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old garden shears


hodge911
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Re the file test - it may not be tempered very hard.

 

Better to heat it to non-magnetic, quench in oil, then try the file. If still soft, try quenching in hot water and test again.

If it's an old pair of shears, it will probably make a decent knife.

sorry mate this means nowt to me I understand what the quench is but as for the non magnetic bit........ woosh straight over the top :lol::lol: :lol: :lol:

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sorry mate this means nowt to me I understand what the quench is but as for the non magnetic bit........ woosh straight over the top :lol::lol: :lol: :lol:

Sorry!

Heat it up to red/orange - check by touching the piece to a large magnet. When the steel is no longer attracted to the magnet, that is the critical temperature. Keep it at that point for 30 seconds or so, then quench it as above, and test with a file.

If it does prove to harden sufficiently, then you need to anneal it do it can be worked: heat it as before, hold at the critical temperature for 30 seconds, then leave to cool as slowly as possible.

When cold it will be as soft as it will get,, and ready to cut/file.

Edited by CaptainBeaky
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Sorry!

Heat it up to red/orange - check by touching the piece to a large magnet. When the steel is no longer attracted to the magnet, that is the critical temperature. Keep it at that point for 30 seconds or so, then quench it as above, and test with a file.

If it does prove to harden sufficiently, then you need to anneal it do it can be worked: heat it as before, hold at the critical temperature for 30 seconds, then leave to cool as slowly as possible.

When cold it will be as soft as it will get,, and ready to cut/file.

cheers C.B I get what you mean I can just about remember the bit in metal work at school about hardening and annealing ...lol

as I have no way of heating these does anyone who has the facilities and know how want to come pick them up F.O.C

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