AISI 8620 Steel, single quenched and tempered (230C (450F)), carburized

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 A530

Component   Wt. %
C0.18 - 0.23 
Cr0.4 - 0.6 
Fe96.9 - 98.02 
Component   Wt. %
Mn0.7 - 0.9 
Mo0.15 - 0.25 
Ni0.4 - 0.7 
Component   Wt. %
PMax 0.035 
SMax 0.04 
Si0.15 - 0.35 

Material Notes:
Single quenched and tempered: carburized at 925C (1700F) for 8 hrs., pot cooled, reheated to 845C (1550F), quenched in agitated oil, 230C (450F) temper. 1.9 mm case depth. Core properties.

Physical PropertiesMetricEnglishComments

Mechanical Properties
Hardness, Brinell 
Hardness, Knoop Converted from Brinell hardness.
Hardness, Rockwell B Converted from Brinell hardness.
Hardness, Rockwell C case hardness.
Hardness, Vickers Converted from Brinell hardness.
Tensile Strength, Ultimate   
Tensile Strength, Yield   
Elongation at Break   in 50 mm.
Reduction of Area   
Modulus of Elasticity   Typical for steel
Bulk Modulus   Typical for steels
Poisson's Ratio Calculated
Machinability   hot rolled and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus   Typical for steel.

Electrical Properties
Electrical Resistivity   Typical steel

Thermal Properties
Specific Heat Capacity   Typical steel
Thermal Conductivity   Typical steel

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistant format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's disclaimer and terms of use regarding this information. MatWeb data and tools provided by MatWeb, LLC.