What is G90 material?
The designation G90 is simply a coating thickness of 0.9 oz/ft2 as specified in A653 and is equivalent to 0.45 oz/ft2 or about 0.76 mils per side (it is important to state per side because the oz/ft2 method takes into consideration the coating thickness on both sides of the steel, such as in the case of sheet steel).
What is ASTM A 653?
ASTM A 653/A 653M—08 Specification for Steel Sheet, Zinc-coated Galvanized or Zinc-iron Alloy-coated Galvannealed by the Hot-dip Process (PDF Download) This specification covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths.
What are the different grades of galvanized steel?
Galvanized Specifications
| KIND OF PRODUCT | |
|---|---|
| A 523-90* | Drawing Quality |
| A 642-90* | Drawing Quality – Special Killed |
| A 446-76 | Structural Quality |
| A 653-96 | Lockforming Quality, Commercial Steel, Type A, B, C Grade-80, Structural Steel Grade-33, Grade-37 |
What is a G90 finish?
G-90 and G-140 are coating designations for Galvanized Steel. For example, G-90 designates a zinc coating of .90 oz/square foot, while G-140 designates a zinc coating of 1.40 oz/square foot. These coating weights are a total for both sides of the strip.
Is code a GI sheet?
5.1 The base metal of plain galvanized sheets and coils shall conform to IS 1079 or IS 513 as the case may he. S.I.I When it is not possible to test the base metal before galvanizing, the base metal may be tested after stripping off the zinc coating.
What is the mechanical properties of galvanized steel?
It has a characteristic yield strength of 520 to 610 MPa and a characteristic tensile strength of 530 to 620 MPa. This steel is commonly used in automotive parts, shelving, and of late for purlins.
What is the composition of galvanized steel?
Galvanized steel is a carbon steel that has been coated with zinc. The most common method of zinc coating is the hot-dip process. The hot-dip process consists of submerging the carbon steel into a molten zinc bath (approximately 680 degrees Fahrenheit).
What is G90 galvanized steel?
Mild Steel Sheet Galvanized G90 is a thin, flat sheet of galvanized G90 Mild Steel. Hot-dip galvanizing is the process of coating iron or steel with a thin zinc layer, by passing the steel through a molten bath of zinc at a temperature of around 860 °F (460 °C).
What is the thickness of an ASTM A653 G90 sheet?
ASTM A653 G90 refers to the galvanized steel sheet, the material grade is G90 (according to ASTM A653 standard), thickness 3.2 mm. The American standard is special. There are both metric weight units (g/m2) such as Z90 and British weight units (oz/ft2) such as G90. The weight difference between the two is about 3 times.
What kind of steel is used in ASTM A653?
ASTM A653 Galvanized Steel ASTM A653 Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths.
Which is the latest ASTM steel sheet standard?
ASTM A653/A653M-2018 is the latest updated ASTM Standard which lays down the Standard Specification for Steel Sheet, Zinc-Coated ( Galvanized) or Zinc-Iron Alloy- Coated (Galvannealed) by the Continuous Hot-Dip Galvanized Process. Chemical Composition ( values are in % ) Max.
What is the coating thickness of a G90?
The designation G90 is simply a coating thickness of 0.9 oz/ft 2 as specified in A653 and is equivalent to 0.45 oz/ft 2 or about 0.76 mils per side (it is important to state per side because the oz/ft 2 method takes into consideration the coating thickness on both sides of the steel, such as in the case of sheet steel).