C38500 Architectural Bronze

C38500 Architectural Bronze

60–63%
Copper Content
0.7–1.2%
Lead Content
H02/H04/H06
Temper
C38500 architectural brass is a free-machining copper-zinc alloy offering excellent machinability, good corrosion resistance, and attractive surface appearance. It is widely used in architectural hardware, decorative components, fittings, and precision machined products.
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Lead Time: 3-5 Business Days

Product Overview

C38500 architectural brass is a leaded copper-zinc alloy specifically developed for applications requiring excellent machinability and decorative appearance. Controlled lead additions improve machining efficiency while maintaining good strength, corrosion resistance, and dimensional stability.

Produced through extrusion, drawing, and machining processes, C38500 brass offers smooth cutting performance, reduced tool wear, and excellent surface finish characteristics. It is particularly suitable for architectural and ornamental applications where both aesthetics and manufacturing efficiency are important.

C38500 brass is extensively used in door hardware, window fittings, decorative trim, lighting fixtures, plumbing components, and precision machined parts. It is widely applied across construction, architectural engineering, furniture, and industrial manufacturing industries.

Key Features

Excellent machinability for CNC and screw machining
Good dimensional stability
Smooth surface finish after machining
Good corrosion resistance in general environments
Reliable dimensional stability
Reliable mechanical strength

Available Sizes

Copper Shape Thickness (mm) Width/Diameter (mm) Length (m)
Bar - Φ5-200 1-6
Wire - Φ0.05-10 Customize
Sheet 0.25-6 500-2500 1-6
Plate 6-200 200-3000 1-6
Strip 0.15-6 8-610 Customize
Tube OD: φ2-600; WT:φ0.2-100mm - 1-6
Coil 0.15-6 3-1250 1-6
Foil < 0.15 10-1350 Customize
Profile Customized Customize Customize

* Custom sizes available upon request. Contact our sales team for special requirements.

Technical Specifications

Precision data for engineering decisions. All values tested per ASTM standards.

01 Material Properties

Specification Value Notes
Cu Content 57-60% Free-cutting brass composition
Pb Content 2.5-4.5% Improves machinability
Zn Content Remainder Balanced mechanical properties
Density 8.47 g/cm³ Typical value
Electrical Conductivity ~26% IACS Based on temper
Tensile Strength 350-550 MPa Depends on temper
Elongation ≥15% Typical condition
Fabrication CNC Machining / Turning / Threading Good workability
ASTM Standard ASTM B455 / ASTM B16 EN & JIS available

Applications & Use Cases

Proven solutions across diverse industries. From aerospace to marine environments.

C38500 Architectural Bronze — FAQ

Practical FAQ on C38500 architectural bronze (leaded brass) composition, ASTM specs, properties and sourcing for decorative hardware and forgings.

Despite the name "architectural bronze," C38500 is a wrought leaded brass (Cu-Zn-Pb): Cu 55.0–59.0%, Zn balance, Pb 2.5–3.5%, Fe ≤0.35%. Its warm golden color and good machinability make it a standard choice for decorative and architectural hardware.
ASTM B455 covers C38500 extruded shapes; ASTM B124 covers forgings. It is supplied as extruded bar, rod, plate, strip and forgings for architectural and industrial trim.
As hot-extruded, UTS is about 60 ksi (415 MPa), yield about 20 ksi (140 MPa), elongation ~30%. Electrical conductivity is 26–28% IACS and machinability rates 90 (C36000 = 100).
No. Pb 2.5–3.5% places it outside RoHS limits and it is not approved for potable-water contact. It is used for architectural trim, door and window hardware, locks, decorative plates and non-water components.
Linsy supplies C38500 extruded shapes and forgings to ASTM with custom profiles and lengths, an MTR/MTC, SGS on request, and RoHS/REACH support. Typical lead time is 10–60 days with low MOQ and a 1-hour quoting response.
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