SAMSS Home · SAMSS Descripción: 35 Author: Cherukunnon Jubu. 29 downloads Views KB Size. Report. Materials System Specification SAMSS API Line Pipe Materials and Corrosion Control Standards Committee Members Anezi. SAMSS Carbon Steel Pipes On-Plot – abr – Materials System in accordance with Saudi Aramco specification SAMSS
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For thicknesses in excess of 1. Reference to Class I service has been discontinued because PSL 2 pipe ordered to this specification meets the requirements for Class I service by default.
This task shall be carried out wamss Saudi Aramco Inspection Representative, e. D Recycling of crushed slag or contaminated flux is not permitted. Verification shall be conducted at the pipe mill.
A bill of materials indicating the specific ASTM or equivalent material specification for each part. After grinding, wall thickness dimension shall be nominal plus or minus API allowable tolerances. The residual stress test shall be done after the hydrostatic test. Hardness Test [modification] Only Vickers hardness testers shall be used. Only Vickers hardness testers shall be used.
Unless stated to the contrary in the Purchase Order, pipe manufactured to this specification must be suitable for internal and external coating with fusion bonded epoxy and other applicable coating materials. The specimen shall be polished.
Samsa hydrostatic test shall be conducted after all manufacturing processes including repairs and heat treatments are completed. If this examination is done before the hydrostatic test, the Buyer’s Inspector may, at his sole discretion, require re-examinations by manual ultrasonic method of any questionable areas after the hydrostatic test.
For pipes intended for subsea applications, the pipe length shall be Retesting for DWT shall be same as that required for Charpy retests see paragraph sams Marking General [addition] The area of the pipe to be marked shall be clean and dry. Workmanship and Defects Other Defects [addition] For pipe that is intended to be subsequently coated See Section Ithe surfaces to be coated shall be essentially free of scabs, slivers, cold laps, burrs or other surface defects that would impair the coating.
Spiral-seam SAW pipe shall be limited to nominal diameter samxs of 16 inches or larger. Use of two or more wires is accepted as equal to two welding passes. Page 18 of 28 Document Responsibility: Samas template must conform to a circle of the pipe’s nominal diameter and the length of the template must be one-fourth of the nominal diameter, except that it need not be over 8 inches. For each section containing cracks, a photograph shall be taken of the complete cross-section.
Unless otherwise specified, when hardfacing is required it shall be Stellite No. The assumed residual stress shall be computed using the following formula: The pipes for testing can be selected by the purchaser’s representative from the heats containing the higher 05 content. As a minimum, the drawings shall depict the following as applicable: This laboratory shall use HIC test methods sanss control samples in accordance with this specification.
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Page 22 of 28 Document Responsibility: Double seam sa,ss is not acceptable for size smaller than 60 xamss nominal diameter. If the vendor begins manufacturing valves prior to the drawing approval, he does so at his own risk. Page 16 of 28 Document Responsibility: One set 3 specimens of impact testing shall be carried out for each lot.
All sealant injection fittings shall be one-piece giant buttonhead type with internal check valve mechanisms, and shall be equipped with safety vent caps.
The acceptance limits shall be in accordance with Table D. The cut shall be degrees from the spiral weld. The carbon equivalent shall not exceed the maximum limits tabulated below, unless approved by the Chairman of samzs Saudi Aramco Materials and Corrosion Control Standards Committee.
For spiral-seam pipe, an 8 inches straight template parallel to the pipe axis may be used. Unless stated to the contrary in the Purchase Order, pipe manufactured to this specification must be suitable for external coating with fusion bonded epoxy per SAMSS The marking shall ensure full traceability to melt and heat treatment smass.
For other properties, the more restrictive specification applies in each case.
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Blisters and their associated cracking which at no point extend more than 1 mm from the inner and outer pipe surfaces of the test specimen. The corrosion resistance of body-bonnet sams and gasket materials shall be at least equal to that of the body. Direct all requests to deviate from this specification in writing to the Company or Purchaser Representative, who shall follow internal company procedure SAEP and forward such requests to the Manager, Consulting Services Department of Saudi Aramco, Dhahran.
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The markings shall be paint stenciled using a medium and protective varnish that will provide a legible marking for at least one year of outside storage. If cracks are seen in the weld after HIC testing, the root cause of cracking must be analyzed by the pipe mill. Double seam pipe is not acceptable for size smaller than 60 inches nominal diameter. However, two additional joints of pipe or pieces of plate may be selected at random from the same lot for further testing.
All valve threaded body connections including drain, vent and sealant injection piping shall be seal welded, except those that are frequently removed such as vent and drain plugs or those that contain moving parts such as injection fittings, relief valves, etc.
Pipe lengths less than