Tubes

RM Alkon Stahl offers from its stock a wide range of welded tubes made of inox, of 1.4301 (Č.4580) grade, with diverse surface finishes - from round TIG welded tubes for pressure purposes (EN 10217-7) and for the food (SMS3008/DIN11850) industry, through HF welded round tubes intended for general and decorative purposes, up to square and rectangular tubes for constructions and interiors.

Due to the most up-to-date line for grinding and polishing of round tubes, square, rectangular tubes and flat bars, RM Alkon Stahl offers diverse surface finishes, from mildly ground to reflective surfaces, i.e. highly polished surfaces.
Stainless steel welded tubes are delivered in accordance with ISO/Metric dimensions, and the tolerances are in accordance with EN ISO 1127 Standard.
Seamless pipes and other grades are offered from import, with relatively short delivery time.

Stainless Steel Grades

EN / W.Nr.	DIN	AISI	JUS	Ravne
1.4301	X 5 CrNi 18-10	304	Č.4580	Prokron 11 extra
1.4307	X 2 CrNi 18-9	304 L	-	-
1.4401	X 5 CrNiMo 17-12-2	316	Č.4573	Prokron 12
1.4404	X 2 CrNiMo 17-12-2	316 L	Č.45703	-
1.4432	X 2 CrNiMo 17-12-3	316 L	-	-
1.4462	X 2 CrNiMoN 22-5-3	-	-	-
1.4539	X 1 CrNiMoCu 25-20-5	904 L	-	-
1.4541	X 6 CrNiTi 18-10	321	Č.4572	Prokron 11 special
1.4571	X 6 CrNiMoTi 17-12-2	316 Ti	Č.4574	Prokron 12 special
1.4762	X 10 CrAlSi 25	(446)	Č.4970	Prokron 10
1.4841	X 15 CrNiSi 25-21	314	Č.4578	Prokron 19

Welded Tubes

Round (TIG)	Round (HF)	Square	Rectangular	Oval
DIN 17457 EN 10217-7	DIN 17455 EN 10296-2	DIN 17440 EN 10088	DIN 17440 EN 10088	DIN 17440 EN 10088
Pressure purposes	For general purpose	For general purpose	For general purpose	For general purpose
DIN 11850 SMS 3008	Ground Polished	Ground Polished	Ground Polished	Ground Polished
Tol. EN ISO 1127

Seamless Pipes

For general purpose	For special purpose	Heat resistant	Dimensions in accordance with	Hollow bars
DIN 17456 EN 10297-2	DIN 17458 EN 10216-5	DIN 17458 SEW 470	ANSI ASME B36.19	DIN 17456
Tol. EN ISO 1127			Tol. ASTM 312	Tol. of the manufacturer

For more details about the products see the section Download / Stainless steels.