S355 Mechanical Structure Tube
S355 Mechanical structure tube is a type of steel pipe formed by
punching through round steel, with no welds on the surface.
According to the production method, seamless steel pipes are
divided into hot-rolled seamless steel pipes, cold-rolled seamless
steel pipes, cold-drawn seamless steel pipes, and hot-expanded
seamless steel pipes. Seamless steel pipes are classified into two
types based on their cross-sectional shape: circular and
special-shaped.
The S355 Mechanical structure tube is a high-strength, low-alloy
steel that is commonly used in structural and mechanical
engineering applications. Known for its excellent balance between
strength, toughness, and weldability, S355 tubes are ideal for the
construction of large structures, particularly where high
load-bearing capacity and durability are critical. This steel grade
is manufactured to European standards, specifically to EN 10210 and
EN 10219, which specify the dimensions, tolerances, and mechanical
properties of tubes made from this steel.
Composition and Properties:
The S355 grade is a type of carbon steel alloy, where the "S"
stands for structural steel, and the number "355" represents the
minimum yield strength of 355 MPa (megapascals) in a thickness of
up to 16 mm. This strength increases with the thickness of the
material. S355 steel is low in carbon content, which enhances its
toughness and allows it to be easily welded and formed into various
shapes, making it ideal for use in mechanical structure tubes.
The chemical composition of S355 steel :
Carbon (C): 0.17% max
Silicon (Si): 0.55% max
Manganese (Mn): 1.60% max
Phosphorus (P): 0.035% max
Sulfur (S): 0.035% max
Nitrogen (N): 0.012% max
Iron (Fe): balance
This combination of elements contributes to its favorable
mechanical properties, including tensile strength, yield strength,
and elongation.
Applications :
Due to its excellent strength-to-weight ratio and superior
mechanical properties, S355 steel tubes are widely used across
several industries:
Construction: S355 tubes are commonly used in the construction of
buildings, bridges, and other structural works where high
load-bearing capacity is required. Their resistance to fatigue and
impact makes them ideal for use in large, dynamic structures.
Transportation: The automotive and aerospace industries also use
S355 tubes for structural components and vehicle frames. The
material’s ability to endure both static and dynamic stresses makes
it an excellent choice for chassis, roll cages, and other critical
components.
Mechanical Engineering: S355 steel tubes are often used in
manufacturing machinery, pipelines, and equipment. Their ability to
withstand wear and tear makes them suitable for high-stress
environments.
Energy: In the energy sector, S355 tubes are often used in the
construction of power plants, wind turbines, and oil and gas
pipelines, where structural integrity and resistance to
environmental factors like corrosion are vital.
Marine and Offshore: The material's strength and resistance to
harsh weather conditions make it ideal for marine and offshore
applications, including the construction of platforms, ships, and
subsea structures.
Why choose us?
We focus on the research, development, production and sales of
seamless steel pipes, special-shaped steel pipes and hydraulic
cylinders. We have a complete production chain and an advanced
equipment system, including piercing machines, cold drawing
machines, hot rolling machines, high-precision flaw detection and
testing equipment. The company has passed multiple authoritative
certifications such as ISO9001, API, SGS, CCS, DNV, ABS, CE, RoHS,
etc., ensuring that each product complies with international
standards. We are committed to providing customers with
high-quality, customizable solutions to meet diverse application
needs.
Relying on our own built processing base and modern workshops,
combined with multiple branches and storage centers across the
country, we have achieved sufficient inventory and efficient
logistics coordination, significantly shortening the delivery cycle
and ensuring the rapid delivery of orders.
We have established a complete service and support system. After
the order is signed, the professional after-sales team can provide
timely and safe on-site guidance and technical support to ensure
that customers are at ease throughout the process from procurement
to use.
FAQ:
1. Do you support customized design and production?
Sure. We have a professional engineering team that can conduct
customized design and production with special sizes, control
systems or OEM according to your requirements.
2. How fast can you deliver?
In stock sizes, it takes 3-5 days. For customized sizes, it takes
30-35 days.
3. What payment methods do you support?
We support TT payment. Generally, 30% to 50% of the payment is made
in advance, and the remaining amount is paid before shipment.
4. Can you provide material certification (MTC)?
Yes, we will provide MTC to you after production is completed to
ensure that the material quality meets the standards.
5. What is the minimum order quantity?
Generally, we accept trial orders. The minimum order quantity is
1-3 tons, which can be determined according to different products.
Certification:
Packaging and Transportation:
Structural Seamless Pipe
