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IS 1570 (Part 5) X55Cr21Mn8Ni2N vs IS 1570 (Part 5) X70Cr21Mn6Ni2N

Close Alternative — 84.6% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 5) X55Cr21Mn8Ni2N (IS 1570 (Part 5):1985) and IS 1570 (Part 5) X70Cr21Mn6Ni2N (IS 1570 (Part 5):1985) are both steel grades. Both fall under the Stainless Steel category. IS 1570 (Part 5) X55Cr21Mn8Ni2N is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 5) X70Cr21Mn6Ni2N is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 5) X55Cr21Mn8Ni2N vs IS 1570 (Part 5) X70Cr21Mn6Ni2N is a 76.9% match. As per mechanical properties, the match is 100%. Combined, this makes them a close alternative overall at 84.6%.

Frequently Compared With IS 1570 (Part 5) X55Cr21Mn8Ni2N:
GB/T 3280 06Cr19Ni10 EN 10088-1 1.4845 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr13H GOST 5632 12Kh13 EN 10088-1 1.4301 ASTM A959 .- IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
76.9%
MECHANICAL MATCH
100%
OVERALL
84.6%
Specifications
Property IS 1570 (Part 5) X55Cr21Mn8Ni2N IS 1570 (Part 5) X70Cr21Mn6Ni2N
Standard IS 1570 (Part 5):1985 IS 1570 (Part 5):1985
Category Stainless Steel Stainless Steel
C (%) 0.50-0.60 0.65-0.75
Si (%) <=1.0 0.45-0.85
Mn (%) 7.0-9.5 5.5-7.0
P (%) <=0.045 <=0.045
S (%) <=0.035 <=0.035
Cr (%) 20.0-22.0 20.0-22.0
Ni (%) 1.5-2.75 1.4-1.9
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 5) X55Cr21Mn8Ni2N IS 1570 (Part 5) X70Cr21Mn6Ni2N
Hardness >=321 HB >=321 HB
Condition Valve steel, hardened and tempered (Table 6) Valve steel, hardened and tempered (Table 6)
Can IS 1570 (Part 5) X55Cr21Mn8Ni2N Be Substituted With IS 1570 (Part 5) X70Cr21Mn6Ni2N?
IS 1570 (Part 5) X55Cr21Mn8Ni2N and IS 1570 (Part 5) X70Cr21Mn6Ni2N 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.
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IS 1570 (Part 5) X55Cr21Mn8Ni2N
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IS 1570 (Part 5) X70Cr21Mn6Ni2N
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Frequently Asked Questions
What is the difference between IS 1570 (Part 5) X55Cr21Mn8Ni2N and IS 1570 (Part 5) X70Cr21Mn6Ni2N?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 1570 (Part 5) X55Cr21Mn8Ni2N be substituted with IS 1570 (Part 5) X70Cr21Mn6Ni2N?
IS 1570 (Part 5) X55Cr21Mn8Ni2N and IS 1570 (Part 5) X70Cr21Mn6Ni2N 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.