Product description
Galvanized Steel 0.18mm-20mm thick galvanized steel sheet 2mm thick
Hot dip galvanized steel sizes galvanized sheet metal roll
| product name | Galvanized steel sheets/Galvalume steel sheet |
| Thickness | 0.13mm-5.0mm |
| Width | 600mm-1500mm,762mm,914mm,1000mm,1200mm,1219mm,1250mm |
| zinc coating | 40g,60g, 80g, 90,100g, 120g, 140g,180g, 200g, 250g, 275g and so on. |
| Standard | ASTM, AISI, DIN, GB |
| Material | SGCC,DC51D,DX51D,DX52D,SGCD,Q195,Q235,SGHC,DX54D, S350GD, S450GD, |
| Spangle | zero spangle,regular spangle or normal spangle |
| surface treatment | chromated and oiled, chromated and non-oiled |
| Packing | export standard. |
| Payment | T/T, L/C or DP |
| min order | 25 tons (one 20ft FCL) |
| Quality | soft or hard quality |
Product chemical component
Galvanized Steel 0.18mm-20mm thick galvanized steel sheet 2mm thick
Hot dip galvanized steel sizes galvanized sheet metal roll
| bse metal type | Grade | CHEMICAL COMPOSITION % |
| C | Si | Mn | P |
| cold rolled steel sheet | DC51D+Z (St01Z, St02Z, St03Z) , DC51D+ZF | ≤0.10 | - | ≤0.50 | ≤0.035 |
| DC52D+Z (St04Z), DC52D+ZF | ≤0.08 | - | ≤0.45 | ≤0.030 |
| DC53D+Z (St05Z), DC53D+ZF | ≤0.08 | - | ≤0.40 | ≤0.030 |
| DC54D+Z (St06Z), DC54D+ZF | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 |
| DC56D+Z (St07Z), DC56D+ZF | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 |
| hot rolled steel sheet | DD51D+Z (St01ZR, St02ZR) | ≤0.10 | - | ≤0.50 | ≤0.035 |
| DD54D+Z (St06ZR) | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025
|
(1) surface state: The surface state of galvanized sheet is
different because of the different treatment methods in the coating
and plating process, such as ordinary zinc flower, fine zinc
flower, flat zinc flower, zinc free flower and phosphating surface.
The German standard also provides for surface grades.
(2) Galvanized plate should have a good appearance, shall not have
harmful defects to the use of the product, such as no plating,
holes, cracks and scum, more than thick plating, abrasion, chromic
acid dirt, white rust, etc. Foreign standards are not very clear
about the specific appearance defects. Some specific defects should
be specified in the contract when ordering.
(1) Tensile test:
(1) Performance indicators: generally speaking, only structural,
tensile and deep drawing galvanized sheet has tensile performance
requirements. The structure of galvanized sheet requires a yield
point, tensile strength and elongation, etc. Elongation is required
only for stretching. For specific values, see relevant product
standards in "8" of this section;
② Test method: the same as the general sheet steel test method, see
the relevant standards provided by "8" and the test method
standards listed in "ordinary carbon steel sheet steel".
(2) Bending test:
The bending test is the main item to measure the technical
performance of thin plate, but the requirements of various
galvanized sheet are not consistent, the American standard in
addition to the structural level, the rest do not require bending
and tensile test. And Japan in addition to structural level,
building corrugated plate and general corrugated plate, the rest
are required to make bending test.
Requirements: General requirements galvanized sheet bending 180,
the outer surface of the zinc layer shall not be separated, plate
base shall not crack and fracture.
