PDF GB/T 33226-2016 English
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Aluminium and Aluminium Alloy Multiport Profiles for Heat Exchanger
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GB/T 33226-2016: PDF in English (GBT 33226-2016) GB/T 33226-2016
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
H 61
Aluminium and Aluminium Alloy
Multiport Profiles for Heat Exchanger
ISSUED ON: DECEMBER 13, 2016
IMPLEMENTED ON: NOVEMBER 01, 2017
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Requirements ... 5
4 Test method ... 11
5 Test rules ... 13
6 Marking, packaging, transportation, storage and quality certificate ... 16
7 Order form (or contract) contents ... 17
Appendix A (Informative) Example of the profile cross section ... 19
Aluminium and Aluminium Alloy
Multiport Profiles for Heat Exchanger
1 Scope
This Standard specifies the requirements, test methods, test rules and marking,
packaging, transportation, storage, quality certificate and order form (or
contract) contents of aluminium and aluminium alloy multiport profiles for heat
exchanger.
This Standard applies to aluminum and aluminum alloy multiport profiles for
heat exchangers (hereinafter referred to as profiles) of which a single channel
hydraulic diameter is greater than 1.0 mm.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB/T 2523, Measuring method of surface roughness and peak count for
cold-rolled metal sheet (strip)
GB/T 3190, Wrought aluminum and aluminum alloy. Chemical composition
GB/T 3199, Wrought aluminium and aluminium alloy products. Packing,
marking, transporting and storing
GB/T 7999, Optical emission spectrometric analysis method of aluminum
and aluminum alloys
GB/T 8170, Rules of rounding off for numerical values & expression and
judgment of limiting values
GB/T 12608, Thermal spraying - Wires, rods and cords for flame and arc
spraying - Classification and technical supply condition
GB/T 12689, Methods for chemical analysis of zinc and zinc alloys
GB/T 14846, Tolerances on dimensions and form of aluminium and
aluminium alloy extruded profiles
The roll-delivered profile, of which the grade is 1050, the status is H112 and the
section code is YST02010001, is marked as:
MPF GB/T 33226-1050H112 YST02010001
Example 2:
The profile, of which the grade is 3102, the state is H112, zinc sprayed, the
section code is YST02010002, and the length is 685.0 mm, is marked as:
MPF GB/T 33226-3102H112ASZ YST02010002×685
3.2 Raw material
3.2.1 Round ingot
The low-magnification structure of the round ingot shall not have bright crystals
and looseness; the dimensional deviation shall comply with the provisions of
YS/T 67; the purity shall comply with the Class-II regulations of GB/T 32186-
2015.
3.2.2 Wire blank
The continuously-extruded wire blank shall comply with the provisions of YS/T
848.
3.2.3 Zinc wire
The chemical composition of the surface-sprayed zinc wire shall comply with
the provisions of grade-Zn99.99 in GB/T 12608.
3.3 Chemical composition
The chemical composition of the profile shall comply with the provisions of GB/T
3190.
3.4 Dimensional deviation
3.4.1 Cross-section dimensions
The dimensional deviation of the profile cross-section shall comply with the
requirements of Table 4.
4.2 Chemical composition
4.2.1 The analysis method of chemical composition shall comply with
requirements of GB/T 20975 or GB/T 7999; the arbitration analysis shall adopt
the methods which are specified in GB/T 20975.
4.2.2 Perform routine chemical analysis only on the numerically specified
elements other than those in “Aluminum” and “Other” of corresponding grades
in GB/T 3190. When the mass fraction of the non-routine analysis element is
suspected to exceed the limit value of this Standard, the producer shall analyze
these elements.
4.2.3 The “Al” content is calculated according to the method which is specified
in GB/T 3190. When the “Al” content is calculated, take the sum of the analytical
values of the conventional analytical elements and the suspected excess
unconventional analytical elements as the “sum of elemental content”.
4.2.4 The determination of analysis value is based on the rounding comparison
method; the value rounding rules shall be carried out in accordance with the
relevant provisions of GB/T 8170; the rounding digit shall be consistent with the
limit digits which are specified in GB/T 3190.
4.3 Dimensional deviation
The tendon thickness, side wall thickness, plane wall thickness, angle and arc
of the profile shall be measured by an image measuring instrument; other
dimensions shall be measured according to GB/T 14846.
4.4 Tensile mechanical properties at room temperature
The test method of vertical stretching of the profile at room temperature shall
be carried out in accordance with provisions of GB/T 16865.
4.5 Zinc spraying amount
The measurement method of surface zinc spraying amount of the profile is as
specified in GB/T 16921; during the measurement, take the average value of
the five points which are uniformly distributed in the width direction on each
measuring surface (accurate to 0.1 g/m2).
4.6 Salt spray corrosion resistance
The salt spray corrosion resistance of the profile is in accordance with the
provisions of Appendix D of GB/T 33230-2016.
4.7 Pressure resistance
The test method of burst pressure of the profile is carried out according to the
method in GB/T 15560.
4.8 surface roughness
The surface roughness is measured according to the provisions of GB/T 2523;
for the untreated surface, test Rz value; for the zinc-sprayed surface, test Ra
value. The measurement trace shall include the entire width range of the upper
and lower surfaces of the product; take the maximum value as the
measurement result.
4.9 Appearance quality
Visually inspect the appearance quality under natural scattered light. When the
defect depth cannot be determined, it is available to adopt the grinding method
and the slitting method and use the instrument and equipment of corresponding
precision to perform the measurement.
5 Test rules
5.1 Inspection and acceptance
5.1.1 The profile shall be inspected by the supplier to ensure that the profile
quality complies with the requirements of this Standard and the order form (or
the contract); the supplier shall fill in the quality certificate.
5.1.2 The buyer shall inspect the received profiles in accordance with the
provisions of this Standard. If the test result is inconsistent with the provisions
of this Standard and the order form (or the contract), a written form shall be
submitted to the supplier; the issue shall be settled by negotiation between the
supplier and the buyer. Objections of appearance quality and dimensional
deviation shall be filed within one month from the date of receipt of the profile;
objections of other performances shall be filed within 3 months from the date of
receipt of the profile. Arbitration, if required, may be carried out by an
organization which is recognized by both the supplier and the buyer; the
sampling shall be jointly done on the buyer’s side.
5.2 Batch
Profiles shall be submitted for acceptance in batches. Each batch shall consist
of profiles of the same grade, state, section code, and film code; the weight of
each batch shall not be limited.
5.3 Weight
The profiles shall be weighed on the scales.
5.4 Inspection items
repeated tests. If all the repeated test results are qualified, the batch of profiles
is judged to be qualified. If the result of zinc spraying amount of any sample is
still unqualified in the repeated test, judge the batch to be unqualified.
5.6.5 When the salt spray corrosion resistance of any sample is unqualified,
judge the batch to be unqualified.
5.6.6 When the result of pressure resistance of any sample is unqualified, take
double the number of samples from the batch of profiles to perform repeated
tests. If all the repeated test results are qualified, the batch is judged to be
qualified. If the result of pressure resistance of any sample is still unsatisfactory
in the repeated test, then, judge the batch to be unqualified.
5.6.7 When the result of surface roughness of any sample is unqualified, take
double the number of samples from the batch of profiles to perform repeated
tests. If all the repeated test results are qualified, the batch is judged to be
qualified. If any sample is still unqualified in the repeated test result, judge the
batch to be unqualified.
5.6.8 When the appearance quality of any profile is unqualified, judge the coil
(roll) of profile to be unqualified.
6 Marking, packaging, transportation, storage and
quality certificate
6.1 Marking
6.1.1 Product marking
The packaging of the qualified profile shall be printed with markings (or labeling)
of the following contents:
a) the inspection stamp of the supplier's quality inspection department (or the
signature or stamp of the quality inspection personnel);
b) grade, status and cross-section code, film code of the surface-treated
profile;
c) product batch number or date of manufacture;
d) quantity and net weight.
6.1.2 Package marking
The package marking of the profile shall comply with the provisions of GB/T
3199.
6.2 Packaging
The profiles shall be packaged in paper or paper tape in bundles; an appropriate
amount of desiccant shall be placed in the package for moisture protection; the
rolls shall be protected by padding or foam. Others are in accordance with the
provisions of GB/T 3199. The packaging mode and method which is different
from GB/T 3199 shall be agreed upon by the supplier and the buyer, and shall
be indicated in the order form (or contract).
6.3 Transportation and storage
The transportation and storage of the profiles shall comply with the provisions
of GB/T 3199.
6.4 Quality certificate
Each batch of profiles shall be accompanied by a product quality certificate,
which indicates:
a) the name of the supplier;
b) product name:
c) grade, status, cross-section code, film code;
d) product batch number or date of manufacture;
e) net weight or number of pieces;
f) various of analysis and test results;
g) the inspection stamp of the supplier's quality inspection department;
h) code of this Standard;
i) Date of packaging (or date of manufacture).
7 Order form (or contract) contents
The order form (or contract) that orders the products which are listed in this
Standard shall include the following:
a) product name;
b) grade;
c) status;
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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