34CrAINi7-10 round steel is the European standard steel number, which belongs to the medium carbon alloy structural steel and high-quality nitriding steel. Different from the domestic 38CrMoAI material, the steel composition has about 1.0% more nickel element (Ni), and there is no corresponding grade. (More special steel can pay attention to me oh) Gulas has German standard 34CrAINi7-10 hot-rolled annealed round steel, forged bar and other specifications.
European standard implementation standard: EN10085-2004
Corresponding brand: 1.8550
Chemical elements:
Carbon C: 0.30-0.37
Silicon Si: ≤0.40
Manganese Mn: 0.40-0.70
P: ≤0.025
Sulfur S: ≤0.035
Chromium Cr: 1.50-1.80
Aluminum: 0.80-1.20
Molybdenum Mo: 0.15-0.25
Nickel: 0.85-1.15
34CrAINi7-10 Hot rolled round rod picture
Mechanical properties:
Tensile strength PM (MPa) : ≥800
Yield strength Rp0.2 (MPa) : ≥600
Impact power Kv/Ku(J) : ≥30
Elongation A (%) : ≥10
34CrAINi7-10 Forging annealing round steel picture
Purpose:
Commonly used in steam turbine key parts such as: main oil pump gear, extruder screw, screw and so on.