S960Q is a high‑strength quenched and tempered structural steel valued for its toughness, weldability, and formability. It is used in heavy machinery, lifting equipment, and high‑load structures where reliable strength and good ductility are required.
S960Q quenched and tempered steel plate Chemical composition
| Grade | C % | Si % | Mn % | P % | S % | N % | B % | Cr % |
| S960Q | 0.200 | 0.800 | 1.700 | 0.025 | 0.015 | 0.015 | 0.005 | 1.500 |
| Cu % | Mo % | Nb % | Ni % | Ti % | V % | Zr % | ||
| 0.500 | 0.700 | 0.060 | 2.000 | 0.050 | 0.120 | 0.150 |
S960Q quenched and tempered steel plate mechanical properties
| Grade | Thickness(mm) | Min Yield (Mpa) | Tensile(MPa) | Elongation (%) | Min Impact Energy | |
| S960Q | 8mm-50mm | Min 960Mpa | 980-1150Mpa | 10% | -20 | Min 30J |
| 51mm-100mm | Min 910Mpa | 920-1000Mpa | 10% | -20 | Min 30J | |
| 101mm-150mm | Min 860Mpa | 870-980Mpa | 10% | -20 | Min 30J |
Key Advantages
Superior Strength-to-Weight Ratio: S960Q allows for the use of thinner plates without compromising load-bearing capacity. This can lead to weight savings of up to 60% in tensile and bending applications compared to standard structural steels.
Economic & Operational Efficiency:
Reduced Lifetime Costs: While initial material costs are higher, S960Q reduces long-term expenses through lower fuel consumption for mobile machinery and reduced maintenance due to its high fatigue resistance.
Lower Foundation Costs: In civil engineering, lighter structures place less stress on the ground, significantly reducing foundation and piling requirements.
Excellent Low-Temperature Toughness: Specifically designed to resist brittle fracture in extreme environments, it maintains high impact energy even at -20°C.
Enhanced Sustainability: Lighter equipment requires less material to manufacture and less energy to operate, directly lowering the carbon footprint of transport and construction fleets. many producers are offering "green steel" versions of high-strength grades to meet net-zero targets.
Core Applications
Mobile Lifting & Cranes: Critical for high-reach crane booms and telescopic arms where weight reduction directly increases lifting capacity and reach.
Heavy Duty Transportation: Construction of lightweight truck chassis, trailers, and tippers to maximize payload efficiency and meet 2026 fuel economy standards.
Civil Infrastructure:
Long-Span Bridges: Enables longer spans with fewer supports, minimizing environmental impact on waterways.
Skyscrapers: Used in slender columns and trusses to maximize internal usable space.
Energy & Mining:
Mining Machinery: Found in excavator buckets and dumper bodies to withstand extreme abrasion and heavy impact loads.
Renewable Energy: Structural supports for offshore wind turbines and solar arrays that require durability in harsh marine or high-wind environments.
Defense & Aerospace: Used in armored vehicles and aircraft components where high mobility and ballistic protection are required.
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If you have project requirements for S960Q , we welcome your inquiry. GNEE maintains a large inventory of commonly used high strength steel grades for your selection.For detailed mechanical properties, chemical composition, and technical data, as well as free samples, please contact our factory immediately. We offer competitive prices, stable quality, and professional service. Email:beam@gneesteelgroup.com.
What is the minimum yield strength of S960Q?
The minimum yield strength of S960Q is 960 megapascals (MPa). This high strength makes it ideal for load-bearing components in demanding engineering projects, ensuring structural stability under heavy loads.
What is the tensile strength range of S960Q?
The tensile strength of S960Q ranges from 1050 to 1250 MPa. This range ensures it can withstand high tensile forces, making it suitable for components subjected to extreme mechanical stress.
Is S960Q corrosion-resistant?
S960Q has basic corrosion resistance, similar to carbon steel. For harsh environments (marine, chemical), it needs protective measures like painting, galvanizing, or corrosion-resistant coatings.
What is the impact energy of S960Q?
At -20℃, S960Q's minimum impact energy (Charpy V-notch) is 30 J. This ensures it can absorb energy without brittle fracture under sudden impact loads in normal working conditions.
What is the temperature range for S960Q service?
S960Q is suitable for service temperatures from -40℃ to 200℃. Beyond this range, its mechanical properties may degrade, so high or low-temperature applications need special evaluation.
What is the carbon content of S960Q?
S960Q has a maximum carbon content of 0.20%. Low carbon content ensures weldability and toughness, while alloying elements compensate to achieve the high 960 MPa yield strength.
Does S960Q need surface treatment?
Surface treatment is not mandatory but recommended for corrosion protection. Options include painting, powder coating, or galvanizing, especially for outdoor or harsh-environment applications.
What is the supply condition of S960Q?
S960Q is supplied in quenched and tempered (Q&T) condition. Suppliers provide test certificates (EN 10204 3.1 or 3.2) to confirm compliance with mechanical and chemical property requirements.
Is S960Q a quenched and tempered steel?
Yes, S960Q is a quenched and tempered steel. Quenching heats it to high temperature and cools rapidly, while tempering reduces brittleness, achieving a balance of high strength and toughness.
Can S960Q be bent?
Yes, S960Q can be bent, but with strict radius control. The minimum bend radius is usually 3-5 times the plate thickness. Preheating may be needed for thick plates to avoid cracking during bending.
Does S960Q require heat treatment?
Yes, S960Q undergoes quenching and tempering (Q&T) as standard heat treatment. This process enhances its strength, hardness, and toughness, meeting the high-performance requirements of engineering applications.