AISI 1045 CARBON STEEL | C45 | S45C
As a medium tensile steel,AISI 1045 steel offers good strength, toughness,wear resistance and impact properties in either the normalized or hot rolled/forged condition.It has a tensile strength of 570 – 700 MPa and Brinell hardness range 170 to 210HB.
AISI 1045 steel has low hardening capability.However, it can be efficiently flame or induction hardened to obtain typical surface hardness up to HRC 58. nitriding is not recommended for AISI 1045 due to lack of alloy elements.This steel can be readily welded and machined providing correct procedures are followed.
AISI 1045 Steel Chemical Composition
| Grade | C | Si | Mn | P | S |
| 1045 | 0.43-0.50 | 0.15-0.35 | 0.60-0.90 | ≤0.04 | ≤0.05 |
AISI 1045 Steel Related Specifications
| Europe | Australia | China | Japan |
| C45/CK45 | 1045 | 45# | S45C |
AISI 1045 Steel Heat Treatment & Mechanical Property
- Forging: 1100 oC – 1200 oC, cooled as slowly as possible in still air or in sand after forged.
- Normalizing:870℃-920℃,Cool in air
- Annealing:800℃-850℃,Cool in furnace
- Hardening:820 – 860°C/water or oil quench
- Tempering:550°C – 660°C, cool in still air
- Stress Relieving:550°C – 660°C ,cool in still air
- Flame and Induction Hardening:830°C – 860°C,quick quench in oil or water.Temper at 150°C – 200°C will reduce stresses in the case with minimal effect on its hardness.
AISI 1045 steel Mechanical Property
| Surface Finish | Tensile Strength Mpa | Yield Strength Mpa | Elongation, % | Hardness,HB |
| Cold Drawn | 640–850 | 500–650 | ≥8 | 190–270 |
| Smooth Turned | 570–700 | 300–450 | 14 – 30 | 170–210 |
| Hot Rolled / Forged | 570–700 | 300–450 | 14 – 30 | 170–210 |
AISI 1045 Steel Quality Certification
A material test report(Inspection Certificate EN 10204 3.1) will be provided, documenting the following:
1.Chemical analysis
2.Mechanical properties
3.Surface hardness
4.Non metallic inclusion
5.Heat treatment report
6.Grain size
7.Forging ratio
8.Ultrasonic test report
Supply Size & Condition For AISI 1045
- Round Bars: Dia.80 – 1,000mm as Forged
- Flat / Square Bars: Thickness Max.800mm
- Shafts, Rollers, Blocks: Customized or According to Drawing
- Rolled Round Bars: Dia.14 – 350mm with UT Assurance
Heat treatment:Quenched and Tempered (+QT), Normalizing (+N), Annealing (+A)
Surface finish:Black / Rough turned / Peeled
