Pancake Coils
Copper Tubes Engineering
Alloy Grades
- CW024A (C106) – Cu-DHP, Deoxidized High Phosphorus
- CW352H (CN102) – CuNi10Mn1Fe (Copper Nickel)
Dimensional Capabilities
- OD: 3mm – 22.22mm
- Gauge: 5mm – 1.6mm
- Coil Lengths: 1,000mm – 30,000mm
Mechanical Property Variants
- Annealed
Bespoke Services
- Inkjet Marked
- Individually Bagged
- Customer specific marking
Made to order so contact our Sales department with FULL enquiry. Average manufacturing time is 4 weeks.
We manufacture/distribute to the following European Specifications (American ASTM can also be offered):
BS EN 12449:1999 BS EN 12541:1999 BS EN 13600:2002
BS EN 12449 Seamless, round tubes for general purposes.
Material Analysis (C106)
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)
Mechanical Properties
BS EN 12449 Seamless, round tubes for general purposes
| Material Temper | Tensile Strength min. (N/mm2) | Elongation min.(%) | Hardness (Indicative) HV5 VPN |
| R200 (soft) | 200 | 40 | 40-65 |
| R250 (Half Hard) | 250 | 20 | 70-100 |
| R290 (Hard) | 290 | 5 | 95-120 |
BS EN 12451 Seamless, round tubes for heat exchangers
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)
Mechanical Properties
BS EN 12451 Seamless, round tubes for heat exchangers
| Material Temper | Tensile Strength min. (N/mm2) | Elongation min. (%) | Hardness (Indicative) HV5 VPN |
| R250 (Half Hard) | 250 | 20 | 75-100 |
| R290 (Hard) | 290 | 5 | Over 100 |
BS EN 13600 Seamless, round tubes for electrical purposes
Material Analysis (HC C101)
Material Grade Phosphorus de-oxidised copper; Cu-ETP or CW004A as defined in BS EN 1976.
Minimum Copper Content min 99.90 % (including silver)
Max Oxygen – 0.060 % is permitted, subject to agreement between the purchaser and Lawton Tubes
Max Lead – 0.005 %
Total Impurity Maxima 0.030 % (excluding oxygen, lead and silver)
Material Analysis (HC C103)
Material Grade Phosphorus de-oxidised copper; Cu-OF or CW008A as defined in BS EN 1976.
Minimum Copper Content min 99.95 % (including silver)
Max Lead – 0.005 %
Total Impurity Maxima 0.030 % (excluding lead and silver)
Mechanical Properties
BS EN 13600 Seamless, round tubes for electrical purposes
| Material Temper | Tensile Strength min. (N/mm2) | Elongation min. (%) | Hardness (Indicative) HV5 VPN |
| R200 (soft) | 200 | 40 | 35-65 |
| R250 (Half Hard) | 250 | 15 | 65-95 |
| R290 (Hard) | 290 | 5 | 90-110 |
