| Material Properties |
Grade/Composition |
H62 (60.5-63.5% Cu, balance Zn) |
H65 (63.0-68.5% Cu, balance Zn) |
Cu ≥ 99.9% |
| |
Key Characteristics |
Good strength, plasticity, cost-effective |
Excellent plasticity, best formability among brasses |
Highest electrical/thermal conductivity, soft, excellent corrosion resistance |
| |
Density |
8.43-8.47 g/cm³ |
8.47 g/cm³ |
8.96 g/cm³ |
| |
Melting Point |
905-930°C |
966-1001°C |
1084.62°C |
| Mechanical Properties |
Tensile Strength |
330-600 MPa (varies with condition) |
290-570 MPa (varies with condition) |
220-300 MPa (annealed, varies with temper) |
| |
Yield Strength |
~150-200 MPa |
150-200 MPa |
70-150 MPa (varies with temper) |
| |
Elongation |
10-45% (varies with condition) |
3-45% (up to 45% in soft state) |
10-45% (varies with temper) |
| |
Hardness |
80-110 HB |
55-190 HV |
40-90 HB (varies with temper) |
| Physical Properties |
Electrical Conductivity |
~22% IACS |
~32% IACS (M) |
~100% IACS |
| |
Thermal Conductivity |
115-120 W/(m·K) |
140-142 W/(m·K) |
401 W/(m·K) |
| |
Thermal Expansion |
20.6×10⁻⁶/℃ (20-300℃) |
19.1×10⁻⁶/℃ (20-300℃) |
16.5 µm·m⁻¹·K⁻¹ (25°C) |
| CNC Milling Capabilities |
Process |
3-Axis, 4-Axis, 5-Axis Simultaneous CNC Milling |
3-Axis, 4-Axis, 5-Axis Simultaneous CNC Milling |
3-Axis, 4-Axis, 5-Axis Simultaneous CNC Milling |
| |
Machinability |
Excellent (lead content improves machinability) |
Excellent |
Good (requires sharp tools due to softness/gumminess) |
| |
Cutting Speed (Vc) |
60-120 m/min typical |
60-120 m/min typical |
50-100 m/min typical (requires sharp tools) |
| |
Feed Rate |
0.1-0.25 mm/rev typical |
0.1-0.25 mm/rev typical |
0.1-0.2 mm/rev typical |
| |
Depth of Cut |
0.15-0.25 mm typical |
0.15-0.25 mm typical |
0.1-0.2 mm typical |
| |
Positioning Accuracy |
±0.005 mm |
±0.005 mm |
±0.005 mm |
| Precision & Tolerances |
Standard Tolerance |
±0.0125 mm (±0.0005") |
±0.0125 mm (±0.0005") |
±0.0125 mm (±0.0005") |
| |
Precision Tolerance |
±0.005 mm (±0.0002") |
±0.005 mm (±0.0002") |
±0.005 mm (±0.0002") |
| |
Hole Tolerance |
H7 (drilled) to H6 (reamed) |
H7 (drilled) to H6 (reamed) |
H7 (drilled) to H6 (reamed) |
| |
Geometric Tolerances |
Per ASME Y14.5 / ISO 1101 |
Per ASME Y14.5 / ISO 1101 |
Per ASME Y14.5 / ISO 1101 |
| Threading Capabilities |
Thread Types |
Metric (M1.6-M30), UNF/UNC, NPT, BSPP |
Metric (M1.6-M30), UNF/UNC, NPT, BSPP |
Metric (M1.6-M30), UNF/UNC, NPT, BSPP |
| |
Thread Milling |
Preferred for precision |
Preferred for precision |
Recommended (avoids tearing) |
| Surface Treatments |
Standard Finishes |
As-machined, polished, bead blasted |
As-machined, polished, bead blasted |
As-machined, polished, bead blasted |
| |
Plating Options |
Nickel, Chrome, Gold, Silver |
Nickel, Chrome, Gold, Silver |
Nickel, Gold, Silver, Tin |
| |
Coatings |
Clear coating for outdoor protection |
Clear coating for outdoor protection |
Anti-tarnish coating, lacquer |
| Dimensional Capacity |
Maximum Part Size |
Up to 1500 x 800 x 600 mm |
Up to 1500 x 800 x 600 mm |
Up to 1500 x 800 x 600 mm |
| |
Maximum Part Weight |
Up to 300 kg |
Up to 300 kg |
Up to 300 kg |
| Quality Assurance |
Inspection Equipment |
CMM, Optical Comparator, Surface Roughness Tester, Thread Gauges |
CMM, Optical Comparator, Surface Roughness Tester, Thread Gauges |
CMM, Optical Comparator, Surface Roughness Tester, Thread Gauges |
| |
Material Certification |
Mill Test Certificate (MTC) per EN 10204 3.1 provided |
Mill Test Certificate (MTC) per EN 10204 3.1 provided |
Mill Test Certificate (MTC) per EN 10204 3.1 provided |
| |
Documentation |
FAI Report, Dimensional Report, CoC |
FAI Report, Dimensional Report, CoC |
FAI Report, Dimensional Report, CoC |
| |
Quality Standards |
ISO 9001, ISO 13485 (medical) compliant processes available |
ISO 9001, ISO 13485 (medical) compliant processes available |
ISO 9001, ISO 13485 (medical) compliant processes available |
| Production Details |
Lead Time (Prototype) |
3-10 business days |
3-10 business days |
3-10 business days |
| |
Lead Time (Production) |
2-5 weeks (volume dependent) |
2-5 weeks (volume dependent) |
2-5 weeks (volume dependent) |
| |
File Formats Accepted |
STEP, IGES, SLDPRT, X_T, DWG, DXF, PDF |
STEP, IGES, SLDPRT, X_T, DWG, DXF, PDF |
STEP, IGES, SLDPRT, X_T, DWG, DXF, PDF |
