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ASTM A240/A240M:2025 S30500 Steel: Specifications & Listings

ASTM A240/A240M:2025 S30500: S30500 (type 305): austenitic (chromium-nickel or chromium-manganese-nickel) stainless steel plate, sheet and strip (UNS S30500). Specified in ASTM A240/A240M:2025.

Category: Stainless Steel
Grade Details
GradeASTM A240/A240M:2025 S30500
Standard ASTM A240/A240M:2025
ApplicationsPressure vessels and general applications (plate, sheet and strip)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A959 305 ASTM A959:2011 USA No activity yet
ASTM A959 347 ASTM A959:2011 USA No activity yet
BS 970 (Part 3) 321S31 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 347S31 BS 970 (Part 3):1991 UK No activity yet
EN 10088-1 X8CrNiTi18-10 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 305 ASTM A959:2011 Strong Match
ASTM A959 347 ASTM A959:2011 Strong Match
BS 970 (Part 3) 321S31 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 3) 347S31 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 321S31 BS 970 (Part 1):1983 Strong Match
BS 970 (Part 1) 347S31 BS 970 (Part 1):1983 Strong Match
EN 10088-1 X8CrNiTi18-10 EN 10088-1:2014 Strong Match
EN 10088-1 X8CrNiTi18-10 EN 10088-1:2023 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn P S Si Cr Ni
<=0.12 <=2.00 <=0.045 <=0.030 <=0.75 17.0-19.0 10.5-13.0
Mechanical Properties
Tensile Strength >=485 MPa
Yield Strength >=170 MPa
Elongation >=40%
Hardness <=183 HB
Condition Plate, sheet and strip; yield by 0.2 percent offset

More data from ASTM A240/A240M:2025

From the standard
Mechanical properties 1 condition(s)
Product or thicknessTensile strength, min (MPa)Yield strength, min (MPa)Elongation in 50 mm, min (%)
All48517040
Minimum values; yield strength by the 0.2 percent offset method.
Source: ASTM A240/A240M:2025, Table 2
Hardness 1 condition(s)
Product or thicknessBrinell HBW, maxRockwell, max
All18388 HRBW
Maximum values; either Brinell or Rockwell scale may be used.
Source: ASTM A240/A240M:2025, Table 2
Cold bend 1 value
Cold bend angle
not required
Bend tests are not required for chromium steels thicker than 1 in. [25 mm] or for any austenitic or duplex steel regardless of thickness.
Source: ASTM A240/A240M:2025, Table 2

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