Tianjin Yòufā Steel Co., Ltd
Tianjin Yòufā Steel Co., Ltd
Home> Products> Carbon Steel Pipe> Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe
Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe
Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe
Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe
Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe
Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe
Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe

Black Carbon Welded/Seamless Q235/Stk400 Square Steel Pipe

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Payment Type:L/C,T/T,D/P
Incoterm:FOB,CFR,CIF,EXW
Transportation:Express,Land,Ocean
Port:Tianjin,Qingdao,Shanghai
Product Attributes

Model No.Q235 Stk400 Stk500

StandardBs, Gb, Astm, Din, Api, Jis

MaterialA53-A369, Q195-Q345, Cr-Mo Alloy, 10#-45#, St35-St52

Section ShapeRectangular, Square

Place Of OriginChina

ApplicationFluid Pipe, Structure Pipe

Production ProcessHot Rolled

CertificationApi, Ce

Special TubeApi Pipe

Whether AlloyNon-Alloy

Tolerance±1%

CategorySquare tubes, Seamless Steel Pipe, Welded Steel Pipe

Processing ServiceCutting, Punching, Decoiling, Welding, Bending

Packaging & Delivery
Selling Units : Ton
Package Type : Standard marine packaging, or as required by the customer
Picture Example :
Carbon Steel Square Tube
ASTM A53 A106 Round Carbon Seamless Steel Pipe
Product Description

Square tubes is a form of tube type, people have a different name on it, called the rectangular tubes, rectangular tubes, square tubes, welded Square Tube, because it has a lot of kinds of material of material can make the tube body, usually square tube is formed after unpacking, kaiping, bending strip welding pipe, again by the mechanism of rolling into a square tube.

Carbon Square Steel Pipe, Rectangular Steel Pipe, steel hollow section, divided according to the shape of the section, is a name for Square Pipe and rectangular pipe. It is made of strip steel that has been processed and rolled. Generally, the strip is unpacked, flattened, coiled, welded to form a Round Tube , and then rolled into a square tube from the round tube and then cut to the required length. Square rectangular tube is also called cold-formed hollow Section Steel, referred to as square tube and rectangular tube.

Product Specification

Product Name

Carbon Steel Square Pipe; Carbon Steel Square Tube

Standard

GB5310-2009, GB3087-2008, GB6479-2013, GB9948-2013, GB/T8163-2008, GB8162-2008, GB/T17396-2009
EN10216-5, EN10217-7, DIN17456, DIN 17458
JIS G3463, JIS G3119, JIS G3446, JIS G3218, JIS G3258, JIS G3448, JIS H4631

Outer Diamater

1) Round Pipe: 8mm - 680 mm
2) Square Pipe: 10mm*10mm - 500mm*500mm
3) Rectangular Pipe: 10mm*20mm -500mm*450mm

Wall-Thickness

0.5mm-100mm or Customized

Length

1m, 1.8m, 2m, 3m, 4m, 5m, 5.8m, 6m, 9m, 10m, 11.8m, 12m or Customized

Square Pipe Size

16×16×0.4~1.5; 18×18×0.4~1.5; 20×20×0.4~1.5; 25×25×0.6~2.0; 30×30×0.6~4.0; 34×34×1.0~2.0; 35×35×1.0~4.0; 38×38×1.0~4.0; 40×40×1.0~4.5; 44×44×1.0~4.5; 45×45×1.0~5.0; 50×50×1.0~5.0; 60×60×1.5~5.0; 70×70×2.0~6.0; 75×75×2.0~6.0; 80×80×2.0~6.0; 85×85×2.0~6.0; 95×95×2.0~8.0; 100×100×2.0~8.0; 120×120×4.0~8.0; 150×150×6.0~10.0; 180×180×6.0~12.0; 200×200×6.0~30.0; 220×220×6.0~30.0; 250×250×6.0~30.0; 280×280×6.0~30.0; 300×300×8.0~30.0; 320×320×8.0~30.0; 350×350×8.0~30.0; 380×380×8.0~30.0; 400×400×8.0~30.0; 420×420×10.0~30.0; 450×450×10.0~30.0; 480×480×10.0~30.0; 500×500×10.0~30.0

Rectangular Tube Size

10×20×0.6~1.5 ; 14×21×0.6~1.5 ; 15×30×1.5~1.5 ; 15×38×0.6~1.5 ; 20×30×0.6~2.0 ; 20×40×0.8~2.0 ; 20×50×1.0~2.0 ; 22×35×0.9~2.0 ; 25×40×0.9~3.75 ; 25×65×1.0~2.0 ; 30×40×1.0~3.75 ; 30×45×1.0~3.75 ; 30×50×1.0~4.0 ; 30×60×1.0~4.5 ; 40×50×1.0~4.5 ; 40×60×1.0~5.0 ; 40×80×1.5~5.0 ; 40×100×2.0~5.0 ; 50×60×2.0~5.0 ; 50×80×2.0~5.0 ; 50×100×2.0~8.0 ; 60×80×2.0~6.0 ; 80×100×2.0~8.0 ; 120×60×2.5~10.0 ; 120×80×2.5~10.0 ; 150×100×2.5~12.0 ; 180×150×2.5~12.0 ; 200×100×4~12.0 ; 200×150×4~12.0 ; 250×150×6~12.0 ; 250×100×6~12.0 ; 250×200×6~30.0 ; 300×150×6~30.0 ; 300×200×6~30.0 ; 300×250×6~30.0 ; 400×250×8~30.0 ; 400×300×8~30.0 ; 450×200×8~30.0 ; 450×250×8~30.0 ; 400×300×8~30.0 ; 400×350×8~30.0 ; 500×200×10~30.0 ; 500×250×10~30.0 ; 500×300×10~30.0 ; 500×350×10~30.0 ; 500×400×10~30.0 ; 500×450×10~30.0

Surface

Galvanized, PVC, Black-Painting, Color-Painting, Transparent-Oil, Anti-Rust-Oil, Black-Varnish, 2PE, 3PE, Epoxy-Coating, BE, PE

Technique

Hot Rolled, Cold Drawn, Forging, Seamless or Welded

Shape

Round, Square, Oval, Rectangular, Welded, Elliptical, Triangular, Hexagonal, Octagonal, Irregular, Special Shapes or Customized

Pipe Ends

1) Plain
2) Beveled
3) Threaded with coupling and plastic cap

Deep Processing

Oiled, Painted, Galvanized, Powder Coating, Shrink Head, Pressure Groove, Welding Head, Punching, Threaded With Coupling and Plastic Cap

Material-1

ASTM: A105, A106, A106B, A106C, A178, A179, A192, A210, A213, A249, A268, A269, A270, A312, A333, A335, A358, A409, A511, A519, A53, A53A, A53B, A554, A778, A790, A928, B338, B673, B674, B675, B676, B677, B690, 370WP91, WP1, WP2, Gr.B, API5L
ASME: B36.19, B36.10
SAE1018, SAE1020, SAE1518, SAE1045
JIS: S10C, S20C, S25C, S35C, S45C, S55C, STKM11A, STKM12A, STKM12B, STKM12C, STKM13A, STKM13B, STKM13C, SCr420, SCr440, SCM415, SCM420
DIN: C10, CK10, C22, CK22, C35, CK35, C45, CK45, CF53
GB/T: 10#, 20#, 35#, 45#, 55#, Q195, Q215, Q235A, Q235B, Q235C, Q345A, Q345B, Q345C

Material-2

16Mn, 19Mn5, 20Cr, 40Cr, 20Mn2, Cr5Mo, 12CrMo, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 12Cr1MoV, Cr5Mo, 30CMo, 20MnG, 25MnG, 15CrMoG, 12Cr1MoVG, 10CRM0910, 20CrMnTi, 40MnMoV, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND), 27SiMn, SS400
20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5, 10CrMo910, 13CrMo44
C10/CK10, C22/CK22, C35/CK35, C45/CK45, S20C, S40C
1010, 1020, 1026, 1035, 1045, 1050, 4130, 4135, 4140, 5120, 5140
STP, API, 5L, CF53, SCM432, SCRRM3, SCM4, SAE1018, SAE1020, SAE1045
X42, X46, X52, X56, X60, X65, X70, X80, X100, H40, J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr
St37, St37.0, ST37-2, St37.2, St35, St35.4, ST35.8, St42, St45, St52, St52.4, ST35, STP, STPT42, STB42, STS42, STPT49, STS49
G38, G42, J55, K55, L80, N80, P1, P2, P5, P9, P11, P12, P22, P91, P92, P110, T1, T2, T5, T9, T11, T12, T22, T23, T91,T92
Grade A, Grade B, Grade C, Gr.A, Gr.B, GR.1, GR.3, GR.6, GR.7

Application

1) Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction Decoration, Special Purpose
2) Low and Middle Pressure Fluid Pipeline, Electric Industry, Drilling, shipbuilding, Fertilizer Equipment and Pipeline structure, Petrochemical, Pharmaceutical Industry
3) Agriculture Equipment Pipe, Water and Gas Pipe, Greenhouse Pipe, Scaffolding Pipe, Building Material Tube, Furniture Tube, Low Pressure Fluid Tube, Oil Pipe, Fence, Greenhouse, Door Pipe, Greenhouse
4) Widely Used in Scaffolding Construction Which is Much Cheaper and Convenient

Package

Packed in bundles with 6-8 pcs steel strips, and wrapped with waterproof cloth

Lead Time

Delivery of spot products within 2-3 days after receiving the deposit
Customized products delivered within 7-10 days

Payment Terms

30% T/T in advance, 70% T/T 70% L/C at sight balance before shipment

Tips

Specific requirement of alloy grade, temper or specification can be discussed at your request

Carbon Square Steel Pipe Carbon Square Steel Pipe

Production Line

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Carbon Square Tube

Detailed Photos

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Carbon Square Steel Tube Carbon Square Steel Pipe

Product Test

Carbon Square Steel Tube
Packaging & Shipping
Carbon Square Steel Pipe
Application
Carbon Square Steel Pipe
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