S45C is a medium strength steel. Suitable for shafts studs, keys etc. Available as rolled or normalised. Supplied as square bar, or round bar or flat. They are excelling in weldability & machinability , and they can be subjected to various heat treatments
| TAIWAN - CNS | CHINA - GB | JAPAN - JIS | USA - ASTM | GERMANY - DIN |
| S45C | 45 | S45C | 1045 | C45, Ck45, Cf45 |
Used to manufacture require high toughness and low stress machinery parts, such as lever, shaft sleeve, pin, pull rod, grab hook, etc. Used to manufacture tube and pipe parts which used in pressure <600Mpa, temperature <450° C and non corrosive. In the common and agricuture industry, used to manufacture carburizing and carbonitriding parts which only require high surface hardness.
| TAIWAN - CNS | CHINA - GB | JAPAN - JIS | USA - ASTM | GERMANY - DIN |
| S20C | 20 | S20C | 1020 | C20, Ck20, Cf20 |