CW614N and CW617N are two of the most important brass alloys used globally for precision CNC machining, automated screw machine production, and high-volume turned part manufacturing. At Cable Glands India, we are a dedicated manufacturer and exporter of CW614N and CW617N brass machined parts, serving customers in the USA, UK, Germany, Australia, and Canada. Our Jamnagar facility uses Swiss-type CNC lathes and multi-axis machining centres to deliver parts to ±0.005mm tolerances.

CW614N Brass – Free-Machining Leaded Brass

CW614N (also known as EN 12164 CW614N, BS CZ121, or ASTM C36000) is a free-cutting leaded brass alloy containing 57–59% copper, 37.5–41.5% zinc, and 2.5–3.5% lead. The lead content provides a machinability rating of 100% — making it the global reference standard for machinability. CW614N is ideal for high-speed automatic screw machine production and precision CNC turning where maximum material removal rate is required.

CW617N Brass – Dezincification Resistant (DZR) Brass

CW617N (also known as EN 12164 CW617N, BS CZ132, or DZR Brass) is a dezincification-resistant leaded brass containing approximately 57–59% copper, 39–42% zinc, 1.6–2.5% lead, and small additions of arsenic (0.02–0.15%) to inhibit dezincification. CW617N is mandatory in many European countries (UK WRAS, Germany DVGW) for potable water fittings, valves, and plumbing components where dezincification resistance is a regulatory requirement.

CW614N Machined Parts We Manufacture

1. CW614N Cable Gland Bodies and Lock Nuts

Metric, PG-thread, NPT, and BSP cable gland bodies machined from CW614N brass hexagonal bar. Available with nickel, tin, or chrome plating. Certified to IEC 60079, ATEX, and IP66/IP68 ratings.

2. CW614N Compression Fittings

Two-part and three-part compression fittings for copper tube, PE pipe, and PEX tubing. Manufactured to EN 1254, DIN 2353, and BSEN standards.

3. CW614N Valve Bodies and Stems

Ball valve bodies, gate valve stems, and needle valve components for industrial gas, pneumatics, and hydraulic systems — rated to PN16, PN25, and PN40 pressure classes.

4. CW614N Precision Turned Components

Spacers, standoffs, bushings, threaded pins, connectors, and custom turned parts manufactured from CW614N brass round and hexagonal bar stock (3mm to 100mm diameter).

CW617N Machined Parts We Manufacture

1. CW617N DZR Plumbing Fittings

WRAS-approved CW617N dezincification-resistant fittings for potable water: elbows, tees, couplings, stop valves, and service valves. Suitable for hot and cold water systems up to 110°C.

2. CW617N Ball Valve Bodies

Full-bore and reduced-bore CW617N brass ball valve bodies for water treatment, HVAC, and gas distribution — compliant with EN 13828, BS 6675, and ISO 15848.

3. CW617N Meter Fittings and Adapters

Water meter tail pieces, manifold connections, and isolation valve adapters manufactured from CW617N DZR brass for municipal water infrastructure.

4. CW617N Cable Glands (DZR Grade)

For environments where both cable management and dezincification resistance are required (e.g., humid coastal installations, water treatment plants), we offer CW617N cable glands.

Material Grades & International Equivalents

Standard	CW614N Equivalent	CW617N Equivalent	Notes
EN / DIN (Europe)	CW614N (EN 12164)	CW617N (EN 12164)	Primary European designation
BS (UK)	CZ121 (BS 2874)	CZ132 (BS 2874)	UK designation
ASTM (USA)	C36000	C36000 + As inhibitor	Closest US equivalent
DIN (Germany)	Ms58 / 2.0401	Ms58Pb DZR	German DIN designation
JIS (Japan)	C3601	C3601 + DZR treatment	Japanese equivalent
IS (India)	IS 319 Grade I	IS 319 DZR Grade	Indian Standard

Key Differences: CW614N vs CW617N

Property	CW614N	CW617N
Lead Content	2.5–3.5%	1.6–2.5%
Arsenic (DZR inhibitor)	None	0.02–0.15%
Dezincification Resistance	No	Yes (WRAS / DVGW approved)
Machinability	100% (best)	90–95%
Potable Water Use	Restricted in EU/UK	Approved (WRAS, KTW)
Cost	Lower	Slightly higher (As addition)
Applications	General machining, cable glands	Plumbing, water systems

Applications of CW614N and CW617N Brass Parts

• Cable Glands and Electrical Enclosure Hardware (CW614N)
• Potable Water Plumbing Fittings (CW617N)
• Gas Distribution Valves and Fittings
• HVAC and Refrigeration Components
• Pneumatic and Hydraulic Systems
• Automotive Fuel and Brake System Parts
• Electronic and Telecom Hardware
• Irrigation and Agricultural Valves

Why Choose Cable Glands India?

• Material Expertise: Full understanding of CW614N vs CW617N selection criteria — we guide customers on the right alloy for their application.
• Certifications: ISO 9001:2015; WRAS-compliant material supply; RoHS declarations; CE marking support.
• Export Documentation: EUR1 certificates, FORM A (GSP), Certificate of Origin for US/EU/UK customs compliance.
• Jamnagar Precision Machining: 200+ CNC machines, in-house plating, thread gauging, and CMM inspection.
• USA Export Experience: HTS code 7419.99, 7415.10 — we handle all US import documentation requirements.

Frequently Asked Questions – CW614N & CW617N Brass

Q1: What is the difference between CW614N and CW617N?

A: CW614N is a standard free-cutting leaded brass (100% machinability) used for general precision machining. CW617N is a dezincification-resistant (DZR) version containing arsenic inhibitors — mandatory for potable water fittings in the UK (WRAS) and Germany (DVGW).

Q2: Is CW617N approved for drinking water?

A: Yes. CW617N meets WRAS (UK Water Regulations Advisory Scheme), KTW (Germany), and ACS (France) approvals for contact with potable water. CW614N is generally not approved for direct contact with drinking water in EU/UK.

Q3: What is the US equivalent of CW614N?

A: The US equivalent of CW614N is ASTM C36000 (also known as Brass 360 or Free-Cutting Brass). Both are free-machining leaded brasses with similar copper-zinc-lead compositions.

Q4: Can CW614N brass be welded?

A: CW614N has poor weldability due to its lead content and high zinc percentage. Brazing and soldering are preferred joining methods. For welded assemblies, consider lead-free brass alternatives.

Q5: What CNC tolerances can you achieve on CW614N parts?

A: Standard CNC turning: ±0.05mm. Precision turning: ±0.01mm. High-precision Swiss-type machining: ±0.005mm on diameter. Surface finish: Ra 0.8 to Ra 3.2 µm as standard; Ra 0.4 µm achievable.

Q6: Do you supply WRAS-approved CW617N fittings?

A: We supply CW617N fittings manufactured from WRAS-approved material. Customers requiring formal WRAS product approval (not just material approval) must arrange testing through a UK WRAS-approved testing laboratory. We provide full material documentation to support this process.

Q7: What surface finishes are available on CW614N / CW617N parts?

A: Bright machined (as-machined), nickel plating (electroless or electrolytic), tin plating, chrome plating, zinc plating, powder coating, and passivation treatments are all available from our in-house finishing facility.

Q8: What is dezincification and why does CW617N prevent it?

A: Dezincification is a corrosion process where zinc is selectively leached from brass, leaving a porous, weakened copper layer. CW617N contains 0.02–0.15% arsenic which inhibits this electrolytic process, making it safe for long-term use in water systems.

Q9: What is the lead time for CW614N / CW617N machined parts?

A: Standard catalogue items: 2–3 weeks. Custom machined parts from drawings: 4–6 weeks. For urgent requirements, express production is available. Sample approval within 10 days.

Q10: Do you provide material compliance certificates?

A: Yes. We provide EN 10204 Type 3.1 Material Test Certificates confirming chemical composition (Cu, Zn, Pb, As, Fe, Sn) and mechanical properties. All testing performed in NABL-accredited laboratories.

Q11: Can I get a sample of CW614N or CW617N parts before placing a bulk order?

A: Yes. We offer paid sample orders (typically 5–25 pieces) with full dimensional inspection reports and material certificates. Sample production time is 7–14 days. Sample cost may be adjusted against first bulk order.

Q12: Are CW614N brass parts suitable for ATEX / explosion-proof applications?

A: Yes. CW614N brass is non-sparking (non-ferrous) and is widely used in ATEX-certified cable glands and explosion-proof enclosures for use in Zone 1 and Zone 2 hazardous areas. Our cable gland components are designed to meet IEC 60079-0 and ATEX Directive 2014/34/EU.

Q13: What industries in the USA use CW614N / CW617N brass parts from Cable Glands India?

A: Electrical OEMs, industrial automation companies, plumbing product manufacturers, valve and fitting importers, HVAC equipment makers, and defense subcontractors across the USA. We work with distributors in Texas, California, Ohio, Illinois, and New York.

Request a quote for CW614N or CW617N Brass Machined Parts from Cable Glands India. Email sales@cableglandsindia.com with your drawings or specifications.

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