November 4, 2022
Mechanical properties of galvanized sheet:
(1) Tensile test:
(1) Performance index: Generally speaking, only structural, tensile and deep drawing galvanized sheet has tensile performance requirements. The structural galvanized sheet requires yield point, tensile strength and elongation, etc. Only elongation is required for stretching. For specific values, please refer to the relevant product standards in Section "8 ";
(2) Test method: The same as the general test method of thin steel plate, see the relevant standard provided in "8" and the test method standard listed in "ordinary carbon steel sheet".
(2) Bending test: Bending test is the main project to measure the technical performance of sheet metal, but the standards of different countries have different requirements for all kinds of galvanized sheet. The American standards do not require bending and tensile tests except for structural grades. In Japan, bending tests are required except for structural grade, architectural corrugated plate and general corrugated plate. Requirements: After the galvanized sheet is bent for 180 years, the outer surface shall not be separated from the zinc layer, and the substrate shall not be cracked and broken.
