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BS 970 (Part 1) 590H17 vs IS 4432 16Mn5Cr4

Strong Match — 92.5% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 590H17 (BS 970 (Part 1):1983) and IS 4432 16Mn5Cr4 (IS 4432:1988) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 590H17 is typically used for case hardening steel supplied to specified hardenability limits (end quench test, table 10)., while IS 4432 16Mn5Cr4 is commonly used for forgings and fabrication of case-hardened machine or automobile parts. BS 970 (Part 1) 590H17 is defined under British Standards (BS), originating from United Kingdom, while IS 4432 16Mn5Cr4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 590H17 vs IS 4432 16Mn5Cr4 is a 92.5% 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 92.5%.

Frequently Compared With BS 970 (Part 1) 590H17:
IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
92.5%
MECHANICAL MATCH
No shared data
OVERALL
92.5%
Specifications
Property BS 970 (Part 1) 590H17 IS 4432 16Mn5Cr4
Standard BS 970 (Part 1):1983 IS 4432:1988
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 0.14-0.19
Mn (%) 1.00-1.30 1.00-1.30
Cr (%) 0.80-1.10 0.80-1.10
P (%) <=0.035 <=0.035
S (%) <=0.040 <=0.035
Si (%) Not specified 0.15-0.35
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) 590H17 IS 4432 16Mn5Cr4
Core Tensile Strength Not specified 850-1100 MPa (16 mm) / 800-1050 MPa (30 mm) / 650-950 MPa (63 mm)
Core Yield Strength Not specified >=620 MPa (16 mm) / >=600 MPa (30 mm) / >=450 MPa (63 mm)
Core Elongation Not specified >=9% (16 mm) / >=10% (30 mm) / >=11% (63 mm)
Core Reduction of Area Not specified >=30% (16 mm) / >=40% (30 mm) / >=40% (63 mm)
Hardness, annealed (A) Not specified <=207 HB
Typical Applications
BS 970 (Part 1) 590H17
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
IS 4432 16Mn5Cr4
Forgings and fabrication of case-hardened machine or automobile parts
Key Differences
Can BS 970 (Part 1) 590H17 Be Substituted With IS 4432 16Mn5Cr4?
BS 970 (Part 1) 590H17 and IS 4432 16Mn5Cr4 overlap closely enough on chemistry and mechanical properties that IS 4432 16Mn5Cr4 is often considered as a substitute for BS 970 (Part 1) 590H17 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 1) 590H17
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IS 4432 16Mn5Cr4
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 590H17 and IS 4432 16Mn5Cr4?
IS 4432 16Mn5Cr4 specifies Si which is not specified for BS 970 (Part 1) 590H17.
Can BS 970 (Part 1) 590H17 be substituted with IS 4432 16Mn5Cr4?
BS 970 (Part 1) 590H17 and IS 4432 16Mn5Cr4 overlap closely enough on chemistry and mechanical properties that IS 4432 16Mn5Cr4 is often considered as a substitute for BS 970 (Part 1) 590H17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.