The galvanized steel pipe is based on the welded pipe and plated a layer of zinc on the surface. The purpose is to prevent rust and prevent corrosion. Each length is 6m. Galvanized pipes are divided into two types: hot -dip galvanized and electroplating (also known as cold galvanized).
The weight coefficient of galvanized steel pipe
Nominal wall thickness (MM): 2.0, 2.5, 2.8, 3.2, 3.5, 3.8, 4.0, 4.5.
Coefficient parameters (C): 1.064, 1.051, 1.045, 1.040, 1.036, 1.034, 1.032, 1.028.
Note: Steel mechanical properties are important indicators to ensure the final performance (mechanical performance) of steel. It depends on the chemical composition and thermal treatment system of steel. In the steel pipe standard, according to different use requirements, stretching performance (tensile strength, yield strength or yield point, elongation point) and hardness, toughness indicators, and high and low temperature performance required by users.
Steel number: Q215A; Q215B; Q235A; Q235B.
Test pressure value /MPA:D10.2-168.3mm is 3MPa; D177.8-323.9mm is 5MPa
The production step of galvanized steel pipe
The process process is: black tube -alkaline washing -water washing -pickling -water drift -immersion -drying -hot immersion galvanized -external blow -air -cooled -water cooling -water cooling --Prillida -Rinse of Water -Test -Weight -Enter the warehouse.
