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IS 6911 X108Cr17Mo vs BS 970 (Part 1) 416S21

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

IS 6911 X108Cr17Mo (IS 6911:1992) and BS 970 (Part 1) 416S21 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Stainless Steel category. IS 6911 X108Cr17Mo is typically used for stainless and heat-resisting steel plate, sheet and strip (clause 1.1), while BS 970 (Part 1) 416S21 is commonly used for ferritic and martensitic stainless and heat resisting steel (section five). IS 6911 X108Cr17Mo is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 416S21 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 6911 X108Cr17Mo vs BS 970 (Part 1) 416S21 is a 72.2% 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 6911 X108Cr17Mo:
IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr13H GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
72.2%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 6911 X108Cr17Mo BS 970 (Part 1) 416S21
Standard IS 6911:1992 BS 970 (Part 1):1991
Category Stainless Steel Stainless Steel
C (%) 0.95-1.20 0.09-0.15
Cr (%) 16.0-18.0 11.5-13.5
Mn (%) <=1.0 <=1.5
Mo (%) <=0.75 <=0.60
Ni (%) <=0.50 <=1.00
P (%) <=0.045 <=0.060
S (%) <=0.030 0.15-0.35
Si (%) <=1.0 <=1.0
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 X108Cr17Mo BS 970 (Part 1) 416S21
Hardness (annealed, max) 285 HBS Not specified
Hardness (quenched and tempered, min) 660 HV, 58 HRC Not specified
Typical Applications
IS 6911 X108Cr17Mo
Stainless and heat-resisting steel plate, sheet and strip (clause 1.1)
BS 970 (Part 1) 416S21
Ferritic and martensitic stainless and heat resisting steel (section five)
Can IS 6911 X108Cr17Mo Be Substituted With BS 970 (Part 1) 416S21?
IS 6911 X108Cr17Mo and BS 970 (Part 1) 416S21 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 6911 X108Cr17Mo
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BS 970 (Part 1) 416S21
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Frequently Asked Questions
What is the difference between IS 6911 X108Cr17Mo and BS 970 (Part 1) 416S21?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 6911 X108Cr17Mo be substituted with BS 970 (Part 1) 416S21?
IS 6911 X108Cr17Mo and BS 970 (Part 1) 416S21 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.