$450.00 - $850.00
最低は発注量 : 2 トン

Square Pipe Square Tube China Supplier

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詳細

支払い条件: L/C,T/T,MoneyGram
供給力: 150000 トン / Year
Tensile Strength: 560-580Mpa
Bend Test: Qualified
Shape: Square/Rectangular
原産地: Shandong 中国
特別な管: 厚い壁の管
外の直径: 20*20-600*600mm Square Pipe Square Tube
適用: 構造の管
Name: Square Pipe Square Tube China Supplier
標準: ASTM A513-2007,DIN EN 10208-1-1998,DIN EN 10216-1-2004,GB/T 3094-2000,JIS G3465-2006,JIS G3466,ASTM,DIN,ギガバイト,JIS
厚さ: 1.0 - 35 mm
二次またはない: 非二次
Impact Value: V-notch
合金またはない: Non-Alloy
セクション形: 正方形
Yield Strength: 360-380Mpa
Elongation: 24-28%
表面処理: oil,paint
認証: セリウム
等級: 20#,45#,16Mn,A210,Q195,Q215,Q235,Q345,St45,10#-45#,16Mn,A53-A369,Q195-Q345,ST35-ST52
技術: 冷たい-引かれる
納品の詳細: 10-15 days Square Tube
Jinan Xinjiyuan Special Section Tube Co., Ltd.
Gold Supplier
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Square Pipe Square Tube  China Supplier

 Square Pipe Square Tube

 

1.Brief Information about Products

Company Information

    Our company focuses on the usage, development and research of square and rectangular tubes over the passed 20 years. We purchased three production lines at the cost of over 16 million for expansion of the new factory in 2012.

    These production lines make full-sizes of square tubes and rectangular tubes: 20x20mm-600x600mm, 20x30mm-600x800mm, Thickness:1.5mm-35.0mm,over 2800 specifications.

 

 Square Pipe Square Tube China Supplier

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.

 

Products Information

Shape

 

Rectangular Tube:20*30-600*800mm

Square Tube:20*20-600*600 mm

Thickness

1.0-35 mm

Material

GB/T3094-2000  GB/T6728-2002

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

EN 10210,EN10219

S235,S355

DIN17100

St33,St37,St52

JIS G3466

SS330,SS400,STK490

ASTM A500,A513,A106 

GR.A,GR.B,GR.C,GR.D                  

Surface

Bared, Oil, Galvanized, Paint

Quality Systerm

We are ISO,CE certificated.Our Factoty has 18 years' experience in manufacturing square and rectangular tube.Our products have been exported to America,Britain,Saudi Arabia,Malaysia,South Korea and many other countries.

Inspection

After we finish manufacturing,we will inspect steel tubes.

a.Technical Properties:Dimensions,Flattening Test, Bending Degree, Twist,Radius 

of Corner,We could guarantee all the technical requirements according to standard.

b.We could provide MTC(Including Chemical composition Mechanical property),these 

could guarantee the material.

c.Welcome our customer to our factory to inspect goods.If you need,you also could ask 

third party(SGS,BV) to inspect goods.

All the measures to show our determination to manufacture high quality steel tubes.

Test

Our factory has own lab room which will test steel tube after manufacturing.

This guarantees quality of steel rube.

1.Chemical Component Analysis (C,Si,Mn,S,P)

2.Mechanical Properties

 (Tensile Strength, Yield Strength, Elongation )

MTC is supplied.

Test Machine

 

Third party inspection: BV,SGS

SGS REPORT2_

Delivery time

Pipe in stock:Within 7-10 days

Production of Square and Rectangular Pipe:Within 15-30 days

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

material you required.

Techniacal Process

The technical process of our company reached international leading level.Our process is used advanced machine to extruded round tube to square and rectangular tube.

Advantages of square and rectangular tube

1.Stress of R angle release completely and equally,our products are of high quality.

2.The sizes are of more precisely.

3.There is little distortion and deformation.

4.Production could adjust,the MOQ is 2 pieces.

The yield strength is higher.

Process flow Diagram

 

63

IMG_0761_2

steel hollow section

 

Contact Information

     Feel free to contact me if you have any questions.

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