SAE1055 C55 1.0535 Forged Carbon Steel Bar
SAE1055, C55, and 1.0535 are all specifications for a type of forged carbon steel bar commonly used in a variety of industrial applications. It is a medium carbon steel with a carbon content ranging from 0.50% to 0.60%, which provides both strength and toughness. The steel is typically forged to improve its properties and then heat treated for further strengthening. The resulting bar has high tensile strength, good wear resistance, and good machinability. It is often used in automotive and construction industries for applications such as gears, crankshafts, and axles.
The following are the product specifications of SAE1055 C55 1.0535 forged carbon steel bar:
1. Chemical composition: C: 0.50 0.60%, Si: 0.15 0.35%, Mn: 0.60 0.90%, P: 0.030% Max. S: 0.035% Max.
2. Mechanical properties: tensile strength 550-650MPa, yield strength 345MPa, elongation 12-16%, neck shrinkage rate of more than 40%.
3. Size: diameter 12mm-300mm.
4. Process materials: forging, heat treatment, surface sandblasting or polishing.
5. Application field: Suitable for manufacturing various mechanical components and parts, such as bearings, gears, tie rods, connecting rods, etc.
| Chemical Composition | ||||||||
| National Standard |
Grade | C | Si | Mn | Cr | Mo | P | S |
| DIN | C55 (1.0535) |
0.52-0.6 | ≤0.4 | 0.6-0.9 | ≤0.4 | ≤0.1 | ≤0.035 | ≤0.035 |
| AISI/SAE | 1055 | 0.5-0.6 | 0.07-0.6 | 0.6-0.9 | – | – | ≤0.04 | ≤0.05 |
| JIS | S55C | 0.52-0.58 | 0.15-0.35 | 0.6-0.9 | ≤0.2 | – | ≤0.03 | ≤0.035 |
| GB | 55 | 0.52-0.6 | 0.17-0.37 | 0.5-0.8 | ≤0.25 | – | ≤0.035 | ≤0.035 |
| Size&Tolerance&Process | ||||
| Shape | Size(mm) | Process | Tolerance | Length(mm) |
| Round | Φ6-Φ50 | Cold Drawn | H11 | 3000-5800 |
| Round | Φ40-Φ300 | Hot Rolled | -0/+3mm | 3000-10000 |
| Round | Φ120-Φ1000 | Hot Forged | -0/+3mm | 3000-10000 |
| Flat/Square/Block | Thickness:120-800 Width:120-1500 |
Hot Forged | -0/+3mm | 500-6000 |
Mechanical Property( for reference only)
1. Tensile strength: tensile strength is about 600-800mpa. This means that the material can withstand a considerable amount of force or stress without breaking.
2. Yield strength: yield strength is about 350-450mpa. It means that the material can withstand a certain stress or force without plastic deformation.
3. Elongation rate: the elongation rate is about 12-18%. It means that the material can be stretched to a certain extent before breaking.
4. Hardness: The hardness is about 200-250 HB. This means that the material has good wear resistance and can withstand high contact stresses.
Quality Test
1. Chemical Composition Test: This test checks the chemical composition of the steel bars to ensure that they meet the required standards. It involves analyzing the carbon, manganese, sulfur, phosphorus, and other elements in the steel.
2. Tensile Strength Test: This test measures the maximum amount of stress that the steel bar can withstand before it breaks. It is an important test as it determines the strength of the material.
3. Hardness Test: This test measures the resistance of the steel bar to indentation or scratching. It is an essential test as it determines the durability of the material.
4. Impact Test: This test measures the amount of energy that the steel bar can absorb without fracturing. It is crucial because it determines the ability of the material to withstand sudden shocks or loads.
5. Ultrasonic Test: This test detects any internal defects or flaws in the steel bars using high-frequency sound waves. It is an essential test as it ensures that the material is free from any defects that may affect its quality.
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