CHECK LIST FOR STRUCTURAL FABRICATION ( COURTESY: QUALITY TIMES)

A. Manuacturing Specifications And Standards 


Does the Fabricator/ Manufacturer have a copy of CLIENT specifications and are the Fabricator's personnel familiar with these specifications?

Does the Fabricator/Manufacturer have a latest copy of AWS D1.1?

Does the Fabricator/Manufacturer have copies of all the current relevant material specifications (e.g. ASTM)?

Does the Fabricator/Manufacturer have personnel that are knowledgeable and experienced with the material codes and specifications?

Is there a written procedure in place to disseminate specification requirements and changes to appropriate personnel?


B. Reading / interpreting shop drawings


Does the Fabricator/Manufacturer have personnel capable of supervising, evaluating and coordinating shop drawing preparation and review?
Do the shop drawings for current work denote materials to be utilized in the final structure?

Do the shop drawings for the current work denote NDT requirements for the various welded connections?

Do the materials and processes specified or indicated on the shop drawings for current work agree with the associated contract documents material requirements for work ongoing in the shop?


C. Drawing Control

Does the Fabricator or Manufacturer have a written procedure for tracking design drawings.

  
Does the tracking procedure utilized trace each phase from drawing preparation, showing receipt, submittal for approval, approval, re-submittals and date sent to shop for fabrication? 

Do the shop plans for current work correspond to the latest revision?


D. Work Order – Job control


Does the Fabricator/Manufacturer have an established job control number and identification system for all work in production or completed?
Does the Fabricator/Manufacturer have an established identification system in place that clearly denotes material or fabricated components accepted by in-house QC?
Does the Fabricator/Manufacturer have an established identification system in place that clearly denotes fabricated components requiring repairs or corrections?
Is all received correspondence marked with a distinguishable identifying mark?

Are correspondence files maintained and segregated for each project?

Is received correspondence stamped, dated and initialed by personnel responsible for the evaluation and implementation of the technical content?


E. Material Procurement & Subcontracts

Are purchase orders or any other types of material procurement forms on file for verification and documentation of the orders?
Are all materials ordered or procured to the required standards and specifications specified in the corresponding contract documents?

Do the Fabricator’s or Manufacturer’s procurement documents require that his suppliers must furnish material testing reports (MTR’s)?
Do the procurement documents state how the material should be marked and identified?

  
Are procedures in place to assure that subcontracted fabrication is ordered to contract requirements?


  
F. Material Receiving

Is there an established written procedure for the reception of materials and subassemblies?

Are reception inspections done to all incoming materials and subassemblies arriving at this facility?

Are purchase orders or any other types of material procurement documents available to the Receiving
Inspector to facilitate confirmation of compliance?

Do the materials and subassemblies receiving inspection confirm and document the following:

a. ____ Proper grade of material?

b. ____ Proper material markings and identification?

c. ____ Proper material dimensions?

d. ____ Compliance with dimensional tolerances?

e. ____Heat numbers on material match heat numbers on corresponding mill certificates?

  
Are receiving inspections documented for:
a. ____ Acceptance and rejection of nonconforming materials and subassemblies?

b. ____ Corrective actions taken to deal with non-correctable and correctable non-conformity’s observed during the reception inspection?

Are acceptance standards and acceptance tolerances available for reference at the receiving inspection station?
  

Does the Fabricator or Manufacturer have a material identification system to assure control of materials of different grade and size (as applicable)?
Does the Fabricator or Manufacturer segregate controlled materials by project?

Does the Fabricator/Manufacturer have mill test reports (MTR’s) for all material currently in fabrication?

Are MTR’s traceable to stored or stocked material?
Are materials stored or stocked so as to prevent damage to the raw materials or final fabricated pieces? 

Are the stored or stocked materials clearly marked or identified?

G. Equipment/facilities, handling and storage procedures

Does the Fabricator or Manufacturer have adequate equipment to fabricate the proposed items? (Attach list of the available equipment.)

Does the Fabricator or Manufacturer have adequate equipment to fabricate to the units required (English/Metric)?
Is the material handling equipment adequate for the type of work being performed?

 Does the Fabricator or Manufacturer have adequate written procedures that describe or illustrate the proper way to:

a. ____ Handle material in the yard?

b. ____ Handle materials in the plant?

c. ____ Move in process materials and subassemblies?

d. ____ Provide correct bracing and blocking for materials and subassemblies?

e. ____ Prevent material and subassembly deterioration?

f. ____ Provide correct storage for fabricated products?

g. ____ Handle and ship the fabricated products?

H. Welding & Welding Consumables

Does the Fabricator/Manufacturer have welding procedure specifications and procedure qualification records (if applicable) per the submitted WQCP? 
Are the Fabricator's/Manufacturer’s list of welders/operators listed in the submitted WQCP up to date?
 
Are approved welding procedures readily available or posted near all welding machines? 

Do welders know and understand which WPS is to be used to produce each specific weld? 

Are welded structures and specific welds traceable to the welder(s) and or welding crew that completed the job?
 
Does the Fabricator/Manufacturer have and properly maintain appropriate equipment for preheat and interpass heating?

Do Quality Control Personnel monitor maximum interpass and minimum WPS preheat temperatures utilizing proper equipment?

Are flame cut edges inspected by quality control inspectors to verify compliance with AWS D1.1 code requirements?

Do quality control inspectors verify and document joint fit-up of each joint before welding is permitted? 

  
Do the quality control inspectors verify and document the utilization of WPS’s?

  
Are meters and other devices used to record or display welding variables checked for accuracy every three months? 
Is the equipment used for verifying meters and other devices certified annually?
 
Are welding consumables stored in accordance with AWS D1.1?
  
Are welding consumables at the workstation protected from contamination and damage? 

  
Does the Fabricator or Manufacturer control the exposure time of low-hydrogen SMAW electrodes following removal from hermetically sealed containers, drying ovens, or storage ovens?
 
Are consumable manufacturer certification reports on file and available? 

I. Coating Process:

Are the facilities and equipment suitable for performing cleaning, painting or galvanizing?

   
Does a written procedure exist that addresses: Measuring and recording temperature, Measuring and recording humidity, Measuring and recording wet film thickness, Measuring and recording dry film measurements.

Are the facilities and equipment suitable for performing galvanizing in conformance with appropriate ASTM specifications?

Are thickness measurements of galvanized surfaces performed and documented?
  
Does a written repair procedure exist for repair of galvanizing holidays? 

J. Quality control & Quality control inspectors:


Does the Fabricator or Manufacturer have a written Quality Control Manual that describes the company policy, support and commitment to quality?

Does the Fabricator or Manufacturer have a written job description and an organizational chart that reflects its commitment to quality?
Does the Quality control Manual include sections that deal with:

a. Contract review?

b. Documents and drawings control?

c. Materials purchasing?

d. Product identification and traceability?

e. Process control?

f. Inspection and testing?

g. Control of inspection, measuring and test equipment?

h. Control of nonconforming products?

i. Corrective and preventive actions?

j. Handling and storage?

k. Packaging and delivery?

l. Internal audits?

m. Manual review and update? 

Does the Fabricator have a registered Certified Welding Inspector (CWI) on his full time staff or on contract?

Were Quality Control personnel available in the plant during this inspection audit?

Does the Fabricator have certified NDT personnel on their full time staff?

Does the Fabricator verify the subcontractor’s qualifications?

Does the Fabricator or Manufacturer have current certifications and eye examinations for all inspection personnel and the Certifying Level III (staff and subcontractor) on file and readily available?
Does the Fabricator or Manufacturer have a copy of the approved written practice for certification of NDT personnel (staff and subcontractor) on file and readily available?
Does the written practice meet or exceed the recommendations of ASNT SNT-TC-1A, latest edition?

Does the Fabricator or Manufacture maintain documentation readily available on file of the calibrations performed on NDT equipment utilized in the facility by QC Personnel or subcontractors?

 Does the Fabricator or Manufacturer maintain documentation for all quality control testing?

  
Do quality control inspectors have sufficient equipment to adequately perform their tasks e.g. Tape line, Calipers, Tag systems, Fillet weld gages, Chipping hammer, Magnifying glass, Amp tongs, paint gages, Flashlight, Preheat & interpass temperature measuring and testing devices, Mirrors?.

Does the Fabricator or Manufacturer have written procedures for:

a. ____ Minor repairs?

b. ____ Major repairs?

c ____ Documentation Re-inspection of repairs?



Do Quality Control Personnel mark or otherwise indicate clearly on the components when the following checks are completed and the disposition of their findings:

a. ____ Joint fit-up verified?

b. ____ Welding parameters verified?

c. ____ Final visual inspection completed?

d. ____ NDT completed (if required)?

e. ____ Confirmation of defect removal prior to repair welding (if required)?

f. ____ Dimensions of fabricated component verified?

g. ____ Fabricated structure or component verified for compliance with contract documents?

Are quality control personnel aware and familiar with the quality control requirements?

Does the Fabricator or Manufacturer maintain a quality control program that is independent from production?
Do the quality control inspectors have the responsibility of informing line foreman and superintendent when observing any non-conforming work processes and performances?
  
Is the CWI/QC given sufficient authority to stop work in order to prevent unacceptable work from proceeding?

K. Completed member storage and Final inspection

Does the Fabricator or Manufacturer understand that there is a 48-hr. notification for final inspection?
Is the Fabricator or Manufacturer aware that they must provide complete paper work, including a certificate of compliance and weights, for final inspection and release from the shop? 

Does the Fabricator or Manufacturer have a designated location where material receives final inspection?

 Are completed members properly stored to prevent damage?

Are all components traceable to MTR’s? 

Does the Fabricator or Manufacturer understand that material release tags should be completed and attached only by the Engineer or his authorized representative?



CLICK ON THE IMAGES TO VIEW CLEARLY