OUR QUALITY

Zero-Defect Policy

Precision is not a metric.
It is our foundation.

Quality is not just a department at Premier Brass Industries; it is our core operating principle. From raw material sourcing to final dispatch, every component is rigorously tested to meet strict global OEM tolerances.

Spectrometer testing for precise material grade compliance Spectrometer testing for precise material grade compliance
01

Material Validation

Before machining begins, all brass rods and alloys undergo strict spectro-chemical analysis to ensure exact metallurgical composition and material integrity.

02

In-Process Inspection

Continuous dimensional checks are performed on our CNC floor using highly calibrated micrometers, gauges, and digital calipers to maintain micron-level accuracy.

03

Final Assurance

Prior to dispatch, components undergo a final rigorous sorting and visual inspection process. We ensure zero-compromise packaging for safe global transit.

ISO 9001:2015 Certified

Internationally recognized quality management systems. Click to view our certificate.

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ISO 9001
Advanced Laboratory

Precision Metrology & Inspection

We utilize a suite of world-class, highly calibrated measurement instruments to ensure every microscopic dimension strictly adheres to your engineering tolerances.

Quality assurance inspector measuring a custom machined brass component with a calibrated vernier caliper to verify strict dimensional tolerances.
Dimensional Inspection with Vernier Caliper
Quality control engineer using a calibrated micrometer to measure exact outer diameter and thread tolerances on a custom brass component.
Micrometer Precision Measurement CNC Parts
QA inspector using a precision height gauge on a calibrated surface plate to measure the vertical dimensions and step heights of a custom CNC machined component.
Digital Height Gauge Measurement
Quality assurance technician using an optical profile projector to analyze the complex geometry and thread accuracy of a custom brass component.
Profile Projector Optical Component Inspection
Advanced CNC tool presetter machine measuring cutting tool geometry and dimensions to ensure high-precision custom metal machining.
CNC Tool Presetter Calibration
uality assurance equipment using a profilometer surface roughness tester to measure the Ra surface finish of a custom CNC turned component.
Surface Roughness Tester Measurement
QA lab technician using a hardness tester machine to verify the material strength, durability, and load resistance of a custom manufactured brass component.
Metal Component Hardness Testing
Metallurgical Data Hub

Material & Alloy Specifications

Select a metal family and alloy grade below to inspect chemical composition limits and international standard cross-references.

Free Cutting Brass (CW614N)

Precision Turned Parts
Standards: EN: CW614N US: C36000 BS: CZ121 IS: 319 Gr. 1
Chemical Composition (%)
56.0 – 59.0%
2.5 – 3.5%
Max 0.35%
Max 0.70%
Remainder
100% (High-Speed Baseline)
360 – 500 N/mm²
Fasteners, Cable Glands, Terminals

Forging Brass (CW617N)

Hot Stamping & Pressing
Standards: EN: CW617N US: C37700 BS: CZ122 IS: 6912 FLB
Chemical Composition (%)
57.0 – 59.0%
1.6 – 2.5%
Max 0.30%
Max 0.05%
Remainder
90% (Zero-Porosity Pressing)
360 – 440 N/mm²
Valve Bodies, Manifolds, Heavy Couplings

DZR Brass (CW602N)

Acidic Water Resistant
Standards: EN: CW602N UNS: C35330 BS: CZ132 ISO: 6509
Chemical Composition (%)
61.0 – 63.0%
1.7 – 2.8%
0.02 – 0.15%
Max 0.10%
Remainder
ISO 6509 Resistant
330 – 450 N/mm²
Underground Valves, PEX Unions, Water Meters

Lead-Free Eco Brass (CW724R)

NSF 61 & RoHS 3 Compliant
Standards: EN: CW724R US: C69300 Directive: RoHS 3
Chemical Composition (%)
75.0 – 77.0%
2.7 – 3.4%
Max 0.09%
0.04 – 0.12%
Remainder
< 0.09% (Safe Drinking Water)
500 – 650 N/mm²
Potable Water Systems, Medical, EU Exports

Naval Brass (C46400)

Marine Saltwater Grade
Standards: EN: CW713R US: C46400 BS: CZ112 IS: 291
Chemical Composition (%)
59.0 – 62.0%
0.5 – 1.0%
Max 0.20%
Max 0.10%
Remainder
Saltwater & Bio-fouling Proof
440 – 540 N/mm²
Propeller Shafts, Marine Hardware, Rig Fasteners
✓ 100% Spectrometer Melt Verification
✓ Mill Test Certificate (EN 10204 3.1) Included
✓ RoHS 3 & REACH SVHC Compliant

Complete Traceability & Documentation

We understand that global OEM compliance requires absolute transparency. Upon customer request, we provide comprehensive testing and compliance documentation with every shipment—ensuring 100% traceability from raw material to finished component.

✓ Material Composition Certificate
✓ Material Hardness Certificate
✓ Plating Thickness Certificate
✓ Plating Test Certificate
✓ Final Quality Inspection Report