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BS 970 EN352 vs EN 10084 17NiCrMo6-4

Related Material — 67.1% match based on chemical composition and mechanical property overlap.

BS 970 EN352 (BS 970:1955) and EN 10084 17NiCrMo6-4 (EN 10084:2008) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN352 is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strength 55 tons/sq in min., while EN 10084 17NiCrMo6-4 is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1). BS 970 EN352 is defined under British Standards (BS), originating from United Kingdom, while EN 10084 17NiCrMo6-4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN352 vs EN 10084 17NiCrMo6-4 is a 67.1% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 67.1%.

Frequently Compared With BS 970 EN352:
IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4 NF A35-565 100C6 UNI 11234 100Cr6
Match Breakdown
CHEMISTRY MATCH
67.1%
MECHANICAL MATCH
No shared data
OVERALL
67.1%
Specifications
Property BS 970 EN352 EN 10084 17NiCrMo6-4
Standard BS 970:1955 EN 10084:2008
Category Alloy Steel Alloy Steel
C (%) <=0.20 0.14-0.20
Si (%) <=0.35 <=0.40
Mn (%) 0.50-1.00 0.60-0.90
Ni (%) 0.85-1.25 1.20-1.50
Cr (%) 0.60-1.00 0.80-1.10
Mo (%) <=0.10 0.15-0.25
S (%) <=0.050 <=0.035
P (%) <=0.050 <=0.025
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 EN352 EN 10084 17NiCrMo6-4
Tensile Strength ≥849 MPa (55 tons/sq in, converted) Not specified
Elongation ≥15% Not specified
Condition core, min (lowest-strength condition of the standard) Soft annealed
Hardenability Not specified +H band at 1.5 mm from the quenched end: 40 to 48 HRC
Hardness Not specified Soft annealed: 229 HB max
Typical Applications
BS 970 EN352
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strength 55 tons/sq in min.
EN 10084 17NiCrMo6-4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can BS 970 EN352 Be Substituted With EN 10084 17NiCrMo6-4?
BS 970 EN352 and EN 10084 17NiCrMo6-4 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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BS 970 EN352
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EN 10084 17NiCrMo6-4
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Frequently Asked Questions
What is the difference between BS 970 EN352 and EN 10084 17NiCrMo6-4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN352 be substituted with EN 10084 17NiCrMo6-4?
BS 970 EN352 and EN 10084 17NiCrMo6-4 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.