Close Alternative — 79.2% match
based on chemical composition and mechanical property overlap.
IS 6911 X10Cr18Mn9Ni5 (IS 6911:1992) and ASTM A240/A240M S20200 (ASTM A240/A240M:2025) are both steel grades.
Both fall under the Stainless Steel category.
IS 6911 X10Cr18Mn9Ni5 is typically used for stainless and heat-resisting steel plate, sheet and strip (clause 1.1), while ASTM A240/A240M S20200 is commonly used for pressure vessels and general applications (plate, sheet and strip).
IS 6911 X10Cr18Mn9Ni5 is defined under Bureau of Indian Standards (IS), originating from India, while ASTM A240/A240M S20200 is defined under ASTM International, originating from United States.
As per chemical composition, IS 6911 X10Cr18Mn9Ni5 vs ASTM A240/A240M S20200 is a 93.8% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a close alternative overall at 79.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 6911 X10Cr18Mn9Ni5
ASTM A240/A240M S20200
Bend Test (180 deg)
Not required
Not specified
Elongation (50 mm, annealed)
>=40%
Not specified
Hardness (annealed, max)
217 HBS, 95 HRB
Not specified
Tensile Strength (annealed)
>=620 MPa
Not specified
Yield Strength (0.2% proof, annealed)
>=310 MPa
Not specified
Tensile Strength
Not specified
>=620 MPa
Yield Strength
Not specified
>=260 MPa
Elongation
Not specified
>=40%
Hardness
Not specified
<=241 HB
Condition
Not specified
Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
IS 6911 X10Cr18Mn9Ni5
Stainless and heat-resisting steel plate, sheet and strip (clause 1.1)
ASTM A240/A240M S20200
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
ASTM A240/A240M S20200 specifies N which is not specified for IS 6911 X10Cr18Mn9Ni5.
Can IS 6911 X10Cr18Mn9Ni5 Be Substituted With ASTM A240/A240M S20200?
IS 6911 X10Cr18Mn9Ni5 and ASTM A240/A240M S20200 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between IS 6911 X10Cr18Mn9Ni5 and ASTM A240/A240M S20200?
ASTM A240/A240M S20200 specifies N which is not specified for IS 6911 X10Cr18Mn9Ni5.
Can IS 6911 X10Cr18Mn9Ni5 be substituted with ASTM A240/A240M S20200?
IS 6911 X10Cr18Mn9Ni5 and ASTM A240/A240M S20200 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.