Mechanical Properties and Chemical Composition of AISI 8620 Seamless Steel Pipe

Hit：162026-02-26 16:26:19　

Mechanical Properties and Chemical Composition of AISI 8620 Seamless Steel Pipe
mechanical properties
The mechanical properties of AISI 8620 are as follows:
· Tensile Strength (Ultimate): 530 MPa
· Yield strength (Yield): 385 MPa
Young's modulus (E): 190 - 210 GPa
· Bulk modulus (K): 140 GPa
Shear modulus (G): 80 GPa
· Elongation: 10%
· Sectional reduction: 35%
Poisson's ratio (ν): 0.27 - 0.30
· Brinell hardness: 149
· Izod impact value: 115 J
Chemical composition
The chemical composition of AISI 8620 is as follows:
Iron (Fe): 96.895% - 98.02%
· Carbon (C): 0.18% - 0.23%
· Manganese (Mn): 0.70% - 0.90%
· Nickel (Ni): 0.40% - 0.70%
· Chromium (Cr): 0.40% - 0.60%
· Silicon (Si): 0.15% - 0.35%
· Molybdenum (Mo): 0.15% - 0.25%
· Phosphorus (P): ≤ 0.035%
· Sulfur (S): ≤ 0.04%
Heat treatment
AISI 8620 can be heat-treated through quenching or normalizing to achieve the desired mechanical properties. After heat treatment, its tensile strength can reach 545 MPa to 795 MPa. The specific heat treatment parameters are as follows:
Normalizing temperature: 870-930 °C (1600-1700 °F)
Annealing temperature: 860 °C (1575 °F)
Carburizing temperature: 930 °C (1700 °F)
· Reheating temperature: 775-840 °C (1425-1550 °F)
AISI 8620 is an alloy steel widely used in various industrial fields, highly favored for its excellent strength, hardness, and wear resistance.