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BS 970 (Part 1) 174H20 vs BS 970 (Part 1) 173H16

Strong Match — 90.3% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 174H20 (BS 970 (Part 1):1991) and BS 970 (Part 1) 173H16 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 174H20 is typically used for case hardening steel (section four), while BS 970 (Part 1) 173H16 is commonly used for case hardening steel supplied to specified hardenability limits (end quench test, table 10).. BS 970 (Part 1) 174H20 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 173H16 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 174H20 vs BS 970 (Part 1) 173H16 is a 90.3% 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 90.3%.

Frequently Compared With BS 970 (Part 1) 174H20:
IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
90.3%
MECHANICAL MATCH
No shared data
OVERALL
90.3%
Specifications
Property BS 970 (Part 1) 174H20 BS 970 (Part 1) 173H16
Standard BS 970 (Part 1):1991 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.17-0.23 0.13-0.19
Mn (%) 1.20-1.50 1.10-1.40
P (%) <=0.060 <=0.060
S (%) 0.03-0.06 0.03-0.06
B (%) 0.0005-0.005 0.0005-0.005
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
BS 970 (Part 1) 174H20
Case hardening steel (section four)
BS 970 (Part 1) 173H16
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
Can BS 970 (Part 1) 174H20 Be Substituted With BS 970 (Part 1) 173H16?
BS 970 (Part 1) 174H20 and BS 970 (Part 1) 173H16 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 173H16 is often considered as a substitute for BS 970 (Part 1) 174H20 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) 174H20
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BS 970 (Part 1) 173H16
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 174H20 and BS 970 (Part 1) 173H16?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 174H20 be substituted with BS 970 (Part 1) 173H16?
BS 970 (Part 1) 174H20 and BS 970 (Part 1) 173H16 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 173H16 is often considered as a substitute for BS 970 (Part 1) 174H20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.