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| Place of Origin | Jiangsu China |
| Brand Name | Guangda |
| Certification | DNV, BV, Rina, ISO, GL, ABS, LR ,CCS ,PED |
C55 1.0535 C55E 1.1203 forged round bar carbon steel round bar steel manufactuer
C55 is a medium carbon steel is used when greater strength and hardness is desired than Si the as rolled’ condition. Extreme size accuracy, straightness and concentrically combine to minimize wear in high speed applications. Turned, ground and polished.
C55E is suitable for larger parts in vehicle manufacturing, engine and machine engineering undergoing a surface hardening (e.g. gear wheels, screws, shafts)
Forged round bar C55 1.0535 C55E 1.1203 Product features
| Material | C55 1.0535 C55E 1.1203 |
| 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 | C50 Carbon Steel Round Bar are commonly used in parts of gas turbine engines that are subject to high temperatures and require high strength, excellent high performance |
| 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 C55 1.0535 C55E 1.1203 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 | C55 | 1.0535 | 0.52-0.60 | 0.40 | 0.60-0.90 | 0.045 | 0.045 | 0.40 | 0.10 | 0.40 | 0.63 | - |
| EN10250 | C55E | 1.1203 | 0.52-0.60 | 0.40 | 0.60-0.90 | 0.035 | 0.035 | 0.40 | 0.10 | 0.40 | 0.63 | - |
Forged round bar C55 1.0535 C55E 1.1203 Permissible deviations
| Permissible deviations between the producct analysis and the limiting values given in Table 1 for the cast analysis EN10250 |
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| 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 C55 1.0535 C55E 1.1203 Mechanical properties
| Steel designation |
tR≤100mm | 100＜tR≤250mm | 250＜tR≤500mm | 500＜tR≤1000mm3) | ||||||||||||||||||||||
| Standard | Name | Number | Remin N/mm² |
Rmmin N/mm² |
A min % | KV min J | Remin N/mm² |
Rmmin N/mm² |
A min% | KV min J | Remin N/mm² |
Rmmin N/mm² |
A min % | KV min J | Remin N/mm² |
Rmmin N/mm² |
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) | |||||||||||
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EN 10250 |
C55 | 1.0535 | 330 | 640 | 12 | - | - | - | 300 | 620 | 12 | 9 | - | - | 260 | 600 | 12 | 9 | - | - | 250 | 290 | 11 | 8 | - | - |
|
EN 10250 |
C55E | 1.1203 | 330 | 640 | 12 | - | - | - | 300 | 620 | 12 | 9 | - | - | 260 | 600 | 12 | 9 | - | - | 250 | 290 | 11 | 8 | - | - |
Forged round bar C55 1.0535 C55E 1.1203 Heat treatment
| Heat treatment EN10250 |
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| Steel designation | Quenching temperature ℃ |
Cooling medium |
Tempering temperature ℃ |
Normalizing temperature ℃ |
|
| Name | Number | ||||
| C55 | 1.0535 | 805 to 845 | Oil or water | 550 to 660 | 825-865 |
| C55E | 1.1203 | 805 to 845 | Oil or water | 550 to 660 | 825-865 |
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