Inside Diameter: 16, 20, 27, 30, 32, 47 mm Wall Thickness: 1; 1,5; 2,5 mm Notes: Steel grades: 10, 20, 17MnSi. Fixed length: 5000 ± 50 mm. Pipes of others dimensions, length and steel grades are produced subject to agreement. High precision and quality of internal surface allows use of these tubes without additional treatment.

Sizes
Steel Grade	Dimensions, mm			Tolerances, mm
	Outside Diameter	Inside Diameter	Wall Thickness	Outside Diameter	Inside Diameter	Wall Thickness
10		16	1,5		± 0,050	± 0,15
		20	1		+ 0,050; - 0,0	± 0,075
10; 20		27	1,5		± 0,025	± 0,1
		30	1,5		± 0,026	± 0,1
		32	1,5		+ 0,035; -0,02	± 0,15
17MnSi		47	2,5		± 0,15	± 0,15
	52	47		± 0,15	± 0,15

Mechanical properties
Steel Grade	Dimensions, mm			Tensile Strength, N/mm2 (min)	Yield Strength, N/mm2 (min)	Elong., % (min)	Roughness, mm (max)
	OD.	In.D	WT
normalized
10		16	1,5	343	206	24	0,63
		20	1,0	343	206	24	0,40
17MnSi		47	2,5	509 - 608	353	17	1,25
	52	47		509 - 608	353	17	1,25
without heat treatment
10		30	1,5	490	392	5	0,63
		32	1,5	539 - 686	392	5	0,63
20		27	1,5	490	392	5	0,63
		32	1,5	687	392	5	0,63

Chemical Composition (%, max)
Steel Grade	C	Si	Mn	Cr	Ni	S	P	Cu	N
10	0,07-0,14	0,17-0,37	0,35-0,65	0,15	0,3	-	-	-	-
20	0,17-0,24	0,17-0,37	0,35-0,65	0,25	0,25	0,03	0,025	0,30	0,008
17MnSi	0,20	0,55	1,6	0,3	-	0,035	0,035	-	-

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