42CrMo4V Alloy Steel Forgings
- Material Composition: 42CrMo4V steel with enhanced chromium-molybdenum-vanadium properties for superior hardenability and fatigue resistance.
- Manufacturing Process: Electro Arc Furnace (EAF), Ladle Refining (LF), Vacuum Degassing (VD), and precision hot forging.
- Mechanical Performance: Excellent tensile strength, yield strength, and impact toughness for high-stress industrial environments.
- Surface Quality: Achieves a smooth finish with a surface roughness up to Ra 0.4 µm, ensuring precision fitting and minimal friction loss.
- Dimensional Accuracy: Tolerances held within ±0.01 mm through CNC-controlled machining and measurement.
Technical Specifications
| Parameter | Specification |
| Material Grade | 42CrMo4V Alloy Steel |
| Forging Type | Open Die / Closed Die / Free Forging |
| Diameter | 100 mm – 1,200 mm |
| Length | 200 mm – 3,000 mm |
| Weight Range | 20 kg – 2,500 kg |
| Process Route | EAF + LF + VD + Ingot + Hot Forged + Heat Treatment (Optional) |
| Tolerance | ±0.01 mm |
| Surface Roughness | Ra 0.8 – 3.2 μm |
| Delivery Time | 15–30 days (urgent), 30–45 days (normal) |
| Supply Capacity | 500–1000 tons/month |
| Reports | Material, Hardness, UT/MT, Dimensional, Mechanical Property |
| Certifications | ISO9001, PED, SGS |
Customization & OEM Service
- Production according to customer-supplied drawings or samples.
- Flexible forging shapes including shafts, rings, discs, and sleeves.
- Custom heat treatment and mechanical property targets available.
- Machining services: turning, boring, drilling, and surface finishing.
- Optional surface coatings or passivation treatments.
- OEM branding, packaging, and labeling support upon request.
Applications
| Industry | Application |
| Machinery & Metalworking | Shafts, rollers, gears, connecting rods |
| Power Generation | Turbine components, generator shafts |
| Pulp & Paper | Press rolls, bushings, spindle components |
| Food Processing | Rotating shafts, mixers, and extruder parts |
| General Industrial Equipment | Couplings, pump housings, flanges |
Manufacturing Capabilities
Forging Facilities
- 6300T / 3150T / 2000T free hydraulic presses.
- 5T, 3T, 2T, 1T, 750kg, 560kg electro-hydraulic hammers.
Heating Treatment Facilities
- RTX-9 series trolley furnaces in multiple sizes (5.5–8 m chamber length).
- RJ-9-850KW vertical furnace with 15 m depth.
- RTX-12-350KW high-temperature trolley furnace.
Machining Facilities
- CNC machines (max 32-ton load).
- Heavy-duty lathes and vertical mills (up to 70 tons).
- Gantry milling machines, deep-hole boring machines, grinding and turning centers.
Testing & Quality Control
- Spectrum analysis for chemical composition.
- Ultrasonic, non-destructive, and metallographic testing.
- Mechanical property test machines for yield, tensile, hardness.
Production Process
- Raw Material Selection: Use first-grade ingot steel, inspect chemical composition.
- Forging: Heat to precise temperature, perform open die or die forging.
- Heat Treatment: Quenching, tempering, or normalizing to meet mechanical targets.
- Machining: CNC turning, boring, milling, grinding, and drilling to precision ±0.01 mm.
- Inspection: Each shaft tested via 100% ultrasonic, hardness, and tensile checks.
- Packaging & Delivery: Anti-corrosion coating, safe transport packaging, global logistics support.
Additional Value-added Services
- Quench-and-temper heat treating
- Rough and finish turning
- Ultrasonic and mechanical testing
- Dimensional inspection reports
- Customized design and programming support
Quality Assurance
- Each forging carries a test bar for mechanical testing.
- 100% ultrasonic and visual inspection before shipment.
- Hardness, tensile, and metallographic verification.
- Compliance with ASTM, DIN, GB, and EN standards.
Why Choose Boberry

Integrated Production
Complete forging-to-machining production line ensures precision and fast delivery.

Advanced Equipment
Heavy-duty forging presses and CNC systems handle large, complex mechanical component geometries.

Certified Assurance
Certified production with ISO9001, PED, SGS compliance and global OEM support.
Logistics & Delivery
Lead Time: 15–30 days (urgent) / 30–45 days (normal).
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
