--- product_id: 146644051 title: "2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C" brand: "nexmetal" price: "167.30 DT" currency: TND in_stock: true reviews_count: 5 category: "Nexmetal" url: https://www.desertcart.tn/products/146644051-2-way-nitinol-shape-memory-alloy-spring-0-7mm9mm15-60mm store_origin: TN region: Tunisia --- # 0.7mm wire gauge & 9mm diameter Expands at 60°C Contracts at 30°C 2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C **Brand:** nexmetal **Price:** 167.30 DT **Availability:** ✅ In Stock ## Summary > ♻️ The spring that moves with your temperature—and your imagination! ## Quick Answers - **What is this?** 2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C by nexmetal - **How much does it cost?** 167.30 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/146644051-2-way-nitinol-shape-memory-alloy-spring-0-7mm9mm15-60mm) ## Best For - nexmetal enthusiasts ## Why This Product - Trusted nexmetal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Lightweight at just 1.28g, perfect for innovative prototypes or interactive demos. - • **Dual-Direction Force:** Exerts force both when heating and cooling—engineered for reversible motion. - • **Effortless Activation:** Simply drop in hot or cold water to watch the magic unfold—no batteries needed. - • **Precision Engineering:** 0.7mm wire gauge and 9mm diameter deliver consistent, reliable spring action. - • **Thermo-Responsive Power:** Automatically expands and contracts with temperature shifts for dynamic force. ## Overview This 2-Way Nitinol Shape Memory Alloy Spring is a precision-engineered, temperature-activated coil that expands at 60°C and contracts at 30°C, exerting force in both directions. With a 0.7mm wire gauge and 9mm diameter, it offers reliable reversible motion ideal for innovative applications, weighing just 1.28 grams. Perfect for professionals seeking cutting-edge materials that combine science and style. ## Description Nitinol pre-trained 2-way memory helical/coil spring expands and exerts force when heated to 60C. Once cooled to room temperature, the spring contracts on its own with substantial pulling force. The spring contracts completely at room temperature by itself. Force is exerted in both directions entropy. Review: Works - Cool for showing off. Review: Kinda novel, but doesn't really keep it's shape - After deforming only a few times, when put in hot water, it only goes mostly back to original shape... ## Features - Spring expands by itself when dropped in hot water, exerting force. - Spring shuts closed by itself cooled to room temperature or dropped in cool water, exerting force. - Spring wire gauge: 0.7 mm. Spring Diameter: 9 mm - Fully contracted (cold) length: 15+ mm. Fully extended (hot) length: 40+ mm. Actual spring length may vary ±5 mm. - Weight: 1.28 grams. Package contains One Spring. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 3.6 out of 5 stars 19 Reviews | ## Images ![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C - Image 1](https://m.media-amazon.com/images/I/713-Q+baAgL.jpg) ![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C - Image 2](https://m.media-amazon.com/images/I/71QSsZARtJL.jpg) ![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C - Image 3](https://m.media-amazon.com/images/I/71qODlqveYL.jpg) ![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C - Image 4](https://m.media-amazon.com/images/I/71ABhzMclqL.jpg) ![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C - Image 5](https://m.media-amazon.com/images/I/71OyujAICnL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works *by A***. on May 18, 2025* Cool for showing off. ### ⭐⭐⭐ Kinda novel, but doesn't really keep it's shape *by D***R on January 10, 2024* After deforming only a few times, when put in hot water, it only goes mostly back to original shape... ### ⭐⭐⭐⭐⭐ Worked as promised! *by M***. on October 2, 2024* I used this as a kids illustration. It worked great! ## Frequently Bought Together - 2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C - 5 Feet Nitinol Shape Memory Pre-trained Wire (1.0mm 40 C (18ga 104 F)) - Sci-Supply Worlds Smartest Paperclip, Memory Metal Paper Clip, Nitinol Wire Paperclip, Magic Paperclip --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/146644051-2-way-nitinol-shape-memory-alloy-spring-0-7mm9mm15-60mm](https://www.desertcart.tn/products/146644051-2-way-nitinol-shape-memory-alloy-spring-0-7mm9mm15-60mm) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-03*