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Common size on stock, Special sizes needs new production.Can cut to Size, Cut to Shape.
EMERSONMETAL
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Superior Mechanical Performance: The Q&T treatment imparts a tensile strength of 1000-1200 MPa and yield strength of ≥800 MPa, enabling the material to withstand heavy loads and dynamic stress without deformation.
Optimized Hardness & Toughness: With a standard hardness of 28-32 HRC (customizable up to 45 HRC), the steel balances wear resistance with impact toughness, preventing brittle failure in high-stress environments.
Precision Machining: Our shafts and rods undergo CNC turning, grinding, and polishing, achieving tight tolerances (±0.01mm) and a bright surface finish (Ra 0.8-1.6μm) that minimizes friction and improves operational efficiency.
Versatile Compatibility: Suitable for welding, forging, and secondary machining, allowing seamless integration into custom assemblies such as hydraulic cylinders, gear shafts, and structural components.
| Parameter | Details |
|---|---|
| Material Grade | 42CrMo (Equivalent to AISI 4140, DIN 1.7225, JIS SCM440) |
| Chemical Composition | C: 0.38-0.45%, Si: 0.17-0.37%, Mn: 0.50-0.80%, Cr: 0.90-1.20%, Mo: 0.15-0.25% |
| Heat Treatment | Quenched (water/oil cooling) + Tempered (air cooling) |
| Hardness | 28-32 HRC (standard); 20-45 HRC (customizable) |
| Tensile Strength | 1000-1200 MPa |
| Yield Strength | ≥800 MPa |
| Elongation | ≥12% |
| Surface Finish | Bright (polished), Ra 0.8-1.6μm; optional chrome plating/black oxide |
| Dimensional Range | Shafts: Diameter 10-500mm, Length 100-6000mm |
| Bars/Rods: Round (10-600mm), Square (10-300mm), Hexagonal (10-200mm) | |
| Tolerance | ±0.01mm (diameter); ±0.1mm/m (straightness) |
| Certification | ISO 9001, GB/T 3077-2015, ASTM A29/A29M, DIN EN 10083-3 |
Automotive Industry: Drive shafts, crankshafts, and suspension components requiring high fatigue resistance.
Heavy Machinery: Hydraulic cylinder rods, excavator pivot shafts, and press machine parts.
Energy Sector: Turbine shafts, power transmission gears, and oil drilling equipment.
Aerospace & Defense: Structural components and landing gear parts demanding precision and reliability.
General Engineering: Bolts, nuts, and structural bars for construction and manufacturing machinery.
Raw Material Inspection: Each batch of 42CrMo steel is tested for chemical composition and initial mechanical properties using spectrometry and tensile testing.
Precision Heat Treatment: Computer-controlled furnaces ensure uniform quenching and tempering, with real-time monitoring of temperature and cooling rates.
Advanced Machining: CNC turning centers and grinding machines deliver consistent dimensional accuracy, verified by coordinate measuring machines (CMM).
Surface Testing: Surface roughness and finish are inspected using profilometers to ensure compliance with Ra standards.
Traceability: Comprehensive documentation tracks each product from raw material to delivery, with optional 3.1 material certificates available.
Size Customization: Non-standard diameters, lengths, and shapes (e.g., stepped shafts, keyways, flanges).
Heat Treatment Adjustment: Hardness tuning to match application needs (e.g., 20-25 HRC for enhanced machinability, 40-45 HRC for high wear resistance).
Surface Treatments: Chrome plating (0.01-0.1mm thickness) for corrosion resistance, black oxide for aesthetic appeal, or phosphating for lubrication.
Packaging Options: Anti-rust oil coating, wooden crates, or palletized packaging to ensure safe transportation.
Cost-Effective Solutions: Optimized production processes reduce material waste and lead times, offering competitive pricing without compromising quality.
Technical Support: Our engineering team provides guidance on material selection, heat treatment, and machining parameters to maximize performance.
Global Supply Chain: Efficient logistics network ensures timely delivery to markets in North America, Europe, Asia, and the Middle East.
