Sandvik 12C27 Strip Steel

Sandvik 12C27 Strip Steel Product Information -:- For detailed product information, please contact sales. -: Sandvik 12C27 Strip Steel Synonyms -:- For detailed product information, please contact sales. -:

Sandvik 12C27 Strip Steel Product Information -:- For detailed product information, please contact sales. -: ## **Sandvik 12C27 Strip Steel – Premium Martensitic Stainless Steel for Blades and Precision Components** ### **Product Overview** Sandvik 12C27 is a high-quality, martensitic stainless steel strip specifically engineered for applications requiring an exceptional balance of **edge sharpness, corrosion resistance, toughness, and hardness**. Originally developed by Sandvik for high-performance knife blades, it has become an industry benchmark for cutlery and is increasingly used in precision industrial components. The steel is characterized by its fine carbide structure, which contributes to its ability to take and hold a very sharp edge while maintaining good ductility. ### **Key Advantages** * **Superior Edge Performance:** Fine grain structure and balanced carbide content allow for excellent sharpness and edge retention. * **Good Corrosion Resistance:** Superior to standard carbon tool steels, offering adequate protection against rust and staining in many environments. * **High Hardness Attainable:** Can be hardened to high levels (typically 56-60 HRC) for maximum wear resistance. * **Good Toughness:** Resists chipping and breaking better than many harder, more brittle steels. * **Excellent Polishability:** Achieves a very fine, mirror-like finish, ideal for aesthetic and functional surfaces. * **Consistent Quality:** Sandvik's precision strip production ensures uniform chemistry, microstructure, and dimensional tolerances. ### **Chemical Composition (Typical, wt%)** The composition is optimized for a fine martensitic structure with well-distributed chromium carbides. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.60 | **Chromium (Cr)** | 13.50 | | **Silicon (Si)** | 0.40 | **Manganese (Mn)** | 0.40 | | **Phosphorus (P)** | ≤ 0.025 | **Sulfur (S)** | ≤ 0.010 | | **Nitrogen (N)** | 0.015 | **Iron (Fe)** | Balance | *Note: The precise 0.6% carbon and 13.5% chromium balance is key to its performance, providing hardenability and stain resistance.* ### **Physical & Mechanical Properties** #### **Properties in Annealed Condition (as supplied strip):** * **Density:** 7.7 g/cm³ * **Modulus of Elasticity:** 200 GPa * **Hardness:** ~200 HB * **Tensile Strength:** 700 - 900 MPa * **Yield Strength:** ~550 MPa * **Elongation:** ~15% * **Magnetic:** Yes (martensitic structure) #### **Properties after Hardening & Tempering (Typical heat treatment):** * **Hardness Range:** **56 - 60 HRC** (Achieved by austenitizing at 1040-1060°C, oil quenching, and tempering at 150-200°C) * **Tensile Strength:** 2000 - 2300 MPa * **Toughness:** Good for the achieved hardness level. #### **Corrosion Resistance:** * Offers significantly better resistance to rust and staining than carbon and low-alloy tool steels (e.g., 1095, A2). * Suitable for applications exposed to moisture, perspiration, and mild chemicals, but not equivalent to austenitic grades like 304 or high-chromium grades like 440C. ### **International Standards & Approvals** * **Sandvik Proprietary Grade:** **12C27** * **Common Equivalent Standards:** * **EN / Euronorm:** 1.4021 (X20Cr13) * **UNS:** S42000 * **ASTM:** AISI 420 (Modified) * **ISO:** 4957: Tool steels (similar to 1.4021) * **Industry Recognition:** The "12C27" designation itself is a widely recognized and requested specification in the global cutlery and blade-making industry. ### **Product Applications** Sandvik 12C27 is the material of choice for a vast range of applications where a sharp, durable edge and moderate corrosion resistance are required. * **Primary Application – Cutlery & Blades:** * High-quality kitchen knives (chef's knives, paring knives) * Pocket knives, folding knives, and hunting/sporting knives * Professional barber and salon shears * Industrial cutting blades (for textiles, packaging) * Surgical and medical scalpels (requires specific processing and certifications) * **Precision Industrial Components:** * Wear parts requiring a hard, corrosion-resistant surface * Shafts, pins, and valve components in mildly corrosive environments * Measuring tools and gauge parts * Plastic injection mold cores and ejector pins for non-abrasive materials * Springs and snap rings for corrosive atmospheres (after appropriate tempering) * **Consumer & Specialty Goods:** * High-end razor blades * Scissors and shears for various uses * Craft and hobby knives ### **Processing Guidelines** * **Forming (Annealed State):** Good formability for bending, stamping, and blanking. Severe deformation may require intermediate annealing. * **Machining:** Can be machined in the annealed state. Use sharp tools and adequate cooling. * **Heat Treatment:** * **Austenitizing:** 1040-1060°C, followed by rapid oil quenching. * **Tempering:** Typically 150-200°C for 1-2 hours to achieve target hardness and relieve quenching stresses. Higher tempering temperatures increase toughness but reduce hardness. * **Surface Finishing:** Polishes to an excellent mirror finish. Common finishes include grinding, belt sanding, tumbling, and electro-polishing. ### **Availability** Sandvik supplies 12C27 as cold-rolled precision strip, tailored for blade and component manufacturers. * **Thickness:** Typically 0.5 mm to 4.0 mm (custom ranges possible) * **Width:** Up to 330 mm * **Condition:** Soft Annealed (A), ready for forming and subsequent heat treatment. * **Surface Finish:** Bright (2B), Polished (2P), or as specified. * **Packaging:** Coils or straight lengths, protected to prevent surface damage. --- **Important Note:** 12C27 requires proper **customer heat treatment** (hardening and tempering) to achieve its final properties. Designers must account for dimensional changes during this process. For critical applications, especially in regulated industries like medical devices, consultation with Sandvik's technical support is essential to specify the correct strip parameters and processing guidelines. -:- For detailed product information, please contact sales. -: Sandvik 12C27 Strip Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7441 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. -: Sandvik 12C27 Strip Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Sandvik 12C27 Strip Steel -:- For detailed product information, please contact sales. -: Chemical Identifiers Sandvik 12C27 Strip Steel -:- For detailed product information, please contact sales. -:

Packing of Sandvik 12C27 Strip Steel -:- 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 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 3912 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