20CrMnTi wire is a commonly used alloy steel wire. 20CrMnTi wire has high strength and wear resistance, can withstand high-strength stretching and severe impact, and also has excellent processing performance, good fluidity and deformability. During cutting, it undergoes normalizing treatment. Its machinability is even more satisfactory; after quenching and low-temperature tempering treatment, it can achieve good comprehensive mechanical properties and low-temperature impact toughness. After carburizing treatment, its wear resistance and bending strength are significantly improved. Provides reliable guarantee for various high-demand application scenarios.

Chemical element content (%)

Specification：2.00~42.00mm

Application: Commonly used in the manufacture of gears, gear shafts, cross shafts, gear rings, main shafts supported by sliding bearings, worms, tooth clutches, bolts, studs, etc.; widely used in automobiles, electronics, machinery and other industries.

Mechanical properties:

-Tensile strength ≥1080MPa, yield strength ≥835MPa, elongation ≥10%, cross-sectional shrinkage ≥45%, impact toughness ≥69J/cm², hardness ≤217HBW (specimen blank size is 15mm).

Note that the mechanical properties of specimens with different diameters or thicknesses may vary.

Heat treatment specifications:

-Annealing temperature is about 860-880℃, air cooling after leaving the furnace, hardness ≤217HBW;

-Normalizing temperature is 920-950℃, air cooling after leaving the furnace, hardness is 156-207HBW;

-Quenching temperature is 860-900℃, oil cooling, tempering temperature is 500-650℃, oil cooling to avoid high temperature tempering brittleness;

-Carburizing temperature is 900-920℃, quenching temperature is 820-850℃, oil cooling, hardness>60HRC; 180-200℃×1.5h tempering, air cooling, surface hardness>60HRC, core hardness is 35-40HRC.

Delivery status: Usually delivered in normalizing, annealing, high temperature tempering, or without heat treatment.