Brass C26000

C26000 brass, often referred to as "70/30 brass" or "casing brass," is the most ductile of all brass alloys. It achieves a perfect balance between strength and ductility, making it a preferred material for cold working, deep drawing, and complex bending. While its machinability is not as good as leaded C36000, its excellent corrosion resistance and superior surface finish make it indispensable in electrical connectors, ammunition assemblies, and high-end decorative hardware. At Jucheng Precision, we perfectly solve the long chip challenge of C26000 through optimized tool geometry and high-precision CNC processes, providing you with dimensionally accurate and easily re-formed precision brass parts.

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Brass C26000

C26000 Machining Capabilities

能力 技術的説明 Juchengの強み
Precision CNC Turning C26000 is more ductile than C360. We use specialized tool geometries to ensure clean cuts on thin-walled electrical terminals. Our multi-spindle lathes maintain exceptional concentricity for small-diameter pins and sockets used in critical connectors.
Complex Milling & Drilling Machining intricate features into 70/30 brass plates and blocks. We utilize high-speed spindles and polished carbide tools to prevent the material from “smearing,” ensuring sharp edges and tight tolerances.
Secondary Forming Integration Combining CNC machining with secondary bending or swaging, utilizing C26000’s legendary cold-workability. Jucheng provides integrated manufacturing: we machine the base part and then perform precision forming to create complex terminal geometries.
高品質な表面仕上げ Achieving smooth finishes (Ra 0.4μm) suitable for subsequent Silver or Gold plating. Ensures maximum electrical contact efficiency and corrosion protection for high-end electronics.

Fabrication Guidelines for C26000 Brass

切りくず制御：
C26000 does not contain lead. Unlike “free-machining” brass, it produces long, stringy chips. ヒント: We use aggressive chip-breakers and high-pressure coolant to prevent chip entanglement during automated runs.

Superior Cold Workability:
This is the best brass for cold working (bending, drawing, heading). ヒント: If your part requires significant deformation after machining, C26000 is the only choice.

Work Hardening:
C26000 hardens rapidly during machining. ヒント: We maintain constant tool engagement and sharp edges to avoid surface glazing and dimensional drift.

Stress Corrosion Cracking:
High-zinc brasses like C26000 can crack in the presence of ammonia or moisture if internal stresses are high. ヒント: We offer stress-relief annealing post-machining to ensure long-term reliability.

主な用途

Electrical & Electronics
Socket connectors, terminals, lamp fixtures, and switch components requiring high conductivity and ductility.

Ammunition & Defense
Prototyping of cartridge cases and shell components where the material’s strength and elasticity are critical.

Automotive Radiators
Core tubes and tank components due to excellent thermal conductivity and corrosion resistance.

Musical Instruments
Precision components for brass instruments where acoustic resonance and formability are valued.

特性

密度 8.53 g/cm³
引張強度 300 - 600 MPa
降伏強度 100 - 450 MPa
硬さ 70 - 150 HV
破断伸び 40 - 65%
熱伝導率 120 W/m-K
電気伝導率 28% IACS
融点 915 - 955 °C
被削性評価 30%
溶接性 良好
最大部品サイズ 2000 x 800 x 600 mm