---
product_id: 146644051
title: "2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C"
brand: "nexmetal"
price: "1358164₫"
currency: VND
in_stock: true
reviews_count: 4
category: "Nexmetal"
url: https://www.desertcart.vn/products/146644051-2-way-nitinol-shape-memory-alloy-spring-0-7mm9mm15-60mm
store_origin: VN
region: Vietnam
---

# Expands at 60°C 0.7mm wire gauge precision Contracts at 30°C 2-Way Nitinol Shape Memory Alloy Spring; 0.7mm9mm15-60mm; Af 60C Mf 30C

**Brand:** nexmetal
**Price:** 1358164₫
**Availability:** ✅ In Stock

## Summary

> 🔥❄️ The spring that works both ways—heat it up, cool it down, and watch the magic unfold!

## 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?** 1358164₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 1.28g spring packs powerful bidirectional force
- • **Conversation Starter:** A sleek, science-backed gadget that’s perfect for your desk or demos
- • **Precision Engineering:** 0.7mm wire gauge and 9mm diameter for consistent performance
- • **Effortless Shape Memory:** Automatically expands and contracts without manual intervention
- • **Thermo-Responsive Power:** Spring self-activates with heat and cold for dynamic force

## Overview

This 2-way Nitinol shape memory alloy spring expands when heated to 60°C and contracts when cooled to 30°C, exerting force in both directions. Crafted with a precise 0.7mm wire gauge and 9mm diameter, it offers reliable thermo-responsive motion in a compact 1.28g form factor. Ideal for innovative demos, mechanical projects, or as a unique desk toy that blends science with 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 |
|---------------|-------|
| 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; 0.7mm9mm15-60mm; 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

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-03*