Information Library


Information that may help on material selection, heat treatment or machining problem.

Our library documents are available to download and print as a PDF file. Please select from the documents below to start the download and open on your device. If you are having problems viewing the document then please update your viewer with Adobe Acrobat PDF Viewer (free)

Grades of Carbon Steel
Grades of Carbon Steel and Common Uses

Description of the practical uses for each common grade of carbon steel.

What does EN and BS identification mean?
Meaning of 'EN' and 'BS970' Identification Designations

Engineering materials are identified using a system of designation numbers, this paper details the two common systems used in the UK.

Heat treating tool steels
Heat Treating Toolsteel

How to heat treat and temper tool steels including Silver Steel and Gauge Plate.

Using a dividing head
How to use a Dividing Head

Here we show how to set and use a rotary dividing head (or rotary table) that is fitted with hole plate.


Want to ask a question?

If you want to place and order then the quickest way is to either telephone or email, currently we don't take orders on-line as we're old fasioned and like to write things down (this way we know if we have physical material stock on our shelves for an enquiry.) We're always available to help with a material selection or advise on an engineered part, please feel free to give us a call as one of our engineers will be happy to help.

Get in touch»


We're a small business trading under the name of M-Machine, our registered company name is Craftgrange Limited. We operate from the UK under the registration number of 01476185 and were established in 1980 to supply pressed steel panels, engineered parts and materials to business and general public.

Learn more about who we are »


Unit 3 to 7 Forge Way, Cleveland Trading Estate
Darlington, County Durham, DL1 2PJ. UK
P: (01325)381302 (Metals and Engineering)
P: (01325)381300 (Mini Pressings and Accounts)
E: Get in touch via e-mail


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