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BS 970 (Part 1) 523H15 vs IS 4367 15Cr3

Strong Match — 85.2% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 523H15 (BS 970 (Part 1):1983) and IS 4367 15Cr3 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 523H15 is typically used for case hardening steel supplied to specified hardenability limits (end quench test, table 10)., while IS 4367 15Cr3 is commonly used for low-alloy chromium case-hardening steel; used for gears, shafts, and transmission components requiring higher core strength and wear resistance than plain carbon case-hardening grades. BS 970 (Part 1) 523H15 is defined under British Standards (BS), originating from United Kingdom, while IS 4367 15Cr3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 523H15 vs IS 4367 15Cr3 is a 85.2% 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 85.2%.

Frequently Compared With BS 970 (Part 1) 523H15:
NF A35-565 100C6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4
Match Breakdown
CHEMISTRY MATCH
85.2%
MECHANICAL MATCH
No shared data
OVERALL
85.2%
Specifications
Property BS 970 (Part 1) 523H15 IS 4367 15Cr3
Standard BS 970 (Part 1):1983 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.12-0.18
Mn (%) 0.30-0.60 0.40-0.60
Cr (%) 0.30-0.60 0.50-0.80
P (%) <=0.035 <=0.035
S (%) <=0.040 <=0.035
Si (%) Not specified 0.10-0.35
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 1) 523H15 IS 4367 15Cr3
Tensile Strength Not specified 600 MPa min
Elongation Not specified >=13%
Izod Impact Not specified 48 J min
Hardness (soft annealed) Not specified <=170 HB
Condition Not specified Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Typical Applications
BS 970 (Part 1) 523H15
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
IS 4367 15Cr3
Low-alloy chromium case-hardening steel; used for gears, shafts, and transmission components requiring higher core strength and wear resistance than plain carbon case-hardening grades
Key Differences
Can BS 970 (Part 1) 523H15 Be Substituted With IS 4367 15Cr3?
BS 970 (Part 1) 523H15 and IS 4367 15Cr3 overlap closely enough on chemistry and mechanical properties that IS 4367 15Cr3 is often considered as a substitute for BS 970 (Part 1) 523H15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
BS 970 (Part 1) 523H15
No active listings currently.
IS 4367 15Cr3
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6400–6700 mm (251.97–263.78 in)
On M-EX Right Now
BS 970 (Part 1) 523H15
0 active listings and RFQs →
IS 4367 15Cr3
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 523H15 and IS 4367 15Cr3?
IS 4367 15Cr3 specifies Si which is not specified for BS 970 (Part 1) 523H15.
Can BS 970 (Part 1) 523H15 be substituted with IS 4367 15Cr3?
BS 970 (Part 1) 523H15 and IS 4367 15Cr3 overlap closely enough on chemistry and mechanical properties that IS 4367 15Cr3 is often considered as a substitute for BS 970 (Part 1) 523H15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.