1. steel theoretical weight
The theoretical weight of steel is the nominal size and density of steel (formerly called specific gravity) calculated weight is called the theoretical weight. This is the length of the steel size, cross-sectional area and size tolerances are directly related. Due to the tolerances of the steel in the manufacturing process, so the formula to calculate the theoretical weight and actual weight of a certain access, so only as a reference in the estimate.
2 the actual weight of steel
The actual weight of the steel is the weight of the steel from the actual weighing (weighing), known as the actual weight. The actual weight than the theoretical weight accurate.
3 steel weight calculation method
⑴ GW. "Net" symmetry, the combined total weight of the steel itself and the packaging materials. Calculation of freight transport enterprises gross weight of steel buying and selling according to net weight.
⑵ NW. Is the symmetry of the "gross weight". Steel gross weight minus the weight after the weight of packaging materials, the actual weight, called the Net. Generally calculated according to net weight in steel buying and selling.
⑶ skin weight. The weight of steel packaging materials, called the tare weight.
⑷ weight tons. Unit of weight used in the steel gross weight of freight. The legal units of measurement tons (1000kg), there are long ton (imperial unit of weight 1016.16kg) short ton (U.S. unit of weight 907.18kg).
(5) chargeable weight, also known as "revenue tons" or "freight ton". Transport sector to receive a shipping weight of steel. Different modes of transport, there are different calculation standards and methods. Transport such as railway vehicle, generally marked load of lorries used as the chargeable weight. Road transport is the combination of vehicles dwt payment of freight. Rail, road, LTL, while gross weight several kilograms for a minimum chargeable weight less than into the whole