Customized 42CrMo4 SCM440 1.7225 AISI4140 Forged Round Bar With QT
Customized 42CrMo4 / SCM440 / 1.7225 / AISI 4140 Forged Round Bar with QT – Fast Delivery & Global Export
We manufacture customized forged round bars using premium alloy steel grades such as 42CrMo4, SCM440, 1.7225, and AISI 4140, all available with quenching and tempering (QT) heat treatment.
Our products meet both EN (European) and ASTM (American) standards and are suitable for export to Europe, North America, and other global markets.
With years of experience supplying industrial gearboxes, port machinery, wind power components, and heavy-duty equipment, we understand the quality and performance expectations of international customers. We offer short lead times, strict quality control (UT, hardness, dimensions), and 3.1 MTC certification upon request.
Our forged bars feature excellent toughness, high strength, and good machinability, making them ideal for demanding engineering applications. Whether you need raw forged bars or rough-machined blanks, we can deliver cost-effective solutions with reliable quality.
Our Machined Carbon Steel Coupling Forgings are engineered for precision fit and robust torque transmission in demanding hydraulic drive assemblies. Manufactured from high-quality medium to high carbon steel, these coupling components offer outstanding mechanical strength, machinability, and dimensional stability under fluctuating load conditions.
Through advanced open die forging techniques, each coupling blank achieves refined grain structure and directional fiber flow, ensuring superior fatigue resistance and structural integrity. Post-forging machining guarantees tight tolerances and surface finish required for seamless integration into rotating hydraulic systems.
Key Features:
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Material Strength: Made from medium/high-carbon steel, optimized for load-bearing and shock absorption.
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Precision Machining: CNC-finished to meet close dimensional tolerances and surface flatness.
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Durability: High wear and fatigue resistance for extended service life under cyclic torsion.
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Custom Configurations: Available in various sizes and keyway profiles based on customer specifications.
Application Fields:
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Hydraulic pump-to-motor shaft couplings
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Power transfer assemblies in mobile hydraulic systems
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Construction machinery, mining conveyors, and press equipment
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Any high-torque system requiring stable and aligned rotational connection
| Item | Details |
|---|---|
| Product Name | Machined Carbon Steel Coupling Forgings for Hydraulic Drive Assemblies |
| Material Grades | - Medium/high-carbon steels engineered for structural strength - Customized compositions for high-torque hydraulic systems |
| Forging Equipment | - Hydraulic Presses: 5T, 8T, 12T - Capable of open die forging coupling blanks with directional grain flow |
| Manufacturing Process | Raw Material Inspection → Preheating → Open Die Forging → Heat Treatment → Rough Machining → Non-Destructive Testing → Final Machining (if required) → Dimensional Inspection → Packaging |
| Forging Ratio | ≥ 3.0 — Ensures internal soundness and enhanced fatigue resistance for power transmission under cyclic pressure |
| Applications | - Shaft-to-pump couplings in hydraulic drive units - Precision-fit couplings for mobile machinery - Power transmission systems in press equipment and mining hydraulics |
| Delivery Conditions | - Delivered in heat-treated and machined condition - Optional: As-forged, semi-machined, or stress-relieved per customer request |
| Testing & Inspection | - Chemical Analysis (Optical Spectrometry) - Mechanical Testing: Tensile, Hardness - Non-Destructive Testing: Ultrasonic Testing (UT), Magnetic Particle Testing (MT) - Dimensional inspection |
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.