C260 Brass Blanks

At FlexiTurn, we specialize in providing custom C260 Brass Blanks & Pre-Machining Services covering a full spectrum of product forms—including plates, sheets, strips, round bars, tubes, and custom drawn profiles across various tempers (Soft Annealed O60, Half-Hard H02, Hard H04, conforming to ASTM B19 / B36 / B135 standards)—tailored to our customers' exact drawings and procurement specifications. Moving beyond traditional non-ferrous metal suppliers who only sell full mill rolls, full sheets, heavy plates, or require high-volume mill orders, we offer a full suite of front-end pre-machining services: custom blank sizing, high-efficiency cut-to-length precision sawing (±0.1mm tolerance), cold NC waterjet/plate saw cutting, 6-side rough milling/squaring, inner/outer trepanning (preserving solid inner cores), deburring, chemical degreasing, stress relief annealing, and anti-oxidant passivation. By transforming raw rolled sheets and extruded bars into "Machining-Ready Brass Blanks," we empower overseas clients to achieve exceptional deep drawing formability, outstanding ductility, and bright surface finishes, while stripping away 30%+ of unneeded material dead weight—substantially lowering international freight costs. Overcoming raw material price volatility, high minimum order quantities (MOQs), and long lead times, we support our clients with fully compliant import/export credentials and a rigorous quality management system. We provide 3.1 MTR reports with full chemical composition (Copper Cu 68.5%–71.5%), grain size, mechanical properties, and non-destructive testing data on demand for complete lot traceability across ammunition cartridge cases, defense components, precision spring clips, pneumatic stamped fittings, automotive radiator tanks, musical instrument components, and architectural hardware.

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C260 Brass Blanks FAQs

1. What supply chain and processing challenges do FlexiTurn's C260 Brass services solve for overseas procurement?

When purchasing C26000 (CDA 260 / Cartridge Brass 70/30 / CuZn30 / 2.0265 / H70) 70/30 brass, overseas buyers frequently face capital lockup due to volatile copper market prices, expensive shipping fees for full heavy sheets or plates (paying freight on dead-weight scrap), a lack of local cold waterjet profiling or squaring capacity prior to deep drawing, stress corrosion cracking (SCC) risks during severe cold working, and oxidation during ocean transit. We provide flexible, small-batch, cut-to-size C260 blanks with front-end pre-machining—including precision sawing, cold waterjet cutting, 6-side milling/grinding, trepanning, stress relief, and anti-tarnish passivation. Clients receive ready-to-form, highly ductile blanks that load directly into stamping or machining setups.

2. What core performance advantages make C26000 brass the ultimate alloy for cartridge cases and deep drawing?

While C36000 is optimized for free cutting, C26000 is known as 70/30 Cartridge Brass, possessing the highest cold-work ductility and formability of all copper-zinc alloys. Composed of 68.5%–71.5% copper and balance zinc, it forms a single-phase alpha solid solution offering exceptional tensile strength, outstanding deep drawing, cold bending, and spinning capability without premature cracking under intense cold deformation, paired with excellent corrosion resistance and a bright yellow metallic finish.

3. How does FlexiTurn guarantee material authenticity, grain size, and mechanical specs for C260 brass blanks?

Backed by fully certified import/export qualifications, all our C260 brass is sourced directly from tier-1 primary non-ferrous mills certified to ISO 9001 standards. Chemical composition (Copper Cu 68.5%–71.5%, Lead Pb ≤ 0.07%, Iron Fe ≤ 0.05%, Zinc Zn Balance) strictly adheres to ASTM B36 / B19 specifications. Every blank is stamped or tagged with its original furnace heat/lot number. Each shipment is accompanied by an official EN 10204 3.1 Mill Test Report (MTR) detailing spectral chemical analysis, hardness, and average grain size measurements for 100% lot traceability.

4. What tangible financial and operational benefits do clients gain by sourcing customized pre-machined C260 brass blanks?

First, mitigating copper price volatility and capital lockup—clients purchase exact pre-cut sizes for specific project runs without committing to tons of mill coils or full plates. Second, drastically reduced international freight costs—stripping oxide scale and eliminating 30%+ of excess dead weight prior to shipping prevents paying freight on metal scrap. Third, maximizing stamping and forming yields—precise cold waterjet cutting avoids localized heat zones and micro-edge cracking, ensuring maximum yield during downstream deep drawing operations.

5. What anti-oxidation and stress-relief recommendations apply when customizing C260 brass blanks?

Cold-worked C260 brass contains residual stresses that can trigger stress corrosion cracking (SCC) in ammonia-rich environments. We deliver C260 blanks in various conditions: Cold-Rolled, Annealed Soft, 6-Side Milled, or Passivated. Upon request, all blanks undergo stress relief annealing, thorough degreasing, anti-oxidant chemical passivation, and moisture-proof vacuum packaging to ensure optimal metallurgical integrity and tarnish-free surfaces during transoceanic transit and storage.

What you may want to know about C260 Brass Blanks

C260 Brass Raw Material Sourcing, Export Credentials & Heat-Lot Traceability

At FlexiTurn, resilient non-ferrous supply chains, transparent traceability, and compliant export capabilities form the core of our C260 Brass Blanks service:

Compliant Sourcing from Primary Mills: We source exclusively from primary mills certified to ASTM B19/B36 (plate/sheet) or ASTM B135 (tubing) standards, strictly controlling impurity elements (Pb, Fe) to preserve a uniform single-phase alpha microstructure that provides the ultimate ductile foundation for severe cold working.

End-to-End Heat/Lot Number Tracking: From raw material intake, cold waterjet cutting, sawing, grinding, 6-side milling, and trepanning to stress relief annealing, passivation, and final packaging, every individual blank or bundled unit is tagged with its original furnace heat and batch control numbers for 100% lot traceability.

Complete Certification & MTR Documentation: Every shipment includes an EN 10204 3.1 Mill Test Report documenting spectral chemical analysis, tensile strength, elongation, hardness (HRB/HV), and average grain size ratings.

Moisture, Anti-Oxidant & Impact-Proof Export Packaging: All pre-machined C260 brass blanks undergo degreasing washing and anti-tarnish passivation, sealed in moisture-proof plastic film with desiccant packs. They are secured inside fumigation-free export wooden crates with reinforced padding to prevent tarnishing or impact denting during ocean transit.

C260 Brass Core Pre-Machining Services: Precision Sawing, Waterjet Cutting, Stress Relief & Passivation

To meet heavy-duty stamping, deep drawing, and precision pneumatic component manufacturing workflows, FlexiTurn offers versatile pre-processing capabilities for C260 70/30 brass:

Cold NC Waterjet Cutting & Precision Sawing: Utilizing ultra-high-pressure cold waterjet cutting systems and dedicated non-ferrous circular saws, we cut C260 plates and bars with clean, burr-free edges. Cold waterjet cutting generates zero Heat-Affected Zone (HAZ), preventing localized edge hardening that causes cracking during deep drawing.

6-Side Milling & Surface Squaring: We perform 6-side rough milling and squaring on block-shaped die-matching plates, valve, or connector blanks, stripping scale and oxidation to provide clean reference datums and precise perpendicularity.

Trepanning & Annular Core Cutting: For large-diameter solid brass bars or thick plate rings, dedicated trepanning tools slice out internal voids while saving the solid center core for reuse as smaller washers or stamped inserts, dramatically reducing raw material waste on expensive copper alloys.

Stress Relief Annealing & Anti-Oxidant Passivation: We execute controlled low-temperature stress relief annealing on pre-machined blanks to relieve internal residual stresses, followed by an eco-friendly anti-tarnish immersion treatment that seals the brass surface against moisture and patina formation.

Quality Control & Formability Integrity in C260 Brass Pre-Machining

Because C260 70/30 brass is highly sensitive to work hardening and grain size variations, process control is strict:

OES Spectral Analysis & Grain Size/Hardness Checks: Optical Emission Spectrometry (OES) verifies copper-zinc ratios, while metallographic analysis ensures average grain sizes (e.g., 0.025mm–0.045mm target ranges) comply with drawability specs to prevent "orange peel" defects during forming.

Dimensional & Geometrical Inspection: Utilizing micrometers, calipers, and profilometers, final inspections are conducted on cut lengths, milling parallelism, and surface finish before dispatch to leave optimal machining allowances for automated high-speed turning equipment.

Surface Cleanliness & Anti-Tarnish Verification: Degreasing effectiveness is thoroughly verified to ensure zero chip residue, cutting fluid, or oil stains, followed by humidity chamber testing to guarantee export quality standards.

C260 Brass Client Value & Fulfillment Assurance

By choosing FlexiTurn's custom C260 brass precision blanks and pre-machining services, overseas buyers gain distinct competitive edges:

Mitigating Metal Market Risks & High MOQs: Avoid mill-scale tonnage commitments or stockpiling full bars/sheets, purchasing exact pre-cut blank dimensions and quantities to optimize cash flow.

Maximizing Deep Drawing Success Rates: Front-end grain size management, stress relief annealing, and damage-free cold cutting significantly lower scrap rates and part splitting during downstream forming.

Seamless Customs Clearance & Compliance: With full export qualifications, authentic 3.1 MTRs, and industrial certifications, high-value non-ferrous alloy shipments clear customs smoothly while meeting destination country technical standards.

C260 Brass Support & Contact Engineering Team

If you are seeking a reliable supplier with a resilient C26000 70/30 cartridge brass supply chain, full export credentials, and proven capabilities in precision blank waterjet cutting, 6-side milling, stress relief annealing, and anti-oxidant passivation, the FlexiTurn team is ready to assist.

Please send your required drawings (CAD/STEP), material temper/grain size requirements (e.g., O60, H02), blank dimensions, tolerances, and documentation needs (e.g., MTRs, grain size reports) to our engineering sales team at: sales@flexiturn.com. Our technical team will respond within 24 hours with tailored pre-machining guidance and a detailed quotation.