Outside Diameter : 4,00; 4,76; 6,35; 8,00 mm Wall Thickness: 0,7 mm. Notes: Steel grade: 08Al. The tubes are delivered zinc-coated or "black" in coils. The tubes of other dimensions can be produced by agreement: OD: 4.0 - 8.0 mm with WT: 0.6 - 0.7 mm (excepting size 8.0 x 0.6 mm). Leak-proofness of tubes is checked by pneumatic pressure of 50 bars (dry air or nitrogen). High cleanness of internal surface (washed residue is not more than 0.1 g/m2) allows use of these tubes in refrigerators with ozone freandly coolants.

Sizes
Sizes, mm		Tolerances, mm		Mass of 1 m, kg
Outside Diameter	Wall Thickness	OD	WT
4,00	0,7	± 0,08	- 0,10	0,057
4,76				0,070
6,35		+ 0,08; - 0,10		0,098
8,00		± 0,08		0,126

Mechanical properties
Steel Grade	Tensile Strength, N/mm2 (min)	Yield Strength, N/mm2 (min)	Elongation, % (min)
08Al	400	300	25

Chemical Composition (%, max)
Steel Grade	C	Si	Mn	S	P	Al
08Al	0,07	0,03	0,35	0,025	0,020	0,02 - 0,07

BACK