S890Q is a European standard (EN 10025-6) high-strength, fine-grain structural steel that is quenched and tempered, meaning it's heat-treated for superior strength, with a minimum yield strength of 890 MPa (MegaPascals). It's used in heavy-duty applications like mining, lifting, and construction equipment, allowing for weight savings in high-stress parts while remaining weldable and formable.
Mechnical property for S890Q steel plate:
| Thickness (mm) | |||
| S890Q | ≥ 3 ≤ 50 | > 50 ≤ 100 | > 100 |
| Yield strength (≥Mpa) | 890 | 830 | 830 |
| Tensile strength (Mpa) | 940-1100 | 880-1100 | 880-1100 |
Chemical composition for S890Q steel plate (Heat Analysis Max%)
| Main chemical elements composition of S890Q steel plate | |||||||
| C | Si | Mn | P | S | N | B | Cr |
| 0.20 | 0.80 | 1.70 | 0.025 | 0.015 | 0.015 | 0.005 | 1.50 |
| Cu | Mo | Nb | Ni | Ti | V | Zr | |
| 0.50 | 0.70 | 0.06 | 2.0 | 0.05 | 0.12 | 0.15 | |
applications
Heavy Machinery:
S890Q is extensively used in heavy machinery, including critical components for excavators, cranes, and other earthmoving equipment. Its ultra-high strength and excellent toughness make it ideal for boom sections, dipper arms, chassis parts, and load-bearing structures that must withstand extreme forces, dynamic loads, and harsh working conditions. By using S890Q, manufacturers can significantly reduce the weight of components while maintaining or even enhancing structural integrity, leading to more efficient, fuel-saving, and productive machines.
Transportation:
In the transportation sector, S890Q is employed in the fabrication of structural parts for heavy transport vehicles such as heavy-duty trucks, trailers, and special-purpose vehicles. These vehicles often operate under very heavy payloads and continuous fatigue loading, so the high yield strength and good weldability of S890Q help ensure long service life, enhanced safety, and reduced maintenance costs. The material's ability to resist deformation also contributes to improved stability and performance, especially in demanding logistics, construction, and mining applications.
Construction:
Within the construction industry, S890Q finds use in the construction of bridges, supporting structures, and high-stress frameworks. Its combination of ultra-high strength and toughness allows engineers to design lighter, more slender structures that still meet stringent safety and durability requirements. This is particularly beneficial for long-span bridges, high-rise buildings, and temporary but heavily loaded structures, where reducing dead load can lead to significant cost savings and improved structural efficiency.
Energy Sector:
In the energy sector, S890Q is utilized in the fabrication of supports for offshore wind turbines and drilling rigs. These structures are exposed to severe environmental conditions, including strong winds, high waves, and corrosive seawater. S890Q's high strength, good fatigue resistance, and relatively good toughness help ensure the reliability and longevity of these critical energy installations, contributing to the development of renewable and offshore energy resources.
Mechanical Engineering:
S890Q is also a preferred material in general mechanical engineering for parts that require extremely high strength and toughness. Applications include large gears, shafts, hydraulic cylinders, and other heavy-duty components operating under high pressure, impact, or cyclic loading. By using S890Q, designers can achieve higher load-carrying capacity and improved performance, while also reducing the overall size and weight of mechanical systems, which is crucial for modern, compact, and efficient machinery.
Full specification and details are available on request. The above information is provided for guidance purposes only. For specific design requirements please contact our technical sales staff.
What is S890Q?
S890Q is a high-strength quenched and tempered structural steel with a minimum yield strength of 890 MPa.
What are the key properties of S890Q?
It offers ultra-high strength, good toughness, excellent weldability, and good fatigue resistance.
What standards define S890Q?
S890Q is typically defined by European standards such as EN 10025-6.
In which industries is S890Q commonly used?
It is widely used in heavy machinery, transportation, construction, energy, and mechanical engineering.
What are typical applications of S890Q in heavy machinery?
It is used for excavator booms, crane components, chassis parts, and other high-stress structures.
Why is S890Q suitable for heavy transport vehicles?
Its high strength reduces vehicle weight while maintaining structural integrity and improving payload capacity.
How is S890Q used in construction?
It is used in bridges, high-rise structures, and other frameworks requiring high strength and reduced dead load.
What role does S890Q play in the energy sector?
S890Q is used in the energy sector for offshore wind turbine supports and drilling rig components. Its high strength and fatigue resistance allow lighter, durable structures that withstand harsh marine conditions.
What welding methods are compatible with S890Q?
Common methods include MMA, MIG/MAG, and TIG, with proper preheating and interpass temperature control.
What are the benefits of using S890Q?
Benefits include weight reduction, improved structural efficiency, enhanced safety, and higher load-carrying capacity.