Gold Member Since 2013
Audited Supplier
Tianjin Sangong International Trade Co., Ltd.

Black Steel Pipe, Ms Tube, Q345 Black Steel Tube manufacturer / supplier in China, offering Welding Round Shape Steel Tubes with Good Price, Eoe TFS 214, Pre Gi Square Pipe and Rectangular Tube and so on.

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Welding Round Shape Steel Tubes with Good Price

Purchase Qty.:
1-4 5+
FOB Unit Price: US $580 US $620
Purchase Qty. (Tons) FOB Unit Price
1-4 US $580
5+ US $620
Get Latest Price
Port: Tianjin, China
Production Capacity: 800000tons/Year
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: SGS
  • Technique: ERW
  • Surface Treatment: Galvanized
  • Section Shape: Round
  • Outer Diameter: 21.3 - 475mm of Q235 Ms Steel Pipe
  • Surface: Galvanized, Black of Q235 Ms Steel Pipe
  • Certificate: ISO, BV
  • Capacity: 1500tons/Day
  • Transport Package: Packed by Steel Strips
  • Origin: Tianjin, China
  • Type: Welded
  • Material: Carbon Steel
  • Usage: Pipeline Transport, Machinery Industry, Chemical Industry, Mining, Special Purpose
  • Thickness: 0.8 - 12 mm of Q235 Ms Steel Pipe
  • Place of Origin: Tianjin, China
  • Length: 2-12m
  • Pipe End: Plained End or Bevelled End
  • Trademark: baolijin
  • Specification: CE, SGS
  • HS Code: 7303001000
Product Description
1. Q235 MS 350mm Diameter Steel Tube
1) ERW pipe O. D: 19-610mm
2) W. T: 0.4-16mm
3) Material: Q235, Q345, A53
4) CE, BV, ISO
2. Standard: GB/T3091-2001, BS1387-1985, ASTM A53, API, JIS, DIN, EN
3. Specification: 10mm-630mm, wall thickness: 0.5mm to 14mm length: 5.8m - 12m
4. Packing: Hexagonal packing, each bundle with several steel strips and nylon slings or according to the clients
5. Other process: Threading, marking, blue bands also with plastic caps
6. Delivery time: 10-30 days, for large quantiy ASAP according to actual situation.
7. Usage: Used for low pressure liquids conveyance, such as water, gas, and construction
8. Company introduction
We tianjin Baolijin Pipe production Co., Ltd is an attached subcompany of Sangong Group. The group has 7 subcompanies and is specialized in manufacturing galvanized square pipe, rectangular pipes, angel steel, channel steel, H Sections, steel flat, round bar steel, rotary blade for farm and garden, Highway fence, light pole and traffic signs bar
Sangong group:
1). 9 rotary blade production lines
2). 30 steel pipe production lines
3). 10 galvanized production lines
4). 4 welded steel pipe production lines
5)5 light pole production lines etc.
We adopting the advanced manufacturing technique and provide high quality products to the customers all over the world. Assure our customers of the delivery time

Q235 MS 350mm Diameter Steel Tube


O.D tolerance



± 0.05



6M, according to customers'requirments

International Standard

ISO9001:2000  etc


GB3091-2001, BS1387, ASTM A53



Product  Category

Metallurgy,Minerial&Energy/steel pipe


Hot rolled / extruded


In bundles or according to customers' requirments




1 curtain (wall)
2         2 steel structure 3         3 traffic 4         4 electricity

Main market

North America, South America, Eastern Europe, Southeast Asia, Mid East, Eastern Asia, Western Europe

Place of origin

Tianjin, China(Mainland)

Supply capacity


Payment term: T/T    30% T/T should be paid within 5 days as deposite since two parties signed contract,70% should be paid within 5 days aginst the copy of B/L  Trade term:FOB,CFR, CIF Minimum quantity order:25t(1,000KGS) Delivery period:10 to 35 Days.

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