Table of Contents

  1. Introduction
  2. Definition of Package Units
  3. Procedure
  4. References

1. Introduction

To improve the coordination of the supply of structural steel contained in package units, the following procedure must be followed.

2. Definition of Package Units

Under package units in this procedure we understand vendor designed equipment or an assembling of vendor designed equipment containing structural steel.

Examples are:

  • Airfine
  • Boilers, heaters, etc.
  • Flare stacks
  • Ducts (with supporting structures)
  • Storage tanks (stairs, railings, etc.)
  • Desalters
  • Deaerators
  • Steel structures for subcontracted buildings

3. Procedure

3.1 Prior to order placement the Structural Steel Engineer must be involved in discussions with vendors quoting for package units, containing a structural element.

Although it is a project engineering duty to involve the Structural Steel Engineer in such discussions, the equipment specialist engineer (Vessel Engineer for airfins, tanks; Mechanical Engineer for heaters, boilers, etc.) shall, already during the preparation of the bid document, involve the Structural Steel Engineer.

3.2 It is considered necessary that at the time Company places purchase orders for package units, also the possible structural steel subvendor(s) are known. It is a procurement responsibility that such a “vendor list” is established.

3.3 In the case of foreign vendors it is advantageous that the Structural Steel Engineer has regular contacts with the vendor during the design phase of the job.

If the structural steel is supplied by a sub-vendor, contacts with this sub-vendor shall always be through the prime-vendor and will be organized by inspection/expediting.

Also the equipment specialist shall always be informed.

3.4 To cover the requirements specified under 3.2 and 3.3 it is recommended to add following clause to “package units” requisitions:

“In his quotation, vendor shall give a vendors list for the design, fabrication and delivery of structural steel.

The selected vendor for structural steel shall be brought in contact with Company’s Structural Steel Engineer before this vendor starts the actual design of the structural steel”.

3.5 Vendor documents for structural steel, such as static computations, layout drawings, detail drawings etc., shall be routed via Structural Steel Engineer.

The Structural Steel Engineer is responsible that these documents are checked in sufficient detail.

4. References


Doc. Number





Procurement of Package Units




Requisitioning and Purchase Procedure