Q355/S355 Black scaffolding tube

Q355/S355 Black scaffolding tube

Short Description:

Q355/S355 black tube refers to ungalvanized steel pipes made from Q355 grade, designed for applications demanding high tensile strength. The untreated black surface is ideal for temporary scaffolding, industrial piping, or structural components where surface protection can be added post-installation. Standard sizes include outer diameters of 48.3mm/60mm, wall thicknesses 1–4 mm, and lengths up to 6m, providing flexibility for cutting, welding, or assembly while maintaining structural reliability.Compared with the Q235 material, Q355 material has better hardness and stronger physical properties due to its different chemical composition.It has excellent chemical and physical properties and is widely used. It can be directly used as the standard, ledger, diagonal braces, etc. of the scaffolding, and can also be processed into ringlock system, cuplock system, kwickstage, etc., for scaffolding systems.  


  • Product name: scaffolding weld tube
  • Surface: Self color
  • MOQ: 500 pieces
  • Usage: Construction Etc

Product Detail

Product Tags

Description:

Q355/S355 Black Scaffolding Tube is a high-strength structural steel tube widely used in construction scaffolding systems. It provides stable support, bears heavy loads, ensures safety for elevated work, and allows quick assembly/disassembly. Typical applications include high-rise buildings, bridge maintenance, industrial projects, temporary event structures, and shipbuilding.Key advantages of Q355 material include high strength (yield strength ≥355 MPa), excellent toughness (impact resistance), corrosion resistance (black surface protection), and superior weldability (low cracking risk). It is cost-effective, dimensionally precise, and more durable than conventional scaffolding tubes with lower transport costs.Compliant with GB/T 1591-2018 (equivalent to EN S355), it can be galvanized for enhanced durability and fits various scaffolding couplers, making it a preferred choice for construction and engineering projects.

   


Scaffolding Pipes
OD(mm) Thickness(mm) Length(mm) Zinc Coating(g/m2) Quantity/40CTN(pcs)
48.3 1.80  6000 210-500g 2100
48.3 1.90  6000 210-500g 2000
48.3 2.00  6000 210-500g 1900
48.3 2.10  6000 210-500g 1800
48.3 2.20  6000 210-500g 1750
48.3 2.30  6000 210-500g 1700
48.3 2.40  6000 210-500g 1600
48.3 2.50  6000 210-500g 1550
48.3 2.75  6000 210-500g 1400
48.3 3.00  6000 210-500g 1250
48.3 3.10  6000 210-500g 1250
48.3 3.25  6000 210-500g 1200
48.3 3.50  6000 210-500g 1100
48.3 3.60  6000 210-500g 1100
48.3 3.75  6000 210-500g 1050
48.3 3.85  6000 210-500g 1000
48.3 4.00  6000 210-500g 1000
Hot-Dip Galvanized Steel Pipes
INCH OD Standard Wall Thickness
(MM) SCH 10 SCH 20 SCH 40 SCH 60 SCH 80 SCH
100		 SCH
160		 XXS
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
1/4" 13.70  2.24  3.02 
3/8" 17.10  2.31  3.20 
1/2" 21.30  2.11  2.77  3.73  4.78  7.47 
3/4 26.70  2.11  2.87  3.91  5.56  7.82 
1" 33.40  2.77  3.38  4.55  6.35  9.09 
1-1/4" 42.20  2.77  3.56  4.85  6.35  9.70 
1-1/2" 48.30  2.77  3.68  5.08  7.14  10.15 
2" 60.30  2.77  3.91  5.54  8.74  11.07 
2-1/2" 73.00  3.05  5.16  7.01  9.53  14.02 
3" 88.90  3.05  5.49  7.62  11.13  15.24 
3-1/2" 101.60  3.05  5.74  8.08 
4" 114.30  3.05  4.50  6.02  8.56  13.49  17.12 

Parameter:

Type: Scaffolding Tube, Scaffolding Pipe, Galvanized Scaffold Tube
Outer Diameter: 25.6mm;33.5mm; 42.5mm;48.3mm;59mm;60.3mm
Thickness: 2.5mm-4.0mm
Grade: STK400/500,Q235/Q355
Standard: Bs1139, En10219, En39, En74
Surface Treatment: Hot-dip-galvanized, Pre Galvanized, Black, Painted

Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
Delivery: Within 10-30 days or depends on your order quantity

   

Selling Units:Single item

Single package size:100X50X50 cm

Single gross weight:10.000 kg

Supply Ability: 400000 pieces per month

 

FAQ

  1. 1.Q:What the main products you can supply?
    A:We are the professional and famous factory in China for scaffolding products, our main products is steel prop, frame system, base jack, coupler, steel plank.

    2.Q:Will you can accept the customized and OEM products?
    A:Yes,we can do the production based on your drawings and with your logo,also because we have very strong design and development team,so the feedback is very good for customized product.

    3.Q:What is your payment terms?
    A:Commonly two payment term for new customers
    1 ) 30%T/T as deposit,70% balance against B/L copy.

2)100% Irrevocable L/C at sight.
If you need other terms, please feel free to contact us too, we will try our best.

4.Q:How about the samples? Is it free to extra fees?
A:Yes,we would like to supply the samples before order, if the samples is on stock, it will be free, if the samples is new production, we will charge some reasonable cost, but this amount will be deducted from your first order invoice.



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