High-strength Low-alloy Steel
SUNLAKE High-strength Low-alloy Steel
SUNLAKE is a reliable High-strength Low-alloy Steel supplier in China. It maintains close contact with Chinese steel mills and helps customers find the most suitable steel resources.

Low-alloy high-strength steel is made by adding a small amount of niobium and/or titanium and other alloying elements to low-carbon steel, so that they form carbides and nitrides with carbon, nitrogen and other elements and precipitate on the ferrite matrix to improve the strength of the steel. This kind of steel has good formability and high strength and is mainly used for structural parts such as car seats and beams.
SUNLAKE High-strength Low-alloy Steel
Uncoated HSLA steel available grades and properties
| Grade | Tensile Properties | Dimensions | ||||
| YS RP0.2,MPa |
TS Rm,Mpa |
EL% A80mm,% (≥) |
n90 (≥) |
thickness(mm) | width(mm) | |
| HC260LA | 260~330 | 350~430 | 26 | 0.14 | 0.3~3.5 | 700~1830 |
| HC300LA | 300~380 | 380~480 | 23 | 0.14 | 0.3~3.5 | 700~1830 |
| HC340LA | 340~420 | 410~510 | 21 | 0.12 | 0.3~3.5 | 700~1830 |
| HC380LA | 380~480 | 440~570 | 19 | 0.12 | 0.3~3.5 | 700~1830 |
| HC420LA | 420~520 | 470~600 | 17 | 0.11 | 0.3~3.5 | 700~1830 |
| HC460LA | 460~580 | 510~660 | 15 | 0.10 | 0.3~3.5 | 700~1830 |
| HC500LA | 500~620 | 550~700 | 14 | - | 0.3~3.5 | 700~1830 |
| HC550LA | 550~700 | ≥620 | 11 | - | 0.3~3.5 | 700~1830 |
| HC600LA | ≥600 | 650~800 | 10 | - | 0.3~3.5 | 700~1830 |
| HC700LA | ≥700 | 750~900 | 9 | - | 0.3~3.5 | 700~1830 |
| HC800LA | ≥800 | 850~1000 | 8 | - | 0.3~3.5 | 700~1830 |
Please confirm the ordering standards and technical parameters when placing a formal order. Specific data can be negotiated. Can provide products that comply with European standards, American standards, Japanese standards, Australian standards, etc.
Galvanized HSLA steel available grades and properties
| Grade | Tensile Properties | Dimensions(GI) | Dimensions(ZF/ZM/XM) | Dimensions(EG) | |||||
| YS RP0.2,MPa |
TS Rm,Mpa |
EL% A80mm,% (≥) |
thickness(mm) | width(mm) | thickness(mm) | width(mm) | thickness(mm) | width(mm) | |
| HC260LAD+Z | 260~330 | 350~430 | 26 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC260LAD+ZF/ZM | 24 | 0.3~3.0 | 800~1830 | ||||||
| HD260LAD+Z | ≥260 | ≥350 | 23 | 1.5~4.0 | 800~1830 | - | - | ||
| HC300LAD+Z | 300~380 | 380~480 | 23 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC300LAD+ZF/ZM/XM | 21 | 0.3~3.0 | 800~1830 | ||||||
| HD300LAD+Z | ≥300 | ≥380 | 20 | 1.5~4.0 | 800~1830 | - | - | - | - |
| HC340LAD+Z | 340~420 | 410~510 | 21 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC340LAD+ZF/ZM/XM | 19 | 0.3~3.0 | 800~1830 | ||||||
| HD340LAD+Z | ≥340 | ≥410 | 18 | 1.5~4.0 | 800~1830 | - | - | - | - |
| HC380LAD+Z | 380~480 | 440~560 | 19 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC380LAD+ZF/ZM/XM | 17 | 0.3~3.0 | 800~1830 | ||||||
| HD380LAD+Z | ≥380 | ≥440 | 16 | 1.5~4.0 | 800~1830 | - | - | - | - |
| HC420LAD+Z | 420~520 | 470~590 | 17 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC420LAD+ZF/ZM/XM | 15 | 0.3~3.0 | 800~1830 | ||||||
| HD410LAD+Z | ≥410 | ≥480 | 15 | 1.5~4.0 | 800~1830 | - | - | - | - |
| HC460LAD+Z | 460~560 | 500~640 | 15 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC460LAD+ZF/ZM/XM | 13 | 0.3~3.0 | 800~1830 | ||||||
| HD460LAD+Z | ≥460 | ≥500 | 12 | 1.5~4.0 | 800~1830 | - | - | - | - |
| HC500LAD+Z | 500~620 | 530~690 | 13 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HC500LAD+ZF/ZM | 11 | 0.3~3.0 | 800~1830 | ||||||
| HD500LAD+Z | ≥500 | ≥530 | 11 | 1.5~4.0 | 800~1830 | - | - | - | - |
| HC550LAD+Z | 550~700 | ≥610 | 11 | 0.3~3.0 | 800~1830 | 0.3~2.0 | 800~1830 | ||
| HD550LAD+Z | 550~650 | ≥610 | 13 | 1.5~4.0 | 800~1830 | - | - | - | - |
Please confirm the ordering standards and technical parameters when placing a formal order. Specific data can be negotiated. Can provide products that comply with European standards, American standards, Japanese standards, Australian standards, etc.
SUNLAKE High-strength Low-alloy Steel Excellent Properties
Enhanced Strength
HSLA steel offers superior strength compared to conventional carbon steel. It is specifically formulated to provide increased tensile strength, yield strength, and overall structural integrity. This makes it suitable for applications that require high load-bearing capacity and resistance to deformation.
Improved Toughness
HSLA steel exhibits excellent toughness, allowing it to withstand impacts, shocks, and vibrations without failure. This toughness is achieved through a combination of alloying elements and controlled microstructure, making it an ideal choice for critical structural components subjected to dynamic loads.
Superior Weldability
HSLA steel is known for its excellent weldability, enabling easy and efficient fabrication processes. It can be welded using various techniques, including arc welding, resistance welding, and laser welding, while maintaining its mechanical properties and structural integrity. This makes it a preferred choice for manufacturing industries seeking efficient and reliable welding solutions.
Increased Corrosion Resistance
HSLA steel possesses improved corrosion resistance compared to traditional carbon steels. The addition of alloying elements, such as copper, chromium, and nickel, enhances its ability to withstand exposure to corrosive environments, including marine, industrial, and atmospheric conditions. This makes it suitable for applications requiring long-term durability and resistance to rust and corrosion.
Weight Reduction
HSLA steel allows for weight reduction in structural designs without compromising strength and performance. Its high strength-to-weight ratio enables the construction of lighter structures and components, leading to benefits such as improved fuel efficiency in transportation applications, increased payload capacity, and easier handling and installation.
Cost-Effective Solution
HSLA steel offers a cost-effective solution for industries seeking high-performance materials. Its combination of strength, toughness, and corrosion resistance provides long-term durability and reduces the need for frequent maintenance and replacement. Additionally, its efficient fabrication and welding properties contribute to overall cost savings in manufacturing processes.
SUNLAKE Automotive applications for High-strength Low-alloy Steel
Cold-rolled low-alloy high-strength steel (HSLA steel) has the characteristics of high yield strength and yield-to-strength ratio, good forming and welding properties, etc. It has higher yield strength than carbon structural steel, and has higher yield strength than dual-phase steel and other advanced high-strength steels. Because of its lower cost, it is favored by the market and is widely used in structural parts in automobiles, home appliances, construction and other industries. Among them, it is the most prominent in automobile lightweight applications, especially with the rapid development of domestic independent brand cars and new energy vehicles. cost-effective (low-cost, high-performance) cold-rolled low-alloy high-strength steel plays an important role.

Structural Components
Fuel Tanks
Suspension Systems
Seating Components
Wheel Discs
Transmission and Drivetrain Components
Exhaust Systems
Safety Components
Contact us now to harness the power of High-strength Low-alloy Steel and elevate your projects to unprecedented levels of success. Let us be your partner in innovation and reliability.
We're well-known as one of the leading high-strength low-alloy steel manufacturers and suppliers in China. Welcome to buy high quality high-strength low-alloy steel at competitive price from our factory. Contact us for more details.
demand zinc aluminum magnesium steels, zinc aluminum magnesium steels, evaluation zinc aluminum magnesium steels