Q460NE high strength low alloy steel is used for engineering and general structural high-strength steel structural parts with low temperature impact performance requirements. Mainly used to manufacture bridges, ships, vehicles, boilers, high-pressure vessels, oil and gas pipelines, large steel structures, etc.
Q460NE Low Alloy Steel Chemical Composition:
|
C |
Si |
Mn |
P |
S |
Nb |
V |
|
0.20 |
0.60 |
1.00-1.70 |
0.025 |
0.020 |
0.01-0.05 |
0.01-0.20 |
|
Ti |
Cr |
Ni |
Cu |
Mo |
N |
Als Min. |
|
0.006-0.05 |
0.30 |
0.80 |
0.40 |
0.10 |
0.025 |
0.015 |
Q460NE Low Alloy Steel Material Mechanical properties:
|
|
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≤200 |
200<T |
|
460 |
440 |
430 |
410 |
400 |
380 |
370 |
370 |
|
|
Tensile strength (Mpa) |
T≤100 |
100<T≤200 |
200<T |
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|
540-720 |
530-710 |
510-690 |
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Q460NE steel plate is a high-strength low-alloy steel. In the grade designation Q460NE, "Q" represents the first uppercase letter of the Chinese phonetic abbreviation for yield strength; "460" denotes 460 megapascals (MPa), where "mega" means 10⁶ and "pascal" is the unit of pressure; thus, Q460 indicates that the steel will undergo plastic deformation when the stress reaches 460 MPa, meaning it will retain the deformed shape after external forces are removed and cannot return to its original form. This strength is higher than that of ordinary steel. "N" stands for normalized or normalizing rolled, and "E" indicates quality grade E (grades include C, D, E).
Production and Cutting Process Flow of Q460NE Steel Plate
Production process: Primary smelting → LF refining → VD treatment → Continuous casting (ingot casting) → Cleaning, heating → Rolling → (Stacking) → Surface inspection → Batching → Ultrasonic testing → Heat treatment → Cutting and sampling → Performance testing → Storage.
The production process of Q460NE steel plate involves first producing molten steel with higher carbon content using a converter, followed by secondary refining via converter or electric furnace, microalloying treatment, and finally controlled rolling and controlled cooling to obtain the required specifications.
The smelting method for Q460NE steel plate is converter or electric furnace smelting, with external refining performed if necessary. Unless otherwise specified by the purchaser and noted in the contract, the smelting method is generally at the discretion of the supplier.
The surface quality requirements for Q460NE steel plate stipulate that the surface shall be free from harmful defects such as bubbles, scars, cracks, folds, inclusions, and embedded scale that may affect usability. The steel plate shall exhibit no visible delamination.
The application scope of Q460NE steel plate includes engineering projects and general structural high-strength steel components requiring low-temperature impact performance, such as bridges, ships, vehicles, boilers, high-pressure vessels, oil and gas transmission pipelines, and large steel structures.
In summary, Q460NE steel plate is a high-strength low-alloy steel with high yield strength and tensile strength, good plasticity and toughness, and a broad range of applications. It is primarily used in the manufacturing of bridges, ships, vehicles, boilers, high-pressure vessels, oil and gas transmission pipelines, and large steel structures.
