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Subcommittee on Corrosion & Materials

My Committees
My Rosters

 API Contact

Nate Wall
Senior Associate, Standards
American Petroleum Institute
1220 L Street, NW
Washington, DC 20005-4070
Phone: 202-682-8157

 Subcommittee Scope

Welcome to the home page of the API Subcommittee on Corrosion & Materials (SCCM).  The SCCM conducts research and develops and revises industry standards that address issues related to refining process equipment.   Issues of particular interest to the SCCM include: fabrication requirements, corrosion mechanisms, equipment reliability, refractory systems, and reducing capital and maintenance costs, while increasing safety, equipment lifespan and reliability.  Each meeting of the Subcommittee and its task groups provides a forum for an information exchange on problems and opportunities where industry experts share experiences from operations around the world.

This site houses the SCCM working documents, meeting agendas and presentations, and other relevant material.

Please Note: Minutes and other member working documents are located on a SCCM secure page entitled "SCCM Committee Docs" and require the user to log in from this home page. For those members who do not have access, please contact the API staff person listed below.

The SCCM work program of documents includes:

  • RP 571 - Damage Mechanisms Affecting Fixed Equipment in the Refining Industry
  • RP 582 - Welding Guidelines for the Chemical, Oil, and Gas Industries
  • TR 932-A - The Study of Corrosion in Hydroprocess Reactor Effluent Air Cooler Systems
  • Publ. 932-B - Design, Materials, Fabrication, Operation, and Inspection Guidelines for Corrosion Control in Hydroprocessing Reactor Effluent Air Cooler (REAC) Systems
  • RP 934-A - Materials & Fabrication of 2-1/4Cr-1Mo, 2-1/4Cr-1Mo-1/4V, 3Cr-1Mo, and 3Cr-1Mo-1/4V Steel Heavy Wall Pressure Vessels for High-Temperature, High-Pressure Hydrogen Service
  • TR 934-B - Fabrication Considerations for Vanadium-Modified Cr-Mo Steel Heavy Wall Pressure Vessels
  • RP 934-C - Materials & Fabrication of 1-1/4Cr-1/2Mo Steel Heavy Wall Pressure Vessels for High-Pressure Hydrogen Service Operating at or Below 825 deg. F (441 deg. C)
  • TR 934-D - Technical Report on the Materials and Fabrication Issues of 1-1/4Cr-1/2Mo Steel Pressure Vessels
  • RP 934-E - Materials & Fabrication of 1-1/4Cr-1/2Mo Steel Pressure Vessels for Service Above 825 deg. F (441 deg. C)
  • RP 934-F -  Minimum Pressurization Temperatures, MPT, for Heavy Wall Pressure Vessels (New document)
  • RP 934-G - Coke Drums (New document)
  • RP 934-H - Cr-Mo Reactor Maintenance (New document)
  • RP 934-I - Cr-Mo Inspection (New document)
  • Publ. 935 - Thermal Conductivity Measurement Study of Refractory Castables
  • Std. 936 - Refractory Installation Quality Control Specification - Inspection and Testing Monolithic Refractory Linings and Materials
  • Publ. 938-A - An Experimental Study of Causes and Repair of Cracking of 1-1/4Cr-1/2Mo Steel Equipment
  • Publ. 938-B - Use of 9Cr-1Mo-V (Grade 91) Steel in the Oil Refining Industry
  • TR 938-C - Use of Duplex Stainless Steels in the Oil Refining Industry
  • TR 939-A - Research Report on Characterization and Monitoring of Cracking in Wet H2S Service
  • Publ. 939-B - Repair and Remediation Strategies for Equipment Operating in Wet H2S Service
  • RP 939-C - Guidelines for Avoiding Sulfidation (Sulfidic) Corrosion Failures in Oil Refineries
  • TR 939-D - Stress Corrosion Cracking of Carbon Steel in Fuel Grade  Ethanol - Review, Experience Survey, Field Monitoring, and Laboratory Testing
  • Bull. 939-E - Identification, Repair and Mitigation of Cracking of Steel Equipment in Fuel Ethanol Service
  • RP 941 - Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants
  • TR 941 - The Technical Basis Document for API RP 941
  • TR 942-A - Materials, Fabrication, and Repair Considerations for Hydrogen Reformer
    Furnace Outlet Pigtails and Manifolds (New document)
  • Basis Document for API RP 941
  • TR 942-BMaterial, Fabrication and Repair Considerations for Austenitic Alloys Subject to Embrittlement and Cracking in High Temperature Refinery Service (New document)
  • RP 945 - Avoiding Cracking in Amine Units
  • Publ. 950 - Survey of Construction Materials and Corrosion in Sour Water Strippers-1978
  • Publ. 959 - Characterization Study of Temper Embrittlement of Chromium-Molybdenum Steels
  • RP 970 - Work Process for Development of Corrosion Control Diagrams (New document)

Chair:  Don Chronister, Valero Energy Corporation
Vice-Chair: Peter Risse, Chevron Energy Technology Company

Active members, thank you for attending the September 2013 NACE Corrosion Technology Week and/or the API 2013 Fall Refining and Equipment Standards Meeting. 

The next API Refining Meeting is the 2014 Spring Refining and Equipment Standards Meeting scheduled for May 19 - 22, 2014 at the Buena Vista Palace in Lake Buena Vista (Orlando), Florida.          

Click on “Calendar of Events" under Links for meeting logistics and other information.


 SCCM Meeting Information

There are no items to show in this view of the "Meeting Materials" document library.

 SCCM Committee Documents

Folder: SCCM Document StatusSCCM Document

 SCCM Ballot Results

Folder: 2014 Ballots2014
Folder: 2013 Ballots2013
Folder: 2011 Fall Ballot Results2011 Fall Ballot

 Task Force for Vessel Refractoies

Folder: New Orleans Fall 2013 MeetingNew Orleans Fall 2013
JRP Recommended Resolutions to 560 Reballot Comments.xlsxJRP Recommended Resolutions to 560 Reballot
560 Corrected Draft using JRP Recommended Resoltions from Reballot Comments.docx560 Corrected Draft using JRP Recommended Resoltions from Reballot


  Reference Documents
  Calendar of Events
  API Refining Meeting Information


 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 678SCCM - Subcommittee on Corrosion & Materials
3177OpenIn Progress02/24/201404/21/2014Ballot to Approve API TR 934-G, Coke Drums, First Edition
3232OpenIn Progress04/15/201405/15/2014Ballot to Approve API TR 938-C, 3rd Ed., Use of Duplex Stainless Steels
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