We can produce JIS3115 S40C steel round rods. With BEBON STEEL production experience, strict contro JIS3115 S40C steel chemical composition and JIS3115 S40C steel mechanical properties. we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.
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The equivalent standards of S45C steel
| S40C JIS G 4051 | Comparision of steel grades | |
| DIN | 1C40 | |
| AISI | 1040 | |
| UNI 7846 | - | |
| BS 970 | - | |
| UNE 36011 | - | |
| SAE J 403-AISI | - | |
Chemical Composition of S40C steel
| Grade | C | Si | Mn | P(%) max | S(%) max | Cr(%) max | Ni(%) max | Cu(%) max |
| S45C | 0.37-0.43 | 0.15-0.35 | 0.60-0.90 | 0.030 | 0.030 | 0.25 | 0.25 | 0.25 |
Mechanical Properties of S40C steel
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Tensile Strength σb(MPa)
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Yield Strength σS(MPa)
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Elon- Gation Ration δ5 (%) | Reduction of area Psi(%) | Impact merit AKV (J) | Resilient value AKV(J/cm2) | Degree of hardness | Annealed steel | Test Specimen Size (mm) |
| ≥570 | ≥335 | ≥19 | ≥45 | ≥47 | ≥59 | ≤217HB | ≤187HB | 25 |
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