Electroplating Galvanized Steel Tube

Product Description

Product nameGalvanized pipe
Raw materialCarbon steel/Zinc
TypeHot Dipped Steel Pipe/Pre Galvanized Steel Pipe
StandardASTM A53, A500, A36, A795; BS1387, EN10255; ISO65, ANSI C80, DIN2440, JIS G3444; GB/T3091, GB/T13793
GradeA53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
S355JR / A500 Grade B Grade C
Outer diameter21.3mm-660mm (1/2''-26')
Length5.8M/6M/11M or as customer needs
ShapeRound, Square, Rectangular, etc
Pipe endsPlain ends, Beveled ends, Threaded ends, Grooved ends, etc
CertificateAPI 5L, API 5CT, UL, FM, JIS, ISO
Supply ability70000 ton/month
Delivery timeStock size 10 days/customize size 15-25 days
Large quantity please contact with our sales person.
PackingA: plastic caps covered on both ends of pipes;
B: woven bag wrapped outside the pipes;
C: tied in bundle
ApplicationOil/gas/water fluid transportation or construction, hydraulic precision machinery parts/power/boiler/petrochemical/building
industry, etc
InspectionA: Baolai's test team inspect for every goods before shipment
B: Accept the third party to check the goods quantity and quality
MoqNormal size is 3 tons, please chat with us about your order


Typical Base Material Chemistry

Grade (Steel Base)C (Carbon)Mn (Manganese)P (Phosphorus)S (Sulfur)Al (Alt.)Ti (Titanium)
JIS G3141 SPCC (Cold Rolled)≤ 0.12≤ 0.50≤ 0.040≤ 0.040≥ 0.02 (Acid-Sol.)NA
ASTM A1008 CS Type B≤ 0.10≤ 0.60≤ 0.030≤ 0.0350.01–0.07NA
DC01 (EN 10130)≤ 0.12≤ 0.60≤ 0.045≤ 0.045NANA
SPHC (Hot Rolled, for thicker tubes)≤ 0.15≤ 0.60≤ 0.050≤ 0.050NANA

Typical Electrogalvanized Coating Composition

Coating Type / ProcessZn (Zinc)Fe (Iron)Ni (Nickel)Other Elements
Regular EG Coating≥ 99.0≤ 0.5NATrace (Cr from passivation)
Zn-Ni Alloy EG, 10-15% Ni85 – 90≤ 0.510 – 15NA
Zn-Fe Alloy EG, <1% Fe99 – 99.50.3 – 1.0NANA
Passivation Film--Cr³⁺ / Cr⁶⁺Zr, Ti, Si


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