Committee Scope

Subcommittee 5, Tubular Goods (SC5)                        

API Staff Contact: Ben Coco (cocob@api.org)

Description

SC5 develops, approves, and maintains standards pertaining and related to the product design and manufacture of:

  • casing/tubing and accessories for well operations
  • line pipe for transmission and facility piping
  • drill pipe and drill stem elements for drilling operations
  • pipe threading and gauging and thread compounds

The standards under SC5 are also supported with additional resources having expertise in metallurgy, performance properties, sour service, and coiled pipe

SC5 Advisory/Resource/Task Groups

  • Advisory Groups
    • Manufacturer (MAG)
    • User (UAG)
  • Resource Groups
    • Non-destructive Testing (RGNDT)
    • Performance Properties (RGPP)
    • Sour Service Products (RGSSP)
    • Coiled Tubulars (RGCT)
    • Monogram Program (RGMP)
  • Task Groups
    • Oil Country Tubular Goods (TGOCTG)​
    • Line Pipe (TGLP)
    • Drill Stem Elements (TGDSE)
    • Threading, Gauging, and Compounds (TGTGC)
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 BallotsWP

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Ballot Information
  
ID5406
NameSPEC 5L, WI 4251, Sub-size Charpy Requirements
Start Date02/19/2021
Closing Date03/19/2021
AssociateBenjamin Coco
CoordinatorBenjamin Coco
ProposalRevise the wording of 10.2.3.3 to address a concern that the WT limits in Table 22 do not reflect the WT tolerances and machining capabilities. Currently, for pipe sizes near the bottom WT limits it is not possible to consistently meet the CVN machining limits of ASTM A370 and the specimen tolerances. As such, this material cannot be certified to 5L. The problem: Table 22 addresses the specified (ordered, nominal) wall thickness but it can be difficult or impossible to machine samples from pipe with wall thickness near the allowable minimum (-12.5%), especially using automated equipment. Example: 16” x 0.435” requires a full-size specimen to be machined according to Table 22. The minimum allowable wall thickness is 0.381”. The required dimensions of a full-size sample according to ASTM A370 are 2.165” x 0.394” x 0.394”. In this case, the allowable wall thickness does not permit a full-size sample to be obtained – not even considering min 0.039” min grind tolerance.
StatusClosed
ResultsIn Progress

Ballot Summary
StatisticsOutcomeNote
Affirmative27 
Negative1 
Abstain0 
Did Not Vote3 
Total Responses28 
Total Ballots31 
Response Rate90.32%Must be > 50%
Approval Rate96.43%Must be >= 66.67%
ConsensusYES 
 
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