Side (A): 10 - 120 mm Wall Thickness (WT): 1 - 9 mm Tolerances: On the side: A 10 - 30 mm: ± 0,3 mm A 35 - 50 mm: ± 0,4 mm A 60 - 120 mm: ± 0,8 % On the WT: electro-welded pipes: ± 10%, Cold-formed pipes: ± 12,5 % Notes: Cold-formed pipes are produced from steel grades: 10, 20, 35, 45. Electric-welded pipes are produced from steel grades: 08kp, 10, 10ps, 20, St2sp, St2kp, St2ps, St4sp, St4ps, St4kp. Random length - 1,5 - 9 m, fixed length - 5 - 9 m. Technical requirement according to GOST 13663-86. Seamless cold-formed pipes are produced heat-treated. Straightening and cropping of ends of pipes are subject to agreement. Electric-welded pipes are produced without heat treatment, with raw end face. Non-destructive test of quality of welded seam is carried out before profiling of electric-welded pipes.

Sizes
Side A, mm	Wall Thickness, mm
	1	1,5	2	2,5	3	3,5	4	5	6	7	8	9
10
15
20
25
30
35
40
42
45
50
60
70
80
90
100
110
120

Colors in table:
	Electro-welded pipes
	Electro-welded and cold-formed
	Cold-formed

Mechanical properties
Steel Grade	Tensile Strength, N/mm2 (min)	Yield Strength, N/mm2 (min)	Elongation, % (min)
10	343	206	24
20	412	245	20
35	510	294	18
45	549	323	14

Chemical Composition (%, max)
Steel Grade	C	Si	Mn	Cr	Ni	Mo	S	P	Cu	N
08kp	0,05-0,12	0,03	0,25-0,50	0,10	-	0,04	0,035	-	-	0,006
10	0,07-0,14	0,17-0,37	0,35-0,65	0,15	0,3	-	-	-	-	-
10ps	0,07-0,14	0,05-0,17	0,35-0,65	0,15	0,3	-	0,04	0,035	0,3	-
10kp	0,07-0,14	0,07	0,35-0,65	0,15	0,3	-	0,04	0,035	0,3	-
20	0,17-0,24	0,17-0,37	0,35-0,65	0,25	0,25	-	0,03	0,025	0,3	-
35	0,32-0,40	0,17-0,37	0,50-0,80	0,25	0,30	-	0,04	0,035	0,3	-
45	0,42-0,45	0,17-0,37	0,50-0,80	0,25	-	-	0,04	0,035	-	-
St2sp	0,09-0,15	0,15-0,30	0,25-0,50	0,30	-	-	0,05	0,04	-	0,01
St2ps	0,09-0,15	0,05-0,15	0,25-0,50	0,30	-	-	0,05	0,04	-	0,01
St4sp	0,18-0,27	0,15-0,30	0,40-0,70	0,30	-	-	0,05	0,04	-	-
St4ps	0,18-0,27	0,05-0,15	0,40-0,70	0,30	-	-	0,05	0,04	-	-
St4kp	0,18-0,27	0,05	0,40-0,70	0,30	-	-	0,05	0,04	-	-

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