Supply the US Fen cola 1095 spring steel 1095 spring steel 1095 spring steel

Steel strength spring steel, hardness, elasticity and hardenability higher than other steels, with thermal sensitivity and tendency to temper brittleness, water quenching have a crack tendency. Annealed machinability can still be cold plastic deformation low, poor welding. By moderate load plate spring, 7-20mm diameter coil spring and spring washer spring ring. High wear resistance parts, such as grinding machine spindle, collet chuck. Precision machine screw. Cutter. Spiral roller bearing on the collar. Railroad rails and other. The chemical composition of the spring steel chemical composition: Carbon C: 0.63 ~ 0.65 Si Si: 0.19 ~ 0.22 Manganese Mn: 0.98 ~ 1.1 sulfur S: ≤0.01 phosphorus P: ≤0.014 chromium Cr: ≤0.2 Ni-Ni: ≤0.02 copper Cu: ≤0.05 GB spring steel chemical composition: Carbon C: 0.62 ~ 0.70 Si Si: 0.17 ~ 0.37 Manganese Mn: 0.90 ~ 1.20 Sulfur S: ≤0.035 phosphorus P: ≤0.035 chromium Cr: ≤0.25 Ni-Ni: ≤0.30 copper Cu: ≤0.25 mechanics Properties (thickness less than 3.0mm) Tensile strength σb (MPa): 825 ~ 925 yield strength σs (MPa): 520 ~ 690 Elongation δ10 (%): 14 ~ 21.5 Reduction of area ψ (%): not less than 10 Hardness: hot hardness: 240 ~ 270HB hardness of cold-rolled soft state: 190 ~ 220HB cold-hard state hardness: 300 ~ 340HB heat treatment Hardness: 38 ~ 60HRC Quenching by 830 ℃ ± 20 ℃, oil cooling; tempering 540 ℃ ± 50 ℃ (when special needs, ± 30 ℃). Delivery status of hot-rolled steel to heat treatment or heat treatment delivery, cold-drawn steel to heat treatment delivery. ) * 1250 * C Laiwu Steel / HRC / hot plate