S45C / 1045
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
Specification
| TAIWAN - CNS |
CHINA - GB |
JAPAN - JIS |
USA - ASTM |
GERMANY - DIN |
| S45C |
45 |
S45C |
1045 |
C45, Ck45, Cf45 |
Product Specification
| Shape |
Size |
| Round Bar |
13 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 36 38 40 42 44 45 46 48 50 53 55 57 60 62 65 67 70 72 75 78 80 82 85 87 90 92 95 100 103 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 200 210 220 230 240 250 260 270 280 290 295 305 315 325 335 345 355 365 375 385 395 405 415 425 435 445 455 465 475 485 495 505 515 525 535 545 555 565 575 585 595 605 |
Product Feature
Mechanical parts and structual steel.
Heat treatment conditions
| Annealing |
Normalize |
Quench |
Tempering |
| 880 Furnace cooling |
880~ 870 Air cooling |
820~ 870 Water cooling |
550~ 650 prompt cooling |
Mechanical properties
(1) Material
| Tensile strength kgf/mm² |
Yield strength kgf/mm² |
Elongation % |
Cross section reduction rate % |
Hardness Hb |
| ≧58 |
≧35 |
≧20 |
≧45 |
167~229 |
(2) After heat treatment
| Tensile strength kgf/mm² |
Yield strength kgf/mm² |
Elongation % |
Cross section reduction rate % |
Hardness Hb |
| ≧70 |
≧50 |
≧17 |
≧45 |
201~269 |