Mechanical properties of galvanized sheet

Mechanical properties of galvanized sheet

(1) Tensile test:

Galvanized sheet steel index (Unit :g/m2)

JISG3302 Generation number Z12 Z18 Z22 Z25 Z27 Z35 Z43 Z50 Z60

Galvanizing quantity 120 180 220 250 270 350 430 500 600

ASTMA525 generation A40 A60 G60 G90 G115 G140 G165 G185 G210

Galvanizing amount 122 183 183 275 351 427 503 564 640

(1) Performance index: Generally speaking, only structural, tensile and deep drawing galvanized sheet with tensile performance requirements. The structural galvanized sheet requires yield point, tensile strength and elongation. Only elongation is required for stretching. 

(2) Test method: The same as the general test method of thin steel plate, see the relevant standards provided in "8" and the test method standard listed in "ordinary carbon steel sheet".

(2) Bending test:

The bending test is the main item to measure the process performance of sheet metal, but the standards of different countries have different requirements for all kinds of galvanized sheet. The American standard does not require bending and tensile test except for structural grade. In Japan, bending tests are required except for structural grade, architectural corrugated plate and general corrugated plate.

Requirements: The general requirements of galvanized sheet bending 180, the outer surface shall not be separated from the zinc layer, the plate base shall not have cracking and fracture.