ROUND BILLEF FOR POWER UNIT STEAM PIPES WITH SUPERCRITICAL PARAMETERS (BOILER)

Sizes: According to GOST 2590-88, DIN EN 10060, ASTM A29/A29M

Basic sizes, diameter 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160, 180mm
Intermediate sizes May be supplied only as turned according to preliminary agreement
Length 4500–5900mm,
9000–11800mm
Steel grades 20-ÏÂ, 12Õ1ÌÔ-ÏÂ, 15ÃÑ, 1Õ2Ì1
(10CrMo9 10), 15ÕÌ, 13CrMo4 etc.
Chemical composition According to TU14-1-1529-2003,
TU14-1-5185-93, TU14-1-5271-94,
plant specification
Heat treatment Hot rolled or antiflocculation annealed
Surface condition Hot rolled, turned or surface defects abraded
Packing — Packages diameter 150–500mm, weight up to 10 t
— Packages are bonded with wire or baling band
Marking — Heat number and a steel grade code are stamped on one end of a billet
— The opposite end of each billet may have colour marking
— Two tags specifying contract number, country of destination, steel grade, heat number, size in
mm, supplier name and package weight are attached to each package