استاندارد ASTM A 983 در خصوص Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines - پروژه ها

استاندارد ASTM A 983 در خصوص Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

استاندارد ASTM A 983در خصوص
Continuous Grain Flow Forged Carbon and Alloy Steel
Crankshafts for Medium Speed Diesel Engines
 
 
Scope1.1 This specification covers continuous grain flow forged carbon and alloy steel crankshafts for medium speed diesel and natural gas engines.1.2 The steel used in the manufacture of the forgings is required to be vacuum degassed.1.3 Provision is made for treatment of designated surfaces of the crankshaft to provide enhanced fatigue strength, or wearresistance, or both.1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards. Within the text and tables the SI units are shown in brackets. The values stated in each system are not exact equivalents, therefore each system…