X45CrMoV15 Stainless Steel Sheet,Plate,for medical instruments

X45CrMoV15 Stainless Steel Sheet/Plate for medical instruments Product Information -:- For detailed product information, please contact sales. -: X45CrMoV15 Stainless Steel Sheet/Plate for medical instruments Synonyms -:- For detailed product information, please contact sales. -:

X45CrMoV15 Stainless Steel for medical instruments Product Information -:- For detailed product information, please contact sales. -: # X45CrMoV15 Stainless Steel for Medical Instruments ## Overview X45CrMoV15 is a high-carbon martensitic stainless steel with enhanced properties, specifically designed for applications requiring superior edge retention, wear resistance, and corrosion resistance. It is a premium material often used for high-performance surgical cutting instruments that undergo frequent and demanding use. The addition of Molybdenum and Vanadium improves its hardness, toughness, and resistance to tempering during sterilization. ## International Standards - **ISO 7153-1:** Surgical instruments – Materials – Part 1: Metals - **EN ISO 15156-1 / ASTM A895:** (Relevant standards for high-carbon, high-chromium steels) - **EN 10088-3:** Stainless steels – Part 3: Technical delivery conditions - **Common Designations:** - **DIN / EN:** 1.4112 (Common European designation) - **Similar to:** AISI 440C / UNS S44004 (but with Vanadium addition) - **FDA/USP Class VI:** Often tested and certified for biocompatibility for medical device applications. ## Chemical Composition (Typical, % by weight) | Element | Content (%) | |---------|-------------| | Carbon (C) | 0.43–0.50 | | Chromium (Cr) | 14.0–15.0 | | Molybdenum (Mo) | 0.50–0.80 | | Vanadium (V) | 0.10–0.20 | | Silicon (Si) | ≤ 1.00 | | Manganese (Mn) | ≤ 1.00 | | Phosphorus (P) | ≤ 0.040 | | Sulfur (S) | ≤ 0.030 | | Iron (Fe) | Balance | **Key Alloying Effects:** - **Carbon (C):** Provides high hardness and wear resistance. - **Chromium (Cr):** Ensures corrosion resistance and hardenability. - **Molybdenum (Mo):** Enhances strength, hardenability, and resistance to pitting corrosion. - **Vanadium (V):** Refines grain structure, increases toughness, and improves wear resistance. ## Physical Properties (Annealed Condition) | Property | Value | |----------|-------| | Density | ~7.78 g/cm³ | | Melting Point | ~1420–1460 °C | | Thermal Conductivity | ~25 W/m·K (at 20°C) | | Electrical Resistivity | ~0.60 µΩ·m | | Modulus of Elasticity | 215 GPa | | Magnetic Properties | Magnetic (martensitic) | ## Mechanical Properties (After Optimum Hardening and Tempering) | Property | Value | |----------|-------| | Tensile Strength | 900–1200 MPa | | Yield Strength (0.2% offset) | ≥ 700 MPa | | Elongation at Break | ~10–15% | | Hardness (Rockwell C) | **54–58 HRC** (typical target for cutting edges) | | Impact Toughness | Moderate; optimized by heat treatment. | ## Heat Treatment - **Soft Annealing:** Heat to 800–850°C, slow cool to approx. 600°C, then air cool. Achieves ~250 HB for machinability. - **Hardening:** Austenitize at **1020–1070°C** (precise temperature is critical), followed by **oil quenching** or high-pressure gas quenching under vacuum. - **Tempering:** Typically double or triple tempered at **150–400°C** (commonly at 180–250°C for medical instruments). This relieves stresses and achieves the target hardness and stability. - **Cryogenic Treatment:** Often applied between quenching and tempering to maximize transformation to martensite, increase dimensional stability, and enhance wear resistance. ## Product Applications in the Medical Field X45CrMoV15 is specified for high-end, precision surgical instruments where exceptional performance is critical: - **High-Performance Surgical Blades:** Scalpels, microsurgical blades, dermatomes. - **Ophthalmic & Neurosurgical Instruments:** Extremely fine and sharp tools requiring lasting edge integrity. - **Orthopedic Cutting Tools:** Bone saw blades, osteotomes, reamers. - **Dental Surgical Instruments:** Surgical burs, periodontal knives, extraction tools. - **Reusable Critical Cutting Instruments:** Where repeated sharpening and autoclaving are required without loss of performance. - **Biopsy Punches & Needles.** ## Corrosion Resistance Superior to X40Cr13 due to higher Chromium and Molybdenum content. - Excellent resistance to: - Atmospheric corrosion - Body fluids, alcohols, and disinfectants - Repeated steam sterilization (autoclaving) - Good resistance to pitting and crevice corrosion in chloride environments compared to standard martensitic grades. - **Passivation:** Essential after final machining/grinding to maximize the passive chromium oxide layer. ## Machinability and Fabrication - **Machinability:** Fair to poor in the annealed condition. Requires appropriate tools (carbide recommended), speeds, and coolants. - **Grindability:** Can be ground to very fine finishes and sharp edges, which is crucial for surgical tools. - **Forging:** Possible within a narrow temperature range (1050–1100°C start, finish above 850°C), followed by annealing. - **Welding:** Not generally recommended for finished instruments due to risk of cracking and property degradation. Welding requires pre-heating and post-weld heat treatment. ## Advantages for Medical Use 1. **Superior Edge Retention:** Maintains sharpness significantly longer than standard martensitic steels (e.g., X40Cr13), reducing the frequency of sharpening. 2. **High Wear Resistance:** Ideal for instruments that contact hard tissues like bone or enamel. 3. **Enhanced Corrosion Resistance:** Molybdenum addition provides better performance in harsh/stressful environments. 4. **Good Combination of Hardness and Toughness:** The Vanadium addition allows for high hardness without excessive brittleness. 5. **Sterilization Stability:** Resists softening during repeated high-temperature autoclave cycles when properly tempered. ## Quality Assurance & Biocompatibility - Material must be supplied with full traceability and certified to relevant standards (e.g., EN 10204 3.1 Material Certificate). - Micro-cleanliness (low sulfur, controlled inclusions) is critical for fatigue resistance and corrosion performance. - For instruments contacting human tissue, the final product often requires validation of biocompatibility per ISO 10993 or FDA guidelines. - Surface finish (often a high polish or electropolish) is critical to minimize bacterial adhesion and facilitate cleaning. ## Conclusion X45CrMoV15 (1.4112) represents a premium grade of martensitic stainless steel engineered for the most demanding medical cutting applications. Its optimized chemistry, centered around high carbon, chromium, molybdenum, and vanadium, delivers an outstanding balance of extreme hardness, exceptional wear resistance, and good corrosion stability. While more challenging to process and more expensive than standard grades like X40Cr13, its performance justifies its use in critical, high-value surgical instruments where precision, longevity, and reliability are paramount. It is the material of choice for tools that must withstand the dual challenges of cutting hard biological tissues and enduring hundreds of sterilization cycles without degradation. -:- For detailed product information, please contact sales. -: X45CrMoV15 Stainless Steel for medical instruments Specification Dimensions Size： Diameter 20-1000 mm Length <7406 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: X45CrMoV15 Stainless Steel for medical instruments Properties -:- For detailed product information, please contact sales. -:

Applications of X45CrMoV15 Stainless Steel Sheet,Plate for medical instruments -:- For detailed product information, please contact sales. -: Chemical Identifiers X45CrMoV15 Stainless Steel Sheet,Plate for medical instruments -:- For detailed product information, please contact sales. -:

Packing of X45CrMoV15 Stainless Steel Sheet/Plate for medical instruments -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Sheet/Plate drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3877 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition