20MnV6 offers exceptional low-temperature toughness, high strength, and stable machinability for premium hydraulic honed tubes and chrome plated rods. EAST AI ensures batch consistency with Tier-1 steel, full-process QC, and 100% inspection.
Introduction
For hydraulic systems operating in low-temperature, heavy-duty, and high-fatigue environments, ordinary carbon steels often face risks of brittle fracture, dimensional instability, seal failure, and shortened service life.
20MnV6 is a high-performance micro-alloyed structural steel widely used in European and global high-end hydraulic systems. With optimized vanadium alloying and strict chemical control, it delivers an ideal balance of low-temperature toughness, high strength, weldability, and dimensional stability.
For mid-to-large stockists, equipment suppliers, and OEM manufacturers, choosing 20MnV6 means:
Stronger performance in low temperatures · Higher loading capacity · More consistent batches · Fewer after-sales failures
Key Properties of 20MnV6
Chemical Composition (Ref: EN 10083-3 / EAST AI Product Catalog)
| Element | Standard Range | Core Function |
| C | 0.17–0.24% | Low carbon ensures high toughness & reduces cold cracking |
| Mn | 1.30–1.60% | Improves strength, hardenability & grain refinement |
| V | 0.07–0.12% | Precipitation strengthening, boosts fatigue life |
| Si | 0.17–0.37% | Deoxidation & material purity |
| S / P | ≤0.035% | Minimizes impurities & prevents low-temperature brittleness |
Mechanical Properties
- Tensile Strength: ≥ 785 MPa
- Yield Strength: ≥ 590 MPa
- Elongation: ≥ 10%
- Impact Energy (–20°C): ≥ 55 J
- Excellent performance after induction hardening & chrome plating
Core Advantages
- Outstanding Low-Temperature Toughness Stable at –20°C to –40°C without brittle failure, far better than CK45 / C45.
- High Strength & High Ductility Strength close to 42CrMo with better toughness and welding performance.
- Ideal for Precision Machining & Coating Perfect for skiving, roller burnishing, honing, and hard chrome plating; strong coating adhesion; high dimensional consistency.
20MnV6 Applications in Hydraulic Components
1. 20MnV6 Honed Tube (Hydraulic Cylinder Tube)
- Standards: DIN2391, EN10305, ASTM A519, GB/T3639
- ID Tolerance: H8 / H9
- Surface Roughness: Ra 0.4–0.8 μm
- Straightness: 0.2–0.5 mm/m
- Key Benefits:
- Stable dimensions even in low-temperature environments
- Excellent inner surface for better sealing & less leakage
- High fatigue resistance for long-stroke & high-pressure cylinders
Recommended Scenarios
Cold-region engineering machinery · Wind power hydraulics · Mining equipment · Cold storage facilities · Aerial work platforms
Why Choose EAST AI 20MnV6 Hydraulic Parts
At EAST AI, our strategic positioning is Batch-to-Batch Consistency, Piece-by-Piece Perfection.
1. Raw Material From Tier-1 Steel Mills
Stable chemical & mechanical properties with minimal batch variation.
2. Full Process Quality Control
In-line inspection for every process:
- Skiving & roller burnishing
- Honing, straightening, polishing
- Automatic chrome plating
- Heat treatment & precision finishing
3. 100% Full Inspection Before Shipment
Each piece is tested for:
- Dimensional accuracy
- Straightness & roughness
- Hardness & coating thickness
- Ultrasonic & salt spray test
We provide traceable material reports and complete inspection records to support mid-to-large high-end stockists, service providers, and equipment manufacturers worldwide.
Conclusion
20MnV6 is not just an ordinary steel grade — it is a high-performance material engineered for low-temperature, high-load, high-precision hydraulic applications.
Selecting the right material improves cylinder reliability, extends equipment service life, and stabilizes your supply chain.
EAST AI focuses on high-quality hydraulic components including honed tubes, chrome plated rods, and hydraulic cylinders. With premium raw materials, strict process control, and 100% full inspection, we deliver consistent, reliable solutions for global high-end customers.
