aisi 8620 steel
DESCRIPTION
material propertiesTRANSCRIPT
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AISI 8620 Steel, normalized (heated to 915°C air cooled), 13 mm (0.5 in.) round
Subcategory: AISI 8000 Series Steel; Ferrous Metal; Low Alloy Steel; Low Carbon Steel; Metal
Close Analogs: AISI 8620H
Key Words: AFNOR 22 NCD 2, UNI 20 NiCrMo 2, JIS SNCM 21 H, JIS SNCM 21, B.S. 805 H 20 (UK), B.S. 805 M 20 (UK), MIL SPEC MIL-S-16794, SAE J404, SAE J770, DIN 1.6523, AFNOR 20 NCD 2 (France), UNS G86200, AMS 6274, AMS 6276, AMS 6277, ASTM A322, ASTM A331, ASTM A505, ASTM A541
Material Notes: Normalized: heated to 915°C (1675°F), air cooled.
References for this datasheet.
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Component Wt. %
C 0.18 - 0.23
Cr 0.4 - 0.6
Fe 96.9 - 98.02
Component Wt. %
Mn 0.7 - 0.9
Mo 0.15 - 0.25
Ni 0.4 - 0.7
Component Wt. %
P Max 0.035
S Max 0.04
Si 0.15 - 0.35
Physical Properties Metric English Comments
Density 7.85 g/cc 0.284 lb/in³
Mechanical Properties
Hardness, Brinell 197 197
Hardness, Knoop 219 219 Converted from Brinell hardness.
Hardness, Rockwell B 92 92 Converted from Brinell hardness.
Hardness, Rockwell C 13 13 Converted from Brinell hardness. Value below normal HRC range, for comparison only.
Hardness, Vickers 207 207 Converted from Brinell hardness.
Tensile Strength, Ultimate 660 MPa 95700 psi
Tensile Strength, Yield 370 MPa 53700 psi
Elongation at Break 26.3 % 26.3 % in 50 mm.
Reduction of Area 62.5 % 62.5 %
Modulus of Elasticity 205 GPa 29700 ksi Typical for steel
Bulk Modulus 140 GPa 20300 ksi Typical for steel
Poisson's Ratio 0.29 0.29 Calculated
Machinability 65 % 65 % hot rolled and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus 80 GPa 11600 ksi Typical for steel.
Electrical Properties
Electrical Resistivity 2.34e-005 ohm-cm 2.34e-005 ohm-cm Typical steel
Thermal Properties
Specific Heat Capacity 0.475 J/g-°C 0.114 BTU/lb-°F Typical steel
Thermal Conductivity 46.6 W/m-K 323 BTU-in/hr-ft²-°F Typical steel
Page 1 of 2ASM Material Data Sheet
17.Jan.11http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=M862BC
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Page 2 of 2ASM Material Data Sheet
17.Jan.11http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=M862BC