GB/T 5310-2023 PDF EnglishUS$605.00 · In stock · Download in 9 seconds
GB/T 5310-2023: Seamless steel tubes and pipes for high pressure boiler 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 5310: Historical versions
GB/T 5310-2023: Seamless steel tubes and pipes for high pressure boiler---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/GBT5310-2023GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.75 CCS H 48 Replacing GB/T 5310-2017 Seamless steel tubes and pipes for high pressure boiler Issued on: SEPTEMBER 07, 2023 Implemented on: APRIL 01, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 10 4 Classification and code... 10 5 Order content... 11 6 Size, shape, weight and allowable deviation... 11 7 Technical requirements... 16 8 Test sample... 37 9 Test methods... 38 10 Inspection rules... 39 11 Packaging, marking and quality certificate... 40 Appendix A (Informative) Optional special requirements for ordering... 41 Appendix B (Informative) Comparison of designations in relevant domestic and foreign standards... 42 Appendix C (Informative) High temperature specified plastic elongation strength of steel pipes... 43 Appendix D (Informative) Recommended data for 100 000 h lasting strength of steel pipes... 44 Bibliography... 471 ScopeThis document stipulates the classification, code, order content, size, shape, weight, technical requirements, samples, test methods, inspection rules, packaging, marking and quality certificate of seamless steel tubes and pipes for high pressure boiler. This document applies to the manufacture of seamless steel tubes and pipes (hereinafter referred to as steel pipes) for boilers and pipelines of high pressure and above. It also applies to seamless steel tubes and pipes for other high-temperature and pressure- bearing equipment as a reference.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 222, Permissible tolerances for chemical composition of steel products 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 - Chrom 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 223.14, Methods for chemical analysis of iron, steel and alloy - The N- benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content GB/T 223.18, Methods for chemical analysis of iron steel and alloy - The sodium thiosulfate separation iodimetric method for the determination of cupper 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 method 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 223.26, Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method GB/T 223.29, Iron, steel and alloy - Determination of lead content - Carrier precipitation-xylenol orange spectrophotometric method GB/T 223.30, Methods for chemical analysis of iron, steel and alloy - The arsenazo Ⅲ spectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid3 Terms and definitionsTerms and definitions determined by GB/T 30062 are applicable to this document.4 Classification and code4.1 The seamless steel tubes and pipes in this document are divided into two categories according to the product manufacturing method. The categories and codes are as follows. a) Hot-rolled (extruded, expanded) steel tubes and pipes, code-named W-H; b) Cold-drawn (rolled) steel tubes and pipes, code-named W-C. 4.2 For the purposes of this document, the following symbols apply. D outside diameter (if not specified, including nominal outside diameter and/or calculated outside diameter, in millimeters) Dc calculated outside diameter (the outside diameter value calculated based on the sum of the nominal inside diameter and the nominal wall thickness, in millimeters) d nominal inside diameter S wall thickness (if not specified, including nominal wall thickness and/or average wall thickness, in millimeters) Sc average wall thickness (average of the maximum and minimum wall thickness calculated based on the minimum wall thickness and its allowable deviation, in millimeters) Smin minimum wall thickness5 Order content5.1 The contract for ordering steel tubes and pipes according to this document includes the following contents. a) product name; b) number of this document; c) steel designation or unified digital code; d) ordering quantity (total weight or total length); e) dimensions. 5.2 The supplier and the buyer can negotiate to determine the optional special requirements listed in Appendix A, and indicate them in the contract for ordering steel pipes according to this document.6 Size, shape, weight and allowable deviation6.1 Outside diameter and wall thickness 6.1.1 Unless otherwise specified in the contract, steel tubes and pipes shall be delivered according to the nominal outside diameter and the nominal wall thickness. According to the requirements of the buyer and through negotiation between the supplier and the buyer, steel tubes and pipes can be delivered according to the nominal outside diameter and minimum wall thickness, nominal inside diameter and nominal wall thickness, or other size specifications. 6.1.2 The nominal outside diameter and wall thickness of steel tubes and pipes shall comply with the provisions of GB/T 17395.As required by the buyer, and negotiated between the supplier and the buyer, steel tubes and pipes with dimensions other than those specified in GB/T 17395 can be supplied. When steels tubes and pipes are delivered according to the nominal inside diameter and nominal wall thickness, the size specifications shall be determined by negotiation between the supplier and the buyer. 6.1.3 When steel tubes and pipes are delivered according to the nominal outside diameter and nominal wall thickness, the allowable deviations of the nominal outside diameter and nominal wall thickness shall comply with the provisions of Table 1. 6.1.4 When steel tubes and pipes are delivered according to the nominal outside diameter and minimum wall thickness, the allowable deviation of the nominal outside diameter shall comply with the provisions of Table 1, and the allowable deviation of the wall thickness shall comply with the provisions of Table 2. 6.1.5 When steel tubes and pipes are delivered according to the nominal inside diameter and nominal wall thickness, the allowable deviation of the nominal inside diameter of hot-expanded steel tubes and pipes is ±0.75%d, and the allowable deviation of the nominal inside diameter of the other steel tubes and pipes is ±1%d. The allowable deviation of the nominal wall thickness shall comply with the provisions of Table 1. 6.1.6 Where the buyer does not indicate the allowable deviation level of the size of steel tubes and pipes in the contract, the allowable deviation of the outside diameter and wall thickness of steel tubes and pipes shall comply with the requirements for the ordinary grade. According to the requirements of the buyer, as negotiated between the supplier and the buyer, and indicated in the contract, steel tubes and pipes with allowable deviations in dimensions other than those specified in Table 1 and Table 2, or steel tubes and pipes of other allowable deviations in inside diameter, can be supplied. 6.2 Length 6.2.1 Normal length 6.2.1.1 The random length of the steel tubes and pipes is 4 000 mm ~ 12 000 mm. 6.2.1.2 As negotiated between the supplier and the buyer, and indicated in the contract, steel tubes and pipes with a length of more than 12 000 mm or less than 4 000 mm but not less than 3 000 mm can be delivered; the number of steel tubes and pipes with a length less than 4 000 mm but not less than 3 000 mm shall not exceed 5% of the total quantity of this batch delivered. 6.2.2 Specific length and multiple length 6.3 Curvature 6.3.1 The curvature per meter of steel tubes and pipes shall comply with the following regulations. a) When S≤15 mm, not greater than 1.5 mm/m; b) When 15 mm < S ≤ 30 mm, not greater than 2.0 mm/m; c) When S >30 mm, not greater than 3.0 mm/m. 6.3.2 For steel tubes and pipes with D ≥127 mm, the curvature in total length shall not be greater than 0.10% of the length of the steel pipe. 6.3.3 According to the requirements of the buyer, if it is negotiated between the buyer and the supplier AND indicated in the contract, other provisions may be imposed for the curvature per meter and the curvature in total length of the steel pipe. 6.4 Out-of-roundness and unevenness in wall thickness As required by the buyer, after it is negotiated between the supplier and the buyer AND indicated in the contract, the out-of-roundness and wall unevenness of steel tubes and pipes shall not exceed 80% of the outside diameter (inside diameter) and wall thickness tolerance, respectively. 6.5 End shape The end faces of the steel tube shall be perpendicular to the axis of the steel tube; the burrs of the cut shall be removed. 6.6 Weight 6.6.1 Delivery weight 6.6.1.1 When steel tubes and pipes are delivered according to the nominal outside diameter and nominal wall thickness or the nominal inside diameter and nominal wall thickness, steel tubes and pipes can be delivered according to the actual weight or the theoretical weight. 6.6.1.2 When steel tubes pipes are delivered according to the nominal outside diameter and minimum wall thickness, steel tubes and pipes shall be delivered according to the actual weight; as negotiated between the supplier and the buyer, AND indicated in the contract, steel tubes and pipes can also be delivered according to the theoretical weight.7 Technical requirements7.1 Steel designation and chemical composition 7.1.1 The steel designation and chemical composition (smelting composition) shall comply with the requirements in Table 1.Refer to Appendix B for comparison of designations in relevant domestic and foreign standards. 7.1.2 The residual element (smelting component) content in steel shall comply with the requirements in Table 5. 7.1.3 The chemical composition of finished steel tubes and pipes of 10Cr9Mo1VNbN (A31108), 08Cr9W3Co3VNbCuBN (A32088), and 07Cr23Ni15Cu4NbN (S30989) shall comply with the provisions of Table 4.The allowable deviation of chemical composition of finished steel tubes and pipes of other designations shall comply with the provisions of Table 6.The relevant terms, definitions and determination methods of chemical composition of finished products shall comply with the provisions of GB/T 222. 7.2 Manufacturing method 7.2.1 Smelting method of steels 7.2.1.1 Quality carbon steel and alloy steel shall be treated by using electric arc furnace plus out-of-furnace refining and vacuum refining, or oxygen converter plus out-of- furnace refining and vacuum refining, or electroslag remelting method. 7.2.1.2 Stainless (heat-resistant) steel shall be smelted by using electric arc furnace plus out-of-furnace refining, or converter plus out-of-furnace refining, or electroslag remelting method. 7.2.1.3 Other smelting methods with higher requirements may be adopted after negotiation between the supplier and the buyer and as indicated in the contract. When the buyer specifies a certain smelting method, it shall be stated in the contract. 7.2.2 Manufacturing methods and requirements for tube blanks 7.2.2.1 Tube blanks can be manufactured by continuous casting, die casting or hot rolling (forging). 7.2.2.2 Continuously cast tube blanks shall comply with the provisions of YB/T 4149, in which the grades of low-magnification structural defects such as central cracks, middle cracks, subcutaneous cracks and subcutaneous bubbles shall not be greater than grade 1 respectively, or shall comply with other higher quality requirements approved by relevant parties; hot-rolled (forged) tube blanks shall comply with the requirements of YB/T 5137; die-cast tube blanks (steel ingots) can be implemented with reference to the regulations for hot-rolled (forged) tube blanks. 7.2.3 Manufacturing method of steel tubes 7.2.3.1 Steel tubes and pipes of the designation 08Cr18Ni11NbFG shall be manufactured by cold-drawn (rolled) seamless methods, and other steel tubes and pipes shall be manufactured by hot-rolled (extruded, expanded) or cold-drawn (rolled) seamless methods. 7.2.3.2 For steel tubes and pipes directly rolled from continuous cast or die-cast steel billets, the total elongation coefficient of processing deformation shall not be less than 3.0.For steel tubes and pipes directly rolled by electroslag ingots, the total elongation coefficient of processing deformation shall not be less than 2.0. 7.3 Delivery state 7.3.1 Quality carbon steel and alloy steel tubes and pipes shall be delivered in a heat- treated state. 7.3.2 Stainless (heat-resistant) steel tubes and pipes shall be delivered in a heat-treated, pickled and passivated state. All steel tubes and pipes that have been wholly ground, bored or heat-treated in protective atmosphere can be delivered without pickling.8 Test sample8.1 Tensile test sample 8.1.1 For steel tubes and pipes with D < 219 mm, the tensile test shall be conducted along the longitudinal direction of the steel pipe. 8.1.2 For steel tubes and pipes with D ≥ 219 mm, when the size of the steel pipe allows, a circular cross-section sample with a diameter of 10 mm shall be taken transversely along the steel pipe for the tensile test; when the size of the steel pipe is not sufficient to intercept a 10 mm sample, use the larger possible transverse circular cross-section sample with a diameter of 8 mm or 5 mm; when the size of the steel pipe is not sufficient to cut a 5 mm circular cross-section sample, samples shall be taken along the longitudinal direction of the steel pipe for the tensile test. Transverse circular cross- section test pieces shall be taken from un-flattened samples. 8.2 Impact test sample For the impact test, priority shall be given to intercepting the sample along the transverse direction of the steel pipe. When the transverse sample cannot be intercepted, the sample shall be intercepted along the longitudinal direction of the steel pipe. Regardless of whether it is cut transversely or longitudinally along the steel pipe, the impact test sample shall be a standard size sample with a thickness of 7.5 mm or a thickness of 5 mm, whichever is possibly larger. 8.3 Bending test sample 8.3.1 Sample preparation The sample for the bending test shall be taken transversely along one end of the steel pipe, and the preparation of the sample shall comply with the provisions of GB/T 232. When the sample is taken, the forward bending sample shall be as close as possible to the outer surface, and the reverse bending sample shall be as close as possible to the inner surface. There shall be no obvious scars and other defects on the surface of the sample under bending and tension deformation. 8.3.2 Sample size The cross-sectional size of the sample after processing is 12.5 mm × 12.5 mm or 25 mm × 12.5 mm (width × thickness); the four corners on the cross section shall be processed into rounded corners, and the radius of the rounded corners shall not be greater than 1.6 mm; the length of the sample shall not be greater than 150 mm.9 Test methods9.1 Sampling for chemical composition analysis of steel tubes shall comply with the rules of GB/T 20066.Chemical composition analysis shall usually comply with the provisions of GB/T 4336, GB/T 11170, GB/T 20123, GB/T 20124, GB/T 32548, YB/T 4395, YB/T 4396 or other general methods; arbitration shall comply with the regulations of GB/T 223.5, GB/T 223.9, GB/T 223.11, GB/T 223.12, GB/T 223.14, GB/T 223.18, GB/T 223.19, GB/T 223.23, GB/T 223.25, GB/T 223.26, GB/T 223.29, GB/T 223.30, GB/T 223.31, GB/T 223.36, GB/T 223.38, GB/T 223.40, GB/T 223.43, GB/T 223.47, GB/T 223.50, GB/T 223.59, GB/T 223.63, GB/T 223.65, GB/T 223.78, GB/T 223.80, GB/T 223.84, GB/T 223.85, GB/T 223.86, GB/T 32548, YB/T 4395, and YB/T 4396. 9.2 When an external surface hardness test is required, unless otherwise specified in the contract, the external surface hardness test shall comply with the following provisions. a) Steel tubes and pipes of designation 12Cr1MoVG with an outside diameter of not less than 406 mm and a wall thickness of not less than 70 mm, one by one; b) Steel tubes and pipes of designations 10Cr9Mo1VNbN, 10Cr9MoW2VNbBN, 08Cr9W3Co3VNbCuBN with a wall thickness not less than 25 mm, one by one; c) Steel tubes and pipes of other designations and specifications, 2 steel pipes selected from each batch (when there is only 1 steel pipe in a batch, 1 steel pipe selected). 9.3 The size and shape of the steel pipe shall be measured one by one by gauges that meet the accuracy requirements. 9.4 The inner and outer surfaces of the steel pipe shall be inspected visually under full lighting conditions, and the straight depth shall be measured using measuring tools that meet the accuracy requirements. 9.5 The sampling methods and test methods for other inspection items of steel tubes shall meet the requirements of Table 12. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 5310-2023 be delivered?Answer: The full copy PDF of English version of GB/T 5310-2023 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 5310-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5310-2023_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 5310-2023 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 5310-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5310-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 5310-2023?A step-by-step guide to download PDF of GB/T 5310-2023_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 5310-2023". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
