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IS 1570 (Part 5) X12Cr12 vs BS 970 (Part 3) 420S29

Strong Match — 92.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 5) X12Cr12 (IS 1570 (Part 5):1985) and BS 970 (Part 3) 420S29 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Stainless Steel category. IS 1570 (Part 5) X12Cr12 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 420S29 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 5) X12Cr12 vs BS 970 (Part 3) 420S29 is a 92.4% 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 92.4%.

Frequently Compared With IS 1570 (Part 5) X12Cr12:
GB/T 3280 06Cr19Ni10 IS 1570 (Part 7) 12Cr13H GOST 5632 08X18H10 EN 10088-1 1.4401 GOST 5632 12Kh13 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
92.4%
MECHANICAL MATCH
No shared data
OVERALL
92.4%
Specifications
Property IS 1570 (Part 5) X12Cr12 BS 970 (Part 3) 420S29
Standard IS 1570 (Part 5):1985 BS 970 (Part 3):1991
Category Stainless Steel Stainless Steel
C (%) 0.08-0.15 0.14-0.20
Si (%) <=1.0 <=1.0
Mn (%) <=1.0 <=1.0
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.030
Cr (%) 11.5-13.5 11.5-13.5
Ni (%) <=1.0 <=1.00
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) X12Cr12 BS 970 (Part 3) 420S29
Tensile Strength >=450 MPa Not specified
Yield Strength >=205 MPa (0.2 % proof stress) Not specified
Elongation >=20.0% (50 mm) Not specified
Hardness <=217 HB; <=95 HRB Not specified
Condition Annealed, quenched or solution treated plates, sheets and strips (Table 2) Not specified
Typical Applications
IS 1570 (Part 5) X12Cr12
Not documented
BS 970 (Part 3) 420S29
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; martensitic stainless steel (Table 17)
Can IS 1570 (Part 5) X12Cr12 Be Substituted With BS 970 (Part 3) 420S29?
IS 1570 (Part 5) X12Cr12 and BS 970 (Part 3) 420S29 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 420S29 is often considered as a substitute for IS 1570 (Part 5) X12Cr12 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) X12Cr12
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BS 970 (Part 3) 420S29
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Frequently Asked Questions
What is the difference between IS 1570 (Part 5) X12Cr12 and BS 970 (Part 3) 420S29?
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) X12Cr12 be substituted with BS 970 (Part 3) 420S29?
IS 1570 (Part 5) X12Cr12 and BS 970 (Part 3) 420S29 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 420S29 is often considered as a substitute for IS 1570 (Part 5) X12Cr12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.