Copper Straight Lengths
Copper Tube
| O.D. (inches) | Wall (inches) | Gauge (SWG) | MWP in annealed condition at 100deg C | MWP in supplied* condition at 100deg C |
|---|---|---|---|---|
| 3/8” | 0.032 | 21 | 93 | 108 |
| 1/2” | 0.036 | 20 | 78 | 91 |
| 1/2” | 0.048 | 18 | 102 | 118 |
| 5/8” | 0.036 | 20 | 62 | 73 |
| 5/8” | 0.040 | 19 | 67 | 79 |
| 5/8” | 0.048 | 18 | 81 | 95 |
| 3/4” | 0.036 | 20 | 51 | 61 |
| 3/4” | 0.040 | 19 | 57 | 73 |
| 3/4” | 0.048 | 18 | 65 | 77 |
| 3/4” | 0.064 | 16 | 88 | 102 |
| 7/8” | 0.040 | 19 | 46 | 55 |
| 7/8” | 0.048 | 18 | 55 | 66 |
| 7/8” | 0.064 | 16 | 75 | 88 |
| 7/8” | 0.104 | 12 | 125 | 142 |
| 1.1/8” | 0.048 | 18 | 43 | 51 |
| 1.1/8” | 0.064 | 16 | 57 | 68 |
| 1.1/8” | 0.080 | 14 | 72 | 85 |
| 1.3/8” | 0.048 | 18 | 35 | 41 |
| 1.3/8” | 0.064 | 16 | 47 | 55 |
| 1.3/8” | 0.080 | 14 | 59 | 69 |
| 1.3/8” | 0.104 | 12 | 77 | 90 |
| 1.5/8” | 0.048 | 18 | 29 | 35 |
| 1.5/8” | 0.064 | 16 | 39 | 47 |
| 1.5/8” | 0.080 | 14 | 49 | 58 |
| 1.5/8” | 0.104 | 12 | 65 | 76 |
| 1.5/8” | 0.116 | 11 | 73 | 85 |
| 2.1/8” | 0.048 | 18 | 22 | 27 |
| 2.1/8” | 0.064 | 16 | 30 | 35 |
| 2.1/8” | 0.080 | 14 | 37 | 44 |
| 2.1/8” | 0.104 | 12 | 49 | 58 |
| 2.5/8” | 0.048 | 18 | 18 | 25 |
| 2.5/8” | 0.064 | 16 | 24 | 33 |
| 2.5/8” | 0.080 | 14 | 30 | 41 |
| 2.5/8” | 0.104 | 12 | 39 | 54 |
| 3.1/8” | 0.064 | 16 | 20 | 28 |
| 3.1/8” | 0.080 | 14 | 25 | 35 |
| 3.1/8” | 0.104 | 12 | 33 | 45 |
| 3.5/8” | 0.064 | 16 | 17 | 24 |
| 3.5/8” | 0.080 | 14 | 22 | 30 |
| 4.1/8” | 0.064 | 16 | 15 | 21 |
| 4.1/8” | 0.080 | 14 | 19 | 26 |
| 4.1/8” | 0.104 | 12 | 25 | 34 |
- Made to EN12735-1
- Size range 3/8″ to 4 1/8″
- Inkjet marked
- Nitrogen purged and capped to reduce contamination
Material Analysis:
- Material grade phosphorus de-oxidised copper; Cu-DHP or CW024A as defined in BS EN 1976
- Minimum copper content 99.90% (including silver)
- Phosphorus 0.015-0.040%
- Total impurity maxima 0.060% (excluding phosphorus and silver)
- The melting point of copper is 1083⁰ and it has a density of 8.9 gm/cc
Technical Data
Product Overview
Lawton Refrigeration Copper Tube is manufactured to EN 12735-1 for air conditioning and refrigeration applications. Available in both straight lengths and coils, the range is nitrogen purged, capped and supplied clean for refrigeration service. Sizes range from 3/8″ to 4.1/8″ (9.53mm to 104.775mm).
Applications
- Air Conditioning Systems
- Refrigeration Pipework
- HVAC/R Installations
Market Sectors
- Domestic
- Commercial
Product Specifications
| Property | Specification |
|---|---|
| Outside Diameter Range | 3/8″ – 4.1/8″ (9.53mm – 104.775mm) |
| Wall Thickness Range | 0.028″ – 0.104″ (0.71mm – 2.64mm) |
| Material | CW024A Copper |
| Material Conditions | R250 (Half Hard), R290 (Hard) |
| Product Marking | Durable Inkjet Marking to EN 12735-1 |
| Delivery Condition | Nitrogen Purged and Capped |
| Standard | EN 12735-1 |
| Straight Length Supply | Wooden Cases and Bundles |
| Inner Surface Quality | Clean and Smooth, Carbon Content ≤ 0.38 mg/dm² |
| Guarantee | 75 Years** |
* Straight lengths only.
** Subject to standard Terms & Conditions.
Material Mechanical Properties
| Material Designation | Minimum Tensile Strength (MPa) | Minimum Elongation (%) | Hardness HV5 |
|---|---|---|---|
| R250 (Half Hard) | 250 | 30 | 75 – 100 |
| R290 (Hard) | 290 | 3 | >100 |
Material Composition & Properties
| Property | Value |
|---|---|
| Copper Content Including Silver | 99.90% |
| Phosphorus | 0.015 – 0.040% |
| Total Impurities (Excluding Phosphorus and Silver) | 0.060% |
| Melting Point | 1083°C |
| Density | 8.96 g/cm³ |
Maximum Operating Pressure – Straight Lengths (EN 12735-1)
| OD (Inches) | Wall (Inches) | Gauge (SWG) | R220 Annealed (bar) | R250 Supplied (bar) | R290 Supplied (bar) |
|---|---|---|---|---|---|
| 3/8″ | 0.032 | 21 | 75 | 99 | 119 |
| 3/8″ | 0.036 | 20 | 85 | 113 | 136 |
| 3/8″ | 0.048 | 18 | 117 | 156 | 188 |
| 1/2″ | 0.036 | 20 | 62 | 82 | 99 |
| 1/2″ | 0.040 | 19 | 70 | 92 | 111 |
| 1/2″ | 0.048 | 18 | 85 | 113 | 136 |
| 5/8″ | 0.036 | 20 | 49 | 65 | 78 |
| 5/8″ | 0.040 | 19 | 55 | 72 | 88 |
| 5/8″ | 0.048 | 18 | 67 | 88 | 106 |
| 5/8″ | 0.064 | 16 | 91 | 121 | 146 |
| 3/4″ | 0.040 | 19 | 45 | 60 | 72 |
| 3/4″ | 0.048 | 18 | 55 | 72 | 88 |
| 3/4″ | 0.064 | 16 | 75 | 99 | 119 |
| 3/4″ | 0.104 | 12 | 129 | 171 | 206 |
| 7/8″ | 0.048 | 18 | 46 | 62 | 74 |
| 7/8″ | 0.064 | 16 | 63 | 84 | 101 |
| 7/8″ | 0.080 | 14 | 81 | 107 | 129 |
| 1.1/8″ | 0.048 | 18 | 36 | 47 | 57 |
| 1.1/8″ | 0.064 | 16 | 48 | 64 | 77 |
| 1.1/8″ | 0.080 | 14 | 61 | 81 | 98 |
| 1.1/8″ | 0.104 | 12 | 81 | 108 | 130 |
| 1.5/8″ | 0.048 | 18 | 24 | 32 | 39 |
| 1.5/8″ | 0.064 | 16 | 33 | 43 | 52 |
| 1.5/8″ | 0.080 | 14 | 41 | 55 | 66 |
| 1.5/8″ | 0.104 | 12 | 55 | 72 | 88 |
| 1.5/8″ | 0.116 | 11 | 61 | 81 | 98 |
| 2.1/8″ | 0.048 | 18 | 18 | 24 | 30 |
| 2.1/8″ | 0.064 | 16 | 25 | 33 | 40 |
| 2.1/8″ | 0.080 | 14 | 31 | 41 | 50 |
| 2.1/8″ | 0.104 | 12 | 41 | 55 | 66 |
| 2.5/8″ | 0.048 | 18 | 15 | 20 | 24 |
| 2.5/8″ | 0.064 | 16 | 20 | 26 | 32 |
| 2.5/8″ | 0.080 | 14 | 25 | 33 | 40 |
| 2.5/8″ | 0.104 | 12 | 33 | 44 | 53 |
| 3.1/8″ | 0.064 | 16 | 17 | 22 | 27 |
| 3.1/8″ | 0.080 | 14 | 21 | 28 | 34 |
| 3.1/8″ | 0.104 | 12 | 28 | 36 | 44 |
| 3.5/8″ | 0.064 | 16 | 14 | 19 | 23 |
| 3.5/8″ | 0.080 | 14 | 18 | 24 | 29 |
| 4.1/8″ | 0.064 | 16 | 13 | 17 | 20 |
| 4.1/8″ | 0.080 | 14 | 16 | 21 | 25 |
| 4.1/8″ | 0.104 | 12 | 21 | 27 | 33 |
Installation Notes
- Tube supplied clean, capped and nitrogen purged for refrigeration service.
- Carbon content controlled to ≤ 0.38 mg/dm² for refrigeration applications.
- Areas adjacent to brazed joints should be considered annealed (R220) when calculating maximum operating pressures.
- Maximum operating pressures are based on EN 12735-1 tube characteristics.
