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GB 24512.2-2009 English PDF

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GB 24512.2-2009: [GB/T 24512.2-2009] Seamless steel tubes and pipes for nuclear power plant -- Part 2: Alloy steel seamless tubes and pipes
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GB 24512.2-2009419 Add to Cart 4 days [GB/T 24512.2-2009] Seamless steel tubes and pipes for nuclear power plant -- Part 2: Alloy steel seamless tubes and pipes Valid

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Basic data

Standard ID: GB 24512.2-2009 (GB24512.2-2009)
Description (Translated English): [GB/T 24512.2-2009] Seamless steel tubes and pipes for nuclear power plant -- Part 2: Alloy steel seamless tubes and pipes
Sector / Industry: National Standard
Classification of Chinese Standard: H48
Classification of International Standard: 77.140.75
Word Count Estimation: 16,193
Date of Issue: 2009-10-30
Date of Implementation: 2010-06-01
Quoted Standard: GB/T 222; GB/T 223.5; GB/T 223.9; GB/T 223.11; GB/T 223.14; GB/T 223.18; GB/T 223.23; GB/T 223.26; GB/T 223.29; GB/T 223.31; GB/T 223.37; GB/T 223.40; GB/T 223.53; GB/T 223.54; GB/T 223.58; GB/T 223.59; GB/T 223.60; GB/T 223.62; GB/T 223.63; GB/T 223.67; GB/T 223.68; GB/T 223.69; GB/T 223.71; GB/T 223.72; GB/T 223.76; GB/T 223.78; GB/T 224; GB/T 226; GB/T 228; GB/T 229; GB/T 231.1; GB/T 232; GB/T 241; GB/T 242; GB/T 246; GB/T 1979; GB/T 2102; GB/T 2975; GB/T 4336; GB/T 4338; GB/T 5777-2008; GB/T 6394; GB/T 7735; GB/T 10561; GB/T 12606; GB/T 13298; GB/T 17395; GB/T 17505; GB/T 20066; GB/T 20123; GB/T 20124; YB/T 4149; YB/T 5137
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2009 (No. 152 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Chinese standard specifies the nuclear power plant with a steel pipe joints classification code, size, shape, weight and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality reports. This standard applies to manufacturing nuclear non -class equipment pressure parts with a steel pipe joints.

GB 24512.2-2009: [GB/T 24512.2-2009] Seamless steel tubes and pipes for nuclear power plant -- Part 2: Alloy steel seamless tubes and pipes


---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.
Seamless steel tubes and pipes for nuclear power plant.Part 2. Alloy steel seamless tubes and pipes ICS 77.140.75 H48 National Standards of People's Republic of China Nuclear power plant seamless steel pipe Part 2. alloy steel seamless Published 2009-10-30 2010-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Foreword

5.1.2,5.2.2,5.3.1.2,5.3.2.1,5.5,5.7,6.1.2,6.1.3 this section , 6.2.2.2,9.2 are recommended, the rest Mandatory. GB 24512 "nuclear power plant seamless steel pipe," the expected structure and names are as follows. --- Part 1. Carbon steel seamless pipe; --- Part 2. alloy steel seamless pipe; --- part 3. stainless steel seamless pipe. This section GB 24512 Part 2 "seamless steel tube for nuclear power plant," the. Referring to this Part EN10216-2.2002 "The use of pressure Technical delivery conditions of seamless steel tubes - Part 2. Non-alloy and alloy steel predetermined elevated temperature properties "and" the ASME Boiler and Pressure Vessel Code, Part A, Vol. Ⅱ iron-based material "SA-213M 2007 Edition" boiler, superheater, and the heat exchanger ferrite and austenite Alloy steel seamless body Specification "and SA-335M" high temperature alloy steel seamless ferritic Specification "developed. Appendix A of this section is an informative annex. This section was proposed by China Iron and Steel Association. This section is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). This section was drafted. Pangang Group Chengdu Iron & Steel Co., Ltd., Metallurgical Industry Information Standards Institute, Suzhou Thermal Power Research Institute have Limited, Shenyang East Tube Power Technology Holdings Limited. This part drafter. Guo Yuanrong, into Long Beach, Yan e.g., Huang Ying, Zhao Yanfen, Li Qi, Dong Li, Xue Fei, Wu Hong, Liu Gang, in the ocean. Nuclear power plant seamless steel pipe Part 2. alloy steel seamless Range 1 This section specifies the GB 24512 alloy steel seamless nuclear power plant classification code, size, shape, weight and tolerance, TECHNOLOGY Surgery requirements, test methods, inspection rules, packaging, marking and reporting. This part of nuclear power plants for the manufacture of non-nuclear devices used alloy steel seamless pressure member.

2 Normative references

Terms of the following documents constitute provisions of this section by reference in this part of GB 24512. For dated reference documents Pieces, all subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encouraged to reach under this section Whether the parties to the agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Chemical composition of the finished GB/T 222 steel tolerance GB/T 223.5 steel Determination of total soluble silicon and silicon content reduced silicon molybdate salt spectrophotometric method (GB/T 223.5- 2008, ISO 4829-1. 1986, ISO 4829-2. 1988, MOD) GB/T 223.9 chromium alloy steel and the aluminum content was measured Azure S Spectrophotometry Determination of steel and alloy chromium content GB/T 223.11 visual titration or potentiometric titration (GB/T 223.11-2008, ISO 4937. 1986, MOD) GB/T 223.14 steel and tantalum alloys - reagent extraction and spectrophotometric determination of vanadium content GB/T 223.18 steel and alloys - sodium thiosulfate Separation - Determination of copper content Iodimetry GB/T 223.23 alloy steel and nickel content measured spectrophotometrically dimethylglyoxime GB/T 223.26 thiocyanate salt spectrophotometric determination of molybdenum content alloy steel and GB/T 223.29 alloy steel and the measurement vector precipitated lead content - Spectrophotometric xylenol orange Determination GB/T 223.31 and arsenic content of the alloy steel distillation - molybdenum blue spectrophotometric method (GB/T 223.31-2008, ISO 17058.2004, IDT) GB/T 223.37 steel and alloy analysis distillation - indophenol blue spectrophotometric determination of nitrogen GB/T 223.40 Determination of the contents of alloy steel and niobium sulphochlorophenol S Spectrophotometry GB/T 223.53 steel and alloy flame atomic absorption spectrometry copper content (GB/T 223.53- 1987, eqv ISO /DIS4943. 1986) GB/T 223.54 steel and alloy flame atomic absorption spectrophotometry nickel content (GB/T 223.54- 1987, eqv ISO /DIS4940. 1986) GB/T 223.58 steel and alloys - sodium arsenite - Determination of the amount of sodium nitrite titration manganese GB/T 223.59 phosphorus content of steel and alloy measured by bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method GB/T 223.60 steel and alloy perchloric acid dehydration gravimetric method for the determination of silicon content GB/T 223.62 Spectrophotometric determination of phosphorus and iron alloys - butyl acetate extraction GB/T 223.63 steel and alloys - sodium periodate (K) for Determination of the amount of GB/T 223.67 steel and alloy Determination of sulfur content methylene blue spectrophotometric method (GB/T 223.67-2008, ISO 10701.1994, IDT) Determination of sulfur content potassium iodate titration method after GB/T 223.68 and alloy steel pipe furnace combustion GB/T 223.69 after the carbon content and alloy steel measuring tube furnace combustion gas volumetric method Gravimetric method after the determination of carbon content GB/T 223.71 and alloy steel pipe furnace combustion GB/T 223.72 steel and alloy sulfur content Gravimetric method Determination of the amount of vanadium spectrometry GB/T 223.76 steel and alloy flame atomic absorption analysis of GB/T 223.78 steel and alloy curcumin spectrophotometric analysis of the boron content directly measured (GB/T 223.78-2000, idt ISO 10153.1997) GB /decarburized layer depth measurement method T 224 steel (GB/T 224-2008, ISO 3887.2003, MOD) GB/T 226 steel macrostructure defects and etching test method (GB/T 226-1991, neq ISO 4969. 1980) GB/T 228 materials at ambient temperature tensile test method (GB/T 228-2002, eqv ISO 6892.1998) GB/T 229 metal material Charpy pendulum impact test method (GB/T 229-2007, ISO 148-1.2006, MOD) GB/T 231.1 Brinell hardness test Part 1. Test method (GB/T 231.1-2002, eqv ISO 6506-1. 1999) GB/T 232 of a metal material bending test method (GB/T 232-1999, eqv ISO 7438. 1985) GB/T 241 Test Method metal hydraulic tube GB/T 242 Test Method for expanding the metal pipe port (GB/T 242-2007, ISO 8493.1998, IDT) GB/T 246 Test Method flattening the metal tube (GB/T 246-2007, ISO 8492.1998, IDT) GB/T 1979-fold structural steels and defect FIG. Acceptance of GB/T 2102 steel, packaging, marking and certification GB/T 2975 steel test sample position and the preparation and mechanical properties of samples of steel products (GB/T 2975-1998, eqv ISO 377. 1997) GB/T 4336 carbon steel and low alloy steel for spark discharge atomic emission spectrometric method (conventional method) GB/T 4338 high temperature tensile test method for metallic materials (GB/T 4338-2006, ISO 783.1999, MOD) GB/T 5777-2008 seamless steel ultrasonic testing method (ISO 9303. 1989, Seamlessandwelded (except submergedarc-welded) steeltubesforpressurepurposes-fulperipheralultrasonictestingforthede- tectionoflongitudinalimperfections, MOD) GB/T 6394 Determination of average grain size of the metal (GB/T 6394-2002, ASTME112.1996, MOD) GB/T 7735 steel eddy current testing method (GB/T 7735-2004, ISO 9304. 1989, MOD) GB/T 10561 content of nonmetallic inclusions in steel was measured standards diagrams microscopic test method (GB/T 10561-2005, ISO 4967.1998, IDT) GB/T 12606 Steel magnetic flux leakage inspection method (GB/T 12606-1999, eqv ISO 9402. 1989; ISO 9598. 1989) GB/T 13298 test method for a metal microstructure GB/T 17395 seamless steel pipe size, shape, weight and tolerance (GB/T 17395-2008, ISO 4200.1991, ISO 5252.1991, ISO 1127.1992, NEQ) GB/T 17505 Steel and steel products General technical delivery requirements (GB/T 17505-1998, eqv ISO 404.1992) GB/T 20066 Steel and iron chemical composition of the sample and the measurement sample preparation methods (GB/T 20066-2006, ISO 14284. 1996, IDT) GB/T 20123 total carbon and sulfur content of steel an induction furnace combustion infrared absorption method (conventional method) (GB/T 20123-2006, ISO 15350.2000, IDT) GB/T 20124 Determination of the nitrogen content in the steel the inert gas fusion thermal conductivity method (conventional method) (GB/T 20124-2006, ISO 15351.1999, IDT) YB/T 4149 casting tube round YB/T 5137 and a high-pressure hot-rolled seamless steel tube round forged

3 Classification and designation

3.1 part by manufacturing seamless steel tube is divided into two, and its category code as follows. a) hot rolling (extrusion, top, forging, expanded) steel, code-named W-H; b) cold drawn (rolled) steel, code is W-C. 3.2 seamless steel pipe section into two categories according to size accuracy, and its category code as follows. a) General level precision, code-named PA; b) High precision, code-named PC. 3.3 The following codes apply to this section. The outer diameter D (unless otherwise specified nominal outer diameter or the outer diameter is calculated, that is calculated nominal diameter or outer diameter) The wall thickness S (unless otherwise specified nominal wall thickness or the minimum wall thickness, that is, the nominal wall thickness or the minimum wall thickness) Smin minimum wall thickness 3.4 Steel grades representative of nuclear power use by the first Pinyin capital letters (HD) and chemical composition. For example. HD15Ni1MnMoNbCu among them. HD --- "nuclear power" Pinyin first in capital letters; 15Ni1MnMoNbCu --- "15" represents the average carbon content (in very few dollars), followed by the alloying elements and representative of a predetermined symbol Arabic numerals average content of alloying elements.

4 ordering content

Pipe ordered under this part of the contract or order should include the following. a) standard number; b) the product name; c) steel grades; d) Order number (or the total weight of the total length); e) Dimensions; f) Special requirements. 5 size, shape, weight and tolerance 5.1 diameter and wall thickness 5.1.1 steel pipe according to nominal diameter and nominal wall thickness of the delivery of steel pipe nominal outside diameter and nominal wall thickness should be consistent with GB/T 17395 of. 5.1.2 According to the demand side, the supply and demand sides negotiated, according to nominal diameter steel pipe wall thickness and minimum nominal inside diameter and nominal wall thickness or other foot Delivery inch standard way. According to the demand side, the supply and demand sides negotiated, can supply steel pipe size to the provisions of GB/T 17395. NOTE. unless otherwise specified nominal wall thickness or the minimum wall thickness, this portion of the "thickness" is the nominal wall thickness or the minimum wall thickness; unless otherwise specified or nominal outside diameter meter Operators diameter, this portion of the "OD" is the nominal outer diameter or the outer diameter is calculated. 5.2 the diameter and wall thickness tolerance 5.2.1 steel pipe according to nominal diameter and nominal wall thickness delivery, the nominal outside diameter and nominal wall thickness tolerances shall comply with the requirements in Table 1. Outer diameter steel pipe according to the nominal wall thickness and minimum delivery, the nominal outer diameter tolerance shall be as specified in Table 1, the wall thickness deviation should be allowed In accordance with Table 2. Co specified in Table 1. 5.2.2 if the buyer does not indicate the size of the steel pipe in the contract tolerance level, pipe diameter and wall thickness tolerance should be consistent normal grade Provisions. According to the buyer requirements, the agreement between manufacturer, and in the contract, other than a predetermined size may be supplied in Table 1 and Table 2 Steel tolerance Pipe or other pipe internal diameter tolerances. Table 1 nominal diameter steel pipe wall thickness and the nominal allowable deviation in mm Classification code size steel pipe manufacturing methods Tolerance Ordinary Level (PA) Advanced (PC) W-H Hot-rolled (extrusion, top, Forging) steel pipe Nominal diameter (D) Nominal wall thickness (S) ≤54 > 54 ≤4.0 > 4.0 to 20 > 20 D < 219 D≥219 ± 0.40 ± 0.30 ± 1% D ± 0.75% D ± 0.45 ± 0.35 + 12.5% S -10% S ± 10% S ± 10% S ± 7.5% S + 12.5% S -10% S ± 10% S W-H thermal expansion pipe Nominal diameter (D) All ± 1% D ± 0.75% D Nominal wall thickness (S) All + 18% S-10% S + 12.5% S -10% S W-C Cold drawn (rolled) Steel Pipe Nominal diameter (D) Nominal wall thickness (S) ≤25.4 ± 0.15 - > 25.4 ~ 40 ± 0.20 - > 40 ~ 50 ± 0.25 - > 50 ~ 60 ± 0.30 - > 60 ± 0.5% D - ≤3.0 ± 0.3 ± 0.2 > 3.0 ± 10% S ± 7.5% S Table 2 Steel minimum wall thickness tolerance in mm Wall thickness range of manufacturing methods classification code Tolerance Ordinary level Advanced W-H hot rolling (extrusion, top, forging) steel Smin≤4.0 +0.9 0 +0.7 Smin > 4.0 + 25% Smin 0 + 22% Smin W-C cold drawn (rolled) steel Smin≤3.0 +0.6 0 +0.4 Smin > 3.0 + 20% Smin 0 + 15% Smin 5.3 length 5.3.1 usual length 5.3.1.1 length of the steel pipe is generally 4000mm ~ 12000mm. 5.3.1.2 negotiated by supply and demand, and in the contract, the delivery can be greater than the length or shorter than 4000mm 12000mm but not less than 3000mm pipe. But shorter in length than 4000mm 3000mm shorter than the steel pipe, which should not exceed the number of total batch delivery Steel 5% of the amount. 5.3.2 Length length and double length 5.3.2.1 According to the demand side, the supply and demand sides negotiated, and in the contract, the pipe length can be cut to length or double length delivery. 5.3.2.2 steel press cut lengths delivery, the length tolerance should meet the following requirements. When a) D≤406.4mm, + 15 0 mm; b) D > When 406.4mm, + 20 0 mm. 5.3.2.3 steel press delivery double length, each double length should leave a notch below a predetermined margin. When a) D≤159mm, cutout balance 5mm ~ 10mm; b) 159 < When D≤406.4mm, the balance of the cutout 10mm ~ 15mm; c) D > When 406.4mm, the balance of the cutout 15mm ~ 20mm. 5.4 curvature 5.4.1 curvature per meter pipe shall be as follows. a) S≤15mm time, no greater than 1.5mm/m; b) 15mm < When S≤30mm, no greater than 2.0mm/m; c) S > When 30mm, is not greater than 3.0mm/m. 5.4.2 D≥127mm steel pipe, the entire length of the bend should not be more than 0.10% of the total length of the pipe. 5.5 roundness and uneven thickness According to the demand side, the supply and demand sides negotiated and specified in the contract, roundness and wall thickness of the pipe shall not exceed the outside diameter and are not 80% of the wall thickness tolerances. 5.6 tip shape Pipe and pipe end faces at both ends should be perpendicular to the axis, the cutout burrs should be removed. 5.7 Weight 5.7.1 Delivery Weight Pipe according to nominal diameter and a nominal wall thickness and a nominal inside diameter or the nominal wall thickness of delivery, delivery by actual weight of steel, also according to theoretical weight delivery. Pipe according to the nominal outside diameter and minimum wall thickness delivery, delivery according to the actual weight of the steel pipe; supply and demand sides negotiated and specified in the contract, also steel Theoretical weight may be delivered. 5.7.2 Calculation of the theoretical weight Theoretical calculation of the weight of steel required to GB/T 17395 (density of steel according to 7.85kg/dm3). Press nominal inside diameter and nominal wall thickness of the delivery pipe, the outer diameter should be calculated using theoretical weight calculation, which is calculated according to the nominal outside diameter and a nominal inside diameter Calculated thickness value outside diameter; wall thickness by the minimum delivery pipe, should be calculated theoretical weight average wall thickness, which is based on the wall thickness and the average thickness The maximum allowed deviation of the calculated average value and the minimum value of the wall thickness. 5.7.3 Weight Tolerance According to the demand side, the supply and demand sides negotiated, and in the contract, the deviation of the actual weight with the theoretical weight of the delivery pipe shall comply with such Under the provisions. a) a single steel tube. ± 10%; b) minimum batch of steel 10t. ± 7.5%.

6 Technical Requirements

Grades and chemical composition of the steel 6.1 6.1.1 Steel grade and chemical composition (melting component and the finished component) shall be as specified in Table 3. Related terms of chemical composition of the finished product, the definition and determination method shall conform to GB/T 222 a. Unless smelting needs, without the need to agree, not allowed to add elements not mentioned in Table 3 in the steel. The manufacturer shall take all appropriate Measures to prevent other scrap materials and production processes used to weaken the mechanical properties of steel and fitness elements into steel. 6.1.2 According to the demand side, the supply and demand sides negotiated, and in the contract, in addition to the elements specified in Table 3, also finished chemical analysis It includes boron, lead, arsenic and mercury, and provides the analysis result to the demand side. 6.1.3 grade steel part with other standard steel grades similar to the control in Appendix A. Table 3 Steel grade and chemical composition of the No. Grade sampling Chemical composition (mass fraction) /% C Si Mn Cr Mo V Ni Altot Cu Nb N P S no greater than HD12Cr2Mo Melting ingredient 0.08 0.15 0.50 0.40 0.70 2.00 2.50 0.90 1.20 0.08 0.30 - ≤ 0.20 - - 0.0250.015 End product ingredient 0.07 0.16 0.54 0.37 0.73 1.90 2.60 0.86 1.24 0.08 0.30 - ≤ 0.20 - - 0.0300.020 HD15Ni1Mn- MoNbCu Melting ingredient 0.10 0.17 0.25 0.50 0.80 1.20 0.15 0.30 0.25 0.40 0.02 1.00 1.30 0.050 0.50 0.80 0.015 0.025 0.020 0.0250.015 End product ingredient 0.09 0.18 0.21 0.54 0.76 1.24 0.14 0.35 0.21 0.44 0.02 0.95 1.35 0.055 0.45 0.85 0.010 0.030 0.020 0.0300.020 Note. Altot refers to the aluminum content. 6.2 Manufacturing Methods 6.2.1 Manufacturing Outline Former steel pipe manufacturing, the manufacturer shall establish manufacturing outline, which should include various manufacturing and inspection process in the manufacturing process. 6.2.2 steel smelting method 6.2.2.1 outer arc furnace steel should be applied and refined by the refining outside the vacuum refining process, or added oxygen converter and vacuum refining furnace, Or ESR smelting. When the demand side to specify a particular method of smelting, should be specified in the contract. 6.2.2.2 negotiated by supply and demand, and specified in the contract, other smelting methods can be more demanding. 6.2.3 and tube manufacturing method of claim 6.2.3.1 tube should continuous casting, molding or hot-ro......
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