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EN 10083-3 20MnB5 vs BS 970 (Part 1) 174H20

Strong Match — 87.5% match based on chemical composition and mechanical property overlap.

EN 10083-3 20MnB5 (EN 10083-3:2006) and BS 970 (Part 1) 174H20 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. EN 10083-3 20MnB5 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while BS 970 (Part 1) 174H20 is commonly used for case hardening steel (section four). EN 10083-3 20MnB5 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 174H20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN 10083-3 20MnB5 vs BS 970 (Part 1) 174H20 is a 87.5% 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 87.5%.

Frequently Compared With EN 10083-3 20MnB5:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
87.5%
MECHANICAL MATCH
No shared data
OVERALL
87.5%
Specifications
Property EN 10083-3 20MnB5 BS 970 (Part 1) 174H20
Standard EN 10083-3:2006 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
B (%) 0.0008-0.0050 0.0005-0.005
C (%) 0.17-0.23 0.17-0.23
Mn (%) 1.10-1.40 1.20-1.50
P (%) <=0.025 <=0.060
S (%) <=0.035 0.03-0.06
Si (%) <=0.40 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 EN 10083-3 20MnB5 BS 970 (Part 1) 174H20
Condition Quenched and tempered (+QT), ruling section d <= 16 mm Not specified
Elongation 14% min Not specified
Tensile Strength 900 to 1050 MPa Not specified
Yield Strength 700 MPa min Not specified
Typical Applications
EN 10083-3 20MnB5
Quenched and tempered, flame or induction hardened machine parts (clause 1)
BS 970 (Part 1) 174H20
Case hardening steel (section four)
Key Differences
Can EN 10083-3 20MnB5 Be Substituted With BS 970 (Part 1) 174H20?
EN 10083-3 20MnB5 and BS 970 (Part 1) 174H20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 174H20 is often considered as a substitute for EN 10083-3 20MnB5 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
EN 10083-3 20MnB5
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BS 970 (Part 1) 174H20
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Frequently Asked Questions
What is the difference between EN 10083-3 20MnB5 and BS 970 (Part 1) 174H20?
EN 10083-3 20MnB5 specifies Si which is not specified for BS 970 (Part 1) 174H20.
Can EN 10083-3 20MnB5 be substituted with BS 970 (Part 1) 174H20?
EN 10083-3 20MnB5 and BS 970 (Part 1) 174H20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 174H20 is often considered as a substitute for EN 10083-3 20MnB5 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.