Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30days |
| Packaging Details | Pallet |
| Application | Wind power, port machinery, mining and oil extraction |
| Quality Control | Ultrasonic tested (UT) & Mechanical Properties |
| Material | Customized |
| Production Process | Forging |
| Hardness | Customized according to customer requirements |
| Surface Finish | Smooth |
| Heat Treatment | Annealing and tempering |
| Size | Customized according to drawings |
| Brand Name | Tiangong |
| 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 |
| Application | Wind power, port machinery, mining and oil extraction | Quality Control | Ultrasonic tested (UT) & Mechanical Properties |
| Material | Customized | Production Process | Forging |
| Hardness | Customized according to customer requirements | Surface Finish | Smooth |
| Heat Treatment | Annealing and tempering | Size | Customized according to drawings |
| Brand Name | Tiangong | Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China | ||
| High Light | Rough carbon forging steel blank ，35# carbon steel forging blank ，45# smooth forging steel blank | ||
Rough Forged Carbon Steel 35# / 45# Wheel Blank – OEM Manufacturer & Supplier
We supply rough forged wheel blanks made from premium 35# and 45# carbon steel, designed for high-performance applications in cranes, port equipment, railways, mining trucks, and heavy-duty industrial machinery. These forged blanks feature excellent strength, impact resistance, and weldability—ideal for further machining and heat treatment.
As an OEM forging supplier, we provide fully customized wheel blank solutions based on customer drawings and technical specifications. Our wheel forgings are produced under stringent quality control standards to ensure uniform grain flow, minimized internal defects, and dimensional consistency.
| Item | Details |
|---|---|
| Product Name | Rough Forged Carbon Steel 35# / 45# Wheel Blank – OEM Supplier |
| Material Grades | - High-strength carbon steels: 35# and 45# - Excellent wear resistance and good machinability - Suitable for impact-loaded and friction-prone wheel applications |
| Forging Equipment | - Hydraulic forging hammers: 5T / 8T / 12T - Optimized for solid wheel blanks and flanged wheel forgings - Ensures uniform deformation and enhanced grain flow |
| Manufacturing Process | Hot Forging → Normalizing (optional) → Rough Machining → Pre-machining / Heat Treatment → Dimensional Inspection |
| Forging Ratio | ≥ 3.0 — Promotes optimal metal flow from hub to rim, improving fatigue resistance and internal stress distribution |
| Applications | - Crane wheels, port machinery wheels, and mining transport wheels - Railway wheels and rolling mill drive wheels - Designed for cyclical loads, radial/axial forces, and rolling fatigue |
| Heat Treatment Options | - Normalized, or Quenched + Tempered as required - Optional stress-relief treatment before final machining |
| Testing & Inspection | - Chemical: Spectrometer alloy analysis - Mechanical: Hardness, tensile, impact testing - Ultrasonic: UT scanning focused on wheel hub integrity - Dimensional: OD, ID, thickness, run-out |
| Value-Added Services | - Custom diameter, hub, and rim profiles - Optional rough or pre-machining - Protective coating, export packaging, part labeling - OEM branding and marine shipment preparation available |
| Item | 35# Carbon Steel | 45# Carbon Steel |
|---|---|---|
| Steel Grade (GB Standard) | 35# (Equivalent to ASTM 1035) | 45# (Equivalent to ASTM 1045) |
| Carbon Content | Approx. 0.32–0.39% | Approx. 0.42–0.50% |
| Tensile Strength | 590–750 MPa (after heat treatment) | 600–800 MPa (after heat treatment) |
| Yield Strength | ≥ 305 MPa | ≥ 355 MPa |
| Hardness (HBW) | 170–207 (normalized) | 180–229 (normalized) |
| Toughness | Higher ductility, better impact resistance | Higher strength, slightly lower toughness |
| Weldability | Good | Moderate to good (preheat recommended) |
| Machinability | Excellent | Good to excellent |
| Heat Treatment Options | Annealed, Normalized | Normalized, Quenched + Tempered |
| Typical Applications | Gears, shafts, sleeves, flanges | Axles, crankshafts, forged wheels, spindles |
| Forging Suitability | Suitable for large, less-stressed forgings | Suitable for medium- to high-strength forged parts |
| Cost | Slightly lower | Slightly higher due to higher carbon content |
The steel forgings production flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
A wheel blank is a semi-finished forged component that serves as the raw form of an industrial wheel before final machining and assembly. Typically produced through hot forging, wheel blanks are designed to provide a strong and reliable base structure for cranes, mining trucks, port handling equipment, railcars, and other heavy-duty machinery.
High Structural Integrity: Forged wheel blanks have excellent grain flow and density, minimizing internal defects and enhancing load-bearing performance.
Customizable Geometry: Available in various diameters, hub designs, and flange profiles, tailored to fit different axle or track systems.
Excellent Wear & Impact Resistance: Ideal for rolling and rotating applications exposed to continuous friction, shock, or high dynamic loads.
Material Versatility: Commonly made from carbon steel (e.g., 35#, 45#) or alloy steels for improved strength and service life.
Solid Forged Wheel Blanks: Without bore, typically used in rough terrain vehicles or mining carts.
Flanged Wheel Blanks: With integrated or machined flanges, suitable for railway or crane tracks.
Hollow Hub Wheel Blanks: With pre-bored center holes for easier machining and axle installation.
Double-Rim or Wide-Profile Wheel Blanks: Designed for high-load equipment such as gantry cranes or rolling mills.
Excellent performance in shock load and rotating torque conditions
Enhanced wear resistance through carburized surface layer
Strong core ductility prevents cracking or brittle failure
Material allows tight dimensional tolerances for gear finishing
Available in custom sizes, one-off prototypes, or batch production
Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.
2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.
3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.
4. What is your production lead time?
With stock: Around 30 days
Without stock: 40–45 days
5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.
Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.
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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