S690 / S690QL / S690QL1 High Yield Strength Steel Plate
S690, S690QL, and S690QL1 are high yield strength steel plates that are used in various industries due to their exceptional toughness and strength. These plates have a minimum yield strength of 690 MPa and are known for their excellent weldability and formability.
One of the primary uses of S690, S690QL, and S690QL1 high yield strength steel plates is in the construction industry. Due to their high strength, these plates are essential for constructing strong and durable structures such as bridges, high-rise buildings, and heavy-duty machinery.
Moreover, these plates are also commonly used in the mining and energy sectors. They are frequently used to construct drilling rigs, mining equipment, and oil rigs due to their ability to withstand high pressure and extreme weather conditions.
In addition to their exceptional strength, S690, S690QL, and S690QL1 high yield strength steel plates are also known for their high resistance to abrasion and corrosion. They are particularly useful in marine applications, where the harsh saltwater environment can quickly cause corrosion and damage to the metal.
Mechnical property for S690QL1 steel plate:
| Thickness (mm) | |||
| S690QL1 | ≥ 3 ≤ 50 | > 50 ≤ 100 | > 100 |
| Yield strength (≥Mpa) | 690 | 650 | 630 |
| Tensile strength (Mpa) | 770-940 | 760-930 | 710-900 |
Chemical composition for S690QL1 steel plate (Heat Analysis Max%)
| Main chemical elements composition of S690QL1 steel plate | |||||||
| C | Si | Mn | P | S | N | B | Cr |
| 0.20 | 0.80 | 1.70 | 0.020 | 0.010 | 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 | |
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S690 / S690QL / S690QL1 distinction
S690, S690QL, and S690QL1 are high yield strength steel plates that are commonly used in various industries for their superior strength and toughness. Although they are similar in many ways, there are some differences that set them apart from each other.
S690 is a high strength structural steel that offers excellent weldability, formability, and toughness. It is used in a wide range of applications, including bridges, buildings, construction equipment, and offshore structures.
S690QL is a specialized high strength steel plate that is designed to withstand extreme conditions. It offers excellent strength and toughness at low temperatures and is often used in heavy-duty machinery, mining equipment, and other demanding applications.
S690QL1 is an enhanced version of S690QL, with even higher strength and toughness. It is specially designed to withstand harsh environments and extreme conditions, making it well-suited for use in offshore oil and gas platforms, pressure vessels, and other applications where strength and durability are critical.
Despite their differences, all three grades of steel offer exceptional strength, toughness, and durability, making them ideal for a wide range of applications. They are also known for their high weldability, making them easy to work with and fabricate.
In conclusion, S690, S690QL, and S690QL1 are high yield strength steel plates that offer superior strength, toughness, and durability. Each grade is designed for specific applications, but all are known for their excellent weldability and reliability.
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