Carbon Steel S50C Hot Rolled Coil, Available from Single Sheet (Price and Hardness Specifications)

Hot-rolled plate 50# (i.e., Grade 50 steel) is a high-quality carbon structural steel widely used in machining, automotive manufacturing, and other fields. Below is its key information:

1. Material Properties

• Chemical Composition: Carbon content 0.47-0.55%, silicon content 0.17-0.37%, with high tensile strength (≥630MPa)².
• Heat Treatment Process: Typically normalized or quenched + tempered to optimize mechanical properties².
• Surface Treatment: Pickling process removes oxide layers, surface roughness controlled at Ra0.8-1.6μm, suitable for high-precision coating or plating requirements².

2. Application Scenarios

• Automotive Components: Commonly used in critical load-bearing parts such as brake pedals and clutch components. In lightweight design for new energy vehicles, weight reduction of 35% can be achieved by thinning the plate².
• Stamping Processing: In complex processes like sharp-angle stamping, high-wear-resistant materials (e.g., 8566 alloy) are required to extend punch life and prevent cracking issues¹.
• Mechanical Structural Parts: Suitable for high-strength mechanical components such as gears and transmission shafts.
  
• 
  

• Application Fields

  • Mechanical Parts: Wear-resistant components such as gears, transmission shafts, rollers, and friction discs¹².
  • Mold Manufacturing: Mold bases, plastic mold frame plates, requiring tempering to 19-22HRC to improve machinability¹³.
  • Automotive Industry: Medium-load parts such as brake pedals and clutch components²³.