At Meadowlark Engineering we have over 30 years experience and manufacture our Lehr plates from high tensile steel (HST). Our Lehr lines are designed to reduce the abrasion caused by friction and add extra support. As an organisation Meadowlark Engineering supplies industries all over the UK and is enjoying a burgeoning trade with glass packaging manufacturers all over the world. Our extension wear plates easily and efficiently clip onto your machines, minimising down time, and we can promise a fast turn around and delivery time without sacrificing the quality of our Lehr components.
What is HST?
The term tensile defines the maximum degree to which the metal alloy can be stretched before breaking. In practice it is normal to measure the point at which the cross sectional area of the metal starts to narrow, that is when it starts to stretch. HST alloys have approximately twice the tensile strength of mild steel making it particularly suited for cold end operation. HST is classified according to its mechanical properties and not its composition. There are several grades and the minimum requirement for any HST is the ability to withstand a minimum of 50,000 PSI. The strongest HST can withstand approximately 80,000 PSI depending on the exact grade.
What are metal alloys?
An alloy is a mixture of one or more metals and /or a non-metal in exact proportions. The purpose of alloying is to improve the properties of the metal and make it suitable for particular uses. In the case of HST, liquid metals such as chromium or molybdenum are added to molten iron. Steel itself is an alloy of iron, which is almost never used in its pure form. Pure iron is a soft malleable metal which readily rusts in the presence of water and oxygen, so without alloying iron would be useless as an industrial material. HST is not only particularly resistant to corrosion (rust) but is also a tough, lightweight and durable alloy making it the perfect material for our customer's requirements.
Meadowlark Engineering have been in business since 1997. For any queries and questions about our Lehr components and how we can help you please call us on 0114 2678965.