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BS 970 (Part 3) 835M15 vs IS 1570 (Part 4) 15Ni13Cr3Mo2

Close Alternative — 74.7% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 835M15 (BS 970 (Part 3):1991) and IS 1570 (Part 4) 15Ni13Cr3Mo2 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 835M15 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 4) 15Ni13Cr3Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 3) 835M15 vs IS 1570 (Part 4) 15Ni13Cr3Mo2 is a 74.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 74.7%.

Frequently Compared With BS 970 (Part 3) 835M15:
NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
74.7%
MECHANICAL MATCH
No shared data
OVERALL
74.7%
Specifications
Property BS 970 (Part 3) 835M15 IS 1570 (Part 4) 15Ni13Cr3Mo2
Standard BS 970 (Part 3):1991 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.12-0.18
Si (%) 0.10-0.40 0.15-0.35
Mn (%) 0.25-0.50 0.30-0.60
Cr (%) 1.00-1.40 0.60-1.10
Mo (%) 0.15-0.30 0.10-0.25
Ni (%) 3.90-4.30 3.00-3.75
P (%) <=0.04 Not specified
S (%) <=0.05 Not specified
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) 835M15 IS 1570 (Part 4) 15Ni13Cr3Mo2
Tensile Strength Not specified >=1080 MPa
Elongation Not specified >=8%
Izod Impact Not specified >=35 J
Condition Not specified Case hardening steel, refined and quenched, core properties
Typical Applications
BS 970 (Part 3) 835M15
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
IS 1570 (Part 4) 15Ni13Cr3Mo2
Not documented
Key Differences
Can BS 970 (Part 3) 835M15 Be Substituted With IS 1570 (Part 4) 15Ni13Cr3Mo2?
BS 970 (Part 3) 835M15 and IS 1570 (Part 4) 15Ni13Cr3Mo2 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
BS 970 (Part 3) 835M15
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IS 1570 (Part 4) 15Ni13Cr3Mo2
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 835M15 and IS 1570 (Part 4) 15Ni13Cr3Mo2?
BS 970 (Part 3) 835M15 specifies P, S which are not specified for IS 1570 (Part 4) 15Ni13Cr3Mo2.
Can BS 970 (Part 3) 835M15 be substituted with IS 1570 (Part 4) 15Ni13Cr3Mo2?
BS 970 (Part 3) 835M15 and IS 1570 (Part 4) 15Ni13Cr3Mo2 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.