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EN 10083-3 35NiCr6 vs BS 970 (Part 1) 637H17

Close Alternative — 71.4% match based on chemical composition and mechanical property overlap.

EN 10083-3 35NiCr6 (EN 10083-3:2006) and BS 970 (Part 1) 637H17 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. EN 10083-3 35NiCr6 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while BS 970 (Part 1) 637H17 is commonly used for case hardening steel supplied to specified hardenability limits (end quench test, table 10).. EN 10083-3 35NiCr6 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 637H17 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN 10083-3 35NiCr6 vs BS 970 (Part 1) 637H17 is a 71.4% 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 71.4%.

Frequently Compared With EN 10083-3 35NiCr6:
NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
71.4%
MECHANICAL MATCH
No shared data
OVERALL
71.4%
Specifications
Property EN 10083-3 35NiCr6 BS 970 (Part 1) 637H17
Standard EN 10083-3:2006 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.30-0.37 0.14-0.20
Cr (%) 0.80-1.10 0.60-1.00
Mn (%) 0.60-0.90 0.60-0.90
Ni (%) 1.20-1.60 0.85-1.25
P (%) <=0.025 <=0.035
S (%) <=0.025 <=0.040
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 35NiCr6 BS 970 (Part 1) 637H17
Condition Quenched and tempered (+QT), ruling section d <= 16 mm Not specified
Elongation 12% min Not specified
Hardness Soft annealed (+A): 223 HBW max Not specified
Tensile Strength 880 to 1080 MPa Not specified
Yield Strength 740 MPa min Not specified
Typical Applications
EN 10083-3 35NiCr6
Quenched and tempered, flame or induction hardened machine parts (clause 1)
BS 970 (Part 1) 637H17
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
Key Differences
Can EN 10083-3 35NiCr6 Be Substituted With BS 970 (Part 1) 637H17?
EN 10083-3 35NiCr6 and BS 970 (Part 1) 637H17 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
EN 10083-3 35NiCr6
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BS 970 (Part 1) 637H17
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Frequently Asked Questions
What is the difference between EN 10083-3 35NiCr6 and BS 970 (Part 1) 637H17?
EN 10083-3 35NiCr6 specifies Si which is not specified for BS 970 (Part 1) 637H17.
Can EN 10083-3 35NiCr6 be substituted with BS 970 (Part 1) 637H17?
EN 10083-3 35NiCr6 and BS 970 (Part 1) 637H17 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.