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AISI 8615
Category Steel
Class Alloy steel
Type Standard
Common Names Nickel-chromium-molybdenum steel
Designations  United States: AMS 5333 , AMS 6270G , ASTM A322 , ASTM A505 , MIL SPEC MIL-S-866 , SAE J404 , SAE J770 , UNS G86150

Composition

ElementWeight %
C  0.13-0.18 
Mn  0.70-0.90 
P  0.035 (max) 
S  0.04 (max) 
Si  0.15-0.30 
Cr  0.40-0.60 
Ni  0.40-0.70 
Mo  0.15-0.25 

Mechanical Properties

Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 690  25  psuedocarburized at 900-925°C, box cooled, reheated at 840°C, oil quenched, tempered at 150°C  
Yield Strength (Mpa) 500 
Elongation (%) 20 
Reduction in Area (%) 58 
Glossary