Products Description
Q460C steel plate is a high-strength low-alloy steel plate that undergoes quenching and tempering heat treatment to achieve its high strength and toughness. The plate is tested for impact resistance at 0°C (32°F).
For different grades of Q460 steel, the Charpy V-notch impact test is conducted at varying temperatures: Q460D is tested at -20°C, Q460E at -40°C, and Q460F at -60°C. This differentiation in testing temperatures ensures that the steel plates maintain toughness and resistance to brittle fracture in diverse environmental conditions.
With a yield strength of ≥ 460 MPa and tensile strength ranging from 620–800 MPa, Q460C steel plate also offers an elongation of ≥ 18% in a 200mm sample, and a Charpy V-notch impact value of a minimum of 27J at 0°C.
These properties make it ideal for demanding applications, including heavy-duty construction, machinery manufacturing, and transportation sectors, where high strength and excellent performance in low temperatures are critical.
Mechnical property for GB/T 1591-2018 Q460C STEEL PLATE
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Mechanical Property for Q460C steel plate |
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Thickness (mm) |
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Yield strength (≥Mpa) |
T≤16 |
16<T≤40 |
40<T≤63 |
63<T≤80 |
80<T≤100 |
100<T≤150 |
150<T |
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460 |
450 |
430 |
410 |
410 |
390 |
390 |
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Tensile strength (Mpa) |
T≤100 |
100<T |
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550-720 |
530-700 |
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Chemical composition for GB/T 1591-2018 Q460C STEEL PLATE (Heat Analysis Max%)
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Main chemical elements composition of Q460C |
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C |
Si |
Mn |
P |
S |
Nb |
N |
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0.20 |
0.55 |
1.80 |
0.030 |
0.030 |
0.05 |
0.015 |
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V |
Ti |
Cr |
Ni |
Cu |
Mo |
B |
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0.13 |
0.05 |
0.30 |
0.80 |
0.40 |
0.20 |
0.004 |
Products Application
GB/T1591 Q460C steel plate is a high-strength low-alloy steel primarily used in the construction of bridges, highway infrastructure, and various engineering projects.
This steel plate is engineered to provide exceptional strength and durability, making it suitable for the demanding conditions found in large-scale construction applications.
In bridge construction, Q460C steel plate offers high load-bearing capacity and resilience to stress and vibration, ensuring that the structure can withstand the forces of heavy traffic and harsh weather conditions. Its toughness at low temperatures-proven through impact tests conducted at 0°C-makes it especially well-suited for regions with cold climates where other materials may become brittle.
In highway construction, the steel's excellent weldability and formability enable its use in a variety of components such as support beams, reinforced frames, and pavement foundation structures. Its ability to endure dynamic loading and fatigue from repeated vehicle movement ensures a long service life for roads and highways.
