HX380LAD galvanized steel is a high-strength low-alloy (HSLA) galvanized steel. HX stands for high yield strength structural steel, 380 is the lower limit of yield strength for this grade, and LAD represents the coating adhesion level. Wanzhi Group offers commercial, deep-drawn, and extra-deep-drawn galvanized steel in various zinc coating thicknesses, ranging from Z20 to Z350g, in accordance with standards such as EN 10346, ASTM A653, and JIS G3302. Contact us for a free quote and samples!
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Chemical Composition
| Element |
C |
Si |
Mn |
P |
S |
Al |
Nb/Ti/V |
| Content Range |
≤0.10 |
≤0.50 |
1.0-1.8 |
≤0.03 |
≤0.025 |
0.02-0.08 |
0.02-0.10 |
Core Performance Parameters
| Performance |
Value |
| Yield Strength ReH |
≥380 MPa |
| Tensile Strength Rm |
480-630 MPa |
| Elongation A80mm |
≥18% (for thickness ≤3mm) |
| Coating Weight |
Double-sided zinc coating 40-140g/m² |
| Coating Structure |
Pure Zinc Layer (Z) |
HX380LAD + Z Processing Advantages
- High Strength: HX380LAD+Z galvanized steel boasts high tensile and yield strengths, allowing it to withstand heavy loads without deforming during processing.
- Deep Drawing Performance: LAD-grade ultra-deep drawing steel (r value ≥ 1.8, n value ≥ 0.20) is suitable for complex stampings.
- Corrosion Resistance: The zinc layer provides rust protection, protecting the steel from corrosion and rust in humid, acidic, and alkaline environments.
- Lightweight: HX380LAD’s high strength reduces weight.
- Welding Compatibility: Resistance welding and laser welding produce no zinc vapor porosity.
- Surface Quality: The surface is smooth and defect-free, suitable for high-end color coating.
HX380LAD+Z Galvanized Applications
- Automotive: Chassis brackets, door inner panels, B-pillars, sill beams, anti-collision beams, control arms, torsion beams, hood outer panels, and door inner panels
- Home appliance panels: Refrigerator side panels, washing machine housings and inner drums, refrigerator liners
- Building structures: Light steel keels, cable trays, photovoltaic mounting systems
- Electrical cabinets: Distribution boxes, 5G base station housings
Popular High-strength Low-alloy Steel Grades
| Grade |
Yield Strength (MPa) |
Characteristics |
| HX420LAD |
≥420 |
r value > 2.0 |
| HX460LA |
≥460 |
△σ ≥ 250 MPa |
| S550MC |
≥550 |
Controlled rolling and cooling |
| S700MC |
≥700 |
Lightweight limit |
| HSLAS 50 |
≥345 |
CEV ≤ 0.32% |
| HSLAS 70 |
≥483 |
-40℃ AKv ≥ 27J |
| HSLAS 100 |
≥690 |
Alternative to heat-treated steel |
| Q420MC |
S550MC |
Nb-V-Ti micro-alloying |
| Q550D |
HX550LAD |
S ≤ 0.002% |
| Q690E |
S700MC |
Online quenching |
HX380LAD, a deep-drawn, high-strength galvanized steel, achieves a perfect balance of strength, formability, and corrosion resistance. It is widely used in precision manufacturing applications such as automotive and home appliances. If you are looking for high-strength steel, please contact Wanzhi Group.
