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AISI 4427
Category Steel
Class Alloy steel
Type Standard
Common Names Molybdenum steel
Designations  United States: ASTM A519 , SAE J404 , SAE J412 , SAE J470 , UNS G44270

Composition

ElementWeight %
C  0.24-0.29 
Mn  0.70-0.90 
P  0.035 (max) 
S  0.04 (max) 
Si  0.15-0.30 
Mo  0.35-0.45 

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  
Glossary