API 1107 : 1991
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hardcopy , PDF
15-02-2021
English
01-01-1991
Section 1 - General
1.1 Scope
1.2 Definition of terms
1.2.1 General
1.2.2 Definitions
1.3 Equipment
1.4 Materials
1.4.1 Pipe, fittings, and repair materials
1.4.2 Filler metal
1.4.3 Shielding gases
1.5 Referenced publications
Section 2 - Qualification of welding procedures
2.1 Procedure qualification
2.2 Records
2.3 Procedure specification
2.4 Essential variables
2.5 Welding of test assembly
2.6 Procedure qualification tests
2.6.1 Preparation
2.6.2 Tensile tests
2.6.3 Nick-break tests
2.6.4 Root- and face-bend tests
2.6.5 Side-bend tests - groove welds
2.6.6 Macro-section tests - fillet welds
Section 3 - Welder qualification
3.1 Purpose
3.2 Welding of test assembly
3.3 Essential variables for welder qualification
3.4 Visual examination
3.5 Performance qualification tests - destructive
testing
3.5.1 Sampling of test welds
3.5.2 Tensile-, nick-break-, and bend-test procedures
3.5.3 Macro-section-test procedures and test acceptance
criteria - fillet welds
3.6 Retest
3.7 Records of qualified welders
Section 4 - Suggested maintenance welding practices
4.1 General
4.2 Alignment
4.2.1 Offset
4.2.2 Root opening (complete encirclement fittings)
4.3 Bevels
4.4 Weather conditions
4.5 Clearance
4.6 Cleaning
4.7 Welding sequence
Section 5 - Inspection and testing of maintenance welds
5.1 Right of inspection
5.2 Visual inspection
5.3 Nondestructive testing
5.4 Certification of nondestructive testing personnel
5.4.1 Procedures for certifying nondestructive testing
personnel
5.4.2 Record of certified nondestructive testing
personnel
5.5 Right of rejection
5.6 Qualification of welding inspectors
Section 6 - Standards of acceptability: nondestructive
testing (including visual)
6.1 Introduction
6.2 Limitations of test methods
6.3 Incomplete fusion
6.4 Porosity
6.5 Cracks
6.6 Undercutting
Section 7 - Repair or removal of defects
7.1 Authorization for repair by welding
7.2 Removal and preparation for repair of defects
7.3 Testing of repairs
7.4 Procedure for repair of cracks
Figures
1 Procedure qualification test assembly
2 Location of test specimens - maintenance welding
procedure qualification test
3 Tensile-test specimen - groove welds
4 Nick-break-test specimens - groove welds
5 Nick-break-test specimens - fillet welds
6 Dimensioning of discontinuities in weld specimens
7 Root-bend- and face-bend-test specimens - groove
welds
8 Jig for guided bend test
9 Side-bend-test specimen - groove welds
10 Macro-test specimen - fillet welds
11 Welder qualification test assembly
12 Location of test specimens - maintenance welder
qualification test
13 Reinforcing pad
14 Reinforcing saddle
15 Encirclement sleeve
16 Encirclement tee
17 Encirclement saddle
19 Maximum distribution of gas pockets: wall
thicknesses less than or equal to 1/2 inch (12.7
millimeters)
20 Maximum distribution of gas pockets: wall
thicknesses greater than 1/2 inch (12.7
millimeters)
Tables
1 Filler metal groups
2 Type and number of test specimens - procedure
qualification test
3 Type and number of test specimens - welder
qualification test
4 Undercutting limits
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