• API TR 938-B : 2008

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    USE OF 9CR-1MO-V (GRADE 91) STEEL IN THE OIL REFINING INDUSTRY

    Available format(s): 

    Withdrawn date:  03-02-2024

    Language(s): 

    Published date:  01-06-2008

    Publisher:  American Petroleum Institute

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Terms, Definitions, Acronyms, and Symbols
      2.1 Terms and Definitions
      2.2 Acronyms
      2.3 Symbols
    3 Base Metal Chemical, Physical, Mechanical and
      Metallurgical Properties
      3.1 General
      3.2 Chemical Composition
      3.3 Physical Properties
      3.4 Metallurgical Properties
      3.5 Mechanical Properties
    4 Metallurgy and Environmental Related Failure Mechanisms
      4.1 Oxidation and Sulfidation Resistance
      4.2 Wet Hydrogen Sulfide Cracking
      4.3 Hydrogen Attack Resistance
      4.4 Hydrogen Embrittlement, Hydrogen Diffusivity and
          Trapping
      4.5 Temper Embrittlement
      4.6 Type IV Cracking
    5 Material Requirements
      5.1 Base Metal
      5.2 Welding Consumables
    6 Fabrication and Welding Requirements
      6.1 General Concerns
      6.2 Cold Bending
      6.3 Hot Bending
      6.4 Welding
    7 Examples of 9Cr-1Mo-V Applications and Refinery
      Experiences
      7.1 Experiences
      7.2 Applications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the basic material and metallurgical properties of 9Cr-1Mo-V steel, including a summary of the physical and mechanical properties, corrosion and oxidation resistance, indicating possible corrosion and/or mechanical failure mechanisms and how to avoid them.

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    Document Type Standard
    Product Note This product is unavailable in Cuba, Iran, North Korea, Syria
    Publisher American Petroleum Institute
    Status Withdrawn

    Standards Referencing This Book - (Show below) - (Hide below)

    ASME PV CODE 8 DIV 2 : 2017 BOILER AND PRESSURE VESSEL CODE - RULES FOR CONSTRUCTION OF PRESSURE VESSELS DIVISION 2- ALTERNATIVE RULES
    ASNT SNT TC 1A : 2016 TOPICAL OUTLINES FOR QUALIFICATION OF NONDESTRUCTIVE TESTING PERSONNEL
    ASME PV CODE 9 : 2017 BOILER AND PRESSURE VESSEL CODE - WELDING, BRAZING, AND FUSING QUALIFICATIONS - QUALIFICATION STANDARD FOR WELDING, BRAZING, AND FUSING PROCEDURES; WELDERS; BRAZERS; AND WELDING, BRAZING, AND FUSING OPERATORS
    ASME PV CODE 8 DIV 1 : 2017 BOILER AND PRESSURE VESSEL CODE - RULES FOR CONSTRUCTION OF PRESSURE VESSELS DIVISION 1
    AWS A5.5 : 1996 SPECIFICATION FOR LOW ALLOY STEEL ELECTRODES FOR SHIELDED METAL ARC WELDING
    ASTM E 10 : 2017-05 TEST METHOD FOR BRINELL HARDNESS OF METALLIC MATERIALS
    AWS A5.29 : 1998 SPECIFICATION FOR LOW ALLOY STEEL ELECTRODES FOR FLUX CORED ARC WELDING
    NACE RP 04 72 : 2005 METHODS AND CONTROLS TO PREVENT IN-SERVICE ENVIRONMENTAL CRACKING OF CARBON STEEL WELDMENTS IN CORROSIVE PETROLEUM REFINING ENVIRONMENTS
    ASME PV CODE 2D METRIC : 2017 BOILER AND PRESSURE VESSEL CODE - MATERIALS - PROPERTIES (METRIC)
    API 941 : 2016 STEELS FOR HYDROGEN SERVICE AT ELEVATED TEMPERATURES AND PRESSURES IN PETROLEUM REFINERIES AND PETROCHEMICAL PLANTS
    ASME PV CODE 5 : 2017 BOILER AND PRESSURE VESSEL CODE - NONDESTRUCTIVE EXAMINATION
    ASME PV CODE 2A : 2017 BOILER AND PRESSURE VESSEL CODE - MATERIALS - FERROUS MATERIAL SPECIFICATIONS (BEGINNING TO SA-450) AND (SA-451 TO END)
    ASME PV CODE 2D CUSTOMARY : 2017 BOILER AND PRESSURE VESSEL CODE - MATERIALS - PROPERTIES (CUSTOMARY)
    AWS A5.23 : 1990 SPECIFICATION FOR LOW ALLOY STEEL ELECTRODES AND FLUXES FOR SUBMERGED ARC WELDING
    ASME PV CODE 2C : 2017 BOILER AND PRESSURE VESSEL CODE - MATERIALS - SPECIFICATIONS FOR WELDING RODS, ELECTRODES, AND FILLER METALS
    AWS B4.0:2016 STANDARD METHODS FOR MECHANICAL TESTING OF WELDS
    AWS A5.28 : 1996 SPECIFICATION FOR LOW ALLOY STEEL FILLER METALS FOR GAS SHIELDED ARC WELDING
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