Customization: | Available |
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Type: | Steel Plate |
Standard: | ASTM |
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36NiCrMo4 round steel
G43400 round steel
817M40 round steel
40NCD3 round steel
round steel (commonly quenched steel)\ high hardenability Main uses: high strength parts such as aero engine shaft, shaft, gear, fastener and so on.
Chemical composition of SNCM439 round steel
Carbon C 0.37~0.44
Si 0.17~0.37
Manganese Mn 0.50 ~ 0.80
Allowable residual content of sulfur S ≤0.025
Allowable residual content of P ≤0.025
Cr 0.60 ~ 0.90
Ni 1.25 ~ 1.65
Allowable residual Cu content ≤0.25
Molybdenum Mo 0.15 ~ 0.25
Mechanical properties of
36NiCrMo4 round steel
G43400 round steel
817M40 round steel
40NCD3 round steel
Tensile strength σb (MPa) : ≥980(100)
Yield strength σs (MPa) : ≥835(85)
Elongation δ5 (%) : ≥12
Reduction rate of cross-section (%) : ≥55
Impact work Aku (J) : ≥78
Impact toughness value αkv (J/cm²) : ≥98(10)
36NiCrMo4 round steel
G43400 round steel
817M40 round steel
40NCD3 round steel
round steel sample size: sample blank size is 25mm
Heat treatment: quenching 850 degrees; Coolant: oil; Tempering temperature 600 degrees; Coolant: water, oil);
Steel annealing or high temperature tempering supply state Brinell hardness GBW≤269;
Scope of application
36NiCrMo4 round steel
G43400 round steel
817M40 round steel
40NCD3 round steel
ound steel is generally made of important parts with high strength and good plasticity. After nitriding, important parts with special performance requirements are made, such as shafts, gears, fasteners, etc.
Theoretical weight editor broadcast
Round steel: Weight (kg)=0.00000785 (joint steel density) * Radius * Radius *3.14* Length (mm)
36NiCrMo4 round steel
G43400 round steel
817M40 round steel
40NCD3 round steel
round flat steel/plate: Weight (kg)=0.00000785* Thickness * side width * length