10S20 (1.0726)

Features and Application Range

The mechanical properties of 10S20 (1.0726) steel exhibit significant anisotropy. The longitudinal mechanical properties of the cold drawn steel are nearly equivalent to those of cold drawn 15 steel, often used as a substitute for 15 steel to manufacture various components with low mechanical property requirements, such as bolts, nuts, pins, shafts, tube joints, and spark plug housings.

Chemical Composition
Carbon (C): 0.07～0.13

Silicon (Si): ≤0.40

Manganese (Mn): 0.70～1.10

Sulfur (S): 0.15～0.25

Phosphorus (P): ≤0.06
 

Mechanical Properties
Tensile Strength σb (MPa): (Hot Rolled) 390-540; (Cold Drawn) steel thickness or diameter: 8-20mm: 530-755; >20-30mm: 510-735; >30mm: 490-685

Tensile Elongation δ5 (%)：(Hot rolled) ≥22; (Cold rolled) ≥7.0

Section reduction rate ψ (%): (Hot rolled) ≥ 36

Hardness: (Hot Rolled) ≤170HB; (Cold Drawn) 152-217HB