| Common Standards & Designations | ||
| Standard | Title / Scope | Applicable Alloys / Grades |
| ASTM B75/B75M | Standard Specification for Seamless Copper Tube (applicable to bronze alloys) | Multiple bronze alloys |
| ASTM B150/B150M | Standard Specification for Aluminum Bronze Rod, Bar, and Shapes (applicable to tube) | C61300, C61400, C61500, C61600, C61700, C63000, C63200 |
| ASTM B98/B98M | Standard Specification for Copper-Silicon Alloy Rod, Bar, and Shapes | C65100, C65500, C66100 (Silicon Bronze) |
| ASTM B505 | Standard Specification for Copper-Base Alloy Continuous Castings | C93200 (Grade 932), C90300, C90500, C90700, C91100, C91300, C95400 |
| ASTM B584/B584M | Standard Specification for Copper Alloy Sand Castings for General Applications | C83600, C84400, C84800, C90300, C90500 |
| EN 12449 | Copper and copper alloys – Seamless round tubes for general purposes | CW451K, CW452K, CW453K, CW454K (Phosphor Bronze equivalents) |
| EN 1982 | Copper and copper alloys – Ingots and castings | LG2, various bronze grades |
| JIS H330 | Copper and copper alloy seamless tubes | C2200, C2600, C2800, various bronze grades |
| JIS H5111 | Bronze castings | BC6, various bronze grades |
| GB/T 1527 | Seamless copper and copper alloy tubes | Multiple bronze grades |
| Temper (Hardness) Designations | ||
| Temper Code | Description | Characteristics |
| O61 (Annealed) | Soft, fully annealed | Maximum ductility, for deep drawing |
| H00 (As-Drawn) | As cold drawn | Light strengthening |
| H02 (Half Hard) | Moderately cold drawn | Good balance of strength and formability |
| H04 (Full Hard) | Heavily cold drawn | High strength, moderate ductility |
| HR50 (Stress-Relieved) | Stress relieved after cold work | Reduced residual stresses |
| M20 (As-Extruded) | Hot extruded finish | As-fabricated condition |
| TQ30/TQ50/TQ55 | Quenched hardened | Heat treated condition |
| Dimensional Specifications | ||
| Parameter | Range | Notes |
| Outside Diameter | 2 mm – 914 mm (0.079 – 36 in) | Seamless and welded options available |
| Wall Thickness | 0.2 mm – 120 mm (0.008 – 4.72 in) | Varies by manufacturing method |
| Length | 1 m – 12 m (3.3 – 40 ft) standard; Custom lengths and coils available | For OD ≤30 mm, wall <3 mm: coils ≥6000 mm available |
| Diameter Tolerance | ±0.05 mm to ±0.50 mm | Depends on diameter and standard |
| Wall Thickness Tolerance | ±0.05 mm to ±0.15 mm | Depends on specification |
| Straightness | 0.8 mm per 1000 mm (0.008 in per 10 in) maximum | / |
| Heat Exchanger Tube Dimensions | ||
| Parameter | Standard Range | Optimized Range |
| Wall Thickness | 0.9 – 1.2 mm | 0.7 – 1.0 mm |
| Inner Surface Finish | Ra 1.6 – 3.2 | Ra 0.8 – 1.6 |
| Tube Pitch | 1.25 – 1.5 × OD | 1.15 – 1.25 × OD |
There are no reviews yet.