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Black Seamless Square Steel Pipe Rectangular Steel Tube
Black Seamless Square Steel Pipe Rectangular Steel Tube
Black Seamless Square Steel Pipe Rectangular Steel Tube
Black Seamless Square Steel Pipe Rectangular Steel Tube
Black Seamless Square Steel Pipe Rectangular Steel Tube
Black Seamless Square Steel Pipe Rectangular Steel Tube
Black Seamless Square Steel Pipe Rectangular Steel Tube

Black Seamless Square Steel Pipe Rectangular Steel Tube

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Payment Type:L/C,T/T,D/P,D/A,Paypal
Incoterm:FOB,CFR,CIF,EXW,DDP,DDU
Min. Order:5 Ton
Transportation:Ocean,Land,Air,Express
Product Attributes

Model No.Square Steel Pipe Rectangular Steel Tube

BrandCHANGYI

StandardBs, Gb, Astm, Jis, Din, Api

MaterialApi J55-Api P110, Stb35-Stb42, A53-A369, Stpa22-Stpa26, Q195-Q345, Stba20-Stba26, 10#-45#, St35-St52

Section ShapeRectangular, Square

Place Of OriginChina

ApplicationStructure Pipe

CertificationCe

Special TubeThick Wall Pipe

Tolerance±1%

CategorySquare tubes, Seamless Steel Pipe

Processing ServiceBending, Welding, Decoiling, Punching, Cutting

Secondary Or NotNon-Secondary

GradeA53(A,B), A106(B,C), A179-C, A192, A178-C

Surface TreatmentBlack Painting or According to requirement

Supply StatusBK, BKW,BKS,NBK,GBK

Wall Thickness2.0mm-100mm

EndsBlack End,Plain End or Bevelled or According to requirement

MarkingAccording to Requirement

Length5.8M,6M/,6.1M,11.8M,12M or According to Requirement

Packaging & Delivery
Selling Units : Ton
Package Type : Standard Exporting Seaworthy Packing or According to Customer Demands
Seamless Square Steel Pipe Rectangular Steel Tube
Product Description

PRODUCT DESCRIPTION


Black Seamless Square Steel Pipe Rectangular Steel Tube.
The seamless square steel pipe rectangular steel tube is a long strip of steel with a hollow section and no seams around it. The inside of the tube is hollow, with a certain cross-sectional area, and is used in large quantities as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials.
Classification and use of seamless square steel tubes and rectangular steel pipes:
1. According to the production method, it can be divided into hot-rolled steel pipe, cold-rolled steel pipe, cold-drawn steel pipe, extruded steel pipe, etc.
Hot-rolled seamless steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high-pressure boiler steel pipes, alloy structural steel and stainless heat-resistant steel seamless steel pipes, seamless steel pipes for geological drilling, etc.
2. According to different materials, it can be divided into ordinary Carbon Steel, high-quality Carbon Structural Steel and alloy structural steel.
3. There are three types of supply according to different purposes:
a. Spiral welded thick-walled seamless steel pipes for pipelines are pipelines used to transport oil and natural gas;
b. Spiral welded thick-walled seamless steel pipes with buried hard polyurethane foam plastic anti-corrosion insulation layer for the oil and gas industry to transport flammable and explosive fluids.
c. Galvanized welded square and rectangular pipes for low-pressure fluid transportation are profiles with square cross-section shapes and sizes made of various metal or non-metal materials for conveying water, gas, air oil and heating steam.
4. According to the cross-sectional shape, there are circular cross-section and special-shaped cross-section.
5. According to different production methods, it can be divided into two types: hot-rolled seamless square tube and cold-drawn precision square tube.

Square and rectangular steel pipe
Material Carbon steel
Steel Grade
Q195 = S195 / A53 Gr. A
Q235 = S235 / A53 Grade B / A500 Gr. A / STK400 / SS400 / ST42.2
Q355 = S355JR / A500 Grade B Grade C
Size range DIAMETER: 20x20MM-600x600MM ; THICKNESS: 1.0MM--20.0MM
Standard EN10219, EN10210,GB/T 6728,JIS G3466,ASTM A500, A36
Grade SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc
Manufacturing technique Hot rolled(elementary) Can be processed again repeatedly
strength of extension A36/420MPa S355JR/485MPa
Certificates ISO 9001 / CE
Delivery Time 10~20days
Shipping (1)Shipping by containers
(2)Shipping by bulk ship

PRODUCT DETAILS


Black Seamless Square Steel Pipes Rectangular Steel Tubes



Product Seamless Steel Pipe
Seamless Pipe China GB/T8162/T8163 GB5310/6579/9948
U.S.A. ASTM A53, A106, A178, A179, A192, A210, A213, A333, A335, A283,  A135, A214, 315, A500, A501, A519, A161, A334, API 5L, 5CT
Japan JIS G3452, G3454, G3456, G3457, G3458, G3460, 3461, 3462, 3464
German DIN 1626, 17175, 1629-4, 2448, 2391, 17200, SEW680
Russia GOST 8732, 8731, 3183
Material and Grade China 10#, 20#, 16Mn, 20G, 15MoG, 15CrMo, 30CrMo,42Crmo, 27SiMn, 20CrMo
U.S.A. Gr. B, Gr.A, A179, A192, A-1, T11, T12, T22, P1, FP1, T5, 4140, 4130
Japan STPG38,STB30,STS38,STB33,STB42, STS49,STBA23,STPA25,STPA23
German ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3, 13CrMo44, 1.0309, 1.0305, 1.0405
Russia 10, 20, 35, 45, 20X
Out Diameter 10-1000mm
Wall Thickness 1-80mm
Length 1-12m
Protection Plastic caps
Packing terms Labeled and bundled together with steel strip
Shipment terms Containers or bundles by sea, one 20" container can load about 20 tons
(5.8meters long),one 40" container can load about 23-25tons (less than 11.8meters long)
Quality Certificate ISO, API, Mill Test Certificate
Surface Treatment Black painting/varnished surface,anti-corrosion oil, galvanized or as per required by customer
Technique Hot Rolled/Cold Drawn
Steel grades Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,
ASTM A500,ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH ect.
Standards GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect.
Pipe ends plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp,or as customers' requirement
treatment
Application liquid delivery (pump well, gas, water), construction pipe,
structuralpipe(greenhouse structure, fence post), curtain wall, machinery part ect.
Delivery Time 10days from stock; 15-20days produced according to the qty
Payment Term T/T or L/C
Price Term CIF; CFR; FOB
Loading Port Qingdao port Tianjin port Shanghai Port China

PRODUCT DISPLAY


Black Seamless Square Steel Pipes Rectangular Steel Tube


EXHIBITION OF COOPERATION


Seamless Carbon Steel Pipe Steel Tubes


CERTIFICATION


Hot dip Galvanized Steel Coils


FAQ


Q:Can I get samples before order ?

A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.


Q:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.


Q:What product information do I need to provide?

A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.


Q:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept  third party inspection.


Q:How do we trust your company?

A:We specialise in steel business for years, headquarter locates in Liaocheng, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO9001 certificate, quality can be guaranteed.
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