Strong Match — 98.5% match
based on chemical composition and mechanical property overlap.
SS 14 21 72 2172 and UNI 7845 C45 (UNI 7845:1978) are both steel grades.
Both fall under the Carbon Steel category.
SS 14 21 72 2172 is typically used for shafts,axles,gears,studs,bolts,general engineering components,machine parts, while UNI 7845 C45 is commonly used for shafts,axles,gears,studs,bolts,spindles,rollers,general engineering components.
SS 14 21 72 2172 is defined under Swedish Standards (SS), originating from Sweden, while UNI 7845 C45 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy.
As per chemical composition, SS 14 21 72 2172 vs UNI 7845 C45 is a 97.8% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 98.5%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
SS 14 21 72 2172
UNI 7845 C45
Tensile Strength
620-800 MPa
620-800 MPa
Yield Strength
340-490 MPa
340-490 MPa
Elongation
14-20 %
14-20 %
Hardness
179-235 HB
179-235 HB
Typical Applications
SS 14 21 72 2172
shafts,axles,gears,studs,bolts,general engineering components,machine parts
Can SS 14 21 72 2172 Be Substituted With UNI 7845 C45?
SS 14 21 72 2172 and UNI 7845 C45 overlap closely enough on chemistry and mechanical properties that UNI 7845 C45 is often considered as a substitute for SS 14 21 72 2172 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 SS 14 21 72 2172 and UNI 7845 C45?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can SS 14 21 72 2172 be substituted with UNI 7845 C45?
SS 14 21 72 2172 and UNI 7845 C45 overlap closely enough on chemistry and mechanical properties that UNI 7845 C45 is often considered as a substitute for SS 14 21 72 2172 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.