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BS 970 EN55 vs IS 1570 (Part 5) X20Cr21Ni12N

Related Material — 66.3% match based on chemical composition and mechanical property overlap.

BS 970 EN55 (BS 970:1955) and IS 1570 (Part 5) X20Cr21Ni12N (IS 1570 (Part 5):1985) are both steel grades. Both fall under the Stainless Steel category. BS 970 EN55 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 5) X20Cr21Ni12N is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 EN55 vs IS 1570 (Part 5) X20Cr21Ni12N is a 66.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 66.3%.

Frequently Compared With BS 970 EN55:
GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
66.3%
MECHANICAL MATCH
No shared data
OVERALL
66.3%
Specifications
Property BS 970 EN55 IS 1570 (Part 5) X20Cr21Ni12N
Standard BS 970:1955 IS 1570 (Part 5):1985
Category Stainless Steel Stainless Steel
C (%) 0.18-0.45 0.15-0.25
Si (%) 1.00-2.50 0.75-1.25
Mn (%) <=1.00 <=1.5
Ni (%) 6.00-12.0 10.5-12.5
Cr (%) >=17.0 20.0-22.0
W (%) 2.00-4.00 Not specified
S (%) <=0.045 <=0.035
P (%) <=0.045 <=0.045
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 EN55 IS 1570 (Part 5) X20Cr21Ni12N
Hardness Not specified <=302 HB
Condition Not specified Valve steel, hardened and tempered (Table 6)
Typical Applications
BS 970 EN55
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars.
IS 1570 (Part 5) X20Cr21Ni12N
Not documented
Key Differences
Can BS 970 EN55 Be Substituted With IS 1570 (Part 5) X20Cr21Ni12N?
BS 970 EN55 and IS 1570 (Part 5) X20Cr21Ni12N 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.
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BS 970 EN55
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IS 1570 (Part 5) X20Cr21Ni12N
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Frequently Asked Questions
What is the difference between BS 970 EN55 and IS 1570 (Part 5) X20Cr21Ni12N?
BS 970 EN55 specifies W which is not specified for IS 1570 (Part 5) X20Cr21Ni12N.
Can BS 970 EN55 be substituted with IS 1570 (Part 5) X20Cr21Ni12N?
BS 970 EN55 and IS 1570 (Part 5) X20Cr21Ni12N 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.