Hot Dipped Zinc Coated Seamless and Welded Pipe ASTM A53 Gr. A Gr. B
Galvanized pipe ordered under ASTM A53 Specification shall be coated with zinc inside and outside by the hot-dip process. The zinc used for coating shall be any grade of zinc conforming to Specification B6.
Weight (Mass) per Unit Area of Coating Test- The weight (mass) per unit area of zinc coating shall be determined by stripping tests in accordance with Test Method A90/A90M.
Test Specimens-Test specimens for determination of weight (mass) per unit area of coating shall be taken, one from each end of one length of galvanized pipe selected at random from each lot of 500 lengths, or fraction thereof, of each size.
A53 comes in two grades and three types. A53 can be produced as a seamless product (A53 Grade A Type S (Seamless) and A53 Grade B Type S (Seamless) or as a welded product (A53 Grade B Type E (Welded), A53 Grade A Type E (Welded) or A53 Grade A Type F (Welded)). The ASTM A53 specification is for steel pipe of welded or seamless construction, and available in black or hot-dipped zinc-coating.
A53 does not require nor prohibit any specific process (such as hot finished or cold drawn or other process) in the production of seamless pipe. Typical uses of A53 pipe are structural applications or for low pressure fluid systems such as air, gas, and water.
Standards: ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
Chemical Requirements:
| Grade | Chemical Composition, % |
| Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Copper (Cu) | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Vanadium (V) |
| max | max | max | max | max | max | max | max |
| Grade A | 0.25 | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Grade B | 0.30 | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
Mechanical Properties:
| Grade | Mechanical Properties |
| Tensile strength, min: (Mpa) | Yield strength, min: (Mpa) |
| Grade A | 330 | 205 |
| Grade B | 415 | 240 |
Application:
Steam, water, gas and air lines;
Refinery, Boiler and Mechanical equipment manufacture;
Structure construction; drilling, ship building and etc.
End: plain end, beveled end, threaded
End protection: plastic caps
Product Tags:
|
|
Hot Dipped Zinc Coated Seamless And Welded Pipe ASTM A53 Gr. A Gr. B Images
|
