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Brand Name : | UST |
Model Number : | OD up to 8,000mm; ID up to 7,800mm; Thickness up to 500mm |
Certification : | ISO9001 |
Price : | USD 80- 1200/piece |
Supply Ability : | 800 piece/month |
Delivery Time : | Within 5-35 days |
MOQ : | one piece |
41Cr4 / 5140/40Cr professional forged steel rings
1.Application:
Used to manufacture medium speed and medium load parts after
quenched and tempered, such as gear, shaft, worm, spline shaft,
centre sleeve, etc.
Used to manufacture high hardness surface and wear resistance parts
after high frequency case hardening and tempered, such as gear,
main shaft, bent axle, mandrel, sleeve, pin, connecting rod, screw,
nut, etc.
Chemical property:
C 0.37~0.44
Si 0.17~0.37
Mn 0.50~0.80
Cr 0.80~1.10
Ni ≤0.030
P ≤0.035
S ≤0.035
CU ≤0.030
Heat treatment:
The first quench heating temperature (850 ℃) :; Cooling agent: oil
The second quench heating temperature (℃) :-
Tempering heating temperature (520 ℃) :; Cooling agent: water, oil
Tensile strength (sigma b/MPa) : ≧ 980
The yield point (sigma s/MPa) : ≧ 785
Elongation (delta 5 / epigastric %) : ≧ 9
Section shrinkage rate (%) : ψ / ≧ 45
Impact absorption power (Aku2 / J) : ≧ 47
Brinell hardness (HBS100/3000) (annealing or high temperature
tempering state) : ≦ 207
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