---
product_id: 732550746
title: "2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C"
brand: "nexmetal"
price: "FREE"
currency: EUR
in_stock: false
url: https://www.desertcart.fi/products/732550746-2-way-nitinol-shape-memory-alloy-spring-0-7mm-9mm
store_origin: FI
region: Finland
---

# 0.7mm wire gauge Expands at 60°C Contracts at 30°C 2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C

**Brand:** nexmetal
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> ♻️ The smart spring that moves with your environment — feel the heat, catch the cool!

## Quick Answers

- **What is this?** 2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C by nexmetal
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/732550746-2-way-nitinol-shape-memory-alloy-spring-0-7mm-9mm)

## 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

- • **Bidirectional Force:** Exerts tensile force both when expanding and contracting, maximizing mechanical efficiency.
- • **Dynamic Length Range:** Contracts at 15mm cold, extends beyond 40mm when heated for versatile applications.
- • **Lightweight & Compact:** At just 1.5g, it fits seamlessly into innovative designs without bulk.
- • **Precision Engineering:** 0.7mm wire gauge and 9mm diameter ensure consistent, reliable performance.
- • **Thermal-Powered Motion:** Spring expands and contracts autonomously with temperature shifts, no external power needed.

## Overview

This 2-Way Nitinol Shape Memory Alloy Spring features a 0.7mm wire gauge and 9mm diameter, expanding at 60°C and contracting at 30°C. It autonomously changes length from 15mm to over 40mm, exerting force in both directions, making it ideal for cutting-edge hardware applications requiring responsive, temperature-driven actuation.

## Description

Pre trained nitinol bidirectional memory coil expands and exerts force when heated to 60°C. Once cooled to room temperature, the spring contracts itself with substantial tensile force. The spring completely contracts at room temperature alone. Force is exerted in both entropy directions.

## Features

- Spring expands itself when placed in hot water, exerting force.
- The spring closes on its own when cooled to room temperature or dipped in cold water, exerting force.
- Spring wire gauge: 0.7mm. Spring Diameter: 9mm
- Full contracted length (cold): 15+ mm. Fully extended length (warm): 40+ mm. Actual spring length may vary ±5mm.
- Weight: 1.5 g. Package contains one spring.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TD34ZGV |
| Best Sellers Rank | #249,564 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Mechanical Constant Force Springs |
| Date First Available | June 23, 2019 |
| Item Weight | 0.317 ounces |
| Item model number | nx-spr-w07x9x14 |
| Manufacturer | Nexmetal |
| Package Dimensions | 2.56 x 1.85 x 0.31 inches |

## Images

![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C - Image 1](https://m.media-amazon.com/images/I/713-Q+baAgL.jpg)
![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C - Image 2](https://m.media-amazon.com/images/I/71QSsZARtJL.jpg)
![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C - Image 3](https://m.media-amazon.com/images/I/71qODlqveYL.jpg)
![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C - Image 4](https://m.media-amazon.com/images/I/71ABhzMclqL.jpg)
![2-Way Nitinol Shape Memory Alloy Spring; 0.7mm 9Mm 15-60Mm; Af 60C Mf 30C - Image 5](https://m.media-amazon.com/images/I/71OyujAICnL.jpg)

## 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

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**Shop now:** [https://www.desertcart.fi/products/732550746-2-way-nitinol-shape-memory-alloy-spring-0-7mm-9mm](https://www.desertcart.fi/products/732550746-2-way-nitinol-shape-memory-alloy-spring-0-7mm-9mm)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-28*