Low-Alloy High-Strength Steel Plate (HSLA)
TAGS: HSLA Steel Plate | Construction Structures | High Yield Steel
Low-alloy high-strength steel plate (HSLA) is a premium structural steel offering superior strength and ductility with a lower alloy content. Thanks to its unique metallurgical composition, it provides significantly higher yield strength while remaining lighter than traditional high-strength carbon steels.
Core Specifications & Properties
1. Typical Steel Types & Grades
China Standards: Q345B, Q420B, 16Mn, 20MnV, etc. Listed under GB/T 700-2006, these grades represent low-alloy structural steel with precise carbon limits.
International Equivalents: ASTM A572, EN10025 (S275, S355JR), DIN 17100.
2. Rolling Range & Production
Produced via precise Hot Rolling (for thicker, structural demands) or Cold Rolling (for better surface finish and precise tolerances).
Standard Thickness Range: 8 mm – 60 mm.
3. Main Applications
Due to exceptional weldability and processing capabilities, these plates are the standard for critical structural engineering: main frames of bridges, commercial building columns, heavy machinery, and shipbuilding frameworks.
4. Surface Treatment Options
To maximize lifespan against oxidation, BEBON offers comprehensive surface treatments including Hot-dip Galvanization and Industrial Painting (Primer Coating) to improve corrosion resistance.
Available HSLA Steel Grades by Standard
We supply a massive inventory of low-alloy steel plates corresponding to major global standards. Please review the comprehensive equivalent grade matrix below:
| Standard | Available Steel Grades |
|---|---|
| DIN 17100 / DIN 17102 (European Norm) |
St44-2, St44-3, St52-3, St50-2, St60-2, St70-2 StE285, WStE285, TstE285, EstE285 StE315, WstE315, TstE315, EstE315 StE355, WstE355, TstE355, EstE355 StE420, WstE420, TstE420, EstE420 StE460, WstE460, TstE460, EstE460 StE500, WstE500, TstE500, EstE500 |
| EN 10025 (European Standard) |
S275JR, S275J0, S275J2, S355JR, S355J0, S355J2, S355K2, S450J0 S275M, S275ML, S355M, S355ML, S420M, S420ML, S460M, S460ML S275N, S275NL, S355N, S355NL, S420N, S420NL, S460N, S460NL |
| ASTM / ASME (American Standard) |
A572 / SA572: Grade 42, Grade 50, Grade 60, Grade 65 A633 / SA633: Grade A, Grade C, Grade D, Grade E A709 / SA709: Grade 36, Grade 50, Grade 50W, Grade HPS 50W, Grade HPS 70W |
| GB/T 1591 (Chinese Standard) |
Q295A, Q295B Q345A, Q345B, Q345C, Q345D, Q345E Q390A, Q390B, Q390C, Q390D, Q390E Q420A, Q420B, Q420C, Q420D, Q420E Q460A, Q460B, Q460C, Q460D, Q460E |
| JIS G3106 (Japanese Standard) |
SM490A, SM490B, SM490C, SM490YA, SM490YB, SM520B, SM520C, SM570 |