BS 970 (Part 3) 820M17 vs IS 4367 15Ni7Cr4Mo2

Strong Match — 90.4% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 820M17 (BS 970 (Part 3):1991) and IS 4367 15Ni7Cr4Mo2 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 820M17 is defined under British Standards (BS), originating from United Kingdom, while IS 4367 15Ni7Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 3) 820M17 vs IS 4367 15Ni7Cr4Mo2 is a 90.4% 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 90.4%.

Frequently Compared With BS 970 (Part 3) 820M17:
IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4 IS 4367 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
90.4%
MECHANICAL MATCH
No shared data
OVERALL
90.4%
Specifications
Property BS 970 (Part 3) 820M17 IS 4367 15Ni7Cr4Mo2
Standard BS 970 (Part 3):1991 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 0.12-0.18
Si (%) 0.10-0.40 0.10-0.35
Mn (%) 0.60-0.90 0.60-1.00
Cr (%) 0.80-1.20 0.75-1.25
Mo (%) 0.10-0.20 0.10-0.20
Ni (%) 1.50-2.00 1.50-2.00
P (%) <=0.04 <=0.035
S (%) <=0.05 <=0.035
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 (Part 3) 820M17 IS 4367 15Ni7Cr4Mo2
Tensile Strength Not specified 1100 MPa min
Elongation Not specified >=9%
Izod Impact Not specified 35 J min
Hardness (soft annealed) Not specified <=217 HB
Condition Not specified Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Typical Applications
BS 970 (Part 3) 820M17
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
IS 4367 15Ni7Cr4Mo2
Not documented
Can BS 970 (Part 3) 820M17 Be Substituted With IS 4367 15Ni7Cr4Mo2?
BS 970 (Part 3) 820M17 and IS 4367 15Ni7Cr4Mo2 overlap closely enough on chemistry and mechanical properties that IS 4367 15Ni7Cr4Mo2 is often considered as a substitute for BS 970 (Part 3) 820M17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 (Part 3) 820M17
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IS 4367 15Ni7Cr4Mo2
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 820M17 and IS 4367 15Ni7Cr4Mo2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 3) 820M17 be substituted with IS 4367 15Ni7Cr4Mo2?
BS 970 (Part 3) 820M17 and IS 4367 15Ni7Cr4Mo2 overlap closely enough on chemistry and mechanical properties that IS 4367 15Ni7Cr4Mo2 is often considered as a substitute for BS 970 (Part 3) 820M17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.