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Manganese Steel – 6 Things You Need to Know

Views:18     Author:hytoncasting     Publish Time: 2019-08-26      Origin:www.hytoncasting.com

Manganese Steel – 6 Things You Need to Know


1. What is manganese steel?


Manganese steel, also called Hadfield steel or mangalloy, is a steel alloy containing 12-14% manganese. Renowned for its high impact strength and resistance to abrasion in its hardened state, the steel is often described as the ultimate work hardening steel.


2. What is manganese steel used for?


Because of its self hardening properties, manganese steel has been used in the mining industry for many years – cement mixers, rock crushers, crawler treads for tractors, elevator and shovel buckets – as well as in the rail industry (switches and crossings) and other high impact environments.
Up until recently manganese steel was used in the window bars in prisons as it makes light work of chewing up the hacksaw blades of potential escapees. Nowadays the steel is often used in safes, bullet proof cabinets and anti-drill plates.


3. Does manganese steel rust?


While all steels and low-alloy steels rust in moist atmospheres, an increase in manganese in steel has a positive effect on corrosion resistance, partly due to the adsorption of manganese ions.


4. Is manganese steel magnetic?


While manganese steel guarantees wear and work hardening properties, it is non magnetic, making it ideal for use in electrical transformer assemblies and for industrial lifting magnets.


5. How to cut manganese steel




Many of mangalloy’s uses are often limited by its difficulty in machining; sometimes described as having “zero machinability.” The metal cannot be softened by annealing and hardens rapidly under cutting and grinding tools, usually requiring special tooling to machine.


The material can be drilled with extreme difficulty using diamond or carbide. Although it can be forged from a yellow heat, it may crumble if hammered when white-hot, and is much tougher than carbon steel when heated. It can be cut with an oxy-acetylene torch, but plasma or laser cutting is the preferred method.


6. How to weld manganese steel
Manganese steel plate can be welded, but it’s important to keep the heat down and cool the weld as soon as possible to avoid cracking. An interpass temperature of below 500F is recommended. Because of the toxic nature of the weld fumes it’s vitally important to protect yourself accordingly.

 
 
Hyton Heavy Industry is one of the UK’s main suppliers of manganese steel plates.


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