標準號：ASTM A372/A372M-1999
英文標準名稱：Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
國際標準分類號：77.140.85 (Iron and steel forgings)
適用范圍： Note 1-When working to the chemical and tensile requirements of this specification, the influence of wall thickness and cooling rate will necessarily eliminate certain forging sizes in each class. Note 2-Designations have been changed as follows: Current Formerly Grade A Grade B Grade C Grade D Grade E Class 55 Grade E Class 65 Grade E Class 70 Grade F Class 55 Grade F Class 65 Grade F Class 70 Grade G Class 55 Grade G Class 65 Grade G Class 70 Grade H Class 55 Grade H Class 65 Grade H Class 70 Grade J Class 55 Grade J Class 65 Grade J Class 70 Grade K Grade L Grade J Class 110 Grade M Class A Grade M Class B Type I Type II Type III Type IV Type V Grade 1 Class 55 Type V Grade 1 Class 65 Type V Grade 1 Class 70 Type V Grade 2 Class 55 Type V Grade 2 Class 65 Type V Grade 2 Class 70 Type V Grade 3 Class 55 Type V Grade 3 Class 65 Type V Grade 3 Class 70 Type V Grade 4 Class 55 Type V Grade 4 Class 65 Type V Grade 4 Class 70 Type V Grade 5 Class 55 Type V Grade 5 Class 65 Type V Grade 5 Class 70 Type VI Type VII Type VIII Type IX Class A Type IX Class B