Unleashing the Power of 9SMn28 Steel in Automotive Engineering

Specification:

The specification for unleashing the power of 9SMn28 steel in automotive engineering includes the following aspects:

1. Grade: 9SMn28 steel
2. Chemical composition:
– Carbon (C): 0.26-0.34%
– Silicon (Si): 0.15-0.35%
– Manganese (Mn): 0.60-0.90%
– Phosphorus (P): ≤ 0.035%
– Sulfur (S): ≤ 0.04%
– Nickel (Ni): ≤ 0.30%
– Copper (Cu): ≤ 0.30%
– Chromium (Cr): ≤ 0.30%
– Aluminium (Al): ≤ 0.05%
3. Mechanical properties:
– Tensile strength: 540-710 MPa
– Yield strength: 400-450 MPa
– Elongation: ≥ 16%
– Hardness: 165-195 HB
4. Heat treatment:
– Annealing: 820-870°C, slow cooling in the furnace
– Stress relieving: 550-600°C, slow cooling in air
– Hardening: 840-880°C, oil quenching
– Tempering: 150-200°C, air cooling
5. Applications:
– Automotive engine components (e.g., crankshafts, camshafts, connecting rods)
– Transmission components (e.g., gears, shafts)
– Suspension components (e.g., axle beams, steering knuckles)
– Other high-strength and wear-resistant automotive parts.

Chemical Composition:

The chemical composition of 9SMn28 steel typically includes the following elements:

– Carbon (C): 0.26-0.34%
– Silicon (Si): 0.15-0.35%
– Manganese (Mn): 0.60-0.90%
– Phosphorus (P): ≤ 0.035%
– Sulfur (S): ≤ 0.04%
– Nickel (Ni): ≤ 0.30%
– Copper (Cu): ≤ 0.30%
– Chromium (Cr): ≤ 0.30%
– Aluminium (Al): ≤ 0.05%

These elements contribute to the overall properties and characteristics of the steel, such as its strength, toughness, and corrosion resistance. The precise composition may vary slightly depending on the specific production process and quality standards.
9SMn28 Steel grade
1698483520