56Si7 / 1.5026 Spring Steel

Forms of delivery of steel circle 1.5026 / 55С2

Steel Circle 1.5026 / 55C2

Overview
Steel circle 1.5026 / 55C2 is a high-carbon silicon-manganese spring steel known for its high strength, elasticity, and impact toughness. Due to its characteristics, it is widely used in the production of springs, suspension components, and other high-strength parts.

Key Features

• High elasticity and wear resistance
• Excellent impact toughness
• Good hardenability and stability after heat treatment
• Good weldability and machinability

Chemical Composition (%):

• Carbon (C): 0.52 – 0.60
• Silicon (Si): 1.50 – 2.00
• Manganese (Mn): 0.60 – 0.90
• Phosphorus (P): ≤ 0.035
• Sulfur (S): ≤ 0.035

Mechanical Properties:

• Hardness (HB): 200–260
• Yield Strength (MPa): ≥ 600
• Tensile Strength (MPa): 1100–1300
• Elongation (%): ≥ 12
• Impact Toughness (J): ≥ 30

Applications

• Automotive Industry – production of leaf springs, shock absorbers, suspension stabilizers
• Mechanical Engineering – spring components, tools requiring high strength
• Railway Industry – production of damping elements
• Construction – mechanisms subjected to intensive loads

Advantages
✅ High strength and fatigue resistance
✅ Good thermal treatability
✅ Excellent performance under impact loads
✅ Optimal balance of hardness and elasticity

Steel 1.5026 / 55C2 is a reliable material for components operating under heavy conditions, where high wear resistance and mechanical strength are essential.