Silicon Red Brass Rods (UNS C69400) - Mechanical Properties

Silicon red brass UNS C69400 has a copper content of not less than 73%.

The following table shows the mechanical properties of UNS C69400 rods as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell
B C F 30T
H00 19mm (0.75in) 689MPa (100ksi) 393MPa (57ksi) 21% 95 - - -
O60 12.7mm (0.5in) 621MPa (90ksi) 310MPa (45ksi) 20% 85 - - -
  25.4mm (1in) 586MPa (85ksi) 296MPa (43ksi) 25% 85 - - -
  51mm (2in) 552MPa (80ksi) 276MPa (40ksi) 25% 85 - - -

An equivalent material to UNS C69400 copper alloy is ASTM B371.

The chemical composition of UNS C69400 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 80-83
Silicon, Si 3.5-4.5
Lead, Pb 0.3
Iron, Fe 0.2
Zinc, Zn Balance

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.