ASTM A53 Galvanized Iron Pipe Schedule 40 Hot Rolled 2-70mm

ASTM A53 Schedule 40 Black Hot Rolled Prices Of Galvanized Pipe Steel Pipe

Technique:Hot Rolled

Product name:Seamless Steel Pipe

End protector:Plastic Pipe Cap

Type:Seamless Round Steel Pipe

Surface:Painting

Shape:Round Shape

Usage:Construction Structure

Steel Grade:GB JIS ASTM BS DIN

Production steps
The process flow is: black tube - alkali washing - water washing - pickling - water rinsing - dipping aid - drying - hot dip galvanizing - outside blowing - inside blowing - air cooling - water cooling - Passivation - water rinsing - inspection - weighing - storage.

Current national standard
National standard and size standard of galvanized pipe
GB/T3091-2015 Welded steel pipes for low pressure fluid transportation
GB/T13793-2016 Straight seam electric welded steel pipe
GB/T21835-2008 Welded steel pipe dimensions and weight per unit length

Hot dip galvanized pipe
Hot-dip galvanized pipe is to react the molten metal with the iron matrix and produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is the first pickling of the steel pipe. In order to remove iron oxide on the surface of the steel pipe, after pickling, it is cleaned by an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then enters the hot-dip galvanized steel pipe. Dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe undergoes a complex physical and chemical reaction with the molten bath to form a zinc-iron alloy layer with dense structure and corrosion resistance. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix, and has strong corrosion resistance.

FAQ

1. Can I get free samples?

A: Yes, we can provide you the free samples,but you need to bear their own delivery costs.

2. Can I request to change the form of packaging and transportation?

A: Yes, We can change the form of the packaqing and transportation according to your request but you have to bear their own costs incurred during this period and the spreads.

3. Can request to advance the shipment?

A:lt should be depends on whether there is sufficient inventory in our warehouse

4. Could you specially design and produce for cllents?

A: Sure. we have all kinds of professional enaineers.We can desian and produce special products according to customersrequest. Such as: special sizespecial control,OEM, etc.