Sandvik,SAF 2205SH

Sandvik SAF 2205SH Spring Wire Product Information -:- For detailed product information, please contact sales. -: Sandvik SAF 2205SH Spring Wire Synonyms -:- For detailed product information, please contact sales. -:

Sandvik SAF 2205SH Spring Wire Product Information -:- For detailed product information, please contact sales. -: ### **Sandvik SAF 2205SH – High Strength Duplex Stainless Steel Spring Wire** #### **Product Overview** Sandvik SAF 2205SH is a **Super High-Strength** variant of the renowned duplex stainless steel 2205, specifically optimized for premium spring applications. The “SH” designation signifies a unique thermomechanical processing and alloy balance that delivers **significantly higher mechanical strength** while maintaining the excellent corrosion resistance of the standard duplex 2205 grade. It is engineered for applications where maximum load-bearing capacity, miniaturization, and extreme reliability in corrosive environments are paramount. This wire is produced under stringent controlled conditions to ensure exceptional consistency, superb surface finish, and predictable spring performance under high stress. #### **Key Advantages & Differentiation from Standard SAF 2205** * **Ultra-High Strength:** Offers **substantially higher tensile and fatigue strength** compared to standard SAF 2205 spring wire, enabling: * More compact and lighter spring designs. * Higher forces in the same space envelope. * Potential for down-gauging (using thinner wire for the same force requirement). * **Maintained Corrosion Resistance:** Retains the excellent general and chloride stress corrosion cracking (SCC) resistance characteristic of the 2205 duplex family. * **Superior Fatigue Performance:** The enhanced strength directly translates to improved fatigue life under high cyclic loading, a critical factor for dynamic spring applications. * **Cost-Effective Alternative to Exotics:** Often serves as a high-performance, more economical substitute for nickel-based alloy spring wires (e.g., Inconel X-750) in many demanding applications. #### **Chemical Composition (Typical, wt%)** The composition is precision-controlled, often with adjusted micro-alloying elements to facilitate the strengthening processes. It remains within the standard 2205 duplex range. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Chromium (Cr)** | 22.0 | **Nickel (Ni)** | 5.5 | | **Molybdenum (Mo)** | 3.2 | **Nitrogen (N)** | 0.18 | | **Manganese (Mn)** | ~2.0 | **Carbon (C)** | ≤ 0.03 | | **Silicon (Si)** | ~1.0 | **Sulfur (S)** | ≤ 0.03 | | **Phosphorus (P)** | ≤ 0.03 | **Iron (Fe)** | Balance | *Note: The key difference lies in the manufacturing process, not a drastic compositional change.* #### **Physical & Mechanical Properties** Properties are for wire in the final cold drawn and specially heat-treated (aged) condition, tailored for spring performance. * **Density:** 7.8 g/cm³ * **Modulus of Elasticity (E):** ~200 GPa * **Tensile Strength:** **Typically 2000 – 2400+ MPa**, significantly higher than standard 2205. Exact values depend on wire diameter. * **Yield Strength (0.2% offset):** Typically ≥ 1900 MPa. * **Fatigue Strength:** Exceptionally high, optimized for dynamic applications. * **Magnetic Response:** Slightly magnetic. * **Operating Temperature:** Suitable for sustained use up to approximately **250°C - 300°C (480°F - 570°F)**. For short-term peaks, consult technical data. #### **International Standards & Specifications** SAF 2205SH is a proprietary high-performance grade from Sandvik. It aligns with the base material standards but is specified by its unique Sandvik designation due to its enhanced properties. * **Base Material Standard:** UNS S31803 / S32205, EN 1.4462 * **Primary Specification:** **Sandvik SAF 2205SH** is the defining specification. Engineers should reference this name directly in drawings and specifications. * **Relevant Spring Wire Standards:** The manufacturing and testing adhere to the spirit of standards like **ASTM A313 (duplex grade)** and **ISO 6931-2**, but at the superior “SH” performance level. #### **Product Applications** SAF 2205SH is designed for the most demanding spring applications across critical industries: * **Oil & Gas – Downhole Tools:** High-force springs for logging tools, safety valves, and sampling equipment in high-pressure/high-temperature (HPHT) and sour service wells. * **Aerospace & Defense:** Critical springs in fuel systems, actuators, and control mechanisms requiring high strength-to-weight ratio and reliability. * **High-Performance Automotive:** Valve springs, clutch springs, and injector components in advanced or racing engines. * **Medical Device – Advanced Instruments:** Springs for minimally invasive surgical tools, robotic surgery arms, and implantable devices where space is limited and force requirements are high. * **Chemical & Process Industry:** Springs for severe service valves, pressure relief devices, and sampling equipment exposed to aggressive chlorides. * **Subsea & Marine:** Critical components in ROVs (Remotely Operated Vehicles), connectors, and deep-sea instrumentation. #### **Availability** Available in precision-drawn diameters, typically ranging from **0.10 mm to 3.0 mm** (subject to manufacture’s standard range), supplied on spools or coils suitable for high-speed, automated spring coiling. --- **Important Notice:** Sandvik SAF 2205SH is a specialized product. For design-critical applications, it is **essential** to consult the latest official Sandvik technical datasheets and engage with their application engineers. They can provide precise property data, processing guidelines (coiling, heat treatment), and suitability verification for your specific operating environment and performance requirements. -:- For detailed product information, please contact sales. -: Sandvik SAF 2205SH Spring Wire Specification Dimensions Size： Diameter 20-1000 mm Length <7438 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 SAF 2205SH Spring Wire Properties -:- For detailed product information, please contact sales. -:

Applications of Sandvik SAF 2205SH Spring Wire -:- For detailed product information, please contact sales. -: Chemical Identifiers Sandvik SAF 2205SH Spring Wire -:- For detailed product information, please contact sales. -:

Packing of Sandvik SAF 2205SH Spring Wire -:- 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 3909 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