YB/T 5222-2014 PDF English
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YB/T 5222: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| YB/T 5222-2014 | 195 | Add to Cart | Auto, 9 seconds. | Quality hot rolled and forged carbon structural steel round tube blank | Valid |
| YB/T 5222-2004 | 319 | Add to Cart | 3 days | Quality carbon structural steel round tube blank | Obsolete |
| YB/T 5222-1993 | 199 | Add to Cart | 2 days | Quality Carbon Steel seamless tube blank | Obsolete |
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YB/T 5222-2014: Quality hot rolled and forged carbon structural steel round tube blank
---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/YBT5222-2014YB NONFERROUS INDUSTRY STANDARD ICS 77.140.60 H 43 Replacing YB/T 5222-2004 Quality hot rolled and forged carbon structural steel round tube blank Issued on. OCTOBER 14, 2014 Implemented on. APRIL 01, 2015 Issued by. Ministry of Industry and Information Technology of the People's Republic of China.
Table of Contents
Foreword... 3 1 Scope... 4 2 Normative references... 4 3 Ordering content... 7 4 Size, shape, weight and allowable deviations... 7 5 Technical requirements... 9 6 Test methods... 11 7 Inspection rules... 11 8 Packaging, marks, quality certificates... 12 9 Numerical rounding... 12Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces YB/T 5222-2004 "Quality carbon structural steel round tube blank". Compared with YB/T 5222-2004, the main changes in this document are as follows. - Delete the relevant requirements for continuous cast round tube blanks; - Add the content related to forged round tube blanks; - Modify the diameter range of round tube blanks; - Modify the allowable diameter deviation; - Modify the diameter cut slope; - Modify the delivery state; - Modify the relevant regulations on macrostructure. This Standard was proposed by China Iron and Steel Industry Association. This Standard shall be under the jurisdiction of National Technical Committee on Steel of Standardization Administration of China (SAC/TC 183). The drafting organizations of this Standard. Hunan Valin Xiangtan Iron and Steel Group Co., Ltd., Hengyang Valin Steel Pipe Co., Ltd., Tianjin Iron and Steel Group Co., Ltd., and Metallurgical Industry Information Standards Research Institute. Main drafters of this Standard. Liu Jianbing, Zhao Bin, Gong Wenxu, Li Xiaoli, Xiao Hongguang, Sun Guoqing, Wang Yujie, Liu Baoshi, Wu Qingming. Versions of standard substituted by this Standard are. - GB/T 11172-1985; - YB/T 5222-1993, YB/T 5222-2004. Quality hot rolled and forged carbon structural steel round tube blank1 Scope
This Standard specifies the ordering content, size, shape, weight and allowable deviations, technical requirements, test methods, inspection rules and packaging, marks, quality certificates, etc. for quality hot rolled and forged carbon structural steel round tube blanks. This Standard is applicable to hot-rolled round tubes with a diameter of 50mm~400mm and forged round tube blanks with a diameter of 60mm~900mm (hereinafter referred to as tube blanks) for the manufacture of seamless steel pipes.2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) 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 diantipyryl methane 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 223.9, Iron, steel and alloy -- Determination of aluminium content -- Chrome azurol S photometric method GB/T 223.11, Iron, steel and alloy -- Determination of chromium content -- Visual titration or potentiometric titration method 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 223.18, Methods for chemical analysis of iron steel and alloy -- The sodium thiosulfate separation iodometric method for the determination of copper 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, Iron, steel and alloy -- Determination of nickel content -- The dimethylglyoxime spectrophotometric method3 Ordering content
Contracts or orders for ordering products based on this Standard shall include the following.4 Size, shape, weight and allowable deviations
4.1 Size and allowable deviations of tube blanks 4.2 Length and allowable deviation 4.2.1 Usual length The usual length of hot-rolled tube blanks is 2000mm~12000mm. The usual length of forged tube blanks is 1000mm~10000mm. 4.3 Shape 4.4 Weight The tube blanks are delivered according to actual weight. After negotiation between the supplier and the purchaser and noted in the contract, delivery can also be based on theoretical weight.5 Technical requirements
5.1 Designation and chemical composition 5.3 Delivery state Tube blanks are generally delivered in hot-rolled and forged states. After negotiation between the supplier and the purchaser and noted in the contract, delivery can also be made in other states. 5.4 Macrostructure 5.5 Non-metallic inclusions According to the requirements of the purchaser, the tube blanks can be inspected for non-metallic inclusions according to Method A in GB/T 10561-2005.The qualification level is determined by negotiation between the supplier and the purchaser. 5.6 Grain size According to the requirements of the purchaser, the tube blank can be inspected for austenite grain size according to GB/T 6394.The qualification level is determined through coordination between the supplier and the purchaser. 5.7 Surface quality 5.8 Special requirements After negotiation between the supplier and the purchaser and noted in the contract, inspection of other items can be carried out. Specific inspection items and indicators shall be determined through negotiation between both parties.6 Test methods
The inspection items, sampling quantity, sampling locations and test methods of each batch of tube blanks shall comply with the provisions of Table 3.7 Inspection rules
7.1 Inspection and acceptance The quality of tube blanks is controlled by the supplier's quality supervision department. The purchaser has the right to conduct re-inspection.8 Packaging, marks, quality certificates
The marks, packaging and quality certificate of the tube blanks shall comply with the provisions of GB/T 2101.9 Numerical rounding
Numerical rounding shall comply with the provisions of YB/T 081. YB/T 5222-2014 YB NONFERROUS INDUSTRY STANDARD ICS 77.140.60 H 43 Replacing YB/T 5222-2004 Quality hot rolled and forged carbon structural steel round tube blank Issued on. OCTOBER 14, 2014 Implemented on. APRIL 01, 2015 Issued by. Ministry of Industry and Information Technology of the People's Republic of China.Table of Contents
Foreword... 3 1 Scope... 4 2 Normative references... 4 3 Ordering content... 7 4 Size, shape, weight and allowable deviations... 7 5 Technical requirements... 9 6 Test methods... 11 7 Inspection rules... 11 8 Packaging, marks, quality certificates... 12 9 Numerical rounding... 12Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces YB/T 5222-2004 "Quality carbon structural steel round tube blank". Compared with YB/T 5222-2004, the main changes in this document are as follows. - Delete the relevant requirements for continuous cast round tube blanks; - Add the content related to forged round tube blanks; - Modify the diameter range of round tube blanks; - Modify the allowable diameter deviation; - Modify the diameter cut slope; - Modify the delivery state; - Modify the relevant regulations on macrostructure. This Standard was proposed by China Iron and Steel Industry Association. This Standard shall be under the jurisdiction of National Technical Committee on Steel of Standardization Administration of China (SAC/TC 183). The drafting organizations of this Standard. Hunan Valin Xiangtan Iron and Steel Group Co., Ltd., Hengyang Valin Steel Pipe Co., Ltd., Tianjin Iron and Steel Group Co., Ltd., and Metallurgical Industry Information Standards Research Institute. Main drafters of this Standard. Liu Jianbing, Zhao Bin, Gong Wenxu, Li Xiaoli, Xiao Hongguang, Sun Guoqing, Wang Yujie, Liu Baoshi, Wu Qingming. Versions of standard substituted by this Standard are. - GB/T 11172-1985; - YB/T 5222-1993, YB/T 5222-2004. Quality hot rolled and forged carbon structural steel round tube blank1 Scope
This Standard specifies the ordering content, size, shape, weight and allowable deviations, technical requirements, test methods, inspection rules and packaging, marks, quality certificates, etc. for quality hot rolled and forged carbon structural steel round tube blanks. This Standard is applicable to hot-rolled round tubes with a diameter of 50mm~400mm and forged round tube blanks with a diameter of 60mm~900mm (hereinafter referred to as tube blanks) for the manufacture of seamless steel pipes.2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) 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 diantipyryl methane 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 223.9, Iron, steel and alloy -- Determination of aluminium content -- Chrome azurol S photometric method GB/T 223.11, Iron, steel and alloy -- Determination of chromium content -- Visual titration or potentiometric titration method 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 223.18, Methods for chemical analysis of iron steel and alloy -- The sodium thiosulfate separation iodometric method for the determination of copper 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, Iron, steel and alloy -- Determination of nickel content -- The dimethylglyoxime spectrophotometric method3 Ordering content
Contracts or orders for ordering products based on this Standard shall include the following.4 Size, shape, weight and allowable deviations
4.1 Size and allowable deviations of tube blanks 4.2 Length and allowable deviation 4.2.1 Usual length The usual length of hot-rolled tube blanks is 2000mm~12000mm. The usual length of forged tube blanks is 1000mm~10000mm. 4.3 Shape 4.4 Weight The tube blanks are delivered according to actual weight. After negotiation between the supplier and the purchaser and noted in the contract, delivery can also be based on theoretical weight.5 Technical requirements
5.1 Designation and chemical composition 5.3 Delivery state Tube blanks are generally delivered in hot-rolled and forged states. After negotiation between the supplier and the purchaser and noted in the contract, delivery can also be made in other states. 5.4 Macrostructure 5.5 Non-metallic inclusions According to the requirements of the purchaser, the tube blanks can be inspected for non-metallic inclusions according to Method A in GB/T 10561-2005.The qualification level is determined by negotiation between the supplier and the purchaser. 5.6 Grain size According to the requirements of the purchaser, the tube blank can be inspected for austenite grain size according to GB/T 6394.The qualification level is determined through coordination between the supplier and the purchaser. 5.7 Surface quality 5.8 Special requirements After negotiation between the supplier and the purchaser and noted in the contract, inspection of other items can be carried out. Specific inspection items and indicators shall be determined through negotiation between both parties.6 Test methods
The inspection items, sampling quantity, sampling locations and test methods of each batch of tube blanks shall comply with the provisions of Table 3.7 Inspection rules
7.1 Inspection and acceptance The quality of tube blanks is controlled by the supplier's quality supervision department. The purchaser has the right to conduct re-inspection.8 Packaging, marks, quality certificates
The marks, packaging and quality certificate of the tube blanks shall comply with the provisions of GB/T 2101.9 Numerical rounding
Numerical rounding shall comply with the provisions of YB/T 081. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
