ANALISIS TEMPERING DENGAN QUENCHING MEDIA OLI MESRAN SAE 40 TERHADAP SIFAT MEKANIK POROS S 45 C
Abstract: This research
intends to know the influence of temper and quenching cooling media of oli
mesran SAE40 towards the characteristic of machine of stell S45C. The proses of
temper is conducted in 300C with the holding time 60 minute while the process
of quenching is conducted in 870C with the holding time 30 minute.The method
used in this research is descriptive. The
raw material for the specimen is stell S45C, imported by PT.TIRA
AUSTENITE. The specimen of pull test use standard JIS Z 2204 and hardness use
standard JIS Z2245.
The chemical composition testing shows that steel S45C enter in the
medium carbon steel with the content
carbon 0,44%. The result of tensile strength of steel S45C after heating by
temper-quenching by using the two different medias of temper, those are free
air which result of the tensile strength is 1096,86 N/mm2, it is higher than
oil which result is 783,38 N/mm2. However, the average elongation of free air
is 3,62% with the average contraction 32,36%. It is smaller than the average
elongation of oil that is 7,18% with the average contaction 48,96%. The average
result of strength testing temper media
of free air is 185,33 HB. It is bigger than the average result of temper test
by using oil that is 173 HB. From the result of the steel testing, the
temper-quenching by using oil as the media is suggested to be used if we want
to produce the steel with a high level
of the though, so that the steel is easier to be formed.
Penulis: Suwandono, Ahmad
Farid, Heriy Kuswanto
Kode Jurnal: jptmesindd110235
