High-strength steel plate WEL-TEN for structural components of special vehicles.
WEL-TEN Series, Nippon Steel Brand
Lightweighting the vehicle body while ensuring the strength of the frame. Material selection considering loading efficiency and durability.
In special vehicles such as garbage collection trucks (packer trucks) and mixer trucks, while strength is required for components like the body, cargo box, and frame, the vehicle weight affects the payload, fuel efficiency, and driving performance. We propose high-tensile steel "WEL-TEN" for structural components that consider thinning and lightweighting while ensuring strength. WEL-TEN is a high-tensile steel plate with higher strength than ordinary steel, widely used for welded structures. By reviewing the plate thickness according to design conditions, it is expected to achieve both lightweighting of the vehicle body and components and the necessary strength. In case studies introduced by Kumagai Special Steel, there are examples of reducing vehicle weight by replacing trailer parts. We accommodate everything from cutting plates, bending, drilling, to welding and fabrication according to the drawings of special vehicles.
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basic information
- I want to reduce the vehicle body weight while maintaining the strength of the frame. - I want to reconsider materials from ordinary steel, taking into account loading efficiency and fuel economy. - I want to procure mass-produced parts and complex-shaped items together up to the processing stage. We handle various grades. Thicknesses from 1.6 to 100 mm, with standard sizes listed. Please check the availability of stock and processing for each steel type and thickness. 1. Main specifications and characteristics - Steel type classification: High-strength steel plate (for welded structures) - Representative grades: WEL-TEN540/590/780 - Tensile strength: 540 to 780 N/mm² class - Yield point: High, resistant to plastic deformation 2. Features of processing and construction - Excellent weldability, with the ability to control preheating conditions - Compatible with gas, laser, and plasma cutting - Capable of bending and drilling processing - Usable under processing conditions similar to ordinary steel 3. Performance highlights - Thickness reduction and weight savings due to high strength - Excellent toughness, resistant to cracking - High durability and superior structural reliability 4. Specifications for Kumagai Special Steel cutting processing - Laser cutting is possible for WEL-TEN590 up to a thickness of 40 mm - Dimensional tolerance is ±1.0 mm (relaxation may be requested depending on product shape) - Precise cutting contributes to reducing subsequent processing work.
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P3
※Kumagai Special Steel has the number one inventory of WEL-TEN steel and has established a system for immediate delivery, including cutting and processing, so it usually takes about a week depending on the lot. Additionally, for special specifications or large lots, it may take longer. Please contact us by email or phone for inquiries!
Applications/Examples of results
WEL-TEN steel is a high-tensile steel plate that combines high strength and weldability, and it has a proven track record across a wide range of industrial fields. Its ability to achieve weight reduction while ensuring structural safety is highly regarded. 1. Main Applications and Practical Examples - Construction Machinery: Boom, Arm, Frame Components - Industrial Machinery: Framework, Support Structures, Enclosures - Architecture and Civil Engineering: Steel Frames, Bridge Components, Seismic Reinforcement Materials - Energy-related: Tanks, Support Structures - Transportation Equipment: Special Vehicles, Trailer Structural Components 2. Evaluation Points in Practical Use - Weight reduction and improved fuel efficiency through thickness reduction - Increased longevity and reduced maintenance due to high strength - Suitable for welded structures, capable of mass production and large structures 3. Expected Future Market Fields - Decarbonization-related products (CO₂ reduction through weight reduction) - Renewable energy facilities (frameworks and support structures) - Structural materials for disaster prevention and infrastructure renewal - BtoC products requiring high durability and long lifespan WEL-TEN steel is expected to see further adoption in fields where both environmental impact reduction and structural reliability are required.
Line up（3）
| Model number | overview |
|---|---|
| WEL-TEN540RE, WEL-TEN540 (55 kg steel, equivalent to SM520) | WEL-TEN540 is a high-tensile steel plate made by Nippon Steel, with a tensile strength of 540 N/mm², enabling both lightweight structures and high safety. Compared to JIS SS400, it has significantly higher strength, allowing for reduced plate thickness and improved load-bearing capacity. It is positioned in a strength range equal to or greater than SM520, while also possessing excellent weldability and workability, making it suitable for a wide range of applications such as bridges, buildings, and industrial machinery. |
| WEL-TEN590RE, WEL-TEN590 (60 kg steel, equivalent to SM570) | WEL-TEN590 is a high-tensile steel plate made by Nippon Steel, featuring a high strength of 590 N/mm², which enables further weight reduction and high reliability of structural components. Compared to JIS SS400, the strength difference is significant, contributing to thinner components and greater design flexibility. Additionally, while positioned in a strength range that exceeds SM520, it also considers weldability and workability, making it widely used in fields that require high strength, such as construction, bridges, and construction machinery. |
| WEL-TEN780 (an ultra-high strength steel with toughness, weldability, and workability, which is difficult to find equivalent products within JIS, weighing 80 kg) | WEL-TEN780 is a high-strength steel plate manufactured by Nippon Steel, featuring an extremely high tensile strength of 780 N/mm², which enables significant weight reduction and enhanced durability of structural components. Compared to JIS SS400 and SM520, it offers overwhelmingly higher strength, contributing to a reduction in the number of components and an extended lifespan. It is compatible with advanced welding and processing technologies and is used in fields where extremely high strength is required, such as construction machinery, cranes, and industrial machinery. |
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Company information
Since our establishment in 1913, we have been a specialized trading company of special steel for nearly a century, listening to the needs of many customers and building an ideal relationship between customers and steel manufacturers as a conductor of steel distribution. As a trading company with various processing equipment, including cutting machines and laser cutting machines, we also contribute to reducing our customers' capital investment. Please feel free to contact us if you have any requests.
