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BS 970 EN351 vs EN 10084 20NiCrMo2-2

Related Material — 69.5% match based on chemical composition and mechanical property overlap.

BS 970 EN351 (BS 970:1955) and EN 10084 20NiCrMo2-2 (EN 10084:2008) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN351 is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strength 45 tons/sq in min., while EN 10084 20NiCrMo2-2 is commonly used for gears, shafts and automotive transmission components. BS 970 EN351 is defined under British Standards (BS), originating from United Kingdom, while EN 10084 20NiCrMo2-2 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN351 vs EN 10084 20NiCrMo2-2 is a 69.5% 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 69.5%.

Frequently Compared With BS 970 EN351:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H 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 4) 10Cr20Mo6
Match Breakdown
CHEMISTRY MATCH
69.5%
MECHANICAL MATCH
No shared data
OVERALL
69.5%
Specifications
Property BS 970 EN351 EN 10084 20NiCrMo2-2
Standard BS 970:1955 EN 10084:2008
Category Alloy Steel Alloy Steel
C (%) <=0.20 0.17-0.23
Si (%) <=0.35 <=0.40
Mn (%) 0.60-1.00 0.65-0.95
Ni (%) 0.60-1.00 0.40-0.70
Cr (%) 0.40-0.80 0.35-0.70
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 EN351 EN 10084 20NiCrMo2-2
Tensile Strength ≥695 MPa (45 tons/sq in, converted) Not specified
Elongation ≥18% 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: 41 to 49 HRC
Hardness Not specified Soft annealed: 212 HB max
Typical Applications
BS 970 EN351
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strength 45 tons/sq in min.
EN 10084 20NiCrMo2-2
Gears, shafts and automotive transmission components
Can BS 970 EN351 Be Substituted With EN 10084 20NiCrMo2-2?
BS 970 EN351 and EN 10084 20NiCrMo2-2 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.
Forms & Sizes Available on M-EX
BS 970 EN351
No active listings currently.
EN 10084 20NiCrMo2-2
Round Bar → (5 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5400–6900 mm (212.6–271.65 in)
On M-EX Right Now
BS 970 EN351
0 active listings and RFQs →
EN 10084 20NiCrMo2-2
5 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN351 and EN 10084 20NiCrMo2-2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN351 be substituted with EN 10084 20NiCrMo2-2?
BS 970 EN351 and EN 10084 20NiCrMo2-2 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.