25CrMo4 high hardenability, temper brittleness, weldability is quite good, cold cracking tendency to form small, can be a good machinability and cold strain plasticity. Usually in the quenching or carburizing state use.
25CrMo4 Correspond steel:
AISI 4125,GB20CrMo
25CrMo4 chemical composition(％):
C: 0.22 ~ 0.29
Si : 0.10 ~ 0.40
Mn: 0.60 ~ 0.90
S: to allow the residual content of ≤0.035
P: allow the residual content ≤0.035
Cr: 0.9～1.2
Ni: to allow the residual content ≤0.030
Cu: to allow the residual content of ≤0.10
Mo: 0.15～0.3
25CrMo4 Mechanical Properties:
Tensile strength σb (MPa): ≥885 (90)
Yield strength σs (MPa): ≥685 (70)
Elongation δ5 (%): ≥12
Impact energy Akv (J): ≥35
Round bar : Diameter : 1mm-2000mm
Square bar :Size: 50mm * 50mm～600mm *600mm
Plate steel/flat bar :Size: Thickness: 0.1mm～800mm Width: 10mm to 1500mm
Tube/pipe: Size: OD: 6-219mm WT: 1-35 mm.
Cold-rolled sheet: Thickness: 2-5mm Width:1000mm Length: 2000mm
Hot-rolled sheet: Thickness:6-80mm Width: 210-610mm
Length: We can supply any length based on the customer's requirement.
Application:
25CrMo4 alloy steel is used in the manufacture of non-corrosive medium and temperature lower than 250 ℃, high-pressure pipes and all kinds of fasteners medium containing a mixture of nitrogen and hydrogen to work, higher carburizing parts such as gears, shafts, etc .We serve you with our honesty, integrity, and professionality .
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