Description

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Welded angle is a steel product that is processed into L-shaped cross-section by welding process, compared with the traditional hot rolled angle, welded angle has the significant advantages of flexible production, diverse specifications, accurate size and so on. As an important material in modern steel structure engineering, welded angle plays an irreplaceable role in construction, machinery, bridge, electric power and other fields.

Product Parameter (Specification)

Products description:

Product information	Parameter	Product intormation	Parameter
Product name	Stainless steel angle bar	Standard	ASTM, JIS, DIN, EN
Length	Customised to customer requirements	Certification	ISO, SGS
Grade-ASTM	304,316,430,Q235,A36,SS400,Q345,Q390& other	Price term	FOB
Technique	Cold-formed hot rolled	Payment terms	T/T L/C
Packaging and delivery
Note : bundle, plastic bags, thin film, wooden pallet, standard seaworthy export packing or as customer demands

Product Feature and Application

Construction and civil engineering

In concrete structures, welded angles can be used as embedded parts for fixing equipment bases; in roof trusses or curtain wall keels, they can be welded to form a grid-like support system to improve overall seismic resistance and wind pressure resistance. In addition, welded angles can also be used for stair handrails, maintenance platforms and other ancillary structures, taking into account the functionality and safety.

bridge and traffic facilities

Bridge engineering requires high strength and durability of materials, welded steel angle is often used for bridge truss, guardrail and connecting parts. In railway bridges, welded angle constitutes the lateral support between rail sleepers, dispersing the track load; in the tower part of suspension bridge or cable-stayed bridge, multi-layer angle welded structure can enhance the stability of the tower column. In addition, traffic signal light poles, highway noise barrier skeleton is also mostly used welded steel angle, through the anti-corrosion treatment to adapt to the complex outdoor environment.

machinery manufacturing and heavy equipment

Mechanical equipment requires a large number of rigid brackets and connecting parts, welded steel angle because of its easy processing characteristics become preferred. For example, the chassis frame of engineering machinery, mining equipment conveyor belt bracket, all through the welded angle to achieve modular assembly; in the automated production line, angle welded frame can provide a solid installation platform for precision instruments. In addition, agricultural machinery (such as harvesters, planters) shield and load-bearing structure also rely on the lightweight design of welded steel angle.

power and communications infrastructure

Facilities such as power transmission towers and communication base stations are exposed to the field for a long time, which requires strict resistance to corrosion and deformation of the structure. Welded angle steel through hot-dip galvanising or spraying process, become the main material of high-voltage transmission towers, its triangular or quadrilateral welded frame can effectively resist strong wind loads. In the field of communication, the angle welded base station tower not only supports the antenna equipment, but also need to adapt to the mountain, coastal and other terrain, its modular design is easy to transport and on-site assembly.

ships and marine engineering

Shipbuilding, welded steel angle is commonly used in bulkhead reinforcement, deck support and the construction of the hull skeleton. Its welded nodes need to meet strict sealing and fatigue resistance requirements to cope with wave impact. In marine platforms, port terminals and other projects, welded angle steel structure can be used as anti-collision piles, bollards or buoy bases, through special anti-corrosion treatment to resist seawater erosion and extend service life.

home and decorative innovation

The application of welded steel angle is not only limited to industrial scenes, in recent years in furniture design and architectural decoration has also emerged. Industrial style furniture is often exposed welded steel frame with wood or glass, highlighting the simple and tough style; shopping malls, exhibition halls, decorative partitions or art installations, welded steel through creative splicing can be formed by the geometric aesthetics of a strong three-dimensional structure. In addition, greenhouses, storage shelves and other civil facilities also rely on its low-cost, high-strength characteristics.

Production Details

The product specifications in the following table are regular specifications, if there are special circumstances, we can be customised according to customer requirements

Type	Side length (mm)	Thickness (mm)	Theoretical weight (kg/m)	Length (m)
equilateral angle	20×20	3	0.89	6(customizable)
	30×30	3	1.37
	40×40	4	2.42
	50×50	5	3.77
	60×60	6	5.42
	80×80	8	9.66
Unequal angles	30×20	3	1.12	6(customizable)
	40×25	4	2.11
	50×30	5	3.05
	60×40	6	4.58

FAQ

Q: What is the difference between welded and plain angle?

A: Ordinary Angle: usually connected by bolts or rivets, suitable for demountable structures.
Welded Angle: fixed by welding, stronger connection, better sealing, suitable for permanent structure, but more difficult to disassemble.

Q: What materials are commonly used for welded angles?

A: Common materials include:
Carbon steel (e.g. Q235, Q345): low cost and high strength, suitable for general industrial scenarios.
Stainless steel (e.g. 304, 316): high corrosion resistance, used in marine engineering or wet environments.
Weather-resistant steel: the surface forms an oxidised protective layer, suitable for outdoor structures with long-term exposure.

Q: How much load can welded angles carry?

A: The load capacity depends on the specification of the angle (side length, thickness), the strength of the material and the quality of the weld.
For example:
50 x 50 x 5mm Q235 angle, a single vertical load bearing about 3-5 tonnes (need to be combined with the support method calculation).
In practice, it is necessary to refer to the design specification (e.g. GB 50017) for mechanical calculations.

Q: What are the main defects of welded angle? How to detect?

A: Common defects: porosity, slag entrapment, unwelded penetration, cracks.
Detection method:
Visual inspection: surface cracks or obvious defects.
Ultrasonic testing (UT): internal defects localisation.
Magnetic particle testing (MT): surface tiny crack detection.

Q: Are welded angles safe for use in furniture design?

A: Safety depends on the quality of design and construction:
It is necessary to ensure that the welds are free of false welds and cracks, and polished smooth to avoid scratches.
Reinforcement or auxiliary support should be added to load-bearing parts.
Surface treatment (e.g. painting) enhances aesthetics and rust resistance.

Q: What are the future trends of welded angles?

A: Material upgrading: the popularity of high-strength and lightweight stee.
Automated welding: Robot welding to improve precision and efficiency.
Green process: environmentally friendly coating technology, application of recyclable materials.