Company Details
  • CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD

  •  [Hebei,China]
  • Business Type:Manufacturer
  • Main Mark: Worldwide
  • Exporter:71% - 80%
  • Certs:GS, GB, ISO9001, ISO9000, ISO9002, ISO14000
  • Description:Seamless Square Tubing,4 Inch Square Tubing,2in Square Tubing
CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD Seamless Square Tubing,4 Inch Square Tubing,2in Square Tubing
Home > Products > Steel Pipe > Rectangular Pipe > Q345B Seamless Square Tubing

Q345B Seamless Square Tubing

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    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 1 Ton
    Delivery Time: 3 Days

Basic Info

Model No.: DN10-DN900

Type: Welded, Q345B Seamless Square Tubing

Certification: API, CE, ISO.UKS.SGS.BV.API

Application: Structure Pipe, Fluid Pipe, Oil Pipe, Boiler Pipe, Chemical Fertilizer Pipe, Gas Pipe, Hydraulic Pipe, Drill Pipe, Chemical, Water, Oil And Gas, Electricity

Section Shape: Square

Surface Treatment: Black

Usage: Pipeline Transport, Special Purpose, Oil&Gas Well Drilling, Machinery Industry, Chemical Industry, Thermal Equipment, Mining, Construction & Decoration

Technique: ERW

Material: Carbon Steel

Brand Name: HAOYUAN

Package: Paint, Tied

Materials: Gr B,Q235B,Q345B, St33,St37,St37,St52,C20,20#.

Standard: Astm,Gost,Din,GB

Thickness: 1.5mm-60mm

Size: 16mm-1000mm

Crafts: Seamless

Additional Info

Packaging: Paint, Tied

Productivity: 100T/Day

Brand: HAOYUAN

Transportation: Ocean,Land,Air

Place of Origin: CANGZHOU

Supply Ability: 5000T/Month

Certificate: ISO.API.CE

Product Description

Q345B Seamless Square Tubing It is a low carbon alloy steel (c <0.2%), good overall performance, good low temperature performance, cold stamping performance, welding performance and machinability. Widely used in bridges, vehicles, ships, construction, pressure vessels and so on. Q represents the yield of this material, followed by 345, refers to the yield value of this material, at 345MPa or so. And will increase with the thickness of the material to reduce its yield value.

Seamless Pipe round ,Seamless Steel Pipe ,ERW Steel Pipe ,Lsaw Steel Pipe ,Galvanized Steel Pipe ,Stainless Steel Pipe ,Rectangular Pipe

Q345B Seamless Square Tubing wall thickness classification table

Square tube (mm)

Rectangular tube (mm)

16×16×0.4~1.5

380×380×8.0~14.0

10×20×0.6~1.5

250×150×6~12.0

18×18×0.4~1.5

400×400×8.0~14.0

14×21×0.6~1.5

250×100×6~12.0

20×20×0.4~1.5

420×420×10.0~14.0

15×30×1.5~1.5

250×200×6~12.0

25×25×0.6~2.0

450×450×10.0~14.0

15×38×0.6~1.5

300×150×6~12.0

30×30×0.6~4.0

480×480×10.0~14.0

20×30×0.6~2.0

300×200×6~12.0

34×34×1.0~2.0

500×500×10.0~14.0

20×40×0.8~2.0

300×250×6~12.0

35×35×1.0~4.0

Change pull specification

20×50×1.0~2.0

400×250×8~12.0

38×38×1.0~4.0

550×550×10.0~40.0

22×35×0.9~2.0

400×300×8~12.0

40×40×1.0~4.5

600×600×10.0~40.0

25×40×0.9~3.75

450×200×8~12.0

44×44×1.0~4.5

700×700×10.0~40.0

25×65×1.0~2.0

450×250×8~12.0

45×45×1.0~5.0

800×800×10.0~50.0

30×40×1.0~3.75

400×300×8~12.0

50×50×1.0~5.0

900×900×10.0~50.0

30×45×1.0~3.75

400×350×8~12.0

60×60×1.5~5.0

1000×1000×10.0~50.0

30×50×1.0~4.0

500×200×10~12.0

70×70×2.0~6.0

30×60×1.0~4.5

500×250×10~12.0

75×75×2.0~6.0

40×50×1.0~4.5

500×300×10~12.0

80×80×2.0~6.0

40×60×1.0~5.0

500×350×10~12.0

85×85×2.0~6.0

40×80×1.5~5.0

500×400×10~12.0

95×95×2.0~8.0

40×100×2.0~5.0

500×450×10~12.0

100×100×2.0~8.0

50×60×2.0~5.0

Change pull

specification

120×120×4.0~8.0

50×80×2.0~5.0

600×200×10~28.0

150×150×6.0~10.0

50×100×2.0~8.0

600×400×10~28.0

180×180×6.0~12.0

60×80×2.0~6.0

600×500×10~28.0

200×200×6.0~12.0

80×100×2.0~8.0

800×400×10~28.0

220×220×6.0~14.0

120×60×2.5~10.0

800×600×10~28.0

250×250×6.0~14.0

120×80×2.5~10.0

800×700×10~28.0

280×280×6.0~14.0

150×100×2.5~12.0

1000×400×10~28.0

300×300×8.0~14.0

180×150×2.5~12.0

1000×500×10~28.0

320×320×8.0~14.0

200×100×4~12.0

1000×600×10~28.0

350×350×8.0~14.0

200×150×4~12.0

1000×800×10~28

Can be customized according to customer requirements seamless thick-walled pipe

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Square And Rectangular Steel Pipe Production Process

Square And Rectangular Steel Pipe Production Process

Executable standards: GB / T6728-2002, GB / T6725-2002, GBT3094-2000, JG 178-2005, ASTM A500 JIS G3466, EN10210 or technical agreement
Material: Q195-Q235, Q345, 20 #, alloy steel, ST37-2, ST52-3, S235, S355etc
Product packaging: painting; oil; anti-corrosion insulation; groove or flat mouth; tube end protection;
Applications: Widely used in machinery manufacturing, construction, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railways, highway guardrail, container skeleton, furniture, decoration and steel structure.

Lsaw Steel Pipe workshop

Rectangular steel pipe workshop

square tubing

Production Process


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Product Categories : Steel Pipe > Rectangular Pipe

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  • Q345B Seamless Square Tubing
  • Q345B Seamless Square Tubing
  • Q345B Seamless Square Tubing
  • Q345B Seamless Square Tubing
  • Q345B Seamless Square Tubing
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