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Carbon Steel Rectangular Tube

Carbon Steel Rectangular Tube

Carbon steel rectangular tube is a type of steel pipe with a square cross-section, mainly composed of elements such as carbon, manganese, silicon, phosphorus, sulfur, etc. Carbon steel square pipes are widely used in fields such as building structures, mechanical manufacturing, highway facilities, bridges and pipelines.
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Product Parameter
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Product Features
Application
Packing & Delivery
Customer Feedback
FAQ

Product Video

Product Parameter

All specifications products can be customized according to customer requirements
Product NameCarbon Steel Rectangular Tube
StandardASTM A106, ASTM A53, API 5L Gr.B, DIN17175,DIN1629
Steel GradeAPI 5L: GR B, X42,X46,X56, X60,X65,X70EN:S275,S275JR,S3SSJRH,S355J2HGB:Q195,Q215,Q235,Q345,L175,L210,L245, L320,L360-L555
Materials

10#,208,45*,Q235,Q345,Q195,Q215,Q345C.Q345AASTM A53A/A53B/ A178C/A106B APISLST37,ST37-2

,DIN 1629 ST35,ST45,DIN 17175 ST35.8,DIN 17175 19Mn516Mn,Q345B,T1,T2,T5,T9,T11,T12,T22,T91,T92,P1,P2,P5,P9,P11,P12,P22,P91,P92.15CrMO,Cr5Mo.10CrMo910,12CrMo,13CrMo44,

30CrMo,A333GR.1.GR.3,GR.6.GR.7Gr.B.X42,X46,X52,X60,X65,X70,X80,X100

TechniqueHot rolled/cold rolled
Surface TreatmentPrime quality (bared, oiled,color paint,3UPE,or other anti-corrosive treatment)
CertificationCE,ISO,SGS,ETC
PackingWaterproof paper,and steel strip packed.Standard Export Seaworthy Package.Suit forall kinds of transport,or as required
MOQ25-28 tons, A Container
PaymentsT/T, L/C,Western union,Paypal, DP, etc
ApplicationStructure,Electric power transmission tower projects,Piling,Water,Oil & gas pipeline engineering,Mechanical industry,etc.
PortQingdao ,Tianjin ,Shanghai
Square TubeRectangle Tube
Size(mm)Wall Thickness(mm)Size(mm)Wall Thickness(mm)
20*201.2-3.020*40 30*401.2-3.0
25*25
30*30
1.2-3.020*40 30*401.2-3.0
40*40
50*50
1.2-4.7530*50 25*50
30*60 40*60
1.2-4.75
70*70 75*75
80*80 90*90
100*100
1.5-5.7560*80 50*80
100*40 120*80
1.5-5.75
120*120 140*140
150*150
2.5-10.0160*80 100*150
140*80 100*180
200*100
2.5-10.0
160*160 180*180
200*200
3.5-12.0200*150 250*1503.5-12.0
250*250 300*300
350*350
4.5-15.75250*200 300*200
350*200 350*250
450*250 400*300
500*200
4.5-15.75
280*280
400*400
5.0-20.0400*350 400*250
500*250 500*300
400*600
5.0-20.0


Product Show

Welded steel pipe also known as welded pipe, is a steel pipe made of steel plate or strip after crimping and welding, generally 6 meters. Welded steel pipe production process is simple, high production efficiency, variety specifications, less investment in equipment, but the general strength is lower than seamless steel pipe.Straight seam welded pipe, steel pipe made of hot or cold rolled steel plate or steel strip coil welding, straight seam welded pipe on welding equipment are called straight seam welded pipe.

① Seamless steel pipe

1.Grade:Q195/Q215/Q235/Q345/S235JR/GRB-D/STK500

2.Size: diemeter is from 21.5 in to406.4 mm,the thickness is from 0.6mmto 20mm the length is from m to 12m

3.Standard:SY/T5037-2000.GB/T9711.1-1997,GB/T9711.2API-5L,SY/T5040-92,ASTMA53A106,DIN1626,DIN1629,DIN2448JIS G3452JIS G3454JIS G3455JIS G3456JIS G3457JIS G3461

② welded pipe

1.Grade:Q195/Q215/Q235/Q345/S235JR/GRB-D/STK500

2.Size: diemeter is from 21.5 in to406.4 mm,the thickness is from 0.6mmto 20mm ,the length is from 1m to 12m

3.Standard:SY/T5037-2000.GB/T9711.1-1997,GB/T9711.2API-5L.SY/T5040-92 ASTMA53A106.DIN1626DIN1629DIN2448.JIS G3452JIS G3454JIS G3455JIS G3456JIS G3457JIS G34611787117962948575244812230656.jpg@!w400

Carbon steel rectangular tube is a square metal pipe with simple manufacturing process, low cost, and wide application. This pipe is made of high-quality carbon steel material and is widely used in the construction, engineering, and manufacturing industries.

Product Features

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① Automatic equipment efficiency fast yearsof processing experience, master experi-ence, perfect equipment stable produc-tion.

② Selection of materials with a variety of specifications optional manufacturers supply,adequate supply, a variety of specifications optional, to meet your needs.

③ Years of industry experience quality assurance years of industry production experience, mature production process,product quality assurance.

④ To map to sample on-demand processing customization support product processing customization,according to customer needs for product processing customization.

Chemical Properties %
Grade A
CMnPSSiCrCuMoNiV
0.250.27-0.930.0350.0350.10.40.40.150.40.08
Grade B
CMnPSSiCrCuMoNiV
0.30.29-1.060.0350.0350.10.40.40.150.40.08
Grade C
CMnPSSiCrCuMoNiV
0.350.29-1.060.0350.0350.10.40.40.150.40.08

Carbon steel manufacturing process:

The smelting of carbon steel is usually carried out in converter and open hearth. Converters generally smelt ordinary carbon steel, while open furnaces smelt all kinds of high-quality steel. The technology of oxygen top blow converter is developing rapidly and it can replace open hearth furnace. The refined liquid steel is injected into the ingot mold to obtain various ingot. After the ingot is forged or rolled, it is processed into plates, strips, bars, and sections of various sectional shapes. Carbon steel is usually used directly in the hot rolled state. When used for manufacturing tools and various machine parts, it needs to be heat treated according to the requirements of use; As for steel castings, most of them are heat-treated.

1787117926948575097067864064.jpg@!w400

Application

Carbon Black annealed rectangular hollow tube are usually used in engineering construction, glass curtain wall, door and window decoration, steel structure, guardrail, machinery manufacturing, automatic manufacturing, home appliance manufacturing,shipbuilding, container manufacturing, electric power, agricultural construction, agricultural shed, bicycle frame, shelves,fitness equipment fields. The surface of the galvanized layer can effectively prevent rust.

1787117961948575242878619648.jpg@!w400

Packing & Delivery

PackageStandard export seaworthy package,suit for all kinds of transport, or as required.
Water-proof Paper + Edge protection + Wooden Pallets
Bulk SizeAny size
Loading PortTianjin, Qingdao Port or any China Seaport
Container1*20ft container load Max. 25 Ton, Max. length 5.8m
1*40ft container load Max. 25 Ton, Max. Length 11.8m
Delivery Time7-15 days or according to the order's quantity

1787117962948575246880022528.jpg@!w400

Customer Feedback

1786516883946054139626450944.jpg@!w400


FAQ

Q1: Are you a carbon steel pipe manufacturer or trading company?
A:
We are an integrated manufacturer and trading company with our own factory and multiple production lines, providing stable supply and project-oriented procurement support for international customers.


Q2: What types of carbon steel tubes do you supply?
A: We supply carbon steel square tubes and rectangular tubes in various grades, sizes and wall thicknesses for construction, structural and industrial applications.


Q3: What standards and grades are available?
A: We can supply square and rectangular tubes according to ASTM, EN, DIN, JIS and GB standards, depending on customer and project requirements.


Q4: What sizes and wall thicknesses are available?
A: We offer a wide range of outside dimensions and wall thicknesses. Standard and customized sizes are available according to specific requirements.


Q5: Can you provide customized square and rectangular tubes?
A: Yes. We can provide customized dimensions, wall thicknesses, lengths, surface treatments and other specifications according to customer requirements.


Q6: What is the difference between square and rectangular carbon steel tubes?
A: Square tubes have equal width and height, while rectangular tubes have different dimensions. The appropriate section can be selected according to structural design and application requirements.


Q7: What quality certificates and inspection documents are provided?
A: We can provide MTCs and relevant inspection documents, including chemical composition, mechanical properties, dimensions and other information required by the applicable standard.


Q8: Do you accept third-party inspection?
A: Yes. Third-party inspection can be arranged according to customer or project requirements before shipment.


Q9: What is the MOQ and lead time?
A: MOQ and lead time depend on the grade, dimensions, quantity and production requirements. Specific terms are confirmed with each quotation.


Q10: How are square and rectangular tubes packaged for export?
A: Tubes are normally packed in bundles with steel straps and suitable protective materials. Packaging can be adjusted according to the product and transportation requirements.


Q11: How can I get a quotation for square or rectangular tubes?
A: Please provide the required standard, grade, tube size, wall thickness, length, quantity and delivery destination. We will prepare a quotation based on your specifications.


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