IS 6911 X04Cr18Ni10Nb vs IS 1570 (Part 7) 11Cr17Ni13W3TiH
Minimal Match — 41.9% match
based on chemical composition and mechanical property overlap.
IS 6911 X04Cr18Ni10Nb (IS 6911:1992) and IS 1570 (Part 7) 11Cr17Ni13W3TiH (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
IS 6911 X04Cr18Ni10Nb is typically used for stainless and heat-resisting steel plate, sheet and strip (clause 1.1), while IS 1570 (Part 7) 11Cr17Ni13W3TiH is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
IS 6911 X04Cr18Ni10Nb is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 7) 11Cr17Ni13W3TiH is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 6911 X04Cr18Ni10Nb vs IS 1570 (Part 7) 11Cr17Ni13W3TiH is a 62.9% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 41.9%.
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 X04Cr18Ni10Nb
IS 1570 (Part 7) 11Cr17Ni13W3TiH
Bend Test (180 deg)
Not required
Not specified
Elongation (50 mm, annealed)
>=35%
Not specified
Hardness (annealed, max)
192 HBS, 92 HRB
Not specified
Tensile Strength (annealed)
>=490 MPa
Not specified
Yield Strength (0.2% proof, annealed)
>=210 MPa
Not specified
Tensile Strength
Not specified
600-800 MPa
Yield Strength
Not specified
>=390 MPa (0.2 % proof stress)
Elongation
Not specified
>=25%
Condition
Not specified
Bars, forgings, pipes, hot cold worked, thickness up to 60 (first row of Table 3)
Typical Applications
IS 6911 X04Cr18Ni10Nb
Stainless and heat-resisting steel plate, sheet and strip (clause 1.1)
IS 1570 (Part 7) 11Cr17Ni13W3TiH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
IS 6911 X04Cr18Ni10Nb specifies Nb which is not specified for IS 1570 (Part 7) 11Cr17Ni13W3TiH.
IS 1570 (Part 7) 11Cr17Ni13W3TiH specifies W, Ti, B which are not specified for IS 6911 X04Cr18Ni10Nb.
Can IS 6911 X04Cr18Ni10Nb Be Substituted With IS 1570 (Part 7) 11Cr17Ni13W3TiH?
IS 6911 X04Cr18Ni10Nb and IS 1570 (Part 7) 11Cr17Ni13W3TiH share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between IS 6911 X04Cr18Ni10Nb and IS 1570 (Part 7) 11Cr17Ni13W3TiH?
IS 6911 X04Cr18Ni10Nb specifies Nb which is not specified for IS 1570 (Part 7) 11Cr17Ni13W3TiH. IS 1570 (Part 7) 11Cr17Ni13W3TiH specifies W, Ti, B which are not specified for IS 6911 X04Cr18Ni10Nb.
Can IS 6911 X04Cr18Ni10Nb be substituted with IS 1570 (Part 7) 11Cr17Ni13W3TiH?
IS 6911 X04Cr18Ni10Nb and IS 1570 (Part 7) 11Cr17Ni13W3TiH share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.