• Follow us

ASTM A53 Galvanized Steel Tube

ASTM A53 galvanized steel tube. Galvanized steel tube is one of our advantage products. The zinc coating thickness grade can be done as per customer's request. The maximum value can be greater than 610g/m2.

Description

ASTM A53 galvanized steel tube


Specification of ASTM A53 galvanized steel tube


ASTM A53: seamless and welded black and hot-dipped galvanized steel pipe


There are 3 types in ASTM A53 standard.

Type F—Furnace-butt-welded, continuous welded Grade A

Type E—Electric-resistance-welded, Grades A and B

Type S—Seamless, Grades A and B


Composition, %Type S(SMLS), Type E(ERW)
Type F(furnace-welded)
Grade AGrade BGrade A
C, max0.250.300.30

Mn, max

0.951.201.20
P, max0.05
S, max0.045
Cu, max(1)0.40
Ni, max(1)0.40
Cr, max(1)0.40
Mo, max(1)0.15
V, max(1)0.08
Tensile strength, MPa, min330415330
Yield strength, MPa, min205240205

(1) The total composition for these five elements shall not exceed 1.00 %.


Description of ASTM A53 galvanized steel tube


Galvanized steel tube ordered under the specification shall be coated with zinc inside and outside by the hot-dip process.

The weight of zinc coating: not less than 0.55kg/m2 on average 

                                             not less than 0.49kg/m2 for either of speciments 


Process of hot galvanizing of ASTM A53 galvanized steel tube

black part inspection——bridging——degrease——rinsing——pickling——cleaning——plating assistant dipping——dry by hot air——HDG——cooling——passivation & rinsing——unloading——inspection and  repair——packing


production.jpg



Zinc coating thickness grade of ASTM A53 galvanized steel tube

coating grademilsoz/ft2
μmg/m2
351.40.835245
451.81.045320
502.01.250355
552.21.355390
602.41.460425
652.61.565460
753.01.775530
803.11.980565
853.32.085600
1003.92.3100705

Remark: The value in μm are based on the coating grade. The other values are based on conversions using the following formulas: mils=μmX0.03937; oz/ft2=μmX0.02316; g/m2=μmX7.067.


Inspection of ASTM A53 galvanized steel tube

(1) Zinc thickness measurement after production

measure zinc.jpg


(2) Inspection by customers

Main items: visual inspection, outer diameter, wall thickness, length, quantity, zinc thickness, and others.


inspection.jpg


Shipment of ASTM A53 galvanized steel tube

Galvanized steel tubes are arranged to delivery to customers by container. All tubes are stuffed into containers by professional equipments.

shipment.jpg



Hot Tags: astm a53 galvanized steel tube China, manufacturers, suppliers, factory, high quality, buy
Related Products

Feedback