YB T 5092-1996焊接用不锈钢.doc

本英文版为内部资料，仅供参考，以中文版为准。The Chinese version of standards has precedence to their English translations which are only for internal reference.A Industry Standard of Metallurgy of Ferrous Metals of the Peoples Republic of China中华人民共和国黑色冶金行业标准 YB/T 5092 1996焊 接 用 不 锈 钢A substitute for YB/T5092- 93Stainless steel wires for welding1 Subject content and application scopeThe content such as type classification, brand, dimension, appearance, technical requirement, test method, rules of acceptance inspection, package, label and quality certificate for the stainless steel wires for welding are stipulated in this standard.The standard is applicable for the stainless steel wires applied in arc welding, gas welding, automatic submerged-arc welding, electroslag welding and gas-shielded welding.2 Cited of standardsGB 222 Sampling method of samples for chemical analysis of steel and permissible deviations of chemical compositions of the finished productGB 232 Method of chemical analysis for steel and alloyGB 228 Test method for metal elongationGB 342 The size, appearance, weight and permissible deviation of hard drawn round steel wireGB 2103 General regulations for the acceptance inspection, package, label and quality certificate of the steel wire3 Type classification and brandSteel wires shall be classified into 3 types according to their organization situations. Their type and brand are listed in Table 1.4 Dimension and appearance4.1 Diameter of the steel wire shall conform to stipulations in Table 1 of GB342.4.2 Permissible deviation of diameter of the steel wire shall conform to stipulations of Grade 12 as regulated in Table 2 of GB 342. According to the requirement of the buyer, the delivery may be organized per Grade 11.4.3 The ellipticity of the steel wire shall not exceed half of the tolerance of its diameter.4.4 Each reel of steel wire shall be tidily arranged and shall not be disheveled or to form a shape of “”.4.5 Examples of labelThe stainless steel wire with D 3.0 mm for welding produced by H1Cr19Ni9, with permissible deviation of diameter of Grade 12 and delivery state as hard drawn (L) shall be labeled as:Table 15 Technical requirement5.1 Chemical compositions5.1.1 The chemical composition of steel of the steel wire (by heat analysis) shall conform to stipulations in Table 2.5.1.2 The permissible deviation of the chemical composition of steel wire shall conform to stipulations in Table 3 of GB 222.5.1.3 Steel wires of other brands or with special requirement on the chemical composition may be delivered if agreed between the buyer and the seller.5.3 Delivery state There two delivery states of the steel wire and their state and code number are listed below:Hard drawn state (L): regularly drawn after heat treatment;Soft state (R): pickled after bright heat treatment. Soft state delivery, if required, shall be written in the contract, otherwise the delivery shall be made in hard drawn state.5.3 Surface qualityThe surface of the steel wire shall be smooth and free from rust, crust of iron and other defects that would be harmful to application but the scuffing with a depth not exceeding half of the tolerance of diameter and other local defects not exceeding the tolerance shall be permissible. The oxidation color is allowable to be existed on the surface of the steel wires in soft state.5.4 Special requirements5.4.1 The tensile strength of the steel wire may be regulated via agreement between the buyer and the seller.5.4.2 The straight steel wire with specified length may be supplied according to the requirement of the buyer.6 Test methodThe test method and sampling requirement the steel wire shall conform to stipulations in Table 3.Table 3serial numbertest itemtest method quantity and location to be sampled1chemical compositionsGB 223at both ends of two reels2tensile strengthGB 228（L0 = 100mm）at one end of three reels3dimension accuracymeasure using measuring tool with corresponding accuracyeach reel4surface qualityvisual inspectioneach reel7 Inspection rules7.1 Inspection and acceptance The inspection and acceptance shall be made according to the stipulations in GB 2103.7.2 Batch organization rulesThe steel wire shall be inspected and accepted per batch and each batch shall be composed by steel wires of same brand, same furnace number, same size and in same delivery state.7.3 Sampling quantity The sampling quantity of the steel wire shall conform to stipulations in Table 3.7.4 Recheck and rules for judgment7.4.1 For chemical analysis, the judgment for carbon, phosphor and sulphur shall be made according to the composition at each end; for other elements, the judgment shall be made according to the mean value of the composition at both ends.7.4.2 For chemical composition analysis, with exception of carbon, it is permissible to make judgment according to the test result of any batch of each furnace number as a substitute for other batches.7.4.3 With exception of Article 7.4.1 and 7.4.2, the recheck and judgment shall be conducted according to stipulations in GB 2103. 8 Package, label and quality certificateThe package, label and quality certificate of the steel wire shall conform to stipulations in GB 2103. The austenitic and ferrite type steel wire shall not be oiled and a thin layer of lime coating shall be permissible. Their package shall meet the requirement of class IIC. The package of martensite type steel wire shall conform to the requirement of class III. The oiling of this type of steel wire may be exempted according to the requirement of the buyer and the content has been written in the contract.Attached explanation：This standard id suggested by the Ministry of Metallurgy Industry of th