MIL-HDBK-1890 Inspection of Welded JointsThis handbook gives guidance for nondestructive inspection of welded joints. This handbook is for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply.

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MIL-HDBK-1890(AT)

1.  SCOPE

1.1  Scope.  This handbook gives guidance for nondestructive inspection of welded joints. This handbook is for guidance only.  This handbook cannot be cited as a requirement.  If it is, the contractor does not have to comply.

1.2  Purpose.  This handbook covers the inspection of the five basic types of welded joints used in the manufacture of gas turbine tank engine components.  The types of joints referenced are:

a.  Butt

b.  Corner c.  Edge

d.  Lap e.  Tee

1.3  Welding processes.  Processes categorized within groups that are incorporated in this handbook are as follows:

1.4  Classification.  Weld joints should be classified as follows:

Class 1        - Joints subject to high stress or fatigue loading.

Class 2        - Joints subject to intermediate stresses or fatigue loading. Class 3        - Joints subject to intermediate stresses.

Class 4        - Joints subject to low stresses.

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