Which types of scaffolding pipe Youfa supplied
time2025/10/17
- Youfa brand scaffolding pipes are hot sale in China, UK, UAE and many countries. EN 39, BS 1139, BS 1387, GB/T 3091, GB/T 13793. We also supply other scaffolding accessories for one- stop purchase service.
Scaffolding Pipes Standards
Scaffolding pipe standards vary by country, though there is a strong trend towards international harmonization, particularly with the European standard.
| Country / Region | Primary Standards | Common Steel Grade | Scaffolding Steel Tube OD (mm) |
| International / EU | EN 39 | S235, S355 | 48.3 |
| United Kingdom | EN 39, BS1139 | S235, S355 | 48.3 |
USA | ASTM A500 | Grade B, Grade C | 48.3 (also 42.4, 60.3) |
Australia / NZ | AS/NZS 1576 | S235, S355 | 48.3 |
Russia | GOST 27321 | STK400, STK500 | 48.6 |
| China | GB/T 3091, JGJ 130 | Q235, Q355 | 48.3 |
Scaffolding Pipes Standards EN 39
Key Specifications:
Tube OD: 48.3 mm is the universal standard.
Steel Grade: S355 (Minimum Yield Strength of 355 MPa) is the modern standard. Older S235 and S275 grades are being phased out.
Couplers: EN 74-1 defines the requirements for couplers and center poles.
Scaffolding Pipes Standards BS1139
Key Specifications:
Tube OD: 48.3 mm (± 0.5 mm)
Steel Grade: S235JR.
Scaffolding Tubes Standards ASTM A500
Material Standard: ASTM A500 for cold-formed steel tubing
Tube OD: 48.3 mm (1.9 inches) is most common, but other sizes like 42.4 mm (1-5/8") for light-duty and 60.3 mm (2-1/2") for heavy-duty systems are also used.
Steel Grade: Grade B (Yield Strength 290 MPa / 42 ksi); Grade C (Yield Strength 330 MPa / 46 ksi)
Australia and New Zealand Scaffolding Tubes Standards AS/NZS 1576
Main Standard: AS/NZS 1576: Scaffolding. This is a multi-part standard:
AS/NZS 1576.1: General requirements
AS/NZS 1576.2: Couplers and accessories
AS/NZS 1576.3: Prefabricated scaffolding
...and other parts for specific types (suspended, timber, etc.)
Tube OD: 48.3 mm is standard.
Steel Grade: Typically a grade with a yield strength of ~350 MPa, equivalent to S355.
Russia Scaffolding Tubes Standards GOST 27321
GOST 27321 is a technical standard for scaffolding used in construction and maintenance projects in Russia, with the latest version released in 2023. This standard provides detailed requirements for the design, materials, manufacturing, inspection, and use of scaffolding, aiming to ensure the safety and reliability of scaffolding in construction maintenance projects.
Tube OD: 48.6 mm is standard.
Steel Grade: STK500 ( The yield strength must be at least 355 MPa, the tensile strength must be at least 620 MPa, and the elongation at break must not exceed 21%. )
Youfa Brand Scaffolding Tubes
OD 48.3mm
Thickness: 3.5mm, 4.0mm
OD 48.6mm
Thickness: 3.5mm, 4.0mm
OD 60.3mm
Thickness: 3.5mm, 4.0mm
Steel Grade: Q235, Q355 (S235, S355, STK400, STK500, GradeB, GradeC)
EN39 BS1139 Scaffolding tube 48.3mm 1.5 inch DN40 steel S235
black Scaffolding mild steel Pipe 1/2 inch steel pipe
