GB/T 33960-2017Aluminum and aluminum alloy welding wires for pressure vessel (English PDF)

3.2 Chemical composition

Chemical compositions of 1188, 5183A, 5356A wires shall comply with provisions of Table 2. Chemical composition of wires of other designations shall comply with provisions of GB/T 3190. When there are special requirements for mass fraction of other impurity elements, they shall be indicated in order sheet (or contract) after agreed by supplier and purchaser via negotiation.

4.3 Welding performance

Test method for deposited metal X-ray flaw-detection of coil wire and hollow coil wire is in accordance with Annex B. Test method for plate stack welding of straight wire shall be in accordance with Annex C.

4.4 Appearance quality

Visually inspect or use 20-times magnifying glass to check wire's appearance quality. In arbitration, use 20-times magnifying glass.

4.5 Wire coil

Use measuring tool that can guarantee corresponding precision to measure size deviation of wire coil. Visually inspect other items.

4.6 Coiling requirements

Coiling requirements shall be visually inspected. When necessary, use measuring tool of corresponding precision to measure.

5.1 Inspection and acceptance

5.1.1 Wires shall be inspected by supplier to ensure wire quality comply with provisions of this Standard and order sheet (or contract). Fill in quality certificate.

5.1.2 Purchaser inspect received wires according to provisions of this Standard.

When inspection results fail to meet this Standard or order sheet (or contract), it shall propose to supplier in written form. It shall be solved by supplier and purchaser via negotiation. Objection about appearance quality or size deviation shall be proposed within one month since wires are received. Objection about other performance shall be proposed within three months since wires are received. When arbitration is required, it shall be entrusted to a third organization that is recognized by both parties to conduct arbitration. Conduct sampling together at purchaser's site.

5.2 Batching

Wires shall be submitted for acceptance in batches. Each batch shall be composed by wires of same designation, of same melting time and of same dimensions. Batch weight is not limited.

after being agreed by supplier and purchaser, this batch of wires shall be inspected by supplier box by box (roll). The product inspected as accepted shall be delivered.

5.6.4 When appearance quality of any wire fails, this box (roll) of wires shall be rejected. But after being agreed by supplier and purchaser, this batch of wires shall be inspected by supplier box by box (roll). The product inspected as accepted shall be delivered.

5.6.5 When any wire coil fails, this batch shall be rejected. But after being agreed by supplier and purchaser, this batch of wires shall be inspected by supplier box by box. The product inspected as accepted shall be delivered.

5.6.6 When coiling requirements fail, this box (roll) shall be rejected.

7.1 Marks

7.1.1 Product marks

Print following marks (or stick labels) on outer packaging of wires that are inspected as accepted, indicating:

a) designation;

b) dimensions;

c) reference to this Standard;

d) certification mark;

e) product's melting time number, lot number;

f) inspection seal of supplier's quality inspection department (or signature or seal of quality inspection personnel);

g) use permanent mark to mark wire's alloy designation on end of each straight wire.

7.1.2 Packaging box marks

Packing box marks of wires shall comply with provisions of GB/T 3199.

7.2 Packaging, transport, storage

Use aluminum foil vacuum packaging or plastic bag vacuum packaging to pack wires first. Then load into paper packaging boxes. Condition for storage is: humidity is not greater than 60%. Or packaging is according to the one agreed by supplier and purchaser. Other packaging, transport, storage requirements are in accordance with GB/T 3199.

7.3 Quality certificate

Each batch of wires shall be attached with product quality certificate, indicating:

a) supplier's name;

b) product's name;

c) designation and dimensions;

d) lot number;

e) melting time number;

f) net weight, or number of boxes, pieces;

g) reference to this Standard;

h) certification mark;

i) inspection results of each analysis item and inspection seal of supplier's quality inspection department (or inspection mark);

j) packaging date (or exit-factory date);

k) period of use (indicating that immediately use after it is unsealed; use within one year in sealed state).