Post Stock Login Register

ASTM A240/A240M:2025 S30409 Steel: Specifications & Listings

ASTM A240/A240M:2025 S30409: S30409 (type 304H): austenitic (chromium-nickel or chromium-manganese-nickel) stainless steel plate, sheet and strip (UNS S30409). Specified in ASTM A240/A240M:2025.

Category: Stainless Steel
Grade Details
GradeASTM A240/A240M:2025 S30409
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 304H ASTM A959:2011 USA No activity yet
ASTM A276/A276M S30400 ASTM A276/A276M:2017 USA No activity yet
IS 5522 X04Cr19Ni9 IS 5522:2014 India No activity yet
IS 5522 X07Cr18Ni9 IS 5522:2014 India No activity yet
ASTM A276/A276M S30200 ASTM A276/A276M:2017 USA No activity yet
SAE 30304 SAE J405 USA 2 listings, 0 RFQs →
ASTM A959 SS304 ASTM A959:2011 USA 16 listings, 18 RFQs →
ASTM A959 347H ASTM A959:2011 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 304H ASTM A959:2011 Strong Match
ASTM A276/A276M S30400 ASTM A276/A276M:2017 Strong Match
ASTM A240/A240M S30400 ASTM A240/A240M:2025 Strong Match
IS 5522 X04Cr19Ni9 IS 5522:2014 Strong Match
IS 5522 X07Cr18Ni9 IS 5522:2014 Strong Match
ASTM A240/A240M S30200 ASTM A240/A240M:2025 Strong Match
ASTM A240/A240M S34809 ASTM A240/A240M:2025 Strong Match
ASTM A276/A276M S30200 ASTM A276/A276M:2017 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
0.04-0.10 <=2.00 <=0.045 <=0.030 <=0.75 18.0-20.0 8.0-10.5
Mechanical Properties
Tensile Strength >=515 MPa
Yield Strength >=205 MPa
Elongation >=40%
Hardness <=201 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 (%)
All51520540
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
All20192 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

Active ASTM A240/A240M:2025 S30409 Listings on M-EX (For Sale)

+ Create a Listing for this grade

No active ASTM A240/A240M:2025 S30409 listings at this time.

Register for Alerts

Buyer RFQs for ASTM A240/A240M:2025 S30409

+ Post an RFQ for this grade

No open buyer requirements for ASTM A240/A240M:2025 S30409 at this time.

Register for Alerts