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:Square Hollow Sections,RHS Hollow Section,Steel Hollow Sections
CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD Square Hollow Sections,RHS Hollow Section,Steel Hollow Sections
Home > Products > Steel Pipe > Rectangular Pipe > Q345b Square Hollow Section

Q345b Square Hollow Section

Share to:  
    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.: 450X450X12MM

Type: Seamless, Q345b Square Hollow Section

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: 450X450X12MM

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

HS Code: 7304900000

Product Description

square&rectangular Steel Pipe diveded into seamless and weld ,
Producing method: Hot rolled or cold formed

seamless square tube is made of seamless tube extrusion process can also be processed through

the strip roll is made.

Usage industry: Structure pipe in constructions, making machinery and shipping building ,bridge

building And so on

Q345b Square Hollow Section 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

High-quality products

steel rectangular tubing

structural square tubing

where to buy square tubing

structural steel square tubing

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


Sales Network









Looking for ideal Square Hollow Sections Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the RHS Hollow Section are quality guaranteed. We are China Origin Factory of Steel Hollow Sections. If you have any question, please feel free to contact us.

Product Categories : Steel Pipe > Rectangular Pipe

Product Images
  • Q345b Square Hollow Section
  • Q345b Square Hollow Section
  • Q345b Square Hollow Section
  • Q345b Square Hollow Section
  • Q345b Square Hollow Section
Email to this supplier
  • *Subject:
  • *Messages:
    Your message must be between 20-8000 characters
Copyright © 2019 CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD All rights reserved.
Communicate with Supplier?Supplier
YIN Mr. YIN
What can I do for you?