What are the properties of S280GD steel?
|
Standards |
Equivalent grades |
illustrate |
|
Chinese national standard (GB/T) |
DX51D+Z(GB/T 2518) |
Similar coating and processing properties, but the yield strength needs to be confirmed (DX51D usually corresponds to lower strength). If strength matching is required, refer to S280GD+Z or S350GD+Z (there may be no direct correspondence in the national standard). |
|
American standard (ASTM) |
ASTM A653 CS Type B |
Commercial grade (CS) galvanized steel has similar strength, but the specific mechanical properties need to be checked. |
|
Japanese standard (JIS) |
SGCC(JIS G 3302) |
Ordinary galvanized steel sheets have slightly lower strength and need to be confirmed whether they meet the 280MPa requirement. |
|
International ISO |
ISO 3575 CR4 |
Cold rolled galvanized substrate, performance is close, but the yield strength needs to be verified. |
What is the material of S250GD+Z steel coil?
S280GD+Z is a high-strength hot-dip galvanized structural steel that complies with European standards (EN 10346). It has excellent mechanical properties and corrosion resistance and is widely used in construction, automobile manufacturing, home appliances and other industries.
S: Structural Steel
280: Minimum yield strength ≥280 MPa
GD: Hot-dip galvanized (Galvanized, D represents continuous galvanizing process)
+Z: Pure zinc coating (Zinc Coating)
What is the difference between S280GD+Z and SGCC?
|
Comparison items |
S280GD+Z |
SGCC |
|
Standard basis |
European standard EN 10346 |
Japanese standard JIS G 3302 |
|
Strength grade |
High strength (yield strength ≥ 280MPa) |
Ordinary strength (no strict yield strength requirements) |
|
Coating identification |
Z60/Z80 (60-80g/m² on both sides) |
G60/G90 (American standard unit, ≈60-90g/m²) |
|
Surface quality |
Smooth finish/small zinc flower (suitable for spraying) |
Ordinary zinc flower (general aesthetics) |
|
Main use |
Building load-bearing structures, automotive parts |
Household appliance shell, simple building |
|
Price positioning |
High (premium 15-25%) |
Economical (low-cost first choice) |
|
Corrosion resistance |
Excellent (customizable thick coating) |
Good (thin coating) |
S280GD+Z is a high-strength structural steel suitable for load-bearing scenarios; SGCC is an economical general plate used for non-load-bearing parts
S280GD+Z galvanized steel coil is used for?
|
Industry |
Application Scenario |
Application Advantages |
|
Construction engineering |
◼ Lightweight steel structure factory frame ◼ Load-bearing roof/wall trusses ◼ High-rise building curtain wall support structure |
✔ High strength (≥280MPa yield strength) ✔ Thick galvanized layer (Z80+) is corrosion-resistant and suitable for long-term outdoor use |
|
Automobile manufacturing |
◼ Door anti-collision beam ◼ Chassis reinforcement ◼ Truck body frame |
✔ Lightweight while ensuring structural strength ✔ Galvanized layer protects welding parts from rust |
|
Home appliance industry |
◼ Washing machine inner drum structure ◼ Refrigerator internal reinforcement frame ◼ Air conditioner outdoor unit shell |
✔ Balanced strength and formability (elongation ≥ 18%) ✔ Smooth surface suitable for spraying |
|
Industrial equipment |
◼ Heavy-duty storage racks ◼ Cable trays ◼ Ventilation duct systems |
✔ Good load-bearing capacity (rack beams) ✔ Resistant to humid environments (galvanized protection) |
|
Infrastructure |
◼ Highway noise barrier ◼ Photovoltaic support ◼ Substation box |
✔ Wind pressure/snow load resistance (high yield strength) ✔ More than 20 years of weather resistance (Z120 coating optional) |
