Type 310 (UNS S31000)

Description

Type 310 is a high temperature chromium nickel austenitic stainless steel with high creep strength that resists oxidation at temperatures up to 2000˚F in dry air.  Type 310 forms a tenacious scale at high temperature and is resistant to spalling and performs better than Type 309 in thermal cycling applications.  Type 310 has good sulfidation resistance and good resistance to carburization in moderately carburizing atmospheres.  Type 310 is non-magnetic in the annealed and cold worked conditions and is as resistant to corrosion as Type 304/304L.

Chemical Composition
Chemical Composition (wt%) limits as specified in ASTM A167*
Element 310
Carbon 0.25
Chromium 24.0-26.0
Nickel 19.0-22.0
Manganese 2.00
Silicon 1.50
Phosphorus 0.045
Sulfur 0.030
* Maximum, unless range is indicated
Mechanical Properties
Mechanical property requirements for annealed product as specified in ASTM A167.
Property 310
Yield Strength, min. (ksi) 30
Tensile Strength, min. (ksi) 75
Elongation, min. (%) 40
Hardness, max. (Rb) 95
Physical Properties
Physical properties for Type 310 stainless steel
Property 310
Density, lb/in3 0.290
Modulus of Elasticity, psi 29.0 x 106
Coefficient of Thermal Expansion, 68-212˚F, /˚F 8.8 x 10-6
Thermal Conductivity, Btu/ft hr ˚F 8.0
Specific Heat, Btu/lb ˚F 0.12
Electrical Resistivity, Microohm-in 30.7
Standards
Typical standards for Type 310 stainless steel
310
ASTM A167
AMS 5521

Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown herein.  © 2014 RMP Inc. All rights reserved.