Model Number: hot rolled steel round bar-40 Key Specifications/Special Features: Hot rolled alloy steel round bars DIN 52100 100Cr6 GCr151.Specification:Diameter: 10-320mmLength: as your request2.Chemical composition(%):C: 0.95-1.05Mn: 0.25-0.45Si: 0.15-0.35P: ≤0.025S: ≤0.025Cr: 1.40-1.65Mo: ≤0.10Ni: ≤0.30
3.Heat treatment:
Soft annealing: heat to 680-720°C, cool slowly
Hardness after annealing: max. 241 HB
Hardening: 820 - 850°C
Normalizing temperature: 840-880°C
Tempering: 540-680°C

4.Delivery condition:
Hot rolled or hot forged, spheroidizing annealing, black surface.

5.Processing:
EAF+LF+VD+(ESR), rolled/forged, annealed/Q+T, black/peeled/turned, UT tested

6.Application:
Stable elements,low harmful elements, high-purity steel, evenly carbides, fewer surface defects, when using with wide range of plastic processing, heat treatment with stable quality, high and evenly hardness, good wear resistance, high strength of contact fatigue, excellent cutting and processability. Foodstuff, gas, metallurgy, biology, electron, chemical and more.

Special steel, tool steel, die & mold steel, alliance with many well-known companies in China.

7.Service principle: harmony, communication, celerity, accuracy