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GB/T 3623-2022 English PDF (GBT3623-2022)

GB/T 3623-2022 English PDF (GBT3623-2022)

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GB/T 3623-2022: Titanium and titanium alloy wire

This document specifies the classification and marking, technical requirements, test methods, inspection rules, signs, packaging, transportation, storage and accompanying documents and purchase orders of titanium and titanium alloy wires. This document applies to round wires for the production of structural parts, electrode materials and welding materials.
GB/T 3623-2022
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.150.50
CCS H 64
Replacing GB/T 3623-2007
Titanium and titanium alloy wire
ISSUED ON. JULY 11, 2022
IMPLEMENTED ON. FEBRUARY 01, 2023
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Classification and marking... 6
5 Technical requirements... 7
6 Test methods... 10
7 Inspection rules... 10
8 Signs, packaging, transportation, storage and accompanying documents... 12 9 Content of purchaser order... 13
Titanium and titanium alloy wire
1 Scope
This document specifies the classification and marking, technical requirements, test methods, inspection rules, signs, packaging, transportation, storage and accompanying documents and purchase orders of titanium and titanium alloy wires (hereinafter referred to as the wires).
This document applies to round wires for the production of structural parts, electrode materials and welding materials.
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 228.1, Metallic materials - Tensile testing - Part 1.Method of test at room temperature
GB/T 3620.1, Designation and composition of titanium and titanium alloys GB/T 3620.2, Titanium and titanium alloys - Permissible variations of chemical composition for wrought product analysis
GB/T 4698 (all parts), Methods for chemical analysis of titanium sponge, titanium and titanium alloys
GB/T 5168, Microstructure and macrostructure examination for titanium and titanium alloys
GB/T 6611, Terminology and metallographs for titanium and titanium alloys GB/T 8180, Wrought titanium and titanium alloy products packing, marking, transporting and storing
GB/T 38982, Method of measuring shape and dimension for wrought titanium and titanium alloy products
GB/T 39799-2021, Dimensions, shape, weight and tolerances of titanium and titanium alloy bars and wires
YS/T 1262, Method for chemical analysis of titanium sponge, titanium and titanium 6 Test methods
6.1 Chemical composition
The chemical composition analysis of the product is carried out according to the provisions of GB/T 4698 (all parts) or YS/T 1262.Arbitration analysis is carried out in accordance with the provisions of GB/T 4698 (all parts).
6.2 Dimensions and allowable deviations
The measurement of the dimensions of the product and allowable deviations shall be carried out in accordance with the provisions of GB/T 38982.
6.3 Tensile properties
The tensile properties test at room temperature of the product is carried out in accordance with the provisions of GB/T 228.1.The original gauge length L0 of the specimen shall meet the following requirements.
- When the diameter is less than 4.0mm, L0=50mm;
- When the diameter is not less than 4.0mm, L0=4d0.
6.4 Macrostructure
The macrostructure inspection of the product is carried out in accordance with the provisions of GB/T 5168.
6.5 Appearance quality
The appearance quality of the product is carried out by the method of visual inspection. 7 Inspection rules
7.1 Inspection and acceptance
7.1.1 The products shall be inspected by the supplier or a third party. 7.1.2 The purchaser may inspect the products received in accordance with the provisions of this document. When the inspection results do not conform to the provisions of this document or the purchase order, it shall be submitted to the supplier in writing and resolved through negotiation between the supplier and the purchaser. Objections belonging to dimensions as well as their allowable deviations and appearance quality shall be raised within one month from the date of receipt of the product. Objections belonging to chemical composition, tensile properties and macrostructure shall be raised within three months from the date of receipt of the 7.5.3 In the tensile property test, when the test result of one specimen fails, double specimens shall be taken from the batch of products for re-inspection. When there is still one specimen that fails to pass the re-inspection, the batch of products is determined as rejected. However, the supplier can inspect roll by roll (disc, piece). The qualified ones will be re-batched and delivered.
7.5.4 When the macrostructure inspection result fails, the batch of products is determined as rejected.
8 Signs, packaging, transportation, storage and
accompanying documents
8.1 Signs
8.1.1 Product signs
Labels or signs shall be attached to the products that have passed the inspection. At least the following information shall be indicated.
a) Manufacturer's name and trademark;
b) Designation;
c) Specification;
d) State;
e) Batch number;
f) Reference to this document.
8.1.2 Packaging mark
The packaging mark of the product shall comply with the provisions of GB/T 8180. 8.2 Packaging, transportation and storage
The packaging, transportation and storage of the product shall comply with the provisions of GB/T 8180.
8.3 Accompanying documents
Each batch of products shall have accompanying documents. In addition to supplier information, product information, reference to this document, date of manufacture or date of packaging, it shall also include.
a) Quality certificate, including.

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