Post Stock Login Register

IS 1570 (Part 5) X04Cr18Ni10Nb vs BS 970 (Part 1) 321S31

Strong Match — 100% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 5) X04Cr18Ni10Nb (IS 1570 (Part 5):1985) and BS 970 (Part 1) 321S31 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. IS 1570 (Part 5) X04Cr18Ni10Nb is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 321S31 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 5) X04Cr18Ni10Nb vs BS 970 (Part 1) 321S31 is a 100% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 100%.

Frequently Compared With IS 1570 (Part 5) X04Cr18Ni10Nb:
EN 10088-1 1.4006 EN 10088-1 1.4301 GOST 5632 06Kh23N28 EN 10088-1 1.4401 EN 10088-1 1.4845 GB/T 3280 06Cr19Ni10 GOST 5632 12Kh13 ASTM A959 .- GOST 5632 08X18H10 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
No shared data
OVERALL
100%
Specifications
Property IS 1570 (Part 5) X04Cr18Ni10Nb BS 970 (Part 1) 321S31
Standard IS 1570 (Part 5):1985 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
C (%) <=0.08 <=0.08
Si (%) <=1.0 <=1.0
Mn (%) <=2.0 <=2.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Cr (%) 17.0-19.0 17.0-19.0
Ni (%) 9.0-12.0 9.0-12.0
Nb (%) >=10xC, <=1.0 Not specified
Ti (%) Not specified 5C-0.80
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 5) X04Cr18Ni10Nb BS 970 (Part 1) 321S31
Tensile Strength >=515 MPa Not specified
Yield Strength >=205 MPa (0.2 % proof stress) Not specified
Elongation >=40% (50 mm) Not specified
Hardness <=183 HB; <=88 HRB Not specified
Condition Annealed, quenched or solution treated plates, sheets and strips (Table 2) Not specified
Typical Applications
IS 1570 (Part 5) X04Cr18Ni10Nb
Not documented
BS 970 (Part 1) 321S31
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
Key Differences
Can IS 1570 (Part 5) X04Cr18Ni10Nb Be Substituted With BS 970 (Part 1) 321S31?
IS 1570 (Part 5) X04Cr18Ni10Nb and BS 970 (Part 1) 321S31 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 321S31 is often considered as a substitute for IS 1570 (Part 5) X04Cr18Ni10Nb in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
IS 1570 (Part 5) X04Cr18Ni10Nb
0 active listings and RFQs →
BS 970 (Part 1) 321S31
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 5) X04Cr18Ni10Nb and BS 970 (Part 1) 321S31?
IS 1570 (Part 5) X04Cr18Ni10Nb specifies Nb which is not specified for BS 970 (Part 1) 321S31. BS 970 (Part 1) 321S31 specifies Ti which is not specified for IS 1570 (Part 5) X04Cr18Ni10Nb.
Can IS 1570 (Part 5) X04Cr18Ni10Nb be substituted with BS 970 (Part 1) 321S31?
IS 1570 (Part 5) X04Cr18Ni10Nb and BS 970 (Part 1) 321S31 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 321S31 is often considered as a substitute for IS 1570 (Part 5) X04Cr18Ni10Nb in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.