C38000 Low Leaded Brass is an environmentally friendly brass alloy with reduced lead content, offering a balance of excellent machinability, mechanical properties, and corrosion resistance suitable for various industrial applications where lead-free materials are preferred.
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When production lines demand speed and RoHS regulations tighten, C38000 Low Leaded Brass delivers. This 'free-machining' alloy (<0.25% Pb) cuts 30% faster than lead-free alternatives while sailing through EU directives. From precision gears to compliant plumbing – it’s the goldilocks brass: just enough lead for smooth chips, low enough for global approvals.
TECH SPECS: ENGINEERED FOR SPEED & COMPLIANCE
(Compliant with ASTM B36 / UNS C38000 / RoHS Annex III Exemption 6c)
| Property | C38000 Brass | C36000 (High Pb) | C27450 (Pb-Free) |
|---|---|---|---|
| Composition | 57% Cu, 38% Zn, 0.25% Pb max | 62% Cu, 35% Zn, 3% Pb | 61% Cu, 38% Zn, 0.09% Si |
| Tensile Strength | 365 MPa | 310 MPa | 400 MPa |
| Machinability | 5 star (85% vs. C36000) | 100% | 60% |
| Lead Content | <0.25% (RoHS compliant) | 3% (Restricted) | 0% |
| Conductivity (IACS) | 26% | 24% | 28% |
| Chip Formation | Short, breakable | Long, stringy | Brittle |
Certifications: RoHS 3 Annex III Exempt, REACH, ASTM B36. EN 12165
5 REASONS FACTORIES SWITCH TO C38000
Hyper-Machinability
“Rips through CNC lathes at 250+ SFM – cuts cycle times by 30% vs. lead-free brass.”
Global Compliance
“0.25% Pb keeps you safe under RoHS/REACH while outlasting silicon brasses 2:1 in valve seats.”
Dimensional Stability
“Holds ±0.01mm tolerances during high-speed drilling – critical for medical connector pins.”
Cost-Smart Performance
“15% cheaper than specialty lead-free alloys with 90% of C36000’s chip control.”
Corrosion Resistance
“Survives 500hr salt spray tests (ASTM B117) – ideal for coastal electrical components.”
HOW WE ENGINEER PRECISION
1 Controlled Alloying
"57/40 Cu-Zn base with Pb strictly capped at 0.25% – vacuum-melted for uniform dispersion."
2 Hot Extrusion
"Pressed at 650°C into rods/bars with ±0.05mm straightness – ready for Swiss-type lathes."
3 Cold Drawing
"Precision-scaled to H02 (half-hard) or H04 (spring) tempers for no-mill finishes."
4 RoHS Verification
"Every batch XRF-tested with downloadable compliance certs."
WHERE IT POWERS INDUSTRY
| Industry | Critical Applications | Why C38000? |
|---|---|---|
| Plumbing | Valve bodies, compression fittings | Meets NSF/ANSI 61 for potable water |
| Electronics | Connectors, fuse clips, relay parts | 26% conductivity + EMI shielding |
| Automotive | Fuel injector components, gears | Withstands ethanol-blended fuels |
| Industrial | Pump impellers, hydraulic manifolds | 85% machinability rating reduces tool wear |
| Consumer Goods | Locks, zippers, decorative hardware | Polishes to mirror finish (Ra 0.1μm) |
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