This part of GB/T 5237 specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificate as well as content of order (or contract) of mill finish profiles for aluminium alloy extruded profiles for architecture.
This part is applicable to aluminium alloy hot-extruded profiles (not subject to surface treatment) for doors, windows, curtain walls and guardrails (hereinafter referred to as mill finish profiles).
Hot-extruded tube with the same application may also be implemented by reference to this part.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3190 Wrought aluminium and aluminium alloy - Chemical composition
GB/T 3199 Wrought aluminium and aluminium alloy products - Packing, marking, transporting and storing
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1: Test method
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 8005.1 Aluminium and aluminium alloys - Terms and definitions - Part 1: Product and method of processing and treatment
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 16865 Test pieces for tensile test for wrought aluminum and magnesium alloy products
GB/T 17432 Methods of sampling for analyzing the chemical composition of wrought aluminum and aluminum alloy
GB/T 20975 (All parts) Methods for chemical analysis of aluminium and aluminium alloys
YS/T 67 Wrought aluminium and aluminium alloy columniform ingots
YS/T 420 Aluminium alloys webster hardness standard test method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 8005.1 and the following apply.
3.1
exposed surfaces
surfaces of mill finish profiles corresponding to the visible positions of profiles being processed and assembled and installed on the building, including in an open or closed state
3.2
circumscribing circle
smallest circle being able to completely enclose the cross section of mill finish profiles As shown in Figure 1
GB/T 5237.1-2017 The following standards are cited：
GB/T 5237.1-2017 Cited by the following standards：
