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ASTM A500 Steel Pipe GI steel tube

    Payment Type: L/C,T/T,D/P,Paypal,Western Union
    Incoterm: FOB,CFR,CIF
    Min. Order: 5 Ton
    Delivery Time: 15 Days
Basic Info

Type: Welded

Certification: API, CE

Application: Gas Pipe

Section Shape: Round

Surface Treatment: Galvanized

Usage: Oil&Gas Well Drilling

Technique: ERW

Material: Carbon Steel, Q195, Q235, Q345

Size: 1/2"-24"

Thickness: 0.8mm-20mm

Length: 5.8m, 6m, 12m Or Random Length

Standard: BS1387:1985, ASTM A53 GR.A

Product Name: Class B Galvanized Round Welded Steel Pipe

Additional Info

Packaging: By Sea worthy packing

Productivity: 20000Ton/Year

Brand: CSTAR

Transportation: Ocean

Place of Origin: china

Supply Ability: 500Ton/Month

Certificate: CE

Product Description

ASTM A500 Steel Pipe GI SCH 40 steel tube

Galvanized Steel Pipe welded joint

Gi pipe Welded Steel Pipe chemical composition.

The steel plate and chemical composition of galvanized steel tube shall conform to the brand and chemical composition of the Steel Pipe used in GB/T3092.

2. Manufacturing method

The manufacturing method of Galvanized Iron Pipe (furnace welding or welding) is selected by the manufacturer. Hot dip galvanizing method is adopted.

3. Thread and pipe joint.

(a) Galvanized Gas Pipe with thread, thread should be made after galvanized. Thread should comply with YB 822.

(b) steel pipe joints shall conform to the provisions of YB 238; The joint of malleable cast iron pipe shall conform to the provisions of YB 230.

4. Mechanical properties of steel tube before galvanization should comply with GB 3092.

5. The uniform Galvanized Steel Pipe shall be tested for the uniformity of galvanized layer. The steel tube samples were impregnated 5 times in the copper sulfate solution without turning red (copper plating).

6. Cold bending test nominal diameter of no more than 50mm galvanized steel pipe shall be subjected to cold bending test. Bending Angle is 90 °, bending radius to diameter 8 times. When the test is not filled with filler, the weld should be placed on the outside or upper part of the bending direction. After the test, there should be no crack and zinc peeling.

7. Water pressure test should be carried out in Galvanized Gas Pipe, and eddy current test should be used instead of water pressure test. Test pressure or eddy current testing should be in accordance with GB 3092. The mechanical property of steel is an important index to ensure the final performance of steel.

gi pipe

galvanized steel pipe




1/8" -24" (5.15mm-714mm)

Wall Thickness


Class A-1, Class A, Class B, Class C, SCH20,SCH40,STD,XS,SCH80,SCH160,XXS


5.8M Length, 6M Length or 12M Length or as requested

Steel material

Q195 → SS330,ST37,ST42

Q235 → SS400,S235JR

Q345 → S355JR,SS500,ST52


ASTM A53, BS1387-1985, GB/T3091-2001,GB/T13793-92, GB/T6728-2002

Zinc Coating:


20μm ,40μm ,60μm,70μm,80μm


1)low pressure liquid, water, gas, oil, line pipe


3)fence, door pipe


1) Plain

2) Beveled

3) Thread with Coupling or cap

4) Chamfer

5) Groove

6) Screw

End protector

1) Plastic pipe cap

2) Iron protector

Surface Treatment

1) Bared

2) Black Painted (varnish coating)

3) Galvanized

4) Oiled

5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating.


Electronic Resistance Welded (ERW )

Electronic Fusion Welded (EFW)

Double Submerged Arc Welded (DSAW)

Welded Line Type


Section Shape



With Hydraulic Testing, Eddy Current , Infrared Test


1) Bundle,

2) Plastic waven Bags


1) 20'Container

2) 40' Container

3) Bulk carrier

Port of Shipment

Xingang Port, Tianjin, China

Date of Delivery

20 days after confirmation or According To The Quantity And Specification Of Each Order


L/C, T/T, DP

production processing for galvanized steel pipe

Galvanized steel pipe

comparison between standard

Product description for galvanized steel pipe

Inspection equipment for galvanized steel pipe

galvanized steel pipe

Welcome to your inquiry!

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Looking for ideal ASTM A500 Steel Pipe Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the SCH 40 Steel Tube are quality guaranteed. We are China Origin Factory of GI Pipe Price List. If you have any question, please feel free to contact us.

Product Categories : Steel Pipe > Galvanized Steel Pipe

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