Iron Square Tube Prices Alibaba Express China
USD $450 - $800 /Ton
Min.Order:2 Tons
Jinan Xin Jiyuan Special Section Tube Co., Ltd.
Iron Square Tube Prices Alibaba Express China
1.Brief Information about Products
1)Which size we could manufacture?
Square tube:20*20-600*600 thickness:1.0-35mm
Rectangular tube:20*30-600*800 thickness:1.0-35mm
We could manufacture any size between the above data,for example 120*200*5MM, 250*400*8MM,300*800*20MM,600*600*16MM.
Special sizes square and rectangular tube is our advantages,you could tell me the sizes you need,we will manufacture steel tubes especially for you.Our MOQ is 2 pieces.
2)Which Standard and Material we could manufacture?
Standard:ASTM A500,EN10210,EN10219,AS1163,JIS G3466 and other standards according to
customers’ requirements.
The mechanical property of common material for your reference
Steel Grade | Tensile Strength (Rm/Mpa) | Yield Strength (Rel/Mpa) | Elongation (A%) |
Q235 | ≥410 | ≥235 | ≥25 |
Q345 | 375-500 | ≥345 | ≥20 |
20#(seamless) | 470-630 | ≥245 | ≥20 |
3)What is our Quality Systerm?
We are ISO,CE certificated.We could provide high quality square and rectangular tube based on
lowest price.
4)How will we inspect our goods?
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.
5)What is our payment terms?
T/T or L/C at sight
6)How about our delivery Time?
Pipe in stock:Within 7-10 days
Production of Square and Rectangular Pipe:Within 15-30 days
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 Tube:20*30-600*800mm |
Square Tube:20*20-600*600 mm | |
Thickness | 1.0-35 mm |
Material | 1.GB/T3094-2000 GB/T6728-2002 Q195,Q235,Q275,Q345,20#,45# 2.EN 10210,EN10219 S235,S355 3.DIN17100 St33,St37,St52 4.JIS G3466 SS330,SS400,STK490 5.ASTM A500,A513,A106 GR.A,GR.B,GR.C,GR.D or according to clients requirements. |
Surface | Bared, Oil, Galvanized, Paint |
Length | 6m, 12m, or according to customers’ requirements |
Port of Shipment | QingDao, Tianjin |
Test Certification | 1.Chemical Component Analysis (C,Si,Mn,S,P) 2.Mechanical Properties (Tensile Strength, Yield Strength, Elongation ) MTC is supplied. |
Third party inspection: BV,SGS | |
Productivity | 150000TONS/YEAR |
In order to make best quotation, Please kindly indicate length, width, thickness and the standard, material you required. |
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.
Feel free to contact me if you have any questions.
Thank you for browsing our products.