Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
UNS C27000 and UNS C21000 are both brass grades.
Both fall under the Brass Alloys category.
UNS C27000 is defined under Unified Numbering System (UNS), originating from United States, while UNS C21000 is defined under Unified Numbering System (UNS), originating from United States.
As per chemical composition, UNS C27000 vs UNS C21000 is a 75.4% match.
As per mechanical properties, the match is 23.3%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
UNS C27000
UNS C21000
Yield Strength
~180-230 MPa (H02 half-hard)
~220-280 MPa (H02 half-hard)
Tensile Strength
~400-450 MPa (H02 half-hard)
~330-380 MPa (H02 half-hard)
Elongation
~25-45% (H02 half-hard)
~20-40% (H02 half-hard)
Note
Yellow brass, values for H02 half-hard temper
Gilding metal, values for H02 half-hard temper, common bar/coin stock
Can UNS C27000 Be Substituted With UNS C21000?
UNS C27000 and UNS C21000 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.
What is the difference between UNS C27000 and UNS C21000?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can UNS C27000 be substituted with UNS C21000?
UNS C27000 and UNS C21000 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.