06-18-2007, 07:59 PM
Svlla look forward to seeing the sword finished any probs drop a line
Marcvs ther are few different ways to blue,since some groups are now blueing Cassis and Loricas.In medieval times a oven was built next to the forge so this also could have been done in a roman fabrica as well.Also a billet of iron was heated to abright red heat and smaller items placed on it .Blueing is a byproduct of heat treatment and became decrotive on swords from approx 1500 AD onwards. There are various colours you can acheive by heating,
very pale straw yellow 430 deg
darker yellow 440 deg
straw colour 470 deg
brownish yellow 500 deg
yellow tinged purple 520 deg
light purple 530 deg
dark purple 550 deg
dark blue 570 deg
pale blue 600 deg
pale blue tinge of green 630 deg
As you can see temprature change can be rapid so you need a keen eye for this method ,you must take the piece out from heat at the right time or it will still continue to change colour before it cools . But the tempratures involved are not that great hence the use of ovens, the billet method is still used to heat treat hunting knifes.
Instead of heating the forge or putting the living room fire on I used a simple heating torch and watched the colour change but you can still have the same over heating problems.It took me 2 attemps to get the gaurd right.This was made easy because the pommel and gaurd were not attached to blade I hope this is not to much waffle about the process.
Regards Brennivs
Marcvs ther are few different ways to blue,since some groups are now blueing Cassis and Loricas.In medieval times a oven was built next to the forge so this also could have been done in a roman fabrica as well.Also a billet of iron was heated to abright red heat and smaller items placed on it .Blueing is a byproduct of heat treatment and became decrotive on swords from approx 1500 AD onwards. There are various colours you can acheive by heating,
very pale straw yellow 430 deg
darker yellow 440 deg
straw colour 470 deg
brownish yellow 500 deg
yellow tinged purple 520 deg
light purple 530 deg
dark purple 550 deg
dark blue 570 deg
pale blue 600 deg
pale blue tinge of green 630 deg
As you can see temprature change can be rapid so you need a keen eye for this method ,you must take the piece out from heat at the right time or it will still continue to change colour before it cools . But the tempratures involved are not that great hence the use of ovens, the billet method is still used to heat treat hunting knifes.
Instead of heating the forge or putting the living room fire on I used a simple heating torch and watched the colour change but you can still have the same over heating problems.It took me 2 attemps to get the gaurd right.This was made easy because the pommel and gaurd were not attached to blade I hope this is not to much waffle about the process.
Regards Brennivs
Woe Ye The Vanquished
Brennvs 390 BC
When you have all this why do you envy our mud huts
Caratacvs
Centvrio Princeps Brennivs COH I Dacorivm (Roma Antiqvia)
Brennvs 390 BC
When you have all this why do you envy our mud huts
Caratacvs
Centvrio Princeps Brennivs COH I Dacorivm (Roma Antiqvia)