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GB/T 8890-2015Seamless copper alloy tube for condenser and heat-exchanger (English PDF)

热交换器用铜合金无缝管

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 11, 2015

Implementation date

April 1, 2016

Scope

GB/T 8890-2015 is the English-translated version of 热交换器用铜合金无缝管.

GB/T 8890-2015 is the Chinese national specification for the seamless copper alloy tubes from which condensers and heat exchangers are built.

It fixes the grades, states and dimensions of the tube in Table 1, with the wall-thickness and length tolerances and a high-precision wall-thickness class, and the tests that prove the product: tensile testing, flattening, drift expanding, hydrostatic and pneumatic leak testing, eddy-current examination, grain size, residual-stress detection and a carbon-film check of the tube surface.

It then sets the batching and acceptance rules, the retest on double specimens when a property fails, the marking, packing, transport, storage and quality certificate, and the items an order sheet must state.

It covers tubes for thermal power generation, shipbuilding, offshore oil, machinery and chemical plant. It replaces GB/T 8890-2007, was issued on 11 September 2015 and has applied since 1 April 2016.

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Document preview — GB/T 8890-2015

National Standard of the People's Republic of China

ICS: 77.150.30
Classification: H 62
Replacing: GB/T 8890-2007

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword3
1 Scope5
2 Normative References5
3 Requirements6
4 Test Methods12
5 Inspection Rules13
6 Mark, Package, Transportation, Storage and Quality Certificate15
7 Order Sheet (or Contract) Content15

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard replaced GB/T 8890-2007 Seamless Copper Alloy Tube for Heat- Exchanger; compared with GB/T 8890-2007, this Standard has the major changes as follows.

--- Added alloy code;

--- Modified alloy grade and state as per the new national standard; ' --- Added corresponding provisions of HSn72-1(C44300), BFe10-1.4-1(C70600), BFe30-0.7(C71500) tubes;

--- Deleted specific provisions of HSn70-1B, HSn70-1AB chemical compositions; which are modified into "the chemical compositions of tubes shall conform to the corresponding grade provisions of GB/T 5231";

--- Modified the tube wall-thickness allowable deviation; increased the requirements for the high-precision-level wall-thickness;

--- Modified the tube length allowable deviation;

--- Added "tube outline dimension test method shall be performed as per the provisions of GB/T 26303.1";

--- Added tube pressure test;

--- Increased YS/T 482, YS/T 483 in chemical analysis method;

--- Modified the tensile specimen as per the provisions of GB/T 228.1-2010;

--- Added the provisions that "sampling method shall be performed as per the provisions of YS/T 668; while the preparation of mechanical property and technological property specimens shall be performed as per the provisions of YS/T 815".

1 Scope

This Standard specifies the requirements, test methods, inspection rules, marking, package, transportation, storage, order sheet (or contract), and the like contents of seamless copper alloy tube for condenser and heat-exchanger.

This Standard is applicable to the seamless copper alloy tubes used by thermal power generation, ship, offshore oil, machinery, chemical and other industrial sectors to manufacture heat-exchanger and condenser.

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) are applicable to this document.

GB/T 228.1-2010 Metallic Materials - Tensile Testing - Part 1: Method of Test at Room Temperature

GB/T 241 Metal Materials Tube - Hydrostatic Pressure Test

GB/T 242 Metal Materials Tube - Drift Expanding Test

GB/T 246 Metal Materials Tube - Flattening Test

GB/T 2828.1 Sampling Procedures for Inspection by Attributea - Part 1: Sampling Schemes Indexed By Acceptance Quality Limit (AQL) for Lot-by-Lot Inspection

GB/T 5121 (All Parts) Methods for Chemical Analysis of Copper and Copper Alloys

GB/T 5231 Designation and Chemical Composition of Wrought Copper and Copper Alloys

GB/T 5248 Electromagnetic (Eddy-Current) Examination of Copper and Copper Alloy Seamless Tube

GB/T 8888 Wrought Heavy Non-Ferrous Metal Products - Packing, Marking, Transporting and Storing

GB/T 10567.1 Wrought Copper and Copper Alloys - Detection of Residual Stress - Mercury Nitrate Test

GB/T 10567.2 Wrought Copper and Copper Alloys - Detection of Residual Stress -Ammonia Test

GB/T 18033-2007 Seamless Copper Tubes for Water and Gas

GB/T 26303.1 Measuring Method for Dimensions and Shapes of Wrought Copper and Copper Alloy - Part 1: Tube

YS/T 347 Copper and Copper Alloys - Estimation of Average Grain Size

YS/T 482 Method 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 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 Grade, state, specification

The grade, state, and specification of tube shall conform to the provisions of Table 1.

4 Test Methods

4.6 Non-destructive test

4.6.1 The tube eddy current test shall be performed as per the provisions of GB/T 5248 or determined through the negotiation between the supplier and purchaser.

4.6.2 The tube hydrostatic test shall be performed as per the provisions of GB/T 241.

4.6.3 Tube pneumatic test

When taking the pneumatic test, the tube shall be connected with the gas source with pressure, keep the air with certain pressure within the tube; immerse the tube completely into the water, check whether there is bubbles in the tube.

4.7 Grain size

The tube grain size test shall be performed as per the provisions of YS/T 347.

4.8 Surface quality

4.8.1 The tube carbon film test method shall be performed with reference of Appendix A in GB/T 18033-2007.

4.8.2 The other surface quality problems of the tube shall be inspected through the visual observation.

5 Inspection Rules

5.1 Inspection and acceptance

5.1.1 The tube shall be inspected by the supplier's Technical Supervision Department; so that ensure the product quality conform to the provisions of this Standard and the order sheet (or contract); and fill in the quality certificate.

5.1.2 When receiving the product, the purchaser shall re-inspect the product as per the provisions of this Standard and order sheet (or contract); if the re-inspected results is not consistent with the provisions of this Standard or order sheet (or contract), it shall be proposed to the suppler in written form, and solved through the negotiation between the purchaser and supplier. The dispute on the surface quality and dimension deviation shall be proposed within 1 month since receiving the product; other quality disputes shall be proposed within 3 months since receiving the product. If arbitration is required, the sampling for arbitration shall be jointly performed by the supplier and purchaser.

5.2 Batch

The tube shall be proposed for inspection in batch; each batch shall consist of the products with the same grade, the same state and the same specification. Weight per Other surface quality a Sampling as per the provisions of GB/T 2828.1; Inspection Level-II or negotiated between the purchaser and supplier 3.9 4.8.2 a Acceptance Quality Limit AQL=4.

5.5 Judgment of inspection results

5.5.1 When the chemical composition is disqualified, then such batch of tubes shall be judged disqualified.

5.5.2 When the outline dimension and its allowable deviation and surface quality (excluding carbon film test) of the tube are disqualified, then such piece of tube is judged disqualified. When the number of disqualified tubes per batch exceed the acceptance quality limit, the howl batch of tubes are judged disqualified; or the supplier shall inspect the tubes piece by piece, only the qualified tubes can be delivered.

5.5.3 Where there is specimen disqualified in the mechanical property, technological property, residual stress, grain size and carbon film test; then take double number of specimens form such batch of tubes to perform the re-test (including the disqualified tubes in the previous test); if all tubes are qualified during the re-test period, then the whole batch of tubes are judged qualified. If there is still disqualified specimen in the re-test result, then such batch of tubes are judged disqualified; or supplier shall inspect the tubes piece by piece, only the qualified tubes can be delivered.

5.5.4 When non-destructive test is disqualified, such tube shall be judged disqualified.

6 Mark, Package, Transportation, Storage and Quality Certificate

The tube mark, package, transportation, storage and quality certificate shall conform to the provisions of GB/T 8888.

7 Order Sheet (or Contract) Content

The contents of ordering sheet (or contract) on purchasing the tubes listed in this Standard shall be as follows.

a) Product name;

b) Grade;

c) State; […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 5121

Cited by

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GB/T 16866-2026|GB/T 32468-2025|GB/T 46017-2025|GB/T 8891-2025|GB/T 11091-2024|GB/T 26311-2024

Editions of GB/T 8890

Edition	Title	Revision	Status
GB/T 8890-2015	Seamless copper alloy tube for condenser and heat-exchanger	current edition	Current
GB/T 8890-2007	Seamless copper alloy tube for condenser and heat-exchanger	previous edition	Superseded

This page sells the current edition, GB/T 8890-2015. Earlier editions are listed for reference only.

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