Tianjin Brisk Steel is one of the manufacturers of European Standard Steel Tube in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.
PRODUCT
Tianjin BRISK STEEL focus on produce and supply hollow section and steel pipe
Core Standard Families & Key Specifications
Pressure Pipes
|
EN 10216 Series (Seamless for Pressure Service) |
-1: Non-alloy at room temp (e.g., P235GH, P265GH) |
| -2: Non-alloy/alloy for elevated temp | |
| -3: Weldable fine-grain steel (P355NH) | |
| -4: Low-temperature performance grades (P275NL2, -50°C impact) | |
| -5: Stainless steel seamless pressure tubes | |
|
EN 10217 Series (Welded for Pressure Service) Covers ERW/SAW welded tubes |
-1 (non-alloy room temp) |
| -7 (stainless steel welded) |
Structural Hollow Sections
| EN 10210 (Hot-Formed Structural Hollow Sections) | Square, rectangular, circular; Common grades S235JRH, S275J0H, S355J2H; hot-rolled/welded, TMCP/normalized; for buildings, bridges, frames |
| EN 10219 (Cold-Formed Welded Structural Hollow Sections) | Cold-bent welded; same S-grade range; tighter tolerances, thinner walls; ideal for architectural, light structures, machinery. |
Mechanical & General Engineering Tubes
| EN 10297 Series | Seamless circular tubes for mechanical/engineering use; carbon, alloy, stainless grades (E235, E355, X52CrMoV13) |
| EN 10220 | Dimensions/masses per unit length for seamless/welded circular tubes (standard OD & wall thickness series). |
Key Technical Requirements
| Material Grades & Chemistry | Strict limits on C, Si, Mn, P, S; alloy additions controlled for weldability/toughness (e.g., S355 C ≤ 0.22%, CET ≤ 0.45%) |
| Mechanical Properties | Yield/tensile strength, elongation, impact toughness (Charpy V-notch at specified temps, e.g., -20°C, -40°C) |
| Dimensions & Tolerances | EN 10220 for circular tubes; structural sections have tight corner radii, squareness; precision grades available |
| Testing | Chemical analysis (OES), tensile/impact tests, NDT (ultrasonic, eddy current, radiographic for welds), hydrostatic pressure test (100% for pressure tubes) |
| Surface Quality | No cracks, folds, laps; pickled/passivated for stainless steel; shot-blasted for structural tubes. |
Common Manufacturing Processes
| Seamless | Piercing+hot rolling/cold drawing (for pressure, high-strength mechanical tubes) |
| Welded | ERW (Electric Resistance Welding, high production), SAW (Submerged Arc Welding, thick walls, high pressure), laser welding (precision thin walls) |
| Hot-forming | For EN 10210; higher ductility, better weldability |
| Cold-forming | For EN 10219; higher dimensional accuracy, smoother surface, but lower toughness than hot-formed. |
Applications by Sector
| Sector | Tube Type & Standard | Use Case |
| Oil & Gas | EN 10216-1/2, EN 10217-2 | Pipeline, refinery, offshore risers |
| Construction | EN 10210, EN 10219 | Steel frames, columns, trusses, handrails |
| Power Generation | EN 10216-2/3 | Boiler tubes, steam lines, heat exchangers |
| Machinery | EN 10297 | Hydraulic cylinders, axles, mechanical components |
| Water & Gas Distribution | EN 10217-1 | Municipal pipelines, pressure mains |
Advantages of EN Steel Tubes
Advantage
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Harmonized Quality: Consistent specs across Europe, reducing trade barriers
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Safety & Reliability: Tested to PED/CPR requirements, minimizing failure risks
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Traceability: CE marking+mill certificates (EN 10204 3.1.B) for full material traceability
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Versatility: Wide range of sizes, grades, processes to meet any industrial need.
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