JIS S45C
JIS S45C is a Japanese standard for carbon steel grade that is widely used in various industrial applications. It is a medium carbon steel grade with a carbon content of 0.42-0.48%, and it has good wear resistance, toughness, and ductility. JIS S45C steel is versatile and commonly used in manufacturing machinery parts, forging, and die-cutting industries, as well as in the automotive and construction industries. It is often used for shafts, gears, sprockets, and other components that require high strength and durability.
Here are a few of the product specifications:
1. Chemical composition: C: 0.42-0.48, Si: 0.15-0.35, Mn: 0.6-0.9, P≤0.03, S≤0.035.
2. Mechanical properties: tensile strength ≥686 MPa, yield strength ≥490 MPa, elongation ≥17%.
3. Machining performance: easy to cut, forge and quench, surface hardness can reach 50-55 HRC.
4. Application: It can be used to manufacture various mechanical parts and components, such as shafts, gears, dowel, bolts, etc.
Standard Compare
| JUTHA WAN | JIS | AISI/SAE | DIN |
|---|---|---|---|
| S45C | S45C | 1045 | 1.119 (CK45) |
1045 Chemical composition
| standard | grade | C | Si | Mn | P | S | Cr |
| ASTM A29 | 1045 | 0.43-0.50 | —— | 0.60-0.90 | ≤0.04 | ≤0.05 | —— |
| EN 10083-2 | C45 | 0.42-0.50 | ≤0.04 | 0.50-0.90 | ≤0.03 | ≤0.035 | ≤0.4 |
| 1.1191 | |||||||
| JIS G4051 | S45C | 0.42-0.48 | 0.15-0.35 | 0.60-0.90 | ≤0.03 | ≤0.035 | —— |
1045 Physical properties
| density，g/cm3 | 7.87 |
| melting point°C | 1495 |
| elasticity modulus，psi | 29 x 10^6 |
| coefficient of thermal expansion，68-212˚F，/˚F | 6.39 x 10^-6 |
| heat conductivity，Btu/ft hr ˚F | 30 |
| specific heat，Btu/lb ˚F | 0.116 |
| Resistivity, microohms | 6.42 |
1045 Mechanical properties
| sectional dimension mm | ≤ 16 | 17 – 40 | 41 – 100 |
| strength of extension Mpa | 700-850 | 6500-800 | 630-780 |
| yield strength Mpa | ≥ 500 | ≥430 | ≥ 370 |
| 50mm elongation % | ≥ 14 | ≥ 16 | ≥ 17 |
| Impact charpy J | ≥ 30 | ≥ 30 | ≥ 30 |
| hardness HB | 210-245 | 195-235 | 185-230 |
Note: 820 water quenched ØC -850 øC or oil quenched at 830 °C-860°C and tempered between 540 °C- 680 °C
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