Conditions for the production of billets
Types of billets
Billets for HPT mills (medium or small sizes) are tubes rolled in larger HPT mills and cold drawn stainless tubes. Billets for HPTP mills are welded and drawn tubes from HPT mills and tubes from larger HPTP mills. Each billet package must have a special label, which will indicate the size of the tube, steel grade, open-hearth furnace number, package number of tube welding, pipe rolling mill, route number, open-hearth furnace number and package number of tube drawing mill.
Billet Quality
The surface of a tube billet must be free of cracks, opalines, tears, foils, shells, rolls and dirt. The ends should be trimmed without burrs, perpendicular to the axis of the pipes. Pipes shall also be straight. Supply pipes are regulated by the following GOST: seamless stainless steel pipe — 9940−72, seamless hot-rolled pipe — 8732−70, electric-welded pipe -10704−63, welded pipe — 3262−75.
Tolerances
Intermediate size pipe made of alloyed or carbon steel, which goes for drawing and further cold rolling, has larger tolerances for wall thickness and diameter. For example, tubes of intermediate sizes made from stainless steel have a wall thickness tolerance of +12.5 (or 10%), while tubestubes up to 3.2 cm in diameter have an outside diameter tolerance of 0.5 to 1 mm, while tubes of larger diameters have an outside diameter tolerance of 0.5 to 1.6 mm. When rolling a dimensional intermediate billet with a deviation of the average actual wall thickness (Sfact) from the nominal (Snom), given the nominal length of the billet (Lnom), its actual length (Lfact) is determined according to the formula: Lfact = Lnom x Snom / Sfact. For billets for HPTR mills have the following tolerances for all sizes of pipes: the wall thickness ±0.1 mm, the outside diameter of +0.5 — 0.2 mm.
Supplier
Are you interested in our billet production conditions? Auremo’s billet production conditions comply with GOST and international quality standards. Supplier «Auremo» offers to buy tubular billets on favorable terms, the price is optimal. We offer to buy tubular billets from specialized warehouses of the supplier «Auremo» with delivery to any city. Wholesale customers the price — favorable. Always in stock billets tube, the price — the best from the supplier. We look forward to your orders.
Buy a bargain price.
Supplier «Auremo» offers to buy tubular billet, the price — due to the technological features of production without the inclusion of additional costs. The company’s website displays information on the latest arrivals of products. Billets for tubes of non-standard parameters are available on request. The price of the order depends on the volume and additional terms of delivery. The supplier «Auremo» invites you to buy billets in bulk or in installments. We have the best price-quality ratio for the entire range of products. In this segment, the company «Auremo» is a profitable supplier.
