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    13-8Mo

    13-8Mo

      plate6rv

      plate
      bar1bd

      bar
      pipeosw

      pipe
      Stripdmc

      Strip
      Wirek51

      Wire
      flangecer

      flange
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      fitting
      fastenerwpr

      fastener
      01About Alloy 02Product Form 03Chemical Composition 04Property 05Application

      About Alloy

      13-8 Mo is a martensitic precipitation-hardening stainless steel. This alloy is double melted in a Vacuum Induction Furnace (VIM) followed by Consumable Electrode Vacuum Melt (CEVM or VAR); or in some cases, 2nd melt is by Electroslag Remelting (ESR) as specified by consumer. It exhibits excellent strength, high hardness, superior toughness, and good corrosion resistance. Good transverse toughness properties are achieved by tight chemical composition control, low carbon content, and vacuum melting. 13-8 Mo steel provides a wide range of properties through a single precipitation hardening heat treatment. It is weldable; inert gas shielding with Helium is preferred. Corrosion resistance is similar to 304 Stainless, with greatest resistance in the fully hardened conditions.

      Product Form & Standard

      Plate: AMS 5864, ASTM A564, ASME SA693 
      Wire: ASTM A564, ASME SA564, AMS 5864 
      Sheet: ASTM A693, ASME SA693, AMS 5864 
      Bar: AMS 5629 Type 1, ASTM A564
      Forgings: ASTM A705
      Strip: ASTM A693

      Chemical Composition

      Symbol

      Element

      Min %

      Max %

      C

      Carbon

      0.05%

      Mn

      Manganese

      0.10%

      Si

      Silicon

      0.10%

      P

      Phosphorus

      0.010%

      S

      Sulfur

      0.008%

      Cr

      Chromium

      12.25%

      13.25%

      Ni

      Nickel

      7.50%

      8.50%

      Mo

      Molybdenum

      2.00%

      2.50%

      N

      Nitrogen

      0.010%

      Al

      Aluminum

      0.90%

      1.35%

      Fe

      Iron

      Balance

      Mechanical Properties

      Material

      Condition

      Ultimate Tensile Strength (ksi)

      0.2 % Yield Strength (ksi)

      Elongation % in 2D

      % Reduction of Area

      Rockwell C Hardness

      Alloy 13-8 Sheet AMS 5864

      Cond A

      -

      -

      -

      -

      38 max

      Alloy 13-8 Sheet AMS 5864

      H950

      220

      205

      10

      45

      45

      Alloy 13-8 Sheet AMS 5864

      H1000

      205

      190

      10

      50

      43

      Alloy 13-8 Sheet AMS 5864

      H1025

      185

      175

      11

      50

      41

      Alloy 13-8 Sheet AMS 5864

      H1050

      175

      165

      12

      50

      40

      Alloy 13-8 Sheet AMS 5864

      H1100

      150

      135

      14

      50

      34

      Alloy 13-8 Sheet AMS 5864

      H1150

      135

      90

      14

      50

      30

      Material

      Condition

      Ultimate Tensile Strength (ksi)

      0.2 % Yield Strength (ksi)

      Elongation % in 2D

      % Reduction of Area

      Rockwell C Hardness

      Alloy 13-8 Bar AMS 5629

      Cond A

      -

      -

      -

      -

      363 HB Max

      Alloy 13-8 Bar AMS 5629

      H950

      220

      205

      10

      45

      45

      Alloy 13-8 Bar AMS 5629

      H1000

      205

      190

      10

      50

      43

      Alloy 13-8 Bar AMS 5629

      H1025

      185

      175

      11

      50

      41

      Alloy 13-8 Bar AMS 5629

      H1050

      175

      165

      12

      50

      40

      Alloy 13-8 Bar AMS 5629

      H1100

      150

      135

      14

      50

      34

      Alloy 13-8 Bar AMS 5629

      H1150

      135

      90

      14

      50

      30

      Application

      13-8 Mo stainless steel is typically used in the following applications:
      Used primarily for parts requiring corrosion resistance, stress-corrosion, and high strength 600°F (316°C), with good ductility and strength in transverse direction for
      Aerospace components
      Injection molding equipment
      Waterjet cutting equipment
      Petrochemical industries
      Nuclear industries

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