C69310 Lead-Free Brass

 

 

Alloy: C69310 Lead-Free Brass

Equivalent Grades: CW724R, CuZn21Si3P, Eco Brass®

Forms: Rod / Bar / Hollow Bar / Forging Stock / Fittings

Standards: ASTM B371 / B927, EN 12165

Features: Lead-free, DZR, High strength, NSF certified

Product Form	Metric Size Range	Imperial Size Range	Tolerance (Typical)
Round Bar	Ø10–120 mm	Ø0.394–4.72 in	±0.05–0.20 mm
Hex Bar	10–80 mm	0.394–3.15 in	±0.05–0.20 mm
Square Bar	10–80 mm	0.394–3.15 in	±0.05–0.20 mm
Hollow Bar	Ø20–150 mm	Ø0.79–5.91 in	OD ±0.15 mm / ID ±0.25 mm
Forging Stock	Custom	Custom	As per drawing

 

Property	Typical Value
Tensile Strength	450–550 MPa
Yield Strength	250–350 MPa
Elongation	15–30%
Hardness	110–150 HB
Density	8.4 g/cm³

 

Element	Content (%)
Copper (Cu)	73.0–77.0
Zinc (Zn)	Balance
Silicon (Si)	2.7–3.4
Phosphorus (P)	0.02–0.05
Lead (Pb)	≤0.09
Others	Trace

 

✔ 100% Lead-Free (≤0.09%) - Safe for Drinking Water Systems

Complies with global no-lead regulations including NSF/ANSI 61 & 372.

✔ Excellent Dezincification Resistance

Maintains structure and corrosion resistance in hot, chlorinated, or aggressive water.

✔ High Strength & Superior Wear Resistance

Suitable for high-pressure fittings and long-term mechanical reliability.

✔ Outstanding Machinability

Ideal for high-volume CNC machining, threading, drilling, and forging.

✔ Environmentally Friendly Alloy

An eco-conscious alternative to traditional leaded brasses.

Drinking water fittings & valves

Plumbing connectors & manifolds

HVAC parts

Automotive fuel & hydraulic components

High-pressure pneumatic fittings

Precision CNC turned components

Industrial forged parts

 

To guarantee consistent product quality, we implement:

Full traceability (heat number, mill certificate)

Dimensional inspection using calipers, micrometers & CMM

Mechanical property testing (tensile, hardness)

Chemical composition analysis via spectrometer

Surface integrity checks (cracks, porosity, defects)

Third-party inspection available: SGS / TUV / BV

 

Packaging: Anti-rust paper, plastic film, seaworthy wooden pallets

Lead Time: 7–25 days depending on size & quantity

Export Documents: CO, Form E / FTA, Packing List, Commercial Invoice, Mill Test Certificate (EN 10204 3.1)

Logistics: Support FOB, CIF, DAP, door-to-door shipping globally

 

 

 

Q1: What makes C69310 different from traditional leaded brass?

C69310 contains ≤0.09% lead, significantly lower than traditional brasses such as C36000. It meets NSF/ANSI 61, NSF 372, and EU drinking water regulations while offering higher strength and better corrosion resistance.

Q2: Is C69310 approved for drinking water applications?

Yes. C69310 is fully compliant with international lead-free plumbing standards and is widely used in drinking water valves, fittings, and sanitary hardware.

Q3: Does C69310 have good machinability?

Yes. Although lead-free, C69310 provides excellent machinability due to its silicon-brass composition, producing short chips and stable cutting performance for CNC machining.

Q4: What are the corrosion resistance capabilities of C69310?

C69310 has outstanding dezincification resistance (DZR) and performs well in hot, chlorinated, or aggressive water environments, making it suitable for plumbing and HVAC systems.

Q5: What forms of C69310 do you supply?

We supply round bars, hex bars, square bars, hollow bars, forging stock, and custom machined parts according to ASTM and EN standards.

Q6: Can C69310 be forged?

Yes. C69310 offers excellent forgeability and is often used for high-pressure plumbing components, valve bodies, and precision fittings.

Q7: How does C69310 compare to C69300 or C69320?

C69310: Best overall balance of strength, machinability, and drinking water compliance.

C69300: More commonly used but slightly lower in mechanical properties.

C69320: Higher strength variant for demanding applications.

Q8: What certifications can you provide?

We offer Mill Test Certificates (EN 10204 3.1), chemical composition reports, mechanical property testing, and third-party inspection from SGS, TUV, or BV upon request.

Q9: What are the typical applications of C69310?

C69310 is widely used in potable water fittings, valves, manifolds, automotive fuel systems, hydraulic connectors, and CNC precision machined parts.

Q10: Do you provide custom sizes or fabricated components?

Yes. We provide custom lengths, special profiles, OEM machined parts, forged components, and complete technical support according to drawings.

 

 

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