A world made of metal


How Stainless Steel Was Invented

Stainless Steel is more than just steel thatspectacular. Not only was the steel resistant
doesn't stain! It is an umbrella term thatto  corrosion,  it  did  not  even  stain.
covers various types of steel that are
resistant to corrosion. There are at leastBrearley realised that this new mix would be
two claims to the title of inventor, one fromideal for a much wider range of products than
the UK and one from Sweden. The most likelyjust rifles, especially goods where staining
inventor is Harry Brearley, the son of aand corrosion were big problems. One such
steel melter. Harry, who was born inproduct area was cutlery. At first Harry's
Sheffield in 1871, studied the properties ofbosses did not see the potential, in fact,
steel and the effects that various productionnot until he personally arranged for a
processes  had  on  it.cutler, R.F. Mosley, to produce some knives.
The manager of Mosley, Ernest Stuart,
In 1908, two large steel firms set up areferred to the knives as "stainless" and the
research company called Brown Firthterm has stuck ever since. Up until the
Laboratories and asked Harry to head it up.introduction of stainless steel, cutlery and
It's job would be to improve productionother steel products had to be constantly
processes. One of the problems he was askedcleaned and dried thoroughly in order prevent
to solve was the erosion of rifle barrelsrust  corrosion.
through the effects of heat and discharge
gasses.Ever since, stainless steel has stood for
robustness, longevity and hygiene. A good
Brearley's experiments centred on theexample is the SE22 Insectocutor fly killer
addition of chromium and carbon. Steels withmachine. The stainless steel construction
chromium as an ingredient tended to have arepresents high quality and is particularly
higher melting point and this suggested thatappropriate to such a top range product as
chromium may also produce a more robust andthis. Insectocutor has led the way in fly
corrosion-resistant steel. After some trialkilling technology since the 60's. Inferior
and error, in 1913 he produced a steel with aplastic products have come and gone but the
12.8% chromium content along with 0.24%solid steel machines of Insectocutor have
carbon.always proved to be supremely robust and
reliable. The use of stainless steel for
He subjected the samples that were producedmodels such as the SE22 further distinguishes
to various chemicals, including acid thatthe Insectocutor offer compared to the
would corrode standard steel along withplastic alternatives, such is the quality of
vinegar and citrus juice. The results werestainless steel. Thank you Harry!



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