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;
  • open die forgings, Spec 20B;
  • closed die forgings, Spec 20C;
  • non-destructive examination, Std 20D;
  • alloy and carbon steel bolting, Spec 20E;
  • corrosion-resistant bolting, Spec 20F;
  • welding services, Std 20G;
  • heat treating services, Std 20H;
  • distributors, Std 20J;
  • non-metallic seals, Std 20L;
  • machining services, Std 20M;
  • continuous furnace heat treating services, Std 20N;
  • plating and coating, Std 20P;
  • subsurface electronics, Std 20R;
  • additive manufacturing - metallic, Std 20S;
  • additive manufacturing - polymeric, Std 20T.

To check on the status of a document that is currently in the process of being drafted or revised, please visit the API Standards Plan.   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. Please contact Katie Burkle ( for any additional questions.

API SC20 Cross Reference Matrix-20220711.xlsxAPI SC20 Cross Reference Matrix-20220711
API 20H.pdfAPI 20H
API 20J.pdfAPI 20J
API 20M.pdfAPI 20M
SC20 Overview.pdfSC20 Overview
API 20D.pdfAPI 20D
 Reference Documents
 Forms (SR3 & Attendance Sheets)
 SC20 Meeting Minutes (Login Required)

 Open Ballots

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 15192108SC20/V20E: Spec 20E/20F Task Group, Bolting
6017OpenIn Progress02/24/202303/24/2023API Spec 20E, 3rd Edition - Re-ballot
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