GB/T 4437.1-2015 Translated English of Chinese Standard. (GBT 4437.1-2015, GB/T4437.1-2015, GBT4437.1-2015): Aluminium and aluminium alloy extruded tubes - Part 1: Seamless tubeshttps://www.chinesestandard.net, 8 févr. 2021 - 25 pages This Part of GB/T 4437 specifies requirements, test methods, inspection rules and marks, packaging, transportation, storage as well as quality certificate and order sheet (or contract) content for aluminium and aluminium alloy extruded seamless tubes. This Part is applicable to aluminium and aluminium alloy extruded seamless tubes for general industrial use. |
Table des matières
| 3 | |
Scope | 5 |
Requirements | 6 |
Test methods | 18 |
Inspection rules | 20 |
Marks packaging transportation storage and quality certificate | 24 |
Order sheet or contract content | 25 |
Expressions et termes fréquents
accordance with GB/T according to GB/T Allowa nce Allowa alloy tubes aluminium alloy extruded aluminium alloys GB/T aluminium and aluminium Appearance quality batch or heat Brinell hardness test chemical composition determined as rejected Elongation after breaking extracted tube heat treatment furnace Inspection method intergranular corrosion performance intermetallic compounds macrostructure specimen mass fraction meet the requirements melting order MPa Not less nce Allowa nce order sheet performance of T1 products are delivered properties at room quality certificate repeat the heat requirements of GB/T requirements of Table Resample to inspect Result of tensile Rockwell hardness test segregation or intermetallic sheet or contract spalling corrosion performance specimen fails Specimen state Wall strength Rp0.2 MPa stress corrosion performance supplier is allowed Supply state Specimen T62 specimen Table 3 continued tensile mechanical properties tensile test test at room tube per batch tubes is determined tubes shall meet tubes supplied ultrasonic flaw detection ultrasonic inspection wrought aluminium