1. Key Properties:
AISI/SAE 1040 Forged + Peeled:
Forged Steel: The forging process improves the strength and toughness of the steel by aligning its grain structure, resulting in better mechanical properties than standard rolled steel.
Peeled Surface: The peeled surface enhances the steel's surface finish by removing any surface defects, such as scale, which ensures smooth and high-quality surface conditions for machining and finishing.
Medium Carbon Steel: AISI 1040 offers a good balance of strength, hardness, and ductility, making it suitable for a wide range of industrial applications.
Machinability: Forged and peeled 1040 steel offers excellent machinability and can be easily worked into mechanical components with tight tolerances.
AISI/SAE 1045 Forged + Peeled:
Improved Strength and Toughness: Compared to 1040, AISI 1045 offers higher tensile strength and improved wear resistance, making it ideal for applications that require higher performance.
Forged + Peeled: The forging process improves overall strength, while the peeling process provides a smoother surface, free from oxidation or surface imperfections.
Medium Carbon Steel: 1045 steel is commonly used for components subjected to moderate-to-high stress levels and where higher hardness is needed.
Machinability: Similar to 1040, it has good machinability, but with better strength and hardness, allowing for use in more demanding applications.
AISI/SAE 1050 Forged + Peeled:
Higher Carbon Content: AISI 1050 contains a higher carbon content compared to 1040 and 1045, providing greater strength, hardness, and wear resistance.
Forged + Peeled: The forging enhances the strength and toughness, while the peeling provides a clean, smooth finish suitable for high-precision applications.
Hardness and Strength: 1050 offers higher tensile strength and wear resistance, making it ideal for parts exposed to high mechanical stresses and wear.
Reduced Machinability: Due to the higher carbon content, 1050 may be slightly harder to machine than 1040 or 1045, but it still offers great properties for parts that require high performance.
2. Applications/Industries:
AISI/SAE 1040 Forged + Peeled:
Automotive: Ideal for components such as shafts, axles, and gears in automotive applications that require moderate strength and high precision.
Heavy Machinery: Used for manufacturing parts like bushings, gears, and structural components in heavy-duty machinery.
General Engineering: Applied in the production of mechanical parts where moderate strength and improved surface finish are needed.
AISI/SAE 1045 Forged + Peeled:
Automotive: Commonly used in parts like crankshafts, gears, and camshafts that demand higher strength and wear resistance.
Heavy Machinery: Suitable for producing parts like machine shafts, bearings, and other heavy-duty components subjected to high stresses.
General Engineering: Used for manufacturing parts requiring higher mechanical properties, such as bolts, gears, and axles.
AISI/SAE 1050 Forged + Peeled:
Automotive: Ideal for high-performance automotive components like transmission shafts, gears, and axle components.
Heavy Machinery: Used in components like crankshafts, gears, and other parts exposed to high stresses and mechanical loads.
Tools and Dies: Due to its hardness, 1050 is suitable for tools and dies that require high wear resistance and toughness.
General Engineering: Ideal for making high-strength components subjected to extreme mechanical stress, such as spindles, shafts, and axles.
3. Certifications/Standards:
AISI/SAE 1040, 1045, and 1050 Forged + Peeled are specified under SAE J403 standards, which define the chemical composition and mechanical properties of carbon steels.
ISO 9001: These grades are manufactured according to ISO 9001 standards, ensuring consistent quality, reliable production processes, and excellent mechanical properties.
4. Chemical Composition:
AISI/SAE 1040 Forged + Peeled:
Carbon (C): 0.37% – 0.44%
Manganese (Mn): 0.60% – 0.90%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
Iron (Fe): Balance
AISI/SAE 1045 Forged + Peeled:
Carbon (C): 0.43% – 0.50%
Manganese (Mn): 0.60% – 0.90%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
Iron (Fe): Balance
AISI/SAE 1050 Forged + Peeled:
Carbon (C): 0.48% – 0.55%
Manganese (Mn): 0.60% – 0.90%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
Iron (Fe): Balance
5. Technical Specifications:
AISI/SAE 1040 Forged + Peeled:
Yield Strength: ~290–400 MPa (depending on heat treatment and thickness)
Tensile Strength: ~500–700 MPa
Hardness: ~160–190 HB (Brinell hardness)
AISI/SAE 1045 Forged + Peeled:
Yield Strength: ~400–600 MPa (depending on heat treatment)
Tensile Strength: ~600–850 MPa
Hardness: ~180–220 HB (Brinell hardness)
AISI/SAE 1050 Forged + Peeled:
Yield Strength: ~450–650 MPa (depending on heat treatment)
Tensile Strength: ~700–900 MPa
Hardness: ~200–250 HB (Brinell hardness)