Product Introduction
Zhejiang Jinyuan Hanli Saws Co., Ltd., as a leading domestic manufacturer of precision special steel strips, leverages advanced production equipment, stringent quality control, and a diverse selection of materials to provide high-precision, high-performance steel strips for high-end manufacturing. With the philosophy of "Excellence stems from professionalism," the company has become a reliable partner in precision manufacturing, serving critical industries such as cutting tools, automotive components, and medical devices.
Diverse High-Quality Materials for All Application Scenarios
Precision special steel strips encompass a variety of high-performance specialty steels, achieving differentiated mechanical properties through precise alloy formulations to meet stringent industry demands for strength, wear resistance, and corrosion resistance:
High-Speed Tool Steel Series
Represented by M2 (W6Mo5Cr4V2) and M42 (W2Mo9Cr4VCo8), these steels contain key alloying elements such as tungsten (5.50–19.0%), molybdenum (4.50–10.0%), and cobalt (7.75–8.75%). After heat treatment, hardness reaches 62–65 HRC, with exceptional red hardness-maintaining ≥58 HRC even after 4 hours at 550°C, far exceeding ordinary steels. Ideal for high-speed cutting tools and saw blades, these materials extend service life by 3x compared to conventional options.
Stainless Steel Series
Including 95Cr18 (440C) and 95Cr18Mo, these steels feature high chromium content and refined smelting processes, delivering outstanding corrosion resistance. A surface finish of Ra ≤0.4μm makes them suitable for medical devices and food-grade equipment.
Alloy Structural & Tool Steels
Examples like Cr12MoV (D2) and GCr15 contain 1.45–1.70% carbon, enhanced with chromium and molybdenum for 3–5x higher wear resistance than standard steels, while maintaining excellent toughness (impact energy ≥25J). Used in automotive wear-resistant parts and precision molds, GCr15 strips for piston rings in steering pumps show no significant wear after 100,000 km.
Special Functional Steels
1.Premium powder steels like ASP2030/2060 employ powder metallurgy for ultra-low impurities (P, S ≤0.03%) and fine grain structure (≤5μm), achieving tensile strength up to 2100 N/mm². These are ideal for aerospace transmission components requiring stability in extreme conditions.
2. Micron-Level Precision Control, Exceeding Industry Standards
The "precision" core of these steel strips lies in rigorous dimensional and performance control, surpassing ordinary cold-rolled strips to provide "zero-allowance" processing foundations:
- Dimensional Tolerances
- Thickness: Ranges from 0.5–5.0mm, with ±0.02mm for 0.9–2.5mm strips and ±0.06mm for 2.5–5.0mm. Ultra-thin strips (≤0.3mm) achieve ±0.005mm, ensuring micro-scale accuracy for electronics.
- Width: Adjustable from 6–15mm, with ±0.03mm for 6–15mm narrow strips and ±0.05mm for 10–30mm wide strips.
- Straightness: Cut-to-length strips (1000–4000mm) maintain ≤0.5mm/m, while coiled strips achieve ≤2mm/m, reducing assembly errors. One automation equipment manufacturer reported 40% higher assembly efficiency for guide rails.
- Surface & Internal Quality
- 2B finish (Ra ≤0.4μm), free from delamination, rust, or cracks.
- Ultrasonic testing (Grade I) ensures internal integrity, with decarburization ≤0.03mm for uniform mechanical properties.
二,Specifications & Supply Capabilities: Flexible Customization
1. Full-Spec Coverage:
Thickness: 0.05mm (ultra-thin) – 6.00mm (medium-thick); 0.05–1.2mm for electronics/medical, 2.5–5.0mm for tools/auto parts.
Width: 6mm (narrow) – 1500mm (wide).
Forms: Coils (20–300kg), cut-to-length (1000–4000mm), blanks; supports edge rounding (R≤0.2–0.3mm) and deburring.
2. Custom Services:
Material: Adjust alloy ratios (e.g., higher vanadium for wear resistance).
Dimensions: MOQ 1 ton; non-standard thickness (e.g., 0.08mm) or width (e.g., 8mm); length tolerance ±0.05mm.
Processing: Heat treatment (tempering, annealing), cryogenic treatment (-50°C)
三,Production Process and Quality Control: Comprehensive Reliability Assurance
1. Advanced Equipment and Process System
The company boasts an integrated production chain, ensuring end-to-end control from steel billets to finished products:
Key Equipment: Includes high-capacity hot rolling lines, multi-roll cold rolling lines, forming roll lines, and surface cleaning treatment lines, complemented by vacuum annealing furnaces (temperature control accuracy ±1°C) and straightening/cutting equipment to guarantee rolling precision and performance stability.
Core Processes:
Material Selection: High-purity steel billets sourced from top-tier suppliers such as Erasteel, AnGang, HeYe, DongBei, and TSINGSHAN, with harmful elements (P, S) ≤0.03%;
2. Multi-pass Rolling: Achieves "cold rolling + annealing" cycles through full cold rolling lines and vacuum annealing furnaces, refining grain structure and increasing strength by 30%;
3. Precision Testing: Each process is equipped with metallographic microscopes (for grain structure analysis), roughness testers, and hardness testers (Rockwell/Vickers) to ensure parameter compliance.
2. Rigorous Quality Control and Certification System
Standard Compliance: Products meet national standards such as GB/T9941-2009 and GB/T1220-2007, and are certified with ISO9001 and IATF16949 (automotive industry), fulfilling high-end quality requirements.
Full-process Traceability: Each batch carries a unique identifier, enabling traceability from "billet furnace number – rolling parameters – testing data" and supporting reverse tracking from downstream products to production stages for quality issue resolution.
Application Fields: From Basic Industry to High-end Manufacturing
Precision special steel strips, with their "high precision + high performance" advantages, are deeply integrated into core sectors:
(1)Cutting Tools & Blades: M2 and M42 strips are used for band saws and circular saw blades, suitable for metal cutting and reducing blade replacement frequency by 60%
(2)Automotive Parts: M2 strips for automotive steering pump blades meet high-load and high-frequency operational demands;
(3)Medical Devices: 440C strips for surgical blades and infusion set components offer excellent corrosion resistance and biocompatibility, passing medical-grade certifications
(4)Automation & Precision Machinery: Spring steel strips for conveyor tension springs and precision strips for sensor shims ensure operational accuracy, reducing failure rates by 35% in automated production lines
(5)High-end Equipment: Powder steel ASP2060 strips for aerospace engine connectors maintain stable performance in extreme conditions (-50°C to 150°C).
Delivery & Service: Efficient Response to Customer Needs
Supply Conditions: Available in annealed, tempered, cold-rolled states, etc.
Inventory Stock: Regular specifications are kept in stock.
After-sales Support: Material certifications and test reports are provided
- About Hanli
Zhejiang Jinyun Hanli Saws Co., Ltd. is located in Lishui City, Zhejiang Province, with beautiful mountains and clear waters. It mainly produces high-speed steel circular saw blades, gear grinders, as well as special steel components such as air conditioning compressors, automotive core components, and steering pumps. Our products are exported to over 40countries overseas.
The company has established its own research and development system, possesses 15 patented technologies, and has been awarded the titles of Provincial High-tech Enterprise, Provincial Science and Technology Enterprise, and Top 50 County Ecological Industry
As a national high-tech enterprise and a specialized and innovative small and medium-sized enterprise, Hanli Sawing Industry has established an enterprise research institute and a doctoral innovation station. It has 2 elite talents from Lishui Green Valley and 1 "Double Hundred Double Entry" PhD. Hanli Sawing Industry has long-term cooperative relationships with scientific research institutions such as Zhejiang Metallurgical Research Institute and Baosteel Central Research Institute.
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