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GB/T 701-2008: Hot rolled low carbon steel wire rods Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 701: Historical versions
GB/T 701-2008: Hot rolled low carbon steel wire rods---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT701-2008GB 77.140.60 H 44 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA GB/T 701-2008 Replacing GB/T 701-1997 Hot Rolled Low Carbon Steel Wire Rods Issued on. AUGUST 5, 2008 Implemented on. APRIL 1, 2009 Jointly Issued by. General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ); Standardization Administration (SAC) of the People's Republic of China. Table of ContentsForeword...3 1 Scope...5 2 Normative References...5 3 Order Content...7 4 Dimension, Shape, Weight And Allowable Deviation...7 5 Technical Requirements...7 6 Test Method...8 7 Test Rules...9 8 Packing, Marking and Quality Certificate...9ForewordThis Standard modifies and adopts JIS G 3505.2004 "Low carbon steel wire rods" (English edition). The standard is redrafted according to JIS G 3505.2004.Compared with JIS G 3505.2004, the main technical differences of this Standard are as follows. — Due to different designation, the designation of iron and steel in China is adopted. And the requirements in composition of some elements are adjusted; — The requirements on the cold bending performance arrangement are added; — The requirements on value rounding are added. This Standard replaces GB/T 701-1997 "Hot rolled low carbon steel wire rods". Compared with GB/T 701-1997, the main technical differences are as follows. — The wire rods for building are deleted from the scope of application. And the scope of application is revised as "low-carbon steel hot-rolled wire rods for deep processing and other general purpose"; — The chapter "order content" is added; — The steel grades are deleted. They are unified as Q195, Q215 and Q235. Designation Q275 is added; ——The requirements in sulfur and phosphorus contents of the steel are revised; — The tensile strength and elongation after fracture of steels are revised; — The clause "surface quality" is revised; — The clause "test rules" is revised. And the requirements on the mixed group of different furnace numbers are deleted; — The clause "smelting process" is revised. And the open-hearth furnace smelting is deleted; — The requirements on value rounding are added. This Standard was proposed by China Iron & Steel Association. This standard shall be under the jurisdiction of the State Technical Committee for Standardization of Steel. Drafting organizations of this Standard. Maanshan Iron & Steel Co., Ltd., Jiangsu Yonggang Group Co., Ltd., Qingdao Iron and Steel Group Co., Ltd., Shougang Group Co., Ltd., Anyang Iron and Steel Group Company Co. Ltd., Xuanhua Iron and Steel Group Co., Ltd., Shandong Shiheng Special Steel Group Co., Ltd., and China Metallurgical Information and Standardization Research Institute. Chief drafting staffs of this Standard. Fang Tuoye, Song Qiang, Liu Yulan, Wui Huiying, Wu Jinyuan, Zheng Shifen, Wang Liping, Cheng Dezhao, Zhai Yongzhen, Chai Jianming, Wang Lingjun, and Dai Shifeng. The historical editions replaced by this Standard are. — GB/T 701-1965, GB/T 701-1991, GB/T 701-1997. Hot Rolled Low Carbon Steel Wire Rods1 ScopeThis Standard specifies order content, dimension and shape, weight and allowable deviation, technical requirements, test methods, test rules and packing, marking and quality certificate of hot-rolled low-carbon steel wire rods. This Standard is applicable to low-carbon steel hot-rolled wire rods for deep processing and other general purpose. This Standard is not applicable to the following products. — hot-rolled carbon bar steel for standard part; — steel wire rods for welding; — cold heading steel; — free-cutting structural steels; — bar steel for anchor chain.2 Normative ReferencesThe following normative documents contain provisions which, through reference in this text, constitute provisions of this Standard. For dated reference, the subsequent amendments (excluding correction) or revisions of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these editions are applicable. For undated references, the latest edition of the normative document referred to applies. GB/T 222 Permissible tolerances for chemical composition of steel products GB/T 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method (GB/T 223.5-1997, NEQ ISO 4829-1.1986, ISO 4829-2.1988) GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - the sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB/T 223.19 Methods for chemical analysis of iron steel and alloy - the neocuproine- chloroform extraction photometric method for the determination of copper content GB/T 223.23 Methods for chemical analysis of iron, steel and alloy - the dimethylglyoxime spectrophotometric method for the determination of nickel content (GB/T 223.23-1994, MOD ISO 4939.1984) GB/T 223.59 Methods for chemical analysis of iron, steel and alloy - The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content3 Order ContentThe order contracts this Standard applies shall include the following information.4 Dimension, Shape, Weight And Allowable Deviation4.1 The dimension, shape and allowable deviation of wire rods shall meet the requirements of GB/T 14981.And the rods coiling shall be tidy. 4.2 The weight of wire rods in each coil shall not be less than 1000kg; and 5% the coils each batch may be consisted of 2 roots (2 roots are allowed if there are less than 2 coils), but the weight of each root shall not be less than 300kg.5 Technical Requirements5.1 Designation and chemical composition 5.1.1 The designation and chemical composition (melting analysis) of steel shall meet the requirements of Table 1. 5.1.2 Aluminium is allowed to replace silicon for deoxygenation. 5.1.3 The residual content of chromium, nickel, copper and arsenic in steel shall meet the relevant provisions in GB/T 700. 5.2 Smelting process The steels shall be refined with oxygen converter and electric furnace. 5.3 Condition of delivery The wire rods shall be delivered in hot-rolled condition. 5.4 Mechanical property and process performance The mechanical property and process performance of wire rods shall meet the requirements of Table 2.Negotiated by both parties and indicated in contract, the cold bending performance test may be conducted. The cold bending performance index of wire rods with diameter larger than 12mm shall be determined by both parties. 5.5 Surface quality 5.5.1 The harmful defects on ends of wire rods shall be cut off. The cross-section of wire rods shall be free from shrink hole, delamination and intercalation.6 Test MethodInspection items and test methods for wire rods shall comply with the provisions of Table 3.7 Test Rules7.1 The inspection of wire rods shall be conducted by the supplier according to the requirements in Table 3.Purchaser may conduct acceptance according to this Standard. 7.2 Wire rods shall be inspected and accepted by batches. The products of a batch shall be consisted of the wire rods of same-designation, same-furnace number and same- dimension. 7.4 The re-inspection and judgment rules of wire rods shall meet the requirements of GB/T 2101. 7.5 The value rounding shall comply with the provisions of YB/T 081.8 Packing, Marking and Quality CertificateThe packing, marking and quality certificate of wire rods shall comply with the provisions of GB/T 2101. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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