Chemical Composition
The chemical composition of AISI 8650 alloy steel is outlined in the following table.
Element Content (%) Iron, Fe 96.54-97.67 Manganese, Mn 0.750-1.00 Carbon, C 0.480-0.530 Nickel, Ni 0.400-0.700 Chromium, Cr 0.400-0.600 Silicon, Si 0.150-0.300 Molybdenum, Mo 0.150-0.250 Sulfur, S ≤ 0.0450 Phosphorous, P ≤ 0.0350
Physical Properties
The following table shows the physical properties of AISI 8650 alloy steel.
Properties Metric Imperial Density 7.85 g/cm3 0.284 lb/in³ Mechanical Properties
The mechanical properties of AISI 8650 alloy steel are displayed in the following table.
Properties Metric Imperial Tensile strength 715 MPa 104000 psi Yield strength 385 MPa 55800 psi Bulk modulus (typical for steel) 140 GPa 20300 ksi Shear modulus (typical for steel) 80.0 GPa 11600 ksi Elastic modulus 190-210 GPa 27557-30458 ksi Poisson's ratio 0.27-0.30 0.27-0.30 Elongation at break (in 50 mm) 22.50% 22.50% Hardness, Brinell 212 212 Hardness, Knoop (converted from Brinell hardness) 235 235 Hardness, Rockwell B (converted from Brinell hardness) 94 94 Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison only) 16 16 Hardness, Vickers (converted from Brinell hardness) 223 223 Machinability (annealed and cold drawn, based on 100 machinability for AISI 1212 steel) 60 60 Thermal Properties
The thermal properties of AISI 8650 alloy steel are given in the following table.
Properties Metric Imperial Thermal conductivity (typical steel) 46.6 W/mK 323 BTU in/hr.ft².°F
Other Designations
Equivalent materials to AISI 8650 alloy steel are:
PROFILE AND DIMENSIONS
- ASTM A322
- ASTM A505
- ASTM A519
- SAE J404
- SAE J412
- SAE J770
Round bar (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 500mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W10 - 1500mm X L1000-12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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