GB/T 15008-2025 English PDFGB/T 15008: Historical versions
Basic dataStandard ID: GB/T 15008-2025 (GB/T15008-2025)Description (Translated English): Corrosion resistant alloy bars Sector / Industry: National Standard (Recommended) Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 15008-2020, GB/T 38589-2020 GB/T 15008-2020: Welded Nickel-Iron-Chromium Alloy Pipes for Fluid Service---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Corrosion-resistant alloy bars ICS 77.140.60 H59 National Standards of People's Republic of China Replace GB/T 15008-2008 Corrosion resistant alloy rod 2020-03-31 release 2020-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 15008-2008 "Corrosion Resistant Alloy Rod". Compared with GB/T 15008-2008, the main technical changes are as follows. --- Deleted forged bars and requirements (see Chapter 1 of the.2008 edition); --- Modify the size, shape and allowable deviation regulations (see Chapter 5, Chapter 5 of the.2008 edition); --- Increase the unified digital code of the alloy, and the brand name is modified to a new representation method (see Table 1, Table 6 of the.2008 edition); --- Added seven alloy grades and requirements of NS1104, NS1105, NS2401, NS3308, NS4301, NS6400, NS6500 (See Table 1, Table 6 of the.2008 edition); --- Modified the carbon content of the NS3304 brand (see Table 1, Table 6 of the.2008 edition); --- Added the provisions for ultrasonic testing of bars (see 6.6); --- Modified the surface quality requirements (see 6.7, Chapter 7 of the.2008 edition); --- Modified the requirements for packaging, marking and quality certificates (see Chapter 9, Chapter 11 of the.2008 edition); --- Added informational appendix "Comparison of domestic and foreign corrosion-resistant alloy grades" (see Appendix A). This standard was proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). This standard was drafted by. Northeast Special Steel Group Co., Ltd., Pangang Group Jiangyou Great Wall Special Steel Co., Ltd., Shanghai Yilanghe Gold Material Co., Ltd., Metallurgical Industry Information Standards Institute. The main drafters of this standard. Kang Ge, Bu Junjie, Fang Yi, Xu Xiaoping, Wang Lianchao, Fu Huaqing, Yan Chengming. The previous versions of the standard replaced by this standard are as follows. --- GB n272-1988, GB/T 15008-1994, GB/T 15008-2008. Corrosion resistant alloy rod1 ScopeThis standard specifies the classification, order content, size, shape, weight, technical requirements, test methods, inspection rules, packages of corrosion-resistant alloy bars Equipment, signs and quality certificates. This standard applies to iron-nickel-based, nickel-based, nickel-copper-based hot-rolled bars with a nominal diameter not greater than 150 mm used in corrosive media (Hereinafter referred to as bar).2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 223.5 Determination of acid-soluble silicon and total silicon content in iron and steel-reduced silicomolybdate spectrophotometry GB/T 223.8 Methods for chemical analysis of iron, steel and alloy-Determination of aluminum content by sodium fluoride separation-EDTA titration GB/T 223.9 Determination of aluminum content in iron, steel and alloy Chromazurol S spectrophotometry GB/T 223.11 Determination of chromium content of iron, steel and alloy by visual titration or potentiometric titration GB T223.14 Methods for chemical analysis of iron, steel and alloy-The tantalum reagent extraction photometric method for the determination of vanadium content GB/T 223.17 Methods for chemical analysis of iron, steel and alloy-The diantipyrylmethane photometric method for the determination of titanium content GB/T 223.18 Methods for chemical analysis of iron, steel and alloy-Sodium thiosulfate separation-iodometric method for the determination of copper content GB/T 223.22 Methods for chemical analysis of iron, steel and alloy-Nitroso R salt spectrophotometric method for the determination of cobalt content GB/T 223.25 Methods for chemical analysis of iron, steel and alloy-The dimethylglyoxime gravimetric method for the determination of nickel content GB/T 223.28 Methods for chemical analysis of iron, steel and alloy-The α-benzoin oxime gravimetric method for the determination of molybdenum content GB/T 223.38 Methods for chemical analysis of iron, steel and alloy-Ion exchange separation-gravimetric method for the determination of niobium content GB/T 223.40 Determination of niobium content in steel and alloys Chlorosulfon S spectrophotometry GB/T 223.42 Methods for chemical analysis of iron, steel and alloy-Ion exchange separation-bromopyrogallol red photometric method for the determination of tantalum content GB/T 223.43 Determination of tungsten content of steel and alloy gravimetric method and spectrophotometric method GB/T 223.62 Methods for chemical analysis of iron, steel and alloy-The butyl acetate extraction photometric method for the determination of phosphorus content GB/T 223.63 Methods for chemical analysis of iron, steel and alloy The sodium periodate (potassium) photometric method for the determination of manganese content GB/T 223.73 Determination of iron content in iron, steel and alloy Titanium trichloride-potassium dichromate titration method GB/T 223.75 Determination of boron content in steel and alloys Methanol distillation-curcumin photometric method GB/T 223.79 Determination of multi-element content of iron and steel X-ray fluorescence spectrometry (conventional method) GB/T 223.85 Determination of sulfur content in steel and alloys Infrared absorption method after combustion in induction furnace GB/T 223.86 Determination of total carbon content of steel and alloys Infrared absorption method after combustion in induction furnace GB/T 228.1 Tensile test of metallic materials Part 1. Test method at room temperature GB/T 228.2 Tensile test of metallic materials Part 2. High temperature test method GB/T 229 Charpy pendulum impact test method for metallic materials GB/T 230.1 Rockwell hardness test of metallic materials Part 1. Test method GB/T 2039 Metal material uniaxial tensile creep test method GB/T 2975 Steel and steel product mechanical properties test sampling position and sample preparation GB/T 4162-2008 Ultrasonic testing method of forged steel bars GB/T 6394 Method for determining the average grain size of metals GB/T 10561-2005 Determination of the content of non-metallic inclusions in steel Standard micrograph inspection method GB/T 11170 Determination of multi-element content of stainless steel Spark discharge atomic emission spectrometry (conventional method) GB/T 14999.2 Test method for superalloys Part 2. Acid leaching inspection of horizontal low-magnification and defects GB/T 15007 corrosion-resistant alloy grade GB/T 15260 Corrosion of metals and alloys Nickel alloy intergranular corrosion test method GB/T 20066 Sampling and preparation methods of samples for determination of chemical composition of steel and iron GB/T 20123 Determination of total carbon and sulfur content of iron and steel Infrared absorption method after high-frequency induction furnace combustion (conventional method) GB/T 36164 Determination of multi-element content of high alloy steel X-ray fluorescence spectrometry (conventional method) GB/T 38589 General technical requirements for corrosion-resistant alloy bars, wire rods and wires YB/T 4395 Determination of molybdenum, niobium and tungsten content in steel by inductively coupled plasma atomic emission spectrometry YS/T 325.2 Methods for chemical analysis of nickel-copper alloys. Part 2. Determination of copper content Electrolytic gravimetric method3 Classification3.1 Corrosion-resistant alloys are classified as follows. a) An iron-nickel-based alloy with an nickel content of 30% to 50%, and an alloy with a nickel content and iron content of not less than 60%; b) Nickel-based alloys, alloys with a nickel content of not less than 50%; c) Nickel-copper alloy, an alloy with a nickel content of not less than 50% and a sum of nickel content and copper content of not less than 90%. 3.2 Bars are divided into the following two categories according to the processing methods used. a) Steel for pressure processing UP; b) Steel UC for cutting. The use and processing method of the bar should be specified in the contract, and if not specified, the steel for cutting and processing.4 Order contentThe contract or order placed according to this standard shall include the following. a) Number of this standard; b) Product name; c) Trademark (or unified digital code); d) The weight (or quantity) delivered; e) specifications; f) Processing method (if not specified, the steel for cutting processing); g) Smelting method (see 6.2); h) Delivery status; i) Special requirements (see 6.8). 5 Dimensions, shape and weight The size, shape, weight and allowable deviation of the bar shall comply with the provisions of GB/T 38589.6 Technical requirements6.1 Brand and chemical composition 6.1.1 The alloy grade and chemical composition (melting analysis) should meet the requirements in Table 1. After negotiation between the supply and demand parties, and indicated in the contract, Supply alloys of other brands and chemical compositions. 6.1.2 The allowable deviation of the chemical composition of the finished alloy shall comply with the provisions of GB/T 15007. 6.2 Smelting method Unless otherwise specified in the contract, the smelting method shall be chosen by the supplier. 6.3 Delivery status The bar is delivered in hot rolled or solid solution state, or in hot peeled or solid solution peeled, car polished, polished state. Indicate. 6.4 Mechanical properties 6.4.1 For the rods delivered in the hot-rolled state, the mechanical properties of the sample blank after solution treatment shall comply with the requirements in Table 2. 6.4.2 Bars delivered in the state of solution treatment, samples are taken from the bars delivered for inspection, and their mechanical properties should be The requirements of Table 2 and Table 3, but for bars with a diameter greater than 80mm, the mechanical performance indicators are determined by consultation between the supplier and the buyer. 6.4.3 For the age-strengthened alloy, the sample blank is cut from the bar in the delivery state, and the mechanical properties after ageing treatment should comply with Table 3 Provisions. NS4301's high temperature endurance performance should meet the requirements of Table 4. 6.4.4 The diameter of the sample blank is 25mm. When the diameter of the bar is below 25mm, it can be made by direct solution treatment of the original diameter bar Sample. 6.4.5 The performance indicators in Table 2 are applicable to rods with a diameter not greater than 80 mm, and rods with a diameter greater than 80 mm are allowed to be rolled (forged) into Sampling inspection after 80mm, its performance indicators should meet the requirements of Table 2. Table 2 Mechanical properties 6.5 Low power organization There should be no visually visible residual shrinkage cavities, bubbles, inclusions or cracks on the horizontal acid leaching low-magnification sample of the bar. 6.6 Ultrasonic testing Bars should be ultrasonically tested. Bars with a nominal diameter of not more than 80mm should meet the requirements of Grade A in GB/T 4162-2008, Bars with a nominal diameter greater than 80mm shall comply with the provisions of Class B in GB/T 4162-2008. 6.7 Surface quality The surface quality of the bar should meet the requirements of GB/T 38589. 6.8 Special requirements According to the requirements of the purchaser, after consultation between the supply and demand parties and the indication in the contract, the chemical composition, high temperature tensile properties, grain size, non- Metal inclusions, intergranular corrosion and other special requirements, or provide special smelting methods, delivery status, other sizes, shapes and allowable deviation bars.7 Test method7.1 The inspection items and test methods of the bar shall meet the requirements of Table 5. 7.2 The chemical analysis method shall be performed according to GB/T 223.79, GB/T 20123, GB/T 36164, GB/T 11170 or general methods, but According to GB/T 223.5, GB/T 223.8, GB/T 223.9, GB/T 223.11, GB T223.14, GB/T 223.17, GB/T 223.18, GB/T 223.22, GB/T 223.25, GB/T 223.28, GB/T 223.38, GB/T 223.40, GB/T 223.42, GB T223.43, GB/T 223.62, GB/T 223.63, GB/T 223.73, GB/T 223.75, GB/T 223.85, GB/T 223.86, The provisions of YB/T 4395 or YS/T 325.2 are carried out. Table 5 Inspection items, sampling locations, sampling quantity and test methods8 Inspection rulesThe inspection rules for bars shall comply with the provisions of GB/T 38589. 9 Packaging, marking and quality certificates The packaging, marking and quality certificate of the bar shall comply with the provisions of GB/T 38589. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 15008-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 15008-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 15008-2025_English with my colleagues?Answer: Yes. 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