1018/1.0401 Carbon Steel
AISI1018 Carbon Steel is a low carbon steel which is characterized by good weldability, good machinability, high strength and impact properties in either the normalized or hot forged condition. SAE1018/AISI1018 steel is widely used for screw machine parts, shafts, pins, spindles and rods.
Chemical Compostion Astm A29
| GRADE | C | Si | Mn | P | S |
| 1018 | 0.15-0.20 | 0.15-0.35 | 0.60-0.90 | ≤ 0.040 | ≤ 0.050 |
Forging
| Process | Temperature Range | Hold Time | Minimum Forging Temperature | Cooling Method |
|---|---|---|---|---|
| Forging of Carbon Steel | Heat to 1150-1280°C | Until uniform | 900°C | Air cooling after forging |
Heat Treatment
| Heat Treatment Process | Temperature Range | Cooling Method |
|---|---|---|
| Normalizing | 890-940°C | Air cooling |
| Annealing | 870-910°C | Furnace cooling |
| Stress Relieving | 500-700°C | Air cooling |
| Carburizing | 880-920°C | N/A |
| Core Refining | 780-820°C | Quench in water |
| Case Hardening | 780-820°C | Quench in water |
| Carbonitriding | 800-875°C | Quench and Temper as required |
Mechanical Property
| Property | Tensile Strength | Yield Point | Percentage Reduction of Area | Elongation after Fracture |
|---|---|---|---|---|
| Value | 410 MPa | 245 MPa | 55% | 25% |
Application
AISI 1018 is used in bending, crimping and swaging processes,and it is suitably used in applications that do not need high strength of alloy steels and high carbon.AISI 1018 is used to improve drilling, machining, threading and punching processes,and also can be used to prevent cracking in severe bends.
Typical Applications:
Shafts, Spindles, Pins, Rods, Sprocket assemblies, Axles, Bolts, Fixtures, Mounting plates, Spacers, Machinery parts
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