Duties Of A Weld Inspector: Weld Inspection Level 2 Course

WELD INSPECTION LEVEL 2 COURSE

CHAPTER 1

DUTIES OF A WELD INSPECTOR

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CHAPTER 1

WELDING INSPECTION

RELATED TOPICS: • Specific duties of a welding inspector • Duties prior to welding • Duties during welding • Duties after welding • Welding Inspector’s Equipment

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CHAPTER 1

WELDING INSPECTION

1.1 Specific Duties of a Welding Inspector - The main duty of a welding inspector is to ensure that all the welding and associated actions are carried out in accordance with the welding specification(s) relevant to the contract or work being carried out.

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CHAPTER 1

WELDING INSPECTION

1.2 Duties Prior to Welding No.

Duties

API 1104 REF:

1.

Obtain all the relevant information or ensure access to it a) Relevant specification(s) b) Relevant procedures, wps, repair, ndt, etc. c) Copies of welder’s test certificate (where applicable) d) Copies of drawing (where applicable)

Sect 5.3 & 6.2

2.

Ensure welder qualification

3.

Correct material – type, condition, size (pipe, plate, etc)

Sect 4.2.1

4.

Correct consumables – type, condition, size, (filler material, gas, inserts, etc.)

Sect 4.2.2

5.

Correct equipment – certified where necessary

Sect 4.4.1

Sect 6.2

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CHAPTER 1

WELDING INSPECTION

1.3 Duties Prior Welding No .

Duties

API 1104 REF:

6.

Correct the Preheat (where applicable)

<Sect 7.11

7.

Assess/measure fit-ups a) Root Face b) Bevel Angle c) Root Gap d) Alignment e) Seem Offset f ) Joint Cleanliness

Sect Sect Sect Sect Sect Sect

8.

Ensure no undue stress is applied to the joint

Sect 7.5

9.

Monitor weather condition

7 7.6 7.4 7.6 7.2 5.3.2.12

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CHAPTER 1

WELDING INSPECTION

1.3Duties During Welding No.

Duties

API 1104 REF:

1.

Check Amperage(A),Voltage(V),and Polarity.

Sect 5.4

2.

Ensure welding technique.

Sect 5.3

3.

Check welding time – time lapses and/or run out length (r.o.l’s).

4.

Ensure adequate cleaning between passes.

Sect 7.7

5.

Correct interpass temperature – minimum and/or maximum.

Sect 7.11

6.

Check root internally (pipes) where access permits.

Sect 9

7.

Check back gouged welds – amount gouged, shape of gouge, cleanliness of gouge.

Sect 7.7

8.

Monitor safety: Personel Protection Equipment (PPE), Fire/Heat, fumes, and electric shock.

Sect 4.1

Sect 5.4.2.8

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CHAPTER 1

WELDING INSPECTION

1.4Duties After Welding No.

Duties After Welding

API 1104 REF:

1.

Ensure allowable cap repairs are carried out whilst weld is still hot.

Sect 10.2

2.

Ensure joint is covered with heat-resistant

Sect 7.11

3.

Ensure weld is post cleaned

Sect 7.7

4.

Visual inspection of weld for defects, eg; cracks, incomplete filled groove, lack of penetration, lack of fusion, arc strikes, etc.

Sect 9.3

5.

Check weld contour and weld width.

Sect 9.3

6.

Inspect/monitor post heat treatment.

Sect 7.11

7.

Report on weld.

Document A6

8.

Check NDT Reports – tie up with NDT.

Document A6

9.

Supervise and monitor any repairs in accordance with repair wps.

10.

Documentation

Sect 9 Document A6 7

CHAPTER 1 1.5

WELDING INSPECTION

Welding Inspector’s Equipment

- The welding inspector’s equipment partly depends on which work is to be performed. Client specification also determines what equipment is to be used; e.g. a portable arc monitoring unit (PAM unit) may be used to measure and record amperage and voltage instead of a hand held voltmeter and ammeter. a) b) c) d) e) f) g)

Steel Rule. Flexible tape measure. Temperature Indicating crayons or thermocouple (pyrometer). Bevel angle gauges. Root gap gauges. Fillet weld gauges. Misalignment gauge. 8

CHAPTER 2 1 h) i) j) k) l) m) n) o) p) q)

WELDING INSPECTION WELD TERMINOLOGY

Voltmeter. Ammeter. Polarity indicator. Height/depth gauge. Contour gauge. Torch or other light source. Modeling clay or resin. Magnifying glass – 5x magnification. Marking crayon or paint stick. Mirror.