42CrMo4 stress-relieved alloy steel forgings are engineered for demanding metallurgical machinery applications that require high tensile strength, toughness, and dimensional stability. These forgings are manufactured using open-die forging techniques and subjected to precision-controlled stress-relief heat treatment to minimize residual stress, distortion, and cracking during subsequent machining or service.
With excellent hardenability and fatigue resistance, 42CrMo4 alloy steel is well-suited for components exposed to high loads, fluctuating temperatures, and cyclic forces. These forgings are commonly used in rolling mill drive components, furnace lifting mechanisms, press columns, gear shafts, and other high-load bearing structures in the metallurgical industry.
Machined to customer specifications and rigorously inspected, our 42CrMo4 forgings offer enhanced internal soundness, grain refinement, and reliable performance in continuous-duty steelmaking and metal forming environments.
- High Strength & Toughness: Offers excellent load - bearing capacity and resists brittle fracture under complex stress.
- Good Wear Resistance: Reduces component wear in metallurgical processes, extending equipment life.
- Superb Fatigue Resistance: Withstands cyclic loads, preventing fatigue cracks.
- Easy Machinability: Can be formed into various shapes, providing good surface quality during processing.
- Effective Stress Relief: Minimizes residual stress, ensuring dimensional stability.
- Steelmaking: Used for furnace shells, trunnions in converters and electric arc furnaces.
- Continuous Casting: Applied in mold, vibration device and segment components.
- Steel Rolling: Ideal for mill housings, rolls and gear shafts in rolling mills.
- Metallurgical Cranes: Suitable for bridge, drum and hook parts to ensure safe heavy - lifting.
| Item | Details |
| Product Name | 42CrMo4 Stress-Relieved Alloy Steel Forgings for Metallurgical Equipment |
| Material Grades | - Primary alloy: 42CrMo4- High strength, excellent toughness, and superior wear resistance- Engineered for metallurgical equipment components under heavy loads and high stress |
| Forging Equipment | - Hydraulic hammers: 5T / 8T / 12T- Large open-die forging press with core boring capability- Near-net shape forging for components with complex geometries |
| Manufacturing Process | Hot Forging → Intermediate Heat Treatment → Optional Core Boring / Drilling →Rough / Semi-Finish Machining → UT & Dimensional Inspection |
| Forging Ratio | ≥ 3.0 — Promotes directional grain flow, ensuring excellent load-bearing capacity and fatigue resistance in metallurgical applications |
| Applications | - Components in steelmaking equipment: furnace shells, trunnions- Parts of continuous casting equipment: mold, vibration device- Elements of steel rolling equipment: mill housings, rolls- Components of metallurgical cranes: bridge, drum, hook |
| Heat Treatment Options | - Normalizing and tempering for enhanced mechanical properties- Stress relief treatment to ensure dimensional stability |
| Testing & Inspection | - Chemical: Spectrometer-controlled composition analysis- Mechanical: Hardness, tensile, yield, impact toughness- Ultrasonic (UT): Multi-angle flaw detection, including bore zone- Dimensional: Length, diameter, straightness, concentricity |
| Value-Added Services | - Custom geometries for specific metallurgical equipment needs- Pre-machined surfaces for easy integration into equipment- Laser part marking and full traceability |
The steel forgings production flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
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.
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