HEAT-RESISTANT AUSTENITIC STAINLESS STEEL

SS310

SS310 is a high-chromium, high-nickel austenitic stainless steel developed for elevated-temperature oxidation resistance. It offers better scaling resistance than conventional 18-8 stainless steels.

ASTM specificationASTM A240Specified grade / UNS310 S31000
MATERIAL OVERVIEW

SS310 Information

SS310 is a high-chromium, high-nickel austenitic stainless steel developed for elevated-temperature oxidation resistance. It offers better scaling resistance than conventional 18-8 stainless steels.

Metallic winding and compatible ring components where service conditions are suitable.

Material specificationASTM A240
Specified grade / UNS310 S31000
CHEMICAL COMPOSITION

SS310 Chemical Composition

ASTM A240 · Grade-specific requirements

Chemical composition requirements, mass % — selected grades
Element / requirementValue
C %≤0.25
Mn %≤2.00
P %≤0.045
S %≤0.030
Si %≤1.50
Cr %24.0–26.0
Ni %19.0–22.0
Mo %—
N %—
Cu %—
Other elements—
MECHANICAL PROPERTIES

SS310 Mechanical Properties

ASTM A240 · Grade-specific requirements

Mechanical test requirements — selected grades
Tensile min (MPa)Yield min (MPa)Elongation min (%)Hardness max
51520540≤217 HBW
SPECIFICATION REFERENCE

ASTM A240 Grade Reference

310 S31000

The chemical and mechanical tables on this page use the ASTM A240 requirements for this grade, including the product conditions listed in the standard overview.

View the ASTM A240 comparison tables

PROJECT SUPPORT

Specify SS310 for your gasket

Share your gasket dimensions, service conditions and quantity for SS310 material options and pricing.

Request a Quote
Chat on WhatsApp