Pipes and pipeline parts for reformers (ammonia production):
radiant area: N08800 / N08810 / N08811 (immediate analogue ХН32Т)
low carbon content of 0.05-0.1%, which reduces the possibility of carbide formation (especially at high temperatures);
controlled Ti + Al content of 0.4-0.7% (for operation at temperatures of 540°C-760°C) or 0.85-1.2% (at temperatures above 760°C) - oxidation resistance at temperatures above 600ºС;
supplied in maximum length to minimize the number of welds.
convection area: TP321H, TP347H;
dimensional range: OD 42,16-219,08 mm, WTH 2,77-23,01 mm.
High and medium pressure section (carbamide production):
strippers, coolers, scrubbers: heat exchanging pipes of austenitic grade 25Cr22Ni-2Mo (1.4466 or 310MoLN) or alternatively super-duplex steel S32750 (2507, 1.4410) with higher resistance to pitting (pit corrosion) due to a higher coefficient PREN; dimensional range OD 19–26 mm, TC1.65-2.11 mm, length up to 26 m;
pipelines and pipeline parts: 25Cr-22Ni-2Mo (1.4466 or 310MoLN) or 316LUG (1.4435);
Corrosion tests: ASTM A262 (pr.B, C), GOST 6032 (remote control method). Corrosion rate: 0.10 mm / year.
Metal products for production of orthophosphoric and sulfuric acids, nitrogen fertilizers:
pipes for heating elements of dihydrate production from alloy N08028, S32750 (2507, 1.4410), ХН30МДБ; TP904L; dimensional range 57 * 3 and 85 * 4;
pipelines and pipeline parts: TP904L, TP304L, TP310, 03H18N11, 08H18N10T, 10X23N18;
heat exchange tubes: TP304L, TP310, 03H18N11, 08H18N10T, 10X23N18;
Corrosion tests: ASTM A262 (pr.B, C), GOST 6032 (remote control method).