X15Cr13 Stainless Steel Sheet,Plate,for medical instruments

X15Cr13 Stainless Steel Sheet/Plate for medical instruments Product Information -:- For detailed product information, please contact sales. -: X15Cr13 Stainless Steel Sheet/Plate for medical instruments Synonyms -:- For detailed product information, please contact sales. -:

X15Cr13 Stainless Steel for medical instruments Product Information -:- For detailed product information, please contact sales. -: ### **Product Name:** X15Cr13 Stainless Steel for Medical Instruments **Classification:** High-Carbon Martensitic Stainless Steel (Premium Instrument Grade) --- ### **1. Overview** X15Cr13 is a **high-carbon martensitic stainless steel** specifically refined for the manufacture of premium medical, dental, and surgical instruments that demand superior **edge retention, wear resistance, and hardness**. As a higher-carbon variant of the standard X10Cr13/410 series, it offers enhanced capability to achieve and maintain a higher hardness level after heat treatment. This grade represents a classic "cutlery steel" chemistry optimized for instrument applications where sharpness, durability, and precision are paramount for reusable tools subjected to repeated sterilization cycles. ### **2. Chemical Composition (Weight %, according to EN 10088-3)** Composition is precisely controlled to maximize hardenability and carbide formation while maintaining polishability. | Element | Minimum (%) | Maximum (%) | Notes | |---------|------------|------------|-------| | **Carbon (C)** | 0.13 | 0.20 | **The key differentiator from X10Cr13.** Higher carbon content enables higher attainable hardness and greater carbide volume, directly improving edge retention and wear resistance. | | **Chromium (Cr)** | 12.0 | 14.0 | Provides the fundamental corrosion resistance for a stainless steel. The 13% level offers good resistance to sterilization, cleaning agents, and bodily fluids but is not for implant use. | | **Silicon (Si)** | ≤ 1.00 | | Deoxidizer; contributes to strength. | | **Manganese (Mn)** | ≤ 1.00 | | Aids in deoxidation and hot workability. | | **Phosphorus (P)** | ≤ 0.040 | | Impurity, kept low. | | **Sulfur (S)** | ≤ 0.015 (often ≤ 0.003 for medical) | | Impurity. Very low levels are specified for medical grades to improve polishability and reduce inclusions. | | **Molybdenum (Mo)** | *Optional/Trace* | | Not standard in the basic grade, but may be present in modified versions for enhanced properties. | | **Iron (Fe)** | Balance | | | **Key Feature:** The elevated carbon content (0.13-0.20% vs. 0.08-0.15% in X10Cr13) is the primary factor enabling higher as-quenched hardness and better wear performance. ### **3. Physical & Mechanical Properties** *Properties are highly dependent on the precise hardening and tempering process.* **Typical Heat Treatment:** * **Annealed Condition:** ~ 200 HB (for machining/forming) * **Hardening:** Austenitize at **1000-1050°C**, followed by oil quenching or air cooling. * **Tempering:** Performed between **200-400°C** to achieve the optimal balance of hardness and toughness for the specific instrument. **Mechanical Properties (After Hardening & Tempering):** * **Tensile Strength (Rm):** 850 - 1100 MPa * **Yield Strength (Rp0.2):** 650 - 900 MPa * **Elongation (A):** 8% - 12% * **Hardness Range (typical after HT):** * **Critical Cutting Edges (Scalpels, Micro-scissors):** **54 - 60 HRC** (Can achieve the upper end of this range more reliably than X10Cr13) * **Heavy-Duty Cutting & Gripping (Bone cutters, needle holders):** 48 - 54 HRC * **General Purpose Instruments:** 45 - 50 HRC * **Modulus of Elasticity:** ~215 GPa **Physical Properties (Typical):** * **Density:** 7.7 g/cm³ * **Thermal Conductivity:** ~24 W/m·K * **Coefficient of Thermal Expansion:** 10.5 x 10⁻⁶ /K (20-100°C) * **Magnetic:** **Yes.** Fully magnetic due to its martensitic structure. ### **4. Key Characteristics** * **Superior Edge Retention & Hardness:** The higher carbon content allows the formation of more martensite and harder carbides, resulting in sharper, longer-lasting cutting edges that require less frequent re-sharpening. * **Enhanced Wear Resistance:** Improved resistance to abrasive wear compared to lower-carbon martensitic grades, beneficial for instruments like bone rasps, reamers, or those contacting hard tissues. * **Good Corrosion Resistance:** Suitable for repeated sterilization (autoclaving, chemical disinfection) and exposure to organic fluids. Not for permanent implantation or constant saline immersion. * **Excellent Polishability:** Capable of achieving a high-luster, mirror-like finish, which reduces tissue adhesion and facilitates cleaning. * **High Strength & Stiffness:** Provides the necessary rigidity for precision surgical tools. * **Slightly Reduced Toughness:** Compared to X10Cr13 at the same hardness level, the higher carbon content can marginally decrease toughness/ductility, a trade-off managed through proper tempering. ### **5. Product Applications** X15Cr13 is selected for high-performance, reusable surgical and dental instruments where edge durability is critical: * **Premium Surgical Blades & Scalpels:** Where maximum sharpness and edge longevity are required. * **Microsurgical Scissors & Forceps:** For ophthalmic, neurosurgical, or plastic surgery. * **Orthopedic Cutting Instruments:** Osteotomes, bone chisels, saw blades. * **Dental Surgical Instruments:** Scalers, curettes, elevators, extraction forceps. * **High-Quality Dissecting Scissors & Needle Holders.** * **Veterinary Surgical Instruments.** ### **6. International Standards & Specifications** | Region/System | Standard & Designation | Scope / Notes | |---------------|----------------------|---------------| | **European (EN)** | **EN ISO 7153-1** | Primary standard for materials for surgical instruments. Lists martensitic steels with specified properties; X15Cr13 chemistry falls within the scope for high-carbon variants. | | **European (EN)** | **EN 10088-3** | Technical delivery conditions for stainless steels. The grade is conceptually aligned with higher-carbon variants of **1.4021** or similar designations, though exact numbering may vary by supplier. | | **ISO** | **ISO 7153-1** | Identical to EN ISO 7153-1. | | **USA / ASTM** | **ASTM A582 (Type 420)** | **Type 420** is the closest UNS/ASTM equivalent, typically with C ≥ 0.15%. | | **UNS** | **UNS S42000** | For Type 420 stainless steel. | | **Germany (DIN)** | Often referenced under **1.4021** or similar ranges. | Material numbers can be supplier-specific for instrument-quality steels. | | **Common Names** | **"420 Surgical Steel"**, **"High-Carbon Instrument Steel"** | | **Critical Note:** For medical instruments, material is often supplied to **manufacturer's proprietary specifications** that refine the standard chemistry (e.g., tighter S/P control, specific grain size requirements) and are accompanied by stringent metallurgical and certification requirements. ### **7. Available Forms & Processing** * **Standard Forms:** Round bar, flat bar, wire, strip, and sheet – supplied in the **soft annealed** condition. * **Fabrication Process Flow:** 1. **Machining/Forging:** Performed in the annealed state. 2. **Hardening & Tempering:** The most critical step. Requires precise temperature control to avoid excessive grain growth or retained austenite. Tempering is essential to relieve stresses and set final hardness/toughness. 3. **Finishing:** Precision grinding, mechanical polishing, electropolishing, passivation (typically in nitric acid), and final edge honing. 4. **Cleaning, Sterilization Validation, and Packaging.** ### **8. Selection Rationale** **Choose X15Cr13 over X10Cr13 when:** * The instrument design **demands the highest possible edge retention** (e.g., microsurgical tools, scalpels for multiple uses). * **Wear resistance is a primary concern** (e.g., instruments contacting bone or calcified tissue). * The manufacturing process can accommodate the **slightly more critical heat treatment** required for higher-carbon steel. **Consider alternatives (e.g., X39CrMo17-1 / 1.4125) when:** * **Corrosion resistance needs to be significantly higher** (e.g., for instruments used in lengthy procedures or exposed to more aggressive environments). * A better combination of **high hardness and toughness** is required, as provided by molybdenum-containing martensitic grades. --- **Disclaimer:** This datasheet provides general technical information. The manufacture of medical devices is strictly regulated. All materials must be **biocompatible** for their intended use, and the entire manufacturing process (including heat treatment and finishing) must be validated under quality management systems (e.g., ISO 13485, FDA QSR). Material should be procured with certifications meeting **EN ISO 7153-1** or equivalent medical device material standards. Final instrument performance is critically dependent on precise and validated manufacturing processes. -:- For detailed product information, please contact sales. -: X15Cr13 Stainless Steel for medical instruments Specification Dimensions Size： Diameter 20-1000 mm Length <7403 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. -: X15Cr13 Stainless Steel for medical instruments Properties -:- For detailed product information, please contact sales. -:

Applications of X15Cr13 Stainless Steel Sheet,Plate for medical instruments -:- For detailed product information, please contact sales. -: Chemical Identifiers X15Cr13 Stainless Steel Sheet,Plate for medical instruments -:- For detailed product information, please contact sales. -:

Packing of X15Cr13 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 3874 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