Hot rolled seamless steel pipe EN10210 S355J2H is a high-strength structural steel pipe, commonly used in various industrial fields and engineering projects. The following are its main uses and aspects that need to be paid attention to when purchasing:
Industry and use:
Architecture and structural engineering:
Used for steel structure frames, bridges, towers, etc. of buildings.
Make load-bearing columns, beams, trusses and other structural parts.
Machinery manufacturing:
Used for manufacturing brackets, frames and parts of mechanical equipment.
Involving load-bearing equipment such as cranes and conveying systems.
Energy industry:
Used for wind power towers, oil and gas pipelines and other energy-related facilities.
Ship and marine engineering:
Applied to structural parts of offshore platforms and ships.
Precautions when purchasing:
Material and standard:
S355 means the yield strength is 355 MPa;
J2 means the impact toughness at -20°C meets the requirements;
H means hollow steel.
Dimensions and tolerances:
Check whether the specifications of outer diameter, wall thickness and length meet the project design requirements.
Ensure that the dimensional tolerance is within the EN 10210 standard.
Quality certification documents (MTC, 3.1/3.2):
The manufacturer is required to provide quality certification documents in accordance with EN 10204, including chemical composition, mechanical properties and non-destructive testing reports.
Surface quality and flaw detection:
The surface should be free of obvious defects such as cracks, rust, indentations, etc.
Check whether it has passed non-destructive testing (such as ultrasonic testing), especially for key load-bearing parts.
Corrosion resistance and post-treatment:
If used in a corrosive environment, it should be confirmed whether coating or galvanizing is required.
It is also possible to consider whether heat treatment (such as normalizing or tempering) is required to improve performance.
Supplier qualifications:
Choose suppliers with good reputation and stable quality to ensure product consistency.
For large-volume orders, the factory production capacity can be inspected on site.
Logistics and delivery:
Confirm whether the transportation method can avoid deformation or surface damage of the pipe.
Especially for long pipes, it is necessary to pay special attention to the packaging and fixing methods.
Price and delivery time:
Pay attention to the fluctuation of raw material prices in the market and lock in reasonable purchase prices in time.
Clear the delivery cycle to avoid delays due to project progress.
As the end of the year approaches, the shipping cost has an upward trend. Please confirm the delivery date and control the cost.
Post time: Nov-29-2024
