> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Muscle Wire - 0.005" Diameter (1 foot)

**Type:** Product page · **SKU:** COM-11899 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/muscle-wire-0-005-diameter-1-foot.html ([markdown](https://core-electronics.com.au/muscle-wire-0-005-diameter-1-foot.html.md))

This 0.005" Muscle Wire® (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it. If you are asking yourself “What sorcery is this?!” We assure you, this isn’t magic, it’s just simple science thanks to shape memory and a change between the wires weaker, low temperature form (martensitic) and its stronger, high temperature form (austenite).

## Pricing

- **Price:** $3.40 (inc GST) — $3.09 AUD, exc GST
- **Quantity discounts:** 5+ $3.00 (exc GST) · 25+ $2.94 (exc GST) · 100+ $2.81 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 180 more in 5–11 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=COM-11899:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/COM-11899:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This 0.005" Muscle Wire® (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it. If you are asking yourself “What sorcery is this?!” Sparkfun assure you, this isn’t magic, it’s just simple science thanks to shape memory and a change between the wires weaker, low temperature form (martensitic) and its stronger, high temperature form (austenite).

 When the Muscle Wire® is in its martensitic form, it can be formed and bent into different shapes. However, when an electrical current of ~200mA is applied to the wire, or is heated to ~100C it reverts to austenite form and recovers its previous shape with great force. Additionally, you can anneal at ~500C (use an industrial furnace or simply a lighter) it to whatever shape you would want, next once that current or heat is applied it will return to that new shape.

**Note:** The datasheet found below is for Flexinol® actuator wire, that isn’t exactly like all Muscle Wire® but it’s close. Flexinol® Actuators Wires are made specifically for linear actuators to replace small motors or solenoids.

**Features:**

- Length: 305mm
- Diameter: 0.127mm
- Current Required for Austenite Form: 200mA
- Pull Force: 0.49lbs
- Resistance: 1.9 ohms/inch
 
**Documents:**

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/TCF1140_18363aaefd9.pdf)
- [Product Video](https://www.youtube.com/watch?feature=player_embedded&v=bnHaBYOQOK4#t=192s)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/m/u/muscle_wire_-_0.005_inch_diameter__1_foot___com-11899__01.jpg)