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760 Steel l AISI 1045 l S45C l DINCK45 l 1.1191 l EN43
S45C Carbon Steel is a medium tensile, low hardenability machinery steel widely used in various industrial applications. Typically supplied in a hot rolled condition, it boasts a tensile strength range of 600 - 950 MPa and a Brinell hardness range of 179 - 280.
Key Characteristics of S45C Carbon Steel:
Strength and Impact Properties: S45C exhibits good strength and impact properties, making it suitable for demanding applications.
Machinability: With its good machinability, S45C allows for ease of shaping and fabrication.
Weldability: It offers reasonable weldability in its as-supplied condition, enhancing versatility in manufacturing processes.
Through Hardening and Tempering:
S45C has a low through hardening capability, through hardening and tempering processes can further enhance its mechanical properties.
Surface Hardening Techniques:
While S45C may have limitations in through hardening, it can be successfully flame or induction hardened in its as-supplied condition, depending on various factors such as quenching medium, setup, and section size. Core strengths remain unchanged in this process.
Optimized Performance for Diverse Applications:
Whether in automotive, machinery, or tooling industries, S45C carbon steel delivers optimized performance, durability, and reliability.
Conclusion:
S45C Carbon Steel stands as a versatile and reliable choice for applications requiring medium tensile strength and machinability. Its properties and performance make it a preferred material in various industrial sectors.
For quality S45C carbon steel products and expert advice, contact United Metal Holdings (SC) Sdn Bhd. Let us help you find the perfect solution for your project needs.
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For more information about our 760 Steel l AISI 1045 l S45C l DINCK45 l 1.1191 l EN43 and other steel products, contact us today. Our knowledgeable team is ready to assist you with product inquiries, pricing, and technical support.
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| Typical Mechanical Properties - Hot Rolled Condition | |||
|---|---|---|---|
| Tensile Strength Mpa | Yield Strength Mpa | Elongation In 50mm % | Hardness Brinell HB |
| 570 - 700 | 300 - 450 | 20 - 25 | 170 - 210 |
| Typical Mechanical Properties - Normalised Condition | |||||
|---|---|---|---|---|---|
| Tensile Strength Mpa | Yield Strength Mpa | Elongation In 50mm % | Impact Izod J | Hardness | |
| HB | Rc | ||||
| 640 | 410 | 22 | 54 | 187 | 10 |
| DIN | AISI | JIS | Chemical Composition | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Co | Cr | Mo | Ni | V | W | Cu | |||
| 1045CM | S45CM | 0.42 to 0.48 | 0.20 to 0.35 | 0.60 to 0.90 | < 0.030 | < 0.035 | - | 0.33 - 0.36 | - | 0.02 | - | - | 0.02 | |
Forging
Pre heat to 750 oC - 800 oC, then continue heating to 1100 oC - 1200 oC maximum, hold until temperature is uniform throughout the section and commence forging immediately.
Do not forge below 850 oC
Finished forgings may be air cooled.
Heat Treatment
Annealing
Heat to 800 oC - 850 oC hold until temperature is uniform throughout the section, and cool in furnace.
Flame or Induction Hardening
Heat as quickly as possible to the austenitic temperature range (820 oC - 860 oC) and required case depth followed by an immediate water or oil quench, depending upon hardness required, workpiece size/shape and quenching arrangements.
Following quenching to hand warm, most components should be tempered at 150 oC - 200 oC to remove quenching stresses in the case. This will have little effect on case hardness.
Hardening
Heat to 820 oC - 850 oC hold until temperature is uniform throughout the section, soak for 10 - 15 minutes per 25mm of section, and quench in water or brine. or:Heat to 830 oC - 860 oC soak as above and quench in oil.
Temper immediately while still hand warm.
Normalizing
Heat to 870 oC - 920 oC hold until temperature is uniform throughout the section, soak for 10 - 15 minutes.
Cool in still air.
Stress Relieving
Heat to 550 oC - 660 oC hold until temperature is uniform throughout the section, soak for 1 hour per 25mm of section, and cool in still air.
Tempering
Re heat to 400 oC - 650 oC as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25mm of section, and cool in still air.
Notes on Heat Treatment
Heating temperatures, rate of heating, cooling and soaking times will vary due to factors such as work piece size/shape, also furnace type employed, quenching medium and work piece transfer facilities etc.
