zinc coated steel pipe

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


Chemical Composition of Steel Base

Grade (Base Material)C (Carbon)Mn (Manganese)P (Phosphorus)S (Sulfur)Si (Silicon)Cu (Copper)
ASTM A53 Grade B (Common)≤ 0.30≤ 1.20≤ 0.05≤ 0.045-≤ 0.40
Q235B (GB/T 3091)0.12-0.200.30-0.70≤ 0.045≤ 0.045≤ 0.30≤ 0.30
S235JR (EN 10255)≤ 0.17≤ 1.40≤ 0.045≤ 0.045--
API 5L Grade B≤ 0.28≤ 1.20≤ 0.030≤ 0.030--

Typical Composition of Zinc Coating

Coating Type / ProcessZn (Zinc)Al (Aluminum)Pb (Lead)Fe (Iron)Other
Regular Hot-Dip Galvanizing≥ 99.5≤ 0.15≤ 0.20≤ 0.03Traces
Zn-Al Hot-Dip, e.g., Galvalume®Bal. (55% Zn)55% Al-≤ 0.031.5% Si
Electrogalvanized≥ 99.0--≤ 0.50-


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