Bronze families — composition comparison: Consider the statement: “Manganese bronze contains more copper than silicon bronze.” Choose the correct evaluation.

Introduction / Context:
Trade names like “manganese bronze” and “silicon bronze” often mislead engineers about actual compositions. Understanding the broad families helps avoid specification errors in marine hardware, fasteners, and bearings where strength and corrosion resistance matter.

Given Data / Assumptions:

• Manganese bronze is commonly a high-strength brass (Cu–Zn) with Mn and sometimes Al/Fe; its copper content is typically much lower than 90%.
• Silicon bronze is Cu-rich, generally around 94–97% Cu with ~2–4% Si and minor Mn.
• We compare representative compositions, not an extreme proprietary grade.

Concept / Approach:
Typical manganese bronze grades have copper around 55–65% with substantial zinc, plus manganese for strength/hardness. In contrast, silicon bronze has copper in the mid-90% range. Therefore, the assertion that manganese bronze contains more copper than silicon bronze is false for standard engineering grades; in fact, silic on bronze generally contains significantly more copper.

Step-by-Step Solution:
List typical Cu contents: manganese bronze ~60% Cu; silicon bronze ~95% Cu.Compare numerically: 60% < 95%.Conclude the statement is incorrect.Answer: No.

Verification / Alternative check:
Standards/catalogues for C86300-type manganese bronze versus C65500-type silicon bronze show the copper percentages aligning with the above comparison.

Why Other Options Are Wrong:
“Only for high-manganese variants” and “depends on heat treatment” do not change the basic composition reality.

“Both contain the same copper percentage” contradicts standard grades.

Common Pitfalls:
Equating the word “bronze” with “very high copper content” across all families; confusing brass (Cu–Zn) based bronzes with true bronzes.

Final Answer:
No