Stainless steel pipe fittings term one. ① Delivery status General terms of delivery of the final product is a plastic deformation or final heat treatment condition. Delivery generally not heat-treated, said hot-rolled or cold drawn (rolled) state or manufactured state; delivery of said heat treatment heat-treated state, or under the category called normalizing heat treatment (normalization), quenching, solution annealing state. When ordering, delivery condition required in the contract. ② Press the actual weight of the delivery or delivery by theoretical weight actual weight - delivery, the weight of their products is based on weighing (weighing) Weight Delivery; theoretical weight - delivery, the weight of their products is based on the nominal size of steel calculated weight. The formula is as follows (theoretical weight required by the delivery person, to be specified in the contract): stainless steel pipe fittings theoretical weight per meter (the density of steel is 7.85kg/dm3) formula: W = 0.02466 (DS) S where : W - stainless steel pipe fittings theoretical weight per meter, kg / m; D - stainless steel pipe fittings nominal diameter, mm; S - stainless steel pipe fittings of nominal wall thickness, mm. ③ guarantee conditions under the current provisions of the standard project for inspection and to ensure compliance with provisions of the standard, called the guarantee conditions. Guarantee conditions are divided into: A, the basic guarantee conditions (also known as a necessary condition). Regardless of whether the customer specified in the contract. Standards required by the provisions of such examination, and to ensure that test results meet the standard requirements. Such as chemical composition, mechanical properties, dimensional tolerances, surface quality and testing, hydrostatic test or flattening or flaring process performance such experiments are a necessary condition. B, agreements guarantee conditions: standard, in addition to the basic guarantee conditions, there are "According to the requirements, agreed between, and in the contract note? Quot;, or" When demand side ...... should be in the contract note that "; Some customers, the basic guarantee for the standard conditions tightened requirements proposed (such as composition, mechanical properties, dimensional tolerances, etc.) or to increase inspection items (such as stainless steel pipe ovality, wall thickness inequality). above terms and requirements In order, negotiated by both parties and signed technical delivery specified in the contract agreement and, therefore, these conditions also known as protocol guarantees condition there is an agreement to ensure conditions of the product, generally have to fare increases. ④ batch standard The "batch" means an inspection unit that inspection lot. terms of delivery unit group batches, called consignment when the delivery of large quantities when a consignment may consist of several test batches; when delivery volume is low , an inspection lot can be divided into several consignments. "batch" component usually has the following provisions (see the relevant standards): A, each lot shall be the same grade (grade), with the stove (tank) number or the same Mother furnace, with the same size and the same heat treatment system (heats) composed of a stainless steel pipe fittings. B, for high-quality carbon steel pipe, fluid pipe, can be different stove (tank) of the same grade, the same size and the same heat treatment system (furnace times) composed of stainless steel pipe fittings. C, welded stainless steel pipe fittings each batch shall be the same grade (grade), with the specifications of stainless steel pipe fittings composition. ⑤ quality steel and high quality steel and GB/T3077-1999 standards in GB/T699-1999 in, the grade is followed by a letter "A", serving high quality steel, contrary to general quality steel. High quality steel part or all of the following superior quality steel: A, narrowing the scope of ingredients; B, to reduce the harmful elements (such as sulfur, phosphorus, copper) content; C, to ensure a high purity (low content of non-metallic inclusions required); D, ensure high mechanical properties and process performance. ⑥ vertical and horizontal standards, said longitudinal means and processing parallel to the direction (ie, along the machine direction) persons; transverse direction is vertical and processing (processing of stainless steel pipe fittings axial direction, that is). impact energy to do the experiment, the longitudinal fracture of the specimen due to the machining direction perpendicular so called transverse fracture; transverse specimen fracture due to the machining direction parallel to the, so called vertical fracture. Related Products: sanitary fittings, sanitary elbow, stainless steel pipe fittings, stainless steel elbow Wenzhou Anbo Light Industry Machinery Co., Ltd. Tel :0577 -86,828,771 -86,812,870 Fax :0577 Address: Wenzhou City Industrial Zone, Shacheng seventy-three Mobile: 13868846909/13587873463 Contact: Shao Wentao URL: http://www.anbomachinery.com