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SC20-Subcommittee on Supply Chain Management

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 API Contact

Katie Burkle
Phone: 202-682-8507

 Committee Scope

SC 20 develops and maintains standards on supply chain management for critical materials and processes used in oil and natural gas exploration and production.  These standards include:

  • castings, Spec 20A (Published August 2017);
  • open die forgings, Spec 20B (Published April 2013);
  • closed die forgings, Spec 20C (Published November 2015);
  • non-destructive examination, Std 20D (Published September 2013);
  • alloy and carbon steel bolting, Spec 20E (Published February 2017);
  • corrosion-resistant bolting, Spec 20F (Published June 2015);
  • welding services, Std 20G (under development);
  • heat treating services, Std 20H (Published October 2015);
  • distributors, Std 20J (Published May 2017);
  • non-metallic seals, Std 20L (under development);
  • machining services, Std 20M (under development);
  • continuous furnace heat treating services, Std 20N (under development);
  • plating and coating, Std 20P (under development);
  • subsurface electronics, Std 20R (under development).

Please contact Katie Burkle ( for information on those standards that are currently under development.  When published, you can find further details and scopes of the Series 20 standards in the Exploration and Production section of the API Publications catalog.


 Informational Presentations

API 20M.pdfAPI
SC20 Overview.pdfSC20
API 20D.pdfAPI
API 20H.pdfAPI
API 20J.pdfAPI


  Reference Documents
  CSOEM Links

 Open Ballots

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 1519SC20/V20E: Spec 20E/20F Task Group, Bolting
4212ClosedIn Progress07/26/201709/20/2017API 20F, 2nd Edition
4335ClosedResolution Required01/17/201802/21/2018API 20E, 2nd Edition, Addendum 1
4444ClosedIn Progress04/06/201805/18/2018API 20E, 2nd Edition, Addendum 2 - Comment Only
4459ClosedFail04/18/201805/30/2018API 20E, 2nd Edition, Addendum 3
Committee ID : 2012SC20/V20L: Spec 20L Task Group, Non-Metallic Seal Suppliers
4129ClosedResolution Required05/12/201706/22/2017API 20L, 1st Edition
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