Cangzhou Junde Steel Pipe Co.,Ltd


Cangzhou Junde Steel Pipe Co.,Ltd

Add: South of Qiantong Road, Cangzhou City, Hebei, China

Contact us:Sunny Yang

Phone: 86-13303171370

Tel: 86-317-5527266

Fax: 86-317-5527266



ASTM A500 Square Hollow Structural Section Square Seamless and Welded Tube

ASTM A500 Square Hollow Structural Section Square Seamless and Welded Tube Shape : Hollow Sections , Square , rectangular , Round ,Triangular , hexagonal , Eliptical Hollow sections,scafflding tubes

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Product Details

Products : ASTM A500 Square Hollow Structural Section Square Seamless and Welded Tube

ASTM A500 Square Hollow Section

Shape :

Hollow Sections , Square , rectangular , Round ,Triangular , hexagonal , Eliptical Hollow sections,scafflding tubes

Usage :


Construction : Hall structura , sea trestle, airport structure , shipbuilding , secturty door frames , garage doors, strengthening liners of steel doors and windows , indoor partition walls , cable bridge structures and expressway safety guards ,balustrade ,decorationg ,residential ,ornamental pipes .

Automotive parts : Motorcar case ,car and bus manufacture , vehicles

Agriculture : agricultural equipment

Industry ; Machinery , solar stent , offshore oil field , mine equipment , electromechanical hardware ,heavy engineering ,mining and resources , process engineering , materials handing , mechanical parts

Traffic : walking rails , roll-up doors , guardral , plaza structure , signage , road fumiture fencing .

Logistics storage : supermarket shelves , containers , transport industries , commercial constuction .

Other : sports apparatus , leisure equipment , furniture , school furniture . Scaffolding tube .

Material storage racks , Pallets , Hydraulic platforms , trusses , columns , purlins , greenhouse stands towers .

Square Hollow Tube Quality standard :

GB/T 13793 Longitudinal electric resistance welded steel tubes

GB/T 6728 Cold formed steel hollow sections for general

ASTM A 500 Cold formed welded and seamless carbon steel structural tubing in round and shapes

ASTM A 53 Standard specification for pipe, steel , black and hot-dipped , zin-coated, welded and seamless

EN10210 Hot finished structural hollow sections of non-alloy and fine grain structural steels

EN10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels

JIS G3466 Carbon steel square for general structural purposes

BS 1387 Steel tube use for water , gas , air and steam

BS6323 Part 5 Seamless and welded steel tubes for automobile Mechanical and general engineer purpose

IS1161 Steel tubes for structural purpose and electric poles

IS3601 Steel tubes for Mechanical & general engineering purposes .

IS3074 Steel tubes for Automobile purpose

IS4923 Steel tubes for Hollow sections used in structures

DIN166 welded circular tubes of non alloy steel with special quality equirements

DIN2394 welded and sized precision steel tubes

Scoffolding tube :

GB15831 Steel tube scaffold couplers

EN39 Loose steel tubes for tube and coupler scaffolds

BS1139 Metal scaffolding

Steel Grade :

GB/T 13793 ,GB/T 6728 ,GB15831

Q195,Q215,Q235,Q275,Q345,08F,08F08AL,10F,10,HG5,DF08,EN10210,EN10219,BS1387 S185,S235,S235JR,S235G2H,S275,S275JR,S355JRH,S355J2H,ST12,ST13,ST14,ST33,ST37,ST44,ST52

ASTM A500,ASTM A53 GRA,GRB,GRC,GRD ,DC01,DC03,1008,1010

JIS G 3466,SS330,SS440,SS490,SPHD ,SPHE

Process : ERW and Seamless, Square Seamless Tube

Size :

Square : 10mm x 10mm -500mm x 500mm

Wall thickness : 0.5mm-20.0mm

Length : 0.3mtr-18mtr as customer required

Process :

Seamless : Hot rolled , Hot explored

Welded : ERW , HFW

Coating : Hot-dipped galvanized , electrical galvanized

Raw Material : Square Welded Tube

Seamles : Pipe billet ( hot rolled or con-casting ) ,Mother pipe .

Welded : Hot rolled steel coil (HRC) , Coled rolled steel coil (CRC) , Pre-pained galvanized steel strip

End : square cut , burr removed

Surface Lightly oiled , hot dip galvanized , electro galvanized , black

Heat Treatment : Bright annealed , black annealed

Test : Chemical component analysis , Mechanical properties ( Ultimate tensile strength, Yield strength , elongation ) technical properties ( flattening test , flaring test , bending test , hardness test , blow test , impact test etc ) exterior size inspection

Mill Test Certificate : EN10204/3.1B

Production Process Flow Chart:


Produce Equipment:






Part of our Clients:


Why Choose Us:

1: More Than 20 Years produce experience for produce steel pipe.

2: 120 KM from our factory to Tianjin Seaport, Low cost for transport.

3: 30,000 Tons stock pipe,Shortest delivery time.

4: Produce Scope almost have all kinds of steel pipe, One-Stop Purchase.

5: Best quality with competitive price .

6: Thoughtfull after -sales service


1: Q: What's the usefull of Square hollow structural section ?

A: Mainly used in construction, glass curtain wall, doors and windows decoration, steel structure, fence, machinery manufacturing, automobile manufacturing, home appliances manufacturing, shipbuilding, container manufacturing, electricity, agricultural construction, agricultural greenhouses, bicycle racks, motorcycle racks, shelves, fitness equipment Transportation and tourism products, steel furniture, a variety of oil casing, tubing and pipeline, water, gas, sewage, air, heating and other fluid transportation, fire and support, construction and other fields.

2: Q:What Payment you can accept?

A: TT,LC at sight or negotiation

3: Q: What's the delivery date usually?

A: Total quantity less than 1000 Tons, 30 days is ok.

Some have stock can delivery the pipes at any time after received the deposit .

4: Q : How long for the guarantee period ?

A : Guarantee period can delay to 30 days after clients recieved the pipe in the destination port .

Latest News:

Square tube material classification

Square tube by material points: carbon steel square tube, low alloy square tube.

1, carbon steel is divided into: Q195, Q215, Q235, SS400, 20 # steel, 45 # steel.

2, low-alloy steel is divided into: Q345, 16Mn, Q390, ST52-3 and so on.

Square tube production standard classification

Square tube according to the production of standard points: GB side tube, the standard side tube, the British side of the tube, the US standard square tube, the European standard square tube, non-standard square tube.

Square tube shape classification

Square tube by section shape classification:

1, simple section square tube - square square tube, rectangular square tube

2, complex cross-section square tube - flower-shaped square tube, open-shaped square tube, corrugated square tube, shaped square tube.

Square tube surface treatment classification

Square tube by surface treatment points: hot galvanized square tube, galvanized square tube, oil side of the tube, pickled square tube.

Square tube use classification

Square tube according to the use of classification - decorative square tube, machine tool with square tube, the machine industry with the square tube, chemical side tube, steel structure with the square tube, ship with square tube, car with square tube, steel beam Tube, special purpose square tube.

Square tube wall thickness classification

Square tube by wall thickness classification - thick wall square tube, thick square square tube and thin square rectangular tube

Enforceable standards

GB / T6728-2002, GB / T6725-2002, GBT3094-2000, JG 178-2005, ASTM A500 JIS G3466, EN10210 or technical agreement Application: Widely used in machinery manufacturing, construction, metallurgical industry, agricultural vehicles, agricultural greenhouses , Automobile industry, railways, highway fence, container skeleton, furniture, decoration and steel structure.

Flow chart steel pipe index

Product implementation standards: GB / T6728-2002, GB / T6725-2002, GBT3094-2000 JG 178-2005 ASTM A500 JIS G3466 GB / T3094-2000 (GB) Cold-shaped shaped rectangular tube

GB / T6728-2002 (GB) structure with cold bending hollow steel

ASTM A500 (American Standard) Structural Carbon Steel Cold Forming Circular Section and Shaped Section Welding Rectangular Pipe and Seamless Rectangular Pipe

EN10219-1-2006 (European standard) cold forming of non-alloy and fine grain welding hollow structural profiles

JIS G 3466 (Japanese standard) Rectangular tube for general construction

Seamless rectangular tube Material: Q235, Q345 (16Mn), 20 #, alloy steel, stainless steel.

Square tube Product use: machinery and equipment, solar energy equipment, steel structure, automotive parts, bridge pile, guardrail, ship internal structure.


As one of the most professional Square Tube manufacturers and suppliers in China, we have one of the biggest steel pipe factory at your service. If you are interested in our astm a500 square hollow structural section square seamless and welded tube, please be free to buy the quality products made in China. Competitive price and fast delivery are available.

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Contact information

South of Qiantong Road,Cangzhou City,Hebei,China


whatsapp/Wechat: 86-13303171370

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