Copper Coils

Copper Coiled Tube

O.D. (inches)	Wall (inches)	Gauge (SWG)	MOP in annealed condition up to 100°C (bar)
1/4	0.028	22	101
5/16	0.028	22	79
5/16	0.036	20	104
3/8	0.032	21	75
1/2	0.032	21	55
5/8	0.036	20	49
3/4	0.040	19	45
7/8	0.040	19	38

Made to EN12735-1
Size range 1/4″ to 7/8″
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 1/4″ to 7/8″ (6.35mm to 104.775mm).

Applications

Air Conditioning Systems
Refrigeration Pipework
HVAC/R Installations

Market Sectors

Domestic
Commercial

Product Specifications

Property	Specification
Outside Diameter Range	1/4″ – 7/8″ (6.35mm – 22.2mm)
Wall Thickness Range	0.028″ – 0.104″ (0.71mm – 2.64mm)
Material	CW024A Copper
Material Conditions	R220 (Soft)
Product Marking	Durable Inkjet Marking to EN 12735-1
Delivery Condition	Nitrogen Purged and Capped
Standard	EN 12735-1

Coil Supply	Boxed Pancake Coils or Spools
Inner Surface Quality	Clean and Smooth, Carbon Content ≤ 0.38 mg/dm²
Warranty	75 Years**

** Subject to standard Terms & Conditions.

Material Mechanical Properties

Material Designation	Minimum Tensile Strength (MPa)	Minimum Elongation (%)	Hardness HV5
R220 (Soft, Annealed)	220	40	40 – 70

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 – Coiled Tube (EN 12735-1, R220)

OD (Inches)	Wall (Inches)	Gauge (SWG)	Maximum Operating Pressure up to 100°C (bar)
1/4″	0.028	22	101
5/16″	0.028	22	79
5/16″	0.036	20	104
3/8″	0.032	21	75
1/2″	0.032	21	55
5/8″	0.036	20	49
3/4″	0.040	19	45
7/8″	0.040	19	38

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.

How to Braze Copper Fittings Instructions

Manuals

How To Braze Lawton ACR Tube And Fittings DOWNLOAD How To Bend Lawton ACR Copper Tube DOWNLOAD

Datasheets

Refrigeration Tube Datasheet DOWNLOAD

Enquire Online

O.D. (inches)	Wall (inches)	Gauge (SWG)	MOP in annealed condition up to 100°C (bar)
1/4	0.028	22	101
5/16	0.028	22	79
5/16	0.036	20	104
3/8	0.032	21	75
1/2	0.032	21	55
5/8	0.036	20	49
3/4	0.040	19	45
7/8	0.040	19	38

Copper Coils

Copper Coiled Tube