Sandvik,13RM19 Strip Steel Tube,Pipe

Sandvik 13RM19 Strip Steel Tube Product Information -:- For detailed product information, please contact sales. -: Sandvik 13RM19 Strip Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Sandvik 13RM19 Strip Steel Product Information -:- For detailed product information, please contact sales. -: ## **Sandvik 13RM19 Strip Steel – High-Strength, Corrosion-Resistant Martensitic Stainless Steel for Precision Springs** ### **Product Overview** Sandvik 13RM19 is a **premium martensitic stainless steel strip** specifically engineered for high-performance spring applications that demand an exceptional combination of **strength, corrosion resistance, and consistent fatigue life**. Characterized by its ability to be supplied in a pre-hardened and tempered (aged) condition, 13RM19 offers spring manufacturers a ready-to-form material that eliminates the need for final customer heat treatment, minimizing distortion and ensuring predictable mechanical properties. It is designed to bridge the gap between standard stainless spring steels and more exotic, costly alloys. ### **Key Advantages** * **High Strength-to-Corrosion Ratio:** Delivers significantly higher tensile and fatigue strength than austenitic grades like 302 or 304, while offering better corrosion resistance than hardenable carbon spring steels. * **Excellent Relaxation Resistance:** Maintains load-bearing capability (resists "set") better than many austenitic grades, especially at moderately elevated temperatures. * **Ready-to-Use Condition:** Supplied in the final hardened and tempered state, simplifying production and ensuring dimensional stability of formed springs. * **Good Formability in Hardened State:** Allows for precise bending and coiling operations to create complex flat spring shapes without intermediate annealing. * **Predictable Performance:** Sandvik's controlled processing ensures uniform microstructure and properties coil-to-coil, critical for reliable spring function. ### **Chemical Composition (Typical, wt%)** The composition is a carefully balanced martensitic stainless steel, optimized for hardenability and corrosion resistance. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.12 - 0.17 | **Chromium (Cr)** | 12.0 - 14.0 | | **Nickel (Ni)** | 0.40 - 0.80 | **Molybdenum (Mo)** | 0.40 - 0.80 | | **Silicon (Si)** | ≤ 0.50 | **Manganese (Mn)** | ≤ 1.00 | | **Vanadium (V)** | ≤ 0.15 | **Sulfur (S)** | ≤ 0.030 | | **Phosphorus (P)** | ≤ 0.030 | **Iron (Fe)** | Balance | *Note: The addition of Nickel and Molybdenum enhances hardenability, toughness, and corrosion resistance compared to basic martensitic grades.* ### **Physical & Mechanical Properties (Typical, as supplied in H&T condition)** * **Density:** 7.8 g/cm³ * **Modulus of Elasticity (E):** 200 GPa * **Tensile Strength (Rm):** **1800 – 2150 MPa** * **Yield Strength (Rp0.2):** 1650 – 2000 MPa * **Hardness:** 480 – 550 HV / 48 – 52 HRC * **Elongation (A₅₀):** 3 – 6% * **Fatigue Strength:** Excellent, suited for dynamic applications. #### **Temperature Considerations:** * **Maximum Continuous Service Temperature:** **Approx. 250°C (480°F)**. Properties are stable for intermittent or continuous exposure up to this range. * **Low-Temperature Performance:** Maintains good toughness down to cryogenic temperatures. #### **Corrosion Resistance:** * Superior to standard carbon and low-alloy spring steels. * Suitable for applications exposed to atmospheric conditions, moisture, mild chemicals, and some industrial atmospheres. Not recommended for severe chloride environments (e.g., marine splash zone) where austenitic or duplex grades would be preferred. ### **International Standards & Approvals** Sandvik 13RM19 is a proprietary grade that aligns with the general requirements of high-strength martensitic stainless spring steels. * **Sandvik Proprietary Grade:** **13RM19** * **Similar/Related Standards:** * **EN / Werkstoff:** Similar in concept to 1.4421 (X20CrNiMoV12-10) spring variants. * **ASTM:** A313 (for stainless spring wire - Type 631/17-7PH is a different but performance-similar precipitation-hardening grade). * **UNS:** S42000-series modified. * **Industry Use:** Widely specified and approved in automotive, electrical, and precision engineering sectors for critical spring applications. ### **Product Applications** 13RM19 is ideal for demanding flat and formed spring components where reliability, space constraints, and a corrosive service environment intersect. * **Automotive & Transportation:** * Fuel injector springs * Valve springs (e.g., EGR valves) * Clutch and brake system springs * Seat belt retractor components * Sensor and actuator springs * **Electrical & Electronics:** * High-reliability connector springs (e.g., in automotive ECUs, industrial controls) * Spring contacts in switches and relays * Battery contact springs * **Industrial & Hydraulics:** * Spring-loaded seals and packing rings * Pressure relief valve springs * Spool valve springs in pneumatic and hydraulic systems * Agricultural machinery springs * **Consumer & General Engineering:** * High-performance lock springs * Springs in valves and regulators for domestic appliances * Critical snap rings and retaining rings ### **Processing Guidelines** * **Forming:** Can be stamped, blanked, and bent in the supplied hardened condition. Tooling must be robust and designed for high-strength materials. A low-temperature stress relief (e.g., 250-300°C for 30-60 minutes) after severe forming is often recommended to optimize spring performance and stability. * **Machining:** Difficult in the hardened state; grinding or EDM are suitable methods if secondary machining is required. * **Heat Treatment:** **DO NOT re-austenitize or re-harden.** The material is supplied in its final tempered condition. Any exposure above ~400°C will soften the material. * **Surface Treatment:** Accepts common coatings like zinc phosphate, electroplating (zinc, nickel), or organic coatings for enhanced corrosion protection or appearance. ### **Availability** Sandvik supplies 13RM19 as precision cold-rolled strip. * **Thickness:** Typically 0.10 mm to 2.0 mm (custom ranges possible) * **Width:** Up to 330 mm * **Condition:** Hardened and Tempered (H&T), with a clean, bright surface finish. * **Temper:** Spring temper * **Packaging:** Coils or straight lengths, protected against mechanical damage and corrosion. --- **Critical Application Note:** Sandvik 13RM19 is a high-strength engineering material. Successful implementation requires careful design considering its high yield strength and limited elongation in the supplied state. **Consultation with Sandvik's technical service is strongly recommended** to select the correct temper, review forming limitations (minimum bend radii), and validate the design for the specific application's stress, fatigue, and environmental conditions. Always refer to the latest official Sandvik technical datasheet for precise, specification-grade data. -:- For detailed product information, please contact sales. -: Sandvik 13RM19 Strip Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7444 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 13RM19 Strip Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Sandvik 13RM19 Strip Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers Sandvik 13RM19 Strip Steel Tube -:- For detailed product information, please contact sales. -:

Packing of Sandvik 13RM19 Strip Steel Tube -:- 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 Tube 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 3915 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