediate quality inspection → rough machining → NDT evaluation → final dimensional verification → secure packaging → delivery to client.
Frequently Asked Questions (FAQs)
1. What is the typical weight range for your forged components?
We manufacture forged parts from 100 kilograms up to 7,000 kilograms, suitable for both medium-sized and large-scale industrial applications.
2. Do you handle heat treatment and machining internally?
Yes. All heat treatment and machining processes are carried out in-house, including rough machining and precision finishing, ensuring parts meet exact customer specifications.
3. Which sectors commonly use your forgings?
Our forged products are utilized in wind energy, heavy machinery, port and material handling equipment, power transmission systems, and various other industrial applications.
4. What are your standard production lead times?
Stocked items: Approximately 30 days
Custom or non-stocked parts: Typically 40–45 days, depending on size, material, and complexity
5. Where is your manufacturing facility situated?
Our plant is located in Changzhou City, Jiangsu Province, conveniently near Shanghai, with exports efficiently handled via Shanghai Port.
Request a Quote
Please share your drawings and detailed requirements with us. Our engineering team will carefully evaluate them and provide a professional quotation and tailored solution promptly.
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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