IS 11169 (Part 2) X10Cr18Ni8 vs BS 970 (Part 1) 303S31
Close Alternative — 74.2% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 2) X10Cr18Ni8 (IS 11169 (Part 2):2023) and BS 970 (Part 1) 303S31 (BS 970 (Part 1):1983) are both steel grades.
Both fall under the Stainless Steel category.
IS 11169 (Part 2) X10Cr18Ni8 is typically used for cold heading and cold extrusion of stainless steel parts; the standard covers wires, wire rods and bars of 0.8 to 50 mm (clause 1.1, table 11), while BS 970 (Part 1) 303S31 is commonly used for austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (table 14, with table 15 for the cold drawn condition)..
IS 11169 (Part 2) X10Cr18Ni8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 303S31 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 11169 (Part 2) X10Cr18Ni8 vs BS 970 (Part 1) 303S31 is a 74.2% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 74.2%.
Frequently Compared With IS 11169 (Part 2) X10Cr18Ni8:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 11169 (Part 2) X10Cr18Ni8
BS 970 (Part 1) 303S31
Reduction of Area, solution annealed (+AT)
>=65% (over 5 to 50 mm)
Not specified
Tensile Strength, solution annealed (+AT)
<=660 MPa (over 5 to 50 mm)
Not specified
Typical Applications
IS 11169 (Part 2) X10Cr18Ni8
Cold heading and cold extrusion of stainless steel parts; the standard covers wires, wire rods and bars of 0.8 to 50 mm (clause 1.1, Table 11)
BS 970 (Part 1) 303S31
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
Key Differences
IS 11169 (Part 2) X10Cr18Ni8 specifies Cu, N which are not specified for BS 970 (Part 1) 303S31.
Can IS 11169 (Part 2) X10Cr18Ni8 Be Substituted With BS 970 (Part 1) 303S31?
IS 11169 (Part 2) X10Cr18Ni8 and BS 970 (Part 1) 303S31 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 11169 (Part 2) X10Cr18Ni8 and BS 970 (Part 1) 303S31?
IS 11169 (Part 2) X10Cr18Ni8 specifies Cu, N which are not specified for BS 970 (Part 1) 303S31.
Can IS 11169 (Part 2) X10Cr18Ni8 be substituted with BS 970 (Part 1) 303S31?
IS 11169 (Part 2) X10Cr18Ni8 and BS 970 (Part 1) 303S31 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.