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The bronze alloy is made by pure copper(red copper) after adding tin or plumbum alloys. Compared with pure copper (red copper), bronze has high strength and low melting point (25% tin bronze's melting point is 800℃).The melting point of pure copper (red copper) is 1083℃.Bronze has good performance in casting, abrasion resistance and stability of chemical properties. Beryllium bronze, aluminum bronze, tin bronze and CuNi2Si bronze are popular alloy types of bronze.
| General Specifications & Dimensions | ||
| Parameter | Specification / Range | Notes |
| Common Alloy Types | Phosphor Bronze, Aluminum Bronze, Silicon Bronze, Leaded Tin Bronze, Manganese Bronze | Different alloys provide distinct mechanical properties for bearing, structural, and corrosion-resistant applications. |
| Common UNS Grades | C51000, C52100, C54400, C61300, C63000, C65100, C65500, C86300, C93200 (SAE 660), C95400 | Grade selection depends on required strength, wear resistance, and machinability. |
| Shape Types | Round, Square, Hexagonal, Rectangular (Flat Bar) | Various cross-sections available for different machining and fabrication needs. |
| Diameter (Round Bar) | 0.2 in – 6 in (5 mm – 150 mm) | Diameter range varies significantly depending on alloy and manufacturing process. |
| Width (Rectangular Bar) | 0.2 in – 6 in (5 mm – 150 mm) | / |
| Thickness (Rectangular Bar) | 0.125 in – 3.15 in (3 mm – 80 mm) | / |
| Length | 6 ft – 20 ft (2000 mm – 6000 mm) standard; custom lengths available | Longer or shorter lengths available upon request. |
| Diameter Tolerance | Ground: ±0.001 in (±0.025 mm); Drawn: ±0.002 in (±0.05 mm); Extruded: ±0.010 in (±0.25 mm) | Tolerances vary by finishing process and applicable standard. |
| Length Tolerance | <100 mm: ±1 mm; ≥100 mm: +5 / -1% | Per typical supplier tolerances for precision rods. |
| Applicable Standards | ASTM B505, ASTM B139, ASTM B150, ASTM B98, SAE 841, SAE 660, ISO 9001 | Standards govern chemical composition, mechanical properties, and dimensions. |
| Manufacturing Process | Continuous Cast, Centrifugal Cast, Extruded, Drawn | Continuous casting provides uniform grain structure; drawn bars offer tighter tolerances. |
| Surface Finish | Mill Finish, Drawn (Bright), Turned, Ground, Polished, Pickled | Finish depends on alloy and application requirements. |
| Dimensional Tolerances | ||
| Parameter | Tolerance Specification | Notes |
| Diameter Tolerance (Drawn) | ±0.05 mm (±0.002 in) | Tight tolerances for precision applications. |
| Diameter Tolerance (Ground) | ±0.025 mm (±0.001 in) | Highest precision finish. |
| Diameter Tolerance (Extruded) | ±0.25 mm (±0.010 in) | Standard mill finish tolerances. |
| Diameter Tolerance (≤10 mm) | ±10% | Per typical supplier specifications. |
| Diameter Tolerance (>10 mm) | ±5% | Per typical supplier specifications. |
| Length Tolerance (<100 mm) | ±1 mm | For precision-cut lengths. |
| Length Tolerance (≥100 mm) | +5 / -1% | For longer length bars. |
| Mechanical Properties (By Alloy & Temper) | ||||
| UNS Number / Grade | Temper / Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
| C93200 (SAE 660) | Continuous Cast | 240 min (35,000 psi) | 138 min (20,000 psi) | 10 min |
| C95400 | As Cast | ≥ 500 | ≥ 260 | ≥ 10 |
| C95400 | TQ50 Temper | 620 | 310 | 8 |
| C63000 | As-Manufactured | 655 – 862 | 290 – 552 | 13 – 20 |
| CuSn5 (C51000) | As Rolled | 320 – 740 | / | 60 max |
| C86300 | Cast | ≥ 750 | ≥ 450 | ≥ 12 |
| CuAl10Ni5Fe5 | Cast | ≥ 500 | ≥ 260 | ≥ 10 |
| Oilite (SAE 841) | Sintered | / | 76 MPa (11,000 psi) | / |