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IS 1570 (Part 5) X45Cr9Si3 vs BS 970 (Part 1) 430S17

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 5) X45Cr9Si3 (IS 1570 (Part 5):1985) and BS 970 (Part 1) 430S17 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Stainless Steel category. IS 1570 (Part 5) X45Cr9Si3 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 430S17 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 5) X45Cr9Si3 vs BS 970 (Part 1) 430S17 is a 72.5% 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 69.9%.

Frequently Compared With IS 1570 (Part 5) X45Cr9Si3:
EN 10088-1 1.4845 GOST 5632 12Kh13 GOST 5632 08X18H10 GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4006 IS 1570 (Part 7) 12Cr13H IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
72.5%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 1570 (Part 5) X45Cr9Si3 BS 970 (Part 1) 430S17
Standard IS 1570 (Part 5):1985 BS 970 (Part 1):1991
Category Stainless Steel Stainless Steel
C (%) 0.40-0.50 <=0.08
Si (%) 3.0-3.75 <=1.0
Mn (%) 0.30-0.60 <=1.0
P (%) <=0.045 <=0.040
S (%) <=0.050 <=0.030
Cr (%) 7.5-9.5 16.0-18.0
Ni (%) <=0.50 <=0.50
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) X45Cr9Si3 BS 970 (Part 1) 430S17
Hardness 255-293 HB Not specified
Condition Valve steel, hardened and tempered (Table 6) Not specified
Typical Applications
IS 1570 (Part 5) X45Cr9Si3
Not documented
BS 970 (Part 1) 430S17
Ferritic and martensitic stainless and heat resisting steel (section five)
Can IS 1570 (Part 5) X45Cr9Si3 Be Substituted With BS 970 (Part 1) 430S17?
IS 1570 (Part 5) X45Cr9Si3 and BS 970 (Part 1) 430S17 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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IS 1570 (Part 5) X45Cr9Si3
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BS 970 (Part 1) 430S17
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Frequently Asked Questions
What is the difference between IS 1570 (Part 5) X45Cr9Si3 and BS 970 (Part 1) 430S17?
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) X45Cr9Si3 be substituted with BS 970 (Part 1) 430S17?
IS 1570 (Part 5) X45Cr9Si3 and BS 970 (Part 1) 430S17 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.