1. Key Properties:
Medium Carbon Content: SAE 1030 is a medium-carbon steel, offering a good balance of strength and ductility. It is stronger than low-carbon steels and can be hardened by heat treatment.
Good Machinability: SAE 1030 provides good machinability, allowing for efficient manufacturing and processing, making it easy to shape into various components.
Moderate Strength: Offers moderate tensile and yield strength, making it suitable for applications where moderate strength is needed without extreme stress conditions.
Weldability: It has good weldability in thinner sections, though preheating may be required for thicker sections to prevent cracking and ensure quality welds.
Moderate Toughness: While not as tough as low-alloy steels, SAE 1030 provides reasonable toughness, which is suitable for many general engineering applications.
Corrosion Resistance: SAE 1030 has moderate resistance to corrosion, which can be improved with surface coatings or treatment in more aggressive environments.
2. Applications/Industries:
Automotive: SAE 1030 is commonly used for automotive parts such as gears, shafts, and axles, where moderate strength and toughness are required.
Heavy Machinery: It is used in heavy machinery for parts like gears, spindles, and connecting rods that experience moderate stress.
Manufacturing: Commonly found in manufacturing applications for components like structural rods, mechanical parts, and fasteners.
General Engineering: Often used for general engineering applications, such as brackets, shafts, and other medium-strength structural components.
Agricultural Equipment: Due to its machinability and moderate strength, SAE 1030 is used in agricultural machinery components like driveshafts, bearings, and gears.
3. Certifications/Standards:
SAE J403: SAE 1030 conforms to the SAE J403 standard for medium-carbon steels, ensuring it meets the required chemical composition and mechanical properties.
ASTM A519: This standard applies to seamless carbon and alloy steel mechanical tubing, which is relevant for SAE 1030 seamless pipes.
ISO 9001: Quality management system certification.
4. Chemical Composition:
Carbon (C): 0.28% – 0.34%
Manganese (Mn): 0.60% – 0.90%
Silicon (Si): 0.15% – 0.35%
Phosphorus (P): 0.040% max
Sulfur (S): 0.050% max
Iron (Fe): Balance
5. Technical Specifications:
Yield Strength:
SAE 1030: 275 MPa (minimum)
Tensile Strength:
SAE 1030: 440–590 MPa
Hardness:
SAE 1030: Approximately 160–220 HB (Brinell hardness), depending on the heat treatment.