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Home > Products > Steel Tube > Cold Formed Square Hollow Tube > Europe Standard Square and Rectangular Seamless Steel Pipe
Europe Standard Square and Rectangular Seamless Steel Pipe
Europe Standard Square and Rectangular Seamless Steel Pipe
Europe Standard Square and Rectangular Seamless Steel Pipe
Europe Standard Square and Rectangular Seamless Steel Pipe
Europe Standard Square and Rectangular Seamless Steel Pipe
Europe Standard Square and Rectangular Seamless Steel Pipe
  • Europe Standard Square and Rectangular Seamless Steel Pipe
  • Europe Standard Square and Rectangular Seamless Steel Pipe
  • Europe Standard Square and Rectangular Seamless Steel Pipe
  • Europe Standard Square and Rectangular Seamless Steel Pipe
  • Europe Standard Square and Rectangular Seamless Steel Pipe
  • Europe Standard Square and Rectangular Seamless Steel Pipe

Europe Standard Square and Rectangular Seamless Steel Pipe

Additional Info

Packaging: 1.In bundles 2.Standard export packing 3. According to customer\'s requirements.

Place of Origin: Shandong, China (Mainland)

Product Description

Europe Standard Square and Rectangular Seamless Steel Pipe

 

 

1.Company Introduction

 

     Jinan Xin Jiyuan Special Section Co.,LTD locates in Jinan where is the capital of Shan Dong province. Our company established in 1997. We have 16 years’ experience in producing square pipe and rectangular pipe. Our production lines can manufacture all sizes of pipes according customers’ requirements.

 

 

2. Technical requirements:

 

1). Chemical Composition:

 

Yield Strength Grade

Demotic Raw-material Grade

235

Q235B, Q235C, Q235D, Q235qC, Q235qD

345

Q345A, Q345B,Q345C,Q345D,Q345Qc, Q345Qd, StE355, B480GNQR

Carbon Equivalent

Ceq(%)=C+Mn/6+Si/24 +Ni/40+Cr/5+Mo/4+V/14

Ⅰgrade product Ceq(%)

Yield Strength Grade

235

345

390

Ceq(%)

≤0.36

≤0.43

≤0.45

Note: In order to improve the performance of steel,390 could add the microelement such as V, Nb, Ti, Mo and N etc.

 

2). Mechanical Property:

 

Yield Strength Grade

W.T

(mm)

Yield Strength

 (Mpa)

Tensile Strength (Mpa)

Elongation

(%)

(20°C) Impact Value J

235

4~12>12~22

≥235

≥375

≥23

≥27

345

4~12>12~22

≥345

≥470

≥21

≥27

390

4~12>12~22

≥390

≥490

≥19

≥27

      

3). ⅠGrade Product Yield Strength:

 

Yield Strength Grade

Outside perimeter (mm)

Wall Thickness

(mm)

Yield Strength %

Directly to Square

Round to Square

235

≥800

12~22

≤80

≤90

345

390

≤85

≤90

Note: when the outer perimeter less than 800mm,can be determined by supply and buyer

 

3. Manufacturing Process:

 

1).Directly into Square: make continuous angle deformation of cold-rolled or hot-rolled steel plate directly, and then by high frequency welding form a Rectangular Steel Tube forming method. Also known as square-square method.

 

2). Round to square: make continuous angle deformation of cold-rolled or hot-rolled steel plate directly, and then by high frequency welding form a round Steel Tube forming method, though the reshaping finally form a rectangular steel tube forming method. Also known as round to square method.

 

 4.Why choose our company?

 

1.High quality pipe with reasonable price.

2.Advanced test equipments and professional inspection measures to guarantee our quality.

3.Our products are widely used in construction, water supply and other fields.

4.The after-sale service is good, customers can buy our products without any worries.

5.We can produce different kinds of pipes according to customers’ requirements.

6.We have exported our products to many foreign countries. Our products are popular among these countries.

7.Professional staff can save your time and money.

 

 

5.

Shape

 

Rectangular:20*30-600*800mm

Square:20*20-600*600 mm

Thickness

1.0-35 mm

Standard

GB/T3094-2000  GB/T6728-2002

ASTM A500 

JIS G 3466

DIN EN 10210

or according to customers’ requirement.

Material

Q195,Q235,Q275,Q345         20#,45#                 S235,S355

St33,St37,St52

A500,A513,A106

SS400 and so on.                               

Technique

Hot Rolled, Cold Rolled,

ERW, 

High-frequency welded, 

Extruded

Certification

ISO9001,CE

Surface

Bared, Oil, Galvanized, Paint

Length

6m, 12m, or according to customers’ requirements

Usage

Machinery manufacture, 

Roads and Bridges,

Construction, 

Transportation

Port of Shipment

QingDao, China 

Main Market

America Asia  Africa  

Oceania  Mid East   
Domestic Market

Productivity

150000TONS/YEAR

In order to make best quotation, Please kindly indicate length, width, thickness and the standard, material you 

required.

 

Your success is our business

 

Packaging & Shipping

1.PACKING WITH BUNDLES:

2.PACKING WITH ANTI-WATER BAGS:

3.GOODS IN TRUCK:

 

 

 

4. GOODS IN CONTAINER:

 

 

5.GOODS IN BULK SHIP:

 

 

 
FAQ

How to contact me?

Email: steelpipeexport (at)yahoo.com

Skype: sdxdcathy

WhatsApp:18905315739

Wechat:554717325

QQ:554717325

 

 

 

 

Thank you for browsing our products.

Looking for ideal Square and Rectangular Seamless Steel Pipe Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the 30 Inch Seamless Steel Pipe are quality guaranteed. We are China Origin Factory of Seamless Steel Pipe. If you have any question, please feel free to contact us.

Product Categories : Steel Tube > Cold Formed Square Hollow Tube

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