MIL-HDBK-1265 Base Document:1998

Foreword
1. SCOPE
1.2 Scope
2 APPLICABLE DOCUMENTS
2.1 General
2.2 Government documents
2.2.1 Specifications, standards and handbooks
2.3 Non-government publications
2.4 Order of precedence
3 DEFINITIONS
3.1 Classification
3.1.1 Classes
3.1.1.1 Class 1
3.1.1.2 Class 2
3.1.1.3 Class 3
3.1.1.4 Class 4
3.1.2 Grades
3.1.2.1 Radiographic grade A
3.1.2.2 Radiographic grade B
3.1.2.3 Radiographic grade C
3.1.2.4 Radiographic grade D
3.1.2.5 Radiographic grade E
3.1.3 Criticality levels
3.2 Lot definition
3.2.1 Inspection lot
4 GENERAL REQUIREMENTS
4.1 Inspection
4.1.1 Responsibility for inspection
4.1.2 Qualification for inspection
4.1.3 Final inspection
4.1.3.1 Documentation for final inspections
5 DETAILED REQUIREMENTS
5.1 Determination of classes, grades and critically levels
5.1.1 Class 1 requirements
5.1.2 Radiographic grades
5.1.3 Criticality levels
5.2 Standards
5.2.1 Radiographic standards
5.3 Examination of resubmitted inspection lots
5.3.1 Rejection
5.3.2 Review
6 NOTES
6.1 Intended use
6.2 Producibility warning
6.3 Table notes
6.4 Subject term (key word) listing
TABLES
I Maximum permissible radiographic severity levels
         for discontinuities in thin wall steel castings
         (1 in. (25.4 mm) wall or less) per ASTM E192
II Maximum permissible radiographic severity levels
         for discontinuities in thick wall steel castings
         (2 to 4 1/2-in. (51 to 114-mm) per ASTM E186
III Maximum permissible radiographic severity levels
         for discontinuities in steel castings up to
         2 in. (51 mm) in thickness per ASTM E446
IV Maximum permissible radiographic severity levels
         for discontinuities in heavy walled (4 1/2 to 12 in)
V Sample size for inspection of class 1 castings
VI Sample size for inspection of class 2, 3, and 4
         castings
CONCLUDING MATERIAL

Gives requirements for the classification and soundness of steel castings exclusive of weld repair. It supplements detail casting specifications when specified.

This handbook prescribes the requirements for the classification and soundness of steel castings exclusive of weld repair. This handbook supplements detail casting specifications when specified. This handbook is for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply.