Zhangjiagang Guangda Special Material Co., Ltd.
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C45 1.0503 forged round bar carbon steel round bar C45 steel bar C45 steel Manufacturer
Steel C45 Round Bar is an unalloyed medium carbon steel, which is also a general carbon engineering steel. C45 is a medium strength steel with good machinability and excellent tensile properties. C45 round steel is generally supplied in the black hot rolled or occasionally in the normalised condition, with a typical tensile strength range 570 – 700 Mpa and Brinell hardness range 170 – 210 in either condition. It does not however respond satisfactorily to nitriding due to a lack of suitable alloying elements.
Forged Round Bar 1.0503 C45 Product features
| Material | C45 1.0503 |
| Type | Forged bar ,round ,square, flat, block, shaft etc. |
| Diameter | φ150-1500mm |
| Length | Max 10000mm (10m) |
| Surface | Black, peeled, polishing, bright, sand blast, hair line, etc. |
| Application | Steel C45 bar or plate is suitable for the manufacture of parts such as gears, bolts, general-purpose axles and shafts, keys and studs. |
| Tensile strength test | DIN EN ISO 6892-1 |
| Impact test | DIN EN ISO 148-1 |
| UT | DIN EN10228 Quality-Class 3 C/c or D/d |
| Grain size | ASTM E112 / EN ISO 643 |
| Applicable standard | EN10250,EN10083,SEW550 etc |
| Certificate | EN 10204 / 3.1 3.2 |
Forged Round Bar 1.0503 C45 Chemical Compostion
| Standard | Steel designation name | Number | C | Si Max | Mn | P Max | S Max | Cr Max | Mo Max | Ni Max | Cr+Mo+Ni Max | Al Min |
| EN10250 | C45 | 1.0503 | 0.42-0.50 | 0.40 | 0.50-0.80 | 0.045 | 0.045 | 0.40 | 0.10 | 0.40 | 0.63 | - |
Forged Round Bar 1.0503 C45 Permissible deviations
| Permissible deviations between the producct analysis and the limiting values given in Table 1 for the cast analysis EN10250 | ||
| Element | Permissible maximum content in the cast analysis % | Permissible deviation % |
| Carbon | ＜0.55 | ±0.02 |
| ＞0.55 ≤0.65 | ±0.03 | |
| Silicon | ≤0.40 | ±0.03 |
| ＞0.40 | ±0.04 | |
| Manganese | ≤1.00 | ±0.04 |
| ＞1.00 ≤1.65 | ±0.06 | |
| Phosphorus | ≤0.045 | +0.005 |
| Sulfur | ≤0.045 | +0.005 |
| Chromium | ≤0.40 | +0.05 |
| Molybdenum | ≤0.10 | +0.03 |
| Nickel | ≤0.40 | +0.05 |
| Aluminium | ≥0.020 | -0.005 |
Forged Round Bar 1.0503 C45 Mechanical properties
| Mechanical properties in the normalized and normalized and tempered conditions Thickness of ruling section tR | ||||||||||||||||||||||||||
| Steel designation | tR≤100mm | 100＜tR≤250mm | 250＜tR≤500mm | 500＜tR≤1000mm3) | ||||||||||||||||||||||
| Standard | Name | Number | Re min | Rm min | A min % | KV min J | Re min | Rm min | A min% | KV min J | Re min | Rm min | A min % | KV min J | Re min | Rm min | A min% | KV min J | ||||||||
| l 1) | tr 1) | l 1) | tr 1) | l 1) | tr 1) | l 1) | tr 1) | l 1) | tr 1) | l 1) | tr 1) | l 1) | tr 1) | l 1) | tr 1) | |||||||||||
| EN10250 | C45 | 1.0503 | 305 | 580 | 16 | - | - | - | 275 | 560 | 16 | 12 | 18 | 10 | 240 | 540 | 16 | 12 | 15 | 10 | 230 | 530 | 15 | 11 | 12 | 10 |
Forged Round Bar 1.0503 C45 Heat treatment
| Heat treatment EN10250 | |||||
| Steel designation | Quenching temperature ℃ | Cooling medium | Tempering temperature ℃ | Normalizing temperature ℃ | |
| Name | Number | ||||
| C45 | 1.0503 | 820 to 860 | Water or oil | 550 to 660 | 840 to 880 |
About Guangda For forged round bar
