Strong Match — 90.7% match
based on chemical composition and mechanical property overlap.
NF A35-552 34NCD6 (NF A35-552:1986) and SS 14 22 58 2258 are both steel grades.
Both fall under the Alloy Steel category.
NF A35-552 34NCD6 is typically used for used for aircraft parts, transmission shafts, gears, crankshafts, connecting rods, and heavy-duty fasteners., while SS 14 22 58 2258 is commonly used for heavy duty shafts,gears,aircraft components,crankshafts,forgings,highly stressed bolts.
NF A35-552 34NCD6 is defined under Association Francaise de Normalisation (NF), originating from France, while SS 14 22 58 2258 is defined under Swedish Standards (SS), originating from Sweden.
As per chemical composition, NF A35-552 34NCD6 vs SS 14 22 58 2258 is a 97% match.
As per mechanical properties, the match is 78.1%.
Combined, this makes them a strong match overall at 90.7%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
NF A35-552 34NCD6
SS 14 22 58 2258
Tensile Strength
900-1100 MPa
900-1100 MPa
Yield Strength
700-850 MPa
700-900 MPa
Elongation
10-14%
11-14 %
Hardness
270-340 HB
260-320 HB
Typical Applications
NF A35-552 34NCD6
Used for aircraft parts, transmission shafts, gears, crankshafts, connecting rods, and heavy-duty fasteners.
SS 14 22 58 2258
heavy duty shafts,gears,aircraft components,crankshafts,forgings,highly stressed bolts
Can NF A35-552 34NCD6 Be Substituted With SS 14 22 58 2258?
NF A35-552 34NCD6 and SS 14 22 58 2258 overlap closely enough on chemistry and mechanical properties that SS 14 22 58 2258 is often considered as a substitute for NF A35-552 34NCD6 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between NF A35-552 34NCD6 and SS 14 22 58 2258?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can NF A35-552 34NCD6 be substituted with SS 14 22 58 2258?
NF A35-552 34NCD6 and SS 14 22 58 2258 overlap closely enough on chemistry and mechanical properties that SS 14 22 58 2258 is often considered as a substitute for NF A35-552 34NCD6 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.