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YS/T 649-2018 (YST 649-2018)

YS/T 649-2018_English: PDF (YST649-2018)
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BASIC DATA
Standard ID YS/T 649-2018 (YS/T649-2018)
Description (Translated English) (Copper and copper alloy extruded tube)
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Word Count Estimation 11,164
Date of Issue 2018-10-22
Date of Implementation 2019-04-01
Older Standard (superseded by this standard) YS/T 649-2007
Regulation (derived from) Ministry of Industry and Information Technology Announcement No.54 of 2018

YS/T 649-2018
YS
NONFERROUS INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.30
H 62
Replacing YS/T 649-2007
Extruded rod and bar of copper and copper alloys
ISSUED ON: OCTOBER 22, 2018
IMPLEMENTED ON: APRIL 01, 2019
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Requirements ... 6 
4 Test method ... 13 
5 Inspection rules ... 14 
6 Marking, packaging, transportation, storage, quality certification ... 16 
7 Contents of purchase order (or contract) ... 16 
Extruded rod and bar of copper and copper alloys
1 Scope
This standard specifies the requirements, test methods, inspection rules,
markings, packaging, transportation, storage, quality certificates and purchase
orders (or contracts) for extruded rod and bar of copper and copper alloys.
This standard applies to general-purpose round, rectangular (square),
hexagonal extruded rod and bar of copper and copper alloys (hereinafter
referred to as bars).
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1: Test method
GB/T 2828.1 Sampling procedures for inspection by attributes -Part 1:
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection
GB/T 3310 Ultrasonic testing method of copper and copper alloy bars
GB/T 5121 (all parts) Methods for chemical analysis of copper
GB/T 5231 Designation and chemical composition of wrought copper and
copper alloys
GB/T 8170 Rules of rounding off for numerical values & expression and
judgement of limiting values
GB/T 8888 Wrought heavy non-ferrous metal products -Packing, marking,
transporting and storing
GB/T 26303.2 Measuring methods for dimensions and shapes of wrought
copper and copper alloy - Part 2: Rod, wire and profile
GB/T 34505-2017 Copper and copper alloy materials - Tensile testing at
room temperature
YS/T 336 Method of fracture test for tube and rod of copper and copper
alloys, nickel and nickel alloys
YS/T 448 Copper and copper alloys inspection method of macrostructure for
cast and wrought products
YS/T 482 Methods for analysis of copper and copper alloys - The atomic
emission spectrometry
YS/T 483 Methods for analysis of copper and copper alloys - X-Ray
fluorescence spectrometric (wavelength dispersive)
YS/T 668 The sampling method of physical and chemical testing for copper
and copper alloys
YS/T 815 Preparation method of test pieces for mechanical and
technological properties of copper and copper alloys
3 Requirements
3.1 Product classification
3.1.1 Designation, code, status, specification
For the designation, code, status, and specifications of the product, they shall
meet the requirements of Table 1 and Table 2.
3.1.2 Marking examples
The product's marking is expressed in the order of product name, standard
number, designation or code, status, precision, specification. Examples of
markings are as follows:
Example 1: A fixed length round bar made of T2 (T11050), M30 (hot extruded)
state, high-precision, 40 mm diameter, 2000 mm length, is marked as:
Round bar YS/T 649-T2 M30 high-Φ40x2000
OR: round bar YS/T 649-T11050 M30 high-Φ40x2000
The surface quality of the bar shall be inspected visually.
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 The supplier’s technical supervision department shall conduct inspections,
to ensure that the product quality complies with the provisions of this standard
and the purchase order (or contract); meanwhile fill in the quality certificate.
5.1.2 The purchaser shall re-inspect the received product, in accordance with
the provisions of this standard and the purchase order (or contract). If the re-
inspection result does not conform to the provisions of this standard or the
purchase contract, it shall be submitted to the supplier, in written form, to be
settled, through negotiation, between the supplier and the buyer. For the
objections related to surface quality and dimensional deviation, it shall be filed,
within one month from the date of receipt of the product. For the objections
related to other properties, it shall be filed, within three months from the date of
receipt of the product. If arbitration is required, arbitration sampling shall be
conducted jointly by the supplier and the buyer.
5.2 Group-batching
The bars shall be submitted for acceptance in batches. Each batch shall be
composed of the products of the same designation, state, specification. The
mass of each batch shall not exceed 5000 kg.
5.3 Inspection items
5.3.1 Each batch of bars shall be inspected for chemical composition, external
dimensions, internal quality, surface quality.
5.3.2 Each batch of bars shall be inspected for mechanical properties (tensile
test or hardness test). Choose either the tensile test or the hardness test. If it is
not specified in the contract, the tensile test shall be carried out.
When selecting the tensile test, if the buyer also requires a hardness test AND
it is specified in the contract, the hardness test shall also be carried out. The
results of the hardness test are for reference only. When the hardness test is
selected, if the buyer also requires a tensile test AND it is specified in the
contract, a tensile test shall also be carried out. The results of the tensile test
are for reference only.
5.4 Sampling
Bar sampling shall meet the requirements of Table 8. The sampling method