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| After-sales Service: | Online |
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| Warranty: | 1 Year |
| Standard: | ASTM, JIS, GB, AISI, DIN, BS |
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High Precision 0.2 0.4 0.6 0.8 mm Thickness Galvanized Steel Coil Gi for Container Plate Anti-Finger Printing SECC Steel Roofing Sheet ManufacturerS450GD steel sheet is a high-strength, hot-dip coated structural steel defined by the European standard DIN EN 10346. It is primarily used in construction and engineering for load-bearing components that require a combination of high strength and corrosion resistance.
1. Grade Designation Meaning
S: Structural steel
450: Minimum yield strength (450 MPa)
G: Guaranteed minimum yield strength
D: Flat product (sheet/plate/coil)
+Z / +ZM / +AZ: Coating type (often added after the grade)
+Z: Pure zinc coating (galvanized)
+ZM: Zinc-magnesium alloy coating
+AZ: Aluminum-zinc alloy coating
2. Key Properties
Mechanical Properties (Minimum Values)
| Property | Value |
| Yield Strength (Rp0.2) | ≥ 450 MPa |
| Tensile Strength (Rm) | 510 - 650 MPa |
| Elongation (A80) | ≥ 14% |
| Element | C | Si | Mn | P | S |
| Max % | 0.20 | 0.60 | 1.70 | 0.10 | 0.045 |
3. Typical Specifications
Standard: EN 10346
Material Number (W.Nr.): 1.0233
Thickness: Typically 0.3 - 3.0 mm
Width: Typically 900 - 1500 mm
Coating Mass: Common options include Z60, Z100, Z200, Z275 (grams per square meter)
Surface Treatment: Passivated, Oiled, or Passivated + Oiled
4. Main Applications
Structural Profiles: Purlins, rails, and framing for large-span buildings.
Solar Panel Supports: Photovoltaic (PV) mounting structures.
Heavy-Duty Construction: Crane runways, storage systems, and industrial flooring.
Transportation: Truck bodies and trailers.
Agricultural Structures: Grain silos and machinery.
5. Advantages
High Strength: Reduces material thickness and weight compared to lower grades (e.g., S350GD).
Good Ductility: Adequate elongation for forming and bending.
Corrosion Resistance: Metallic coating provides long-term protection in harsh environments.
Cost-Effective: High strength-to-weight ratio optimizes material costs.
Galvanized Steel Coil is a high-quality product made of steel, zinc-coated and hot dipped. It has excellent hardness, durability and processing service with HRB60-95. Galvanized steel sheet is highly adaptable and can be used for welding, punching, cutting, bending and decoiling. It also has great elongation rate from 16-30% and yield strength from 180-400MPa. The main material is DX51D and DX52D, making the Galvanized Steel Sheet a perfect choice for projects that require high-quality and long-lasting steel.
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Product Name
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Galvanized Steel Coil
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Grade
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DX51D+Z,DX52D+Z,DX53D+Z,DX54D+Z,DX56D+Z
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S250GD+Z,S280GD+Z,S350GD+Z,S550GD+Z
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SGCC,SGCD,SGCE
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Standard
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ASTM,AISI ,JIS,DIN,GB,EN,etc.
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Zinc coated
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30-275g/m2
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Spangle
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Large Spangles,Regular Spangles,Small Spangles,Zero Spangles
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Surface treatment
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Chromated,oiled/non-oiled and anti-finger printing
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Thickness
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0.3-3.0 mm or as required
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Width
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600-1250 mm or as required
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MOQ
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5TONS
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Substrate
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Cold rolled ,Hot rolled
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Tolerance
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Thickness:±0.01mm
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Width:±2mm
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Packaging
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Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
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Application
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construction,decoration,hardware,electric appliances,machinery and other industrial and civil purposes,such as electronic capacitor,composite cooker,rice cooker,refrigerator, computer casting,telecommunication,equipment,lamp shade,air conditioner,cosmetics cover and so on.
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Container size |
20ft GP:5898MM(Length)*2352mm(Width)*2393mm(High) 40ft GP:12032mm(Length)*2352mm(Width)*2393mm(High) 40ft HC:12032mm(Length)*2352mm(Width)*2393mm(High) |
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STEEL
GRADE
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CHEMICAL COMPOSITION %
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MECHANIC PROPERTY
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C.B OF COATING
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C
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Si
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Mn
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S
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p
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T.S
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Y.S
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E.L
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x103
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x103
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x102
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x103
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x103
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Mpa
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Mpa
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%
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d=180
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JIS G3302
SGCC
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12
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30
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41
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31
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21
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480
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300
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13
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OK
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JIS G3302
SGCH
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12
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10
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21
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18
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6
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680
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650
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20
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OK
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ASTM 653
CS.B
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29
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30
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60
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35
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30
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386
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250-380
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20
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OK
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DX51D+Z
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20
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21
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18
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1.8
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11
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355
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245
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38
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OK
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G550
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12
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6
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73
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5
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17
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715
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654
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8
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OK
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Q: What are the details of your after sales service?
A:1) We provide the necessary technical support to all of our customers, such as material performance and heat treatment data advice.
2) We provide the appropriate steel material technical parameters for customers in Germany, The USA, Japan, Britain, and other countries.
Q: How could I get a sample?
A: Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.
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