Seamless Copper Tubes Manufacturer

Vulroc seamless copper tubes are widely used in:

1. Air Conditioning

2. Refrigeration

3. Heat Exchangers

Why Choose Vulroc Seamless Copper Tubes?

Technical

Category	Item	Specification / Requirement / Value
Technical	Standard	JIS H3300
Technical	Material Grade	C1220 (Cu-DHP)
Chemical Composition	Cu + Ag	≥ 99.90%
Chemical Composition	P	0.015 – 0.040%
Mechanical Properties	Temper	Annealed O / H
	Tensile Strength	≥ 205 MPa
	Elongation	≥ 40% (50mm)
	Rockwell Hardness	HR15T ≤ 60
	Grain Size	0.025 – 0.060 mm

1. Pancake Copper Coil

JIS H3300 C1220 – O

OD (mm)	Inch	WT Options (mm)	Length	Packing
6.35	1/4	0.51–0.71	15 m	12 coils
9.52	3/8	0.51–0.81	15 m	9 coils
12.70	1/2	0.51–0.91	15 m	7 coils
15.88	5/8	0.56–0.91	15 m	5 coils
19.05	3/4	0.61–0.91	15 m	4 coils

2. Straight Copper Pipe

JIS H3300 C1220 – H

OD (mm)	Inch	WT (mm)	Length	Packing
9.52	3/8	0.71–0.91	5.8 m	25 pcs
12.70	1/2	0.71–0.91	5.8 m	25 pcs
15.88	5/8	0.71–0.91	5.8 m	25 pcs
19.05	3/4	0.71–0.91	5.8 m	20 pcs
22.22	7/8	0.71–0.91	5.8 m	20 pcs
28.58	1-1/8	0.71–1.22	5.8 m	12 pcs
34.93	1-3/8	0.71–1.22	5.8 m	7 pcs
41.28	1-5/8	0.71–0.91	5.8 m	7 pcs

Quality Item	Details
Non-Destructive Testing	All Vulroc seamless copper tubes are 100% eddy current tested according to: ASTM E243 JIS H0502
Defect Detection Sensitivity	Ø 4 – 10 mm: 0.9 mm Ø 10 – 20 mm: 1.0 mm Ø 20 – 30 mm: 1.1 mm
Microstructure Control	Grain size is tested according to JIS H0501.
Laboratory Testing	Vulroc seamless copper tubes are tested for: Chemical composition Mechanical properties Tensile strength Elongation Hardness Flareability Flattenability Non-destructive testing Hydrostatic testing
Safe Working Pressure	Safe working pressure is calculated for the temperature range: 40°C – 200°C Formula: P = 2St / D Where: P = Test hydrostatic pressure (MPa) S = Design stress value t = Minimum wall thickness (mm) D = Outer diameter (mm) Conversion: 1 bar = 0.1 MPa 1 MPa = 145 psi Design stress S = 41 N/mm²