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  • Alloy
13-8

Stainless Steel 13-8 Product Guide

 

Applications | Specifications | Mechanical and Chemical Data | Tolerances

 

Overview

 

13-8 stainless steel is a martensitic stainless steel with excellent strength, high hardness, superior toughness, and good corrosion resistance. Additionally, 13-8 exhibits good ductility and fabrication characteristics. As such, it is typically used in aircraft frames, other aerospace applications, petrochemical and nuclear plants.

 

Common Trade Names

UNS S13800, 13-8Mo, 13-8PH, 13-8 PH, 13/8 Mo, 13/8Mo, 13/8PH, 13/8 PH, PH 13-8 Mo, Precipitation Hardening

 

Other Resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

 

Products

Purchase Round Bar 13-8

 

Applications

  • Aerospace
  • Petrochemical
  • Nuclear Plants

 

Stainless 13-8 Specifications

ASTM

AMS

ASME

A564 5629 SA-564



Physical Properties 13-8
 
Annealed
-H950
Density 0.284 lb/in3 0.284 lb/in3
Ultimate Tensile Strength 175 ksi max 220 ksi
Yield Tensile Strength N/A 205 ksi
Fatigue Strength N/A 130 ksi
Shear Strength N/A 150 ksi
Shear Modulus N/A 11,000 ksi
Hardness Rockwell | Brinell C38 | 363 max C45 | 421 min
Elongation at Break Percentage N/A 10%
Reduction of Area N/A 45%
Modulus of Elasticity N/A 28,600 ksi
Poisson's Ratio 0.28 0.28
Machinability Percentage N/A 35-40%
Melting Point 2,560-2,680 °F 2,560-2,680 °F
Specific Heat 1.1 x 10^-1 BTU/lb-°F 1.1 x 10^-1 BTU/lb-°F
Thermal Conductivity 112 BTU-in/hr-ft^2-°F 112 BTU-in/hr-ft^2-°F
Electrical Conductivity 2.3% IACS 2.3% IACS


Chemistry Information
Element
Percentage
Al 0.9 - 1.35
C 0.05 max
Cr 12.25 - 13.25
Fe 76
Mn 0.1 max
Ni 7.5 - 8.5
Mo 2 - 2.5
N 0.01 max
P Max - 0.01
Si 0.1 max
S 0.008 max
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