Skip to product information
1 of 12

PayPal, credit cards. Download editable-PDF & invoice in 1 second!

GB/T 2520-2017 English PDF (GBT2520-2017)

GB/T 2520-2017 English PDF (GBT2520-2017)

Regular price $145.00 USD
Regular price Sale price $145.00 USD
Sale Sold out
Shipping calculated at checkout.
Quotation: In 1-minute, 24-hr self-service. Click here GB/T 2520-2017 to get it for Purchase Approval, Bank TT...

GB/T 2520-2017: Cold-reduced electrolytic tinplate [Steel-plate and steel-strip]

This Standard specifies the classification and codes, ordering content, dimensions, shapes, weights and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality certification of cold-reduced electrolytic tinplate.
GB/T 2520-2017
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.50
H 46
Cold-reduced Electrolytic Tinplate
ISSUED ON. SEPTEMBER 7, 2017
IMPLEMENTED ON. JUNE 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
3. No action is required - Full-copy of this standard will be automatically and immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Application Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 7
4 Classification and Codes ... 9
5 Ordering Content ... 10
6 Dimensions, Shapes, Weights and Tolerances ... 10
7 Technical Requirements ... 13
8 Test Methods ... 18
9 Inspection Rules ... 20
10 Packaging, Marking and Quality Certification ... 20
11 Cross-reference of temper degree codes of domestic and overseas
standards ... 20
12 Precautions for use of tinplate ... 21
Annex A (Normative) Method for Marking of Thick Face of Differentially Coated Electrolytic Tinplate ... 22
Annex B (Informative) Spring-back Test Method ... 23
Annex C (Normative) Table of Conversion between HR15Tm and HR30Tm . 25 Annex D (Informative) Cross-reference of Temper Degree Codes of Domestic and Overseas Standards ... 26
Annex E (Informative) Precautions for Use of Tinplate ... 27
Annex F (Normative) Determination of Lead Content in the Coating of Tinplate ... 28
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 2520-2008, Cold-reduced Electrolytic Tinplate. Compared with GB/T 2520-2008, the major technical changes are as follows. -- the thickness of single cold-reduced products in the application scope is modified into 0.14 mm ~ 0.80 mm (see Chapter 1; Chapter 1 of Edition 2008);
-- the classification method is modified, the passivation method is modified into the surface treatment method and the method of no treatment is added (see Table 1; Table 1 of Edition 2008);
-- the definition of ?€?chemical treated electrolytic tinplate?€? is deleted (see 3.7 of Edition 2008);
-- the solutions for chemical passivation and electrochemical passivation intrusion are modified (see 3.7 and 3.8; 3.8 and 3.9 of Edition 2008);
-- the content ?€?Other thickness increments of advancement may also be used for the nominal thickness as agreed on by the supplier and the purchaser?€? (see 6.1.1); -- the types and chemical compositions of black plate steels of cold-reduced electrolytic tinplate are added; the method standards for the testing of chemical compositions are added simultaneously in the normative references (see Article 2 and Table 2);
-- the requirements for the black plates, and the limits of poisonous or harmful elements, of tin coating of the tinplate which is used to make containers (containing or not containing organic coating) in direct contact with foods, pharmaceuticals, beverages and so on, are added (7.1.3 and 7.3.5);
-- the provisions on the minimum average tin coating weight when an order is placed in accordance with the tin coating weight not specified, are added (7.3.1); -- the requirement ?€?the rounding interval of the value of single point test on each surface is 0.05 g/m2?€? (see 7.3.3);
-- the surface condition of double cold-reduced products, S, is added (see Table 8); -- the provision that the equipment measuring hardness shall be provided with a diamond anvil block, is added (see 8.5);
-- Annex B ?€?Spring-back Test Method?€? is modified (see Annex B; Annex B of Edition 2008);
-- Annex E ?€?Precautions for Use of Tinplate?€? is added;
Cold-reduced Electrolytic Tinplate
1 Application Scope
This Standard specifies the classification and codes, ordering content, dimensions, shapes, weights and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality certification of cold-reduced electrolytic tinplate. This Standard applies to single cold-reduced electrolytic tinplate of nominal thickness 0.14 mm ~ 0.80 mm and double cold-reduced electrolytic tinplate of nominal thickness 0.12 mm ~ 0.36 mm (hereinafter referred to as tinplate).
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this Standard.
GB/T 222, Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.4, Iron, Steel and Alloy ?€? Determination of Manganese Content ?€? Potentiometric or Visual Titration Method
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 223.18, Methods for Chemical Analysis of Iron, Steel and Alloy ?€? The Sodium Thiosulfate Separation Iodimetric 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 223.26, 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 223.31, Iron Steel and Alloy ?€? Determination of Arsenic Content ?€? Distillation- Molybdenum Blue Spectrophotometric Method
GB/T 223.57, Methods for Chemical Analysis of Iron,Steel And Alloy ?€? The Extraction-Absorption Catalytic Polarographic Method for the Determination of Cadmium Content
GB/T 223.59, Iron, Steel and Alloy ?€? Determination of Phosphorus Content ?€? Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony
Phosphomolybdate Blue Spectrophotometric Method
GB/T 223.60, Methods for Chemical Analysis of Iron, Steel and Alloy ?€? The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content
GB/T 223.63, Methods for Chemical Analysis of Iron, Steel and Alloy ?€? The Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content
GB/T 223.64, Iron, Steel and Alloy ?€? Determination of Manganese Content ?€? Flame Atomic Absorption Spectrometric Method
GB/T 228.1, Metallic Materials ?€? Tensile Testing ?€? Part 1. Method of Test at Room Temperature
GB/T 230.1, Metallic Materials ?€? Rockwell Hardness Test ?€? Part 1. Test Method (Scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 247, General Rule of Package, Mark and Certification for Steel Plates (Sheets) and Strips
GB/T 708, Dimension, Shape, Weight, and Tolerance for Cold-Rolled Steel Plate GB/T 728-2010, Ingot Tin
GB/T 1838, Test Methods of Tin Coating Mass for Electrolytic Tinplate
GB/T 4336, Carbon and Low-alloy Steel ?€? Determination of Multi-element Contents ?€? Spark Discharge Atomic Emission Spectrometric Method (Routine Method) GB/T 8170, Rules of Rounding off for Numerical Values and Expression and Judgement of Limiting Values
GB/T 17505, Steel and Steel Products ?€? General Technical Delivery Requirements GB/T 20066, Steel and Iron ?€? Sampling and Preparation of Samples for the Determination of Chemical Composition
GB/T 20123, Steel and Iron ?€? Determination of Total Carbon and Sulfur Content Infrared Absorption Method after Combustion in an Induction Furnace (Routine Method)
continuous annealing; CA
The process in which cold-reduced steel strip is annealed in the unfolding state and controlled atmosphere, in accordance with the set cycles of time and temperature. 3.7
chemical passivation
Steel strip is immersed in a chemical solution after electrolytic tinning and treated by chemical passivation without electrifying.
3.8
electrochemical passivation
Steel strip is immersed in a chemical solution after electrolytic tinning and treated by cathodic electrochemical passivation by electrifying.
3.9
low chromate passivation
One type of chemical passivation treatment, including the target value of the chrom...

View full details