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59 lines
2.9 KiB
Plaintext
59 lines
2.9 KiB
Plaintext
---
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title: Cold-Rolled Hot-Dip Galvanized Steel Sheet
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desc: Has good mechanical processing performance and corrosion resistance, suitable for construction, home appliances and other internal and external covering parts and structural parts that require formability and corrosion resistance.
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models:
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- GB/T2518, EN10346：DC(X)51D+Z, DC(X)52D+Z, DC(X)53D+Z, S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z
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- ASTM A653/A653M：CSA, CS B, FSA, FS B, SS230, SS255, SS275, SS340
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- JIS G3302：SGCC, SGCD, SGC340, SGC400, SGC440
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- 2011JX(15)：S390GD+Z, S450GD+Z
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images:
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- /images/product/20250318141214984.jpg
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spec:
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- 'Thickness: 0.35~2.0mm'
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- 'Width: 1000~1540mm'
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- 'Equal-Thickness Coating: Z60-Z450'
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packaging: Regular spangle, non-spangle
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slug: '7'
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---
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## Mechanical Properties
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| Purpose | Grade | Yield strength/Re/MPa | Tensile strength/Rm/MPa | Elongation/A80/% |
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| :--- | :--- | :--- | :--- | :--- |
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| **Commercial** | DC(X)51D·Z | 370-500 | — | ≥22 |
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| **Drawing** | DC(X)52D·Z | ≥290 | — | ≥26 |
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| **Deepdrawing** | DC(X)53D·Z | ≥420 | — | ≥30 |
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| **Structure** | S220GD·Z | ≥220 | ≥300 | ≥20 |
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| **Structure** | S250GD·Z | ≥250 | ≥330 | ≥19 |
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| **Structure** | S280GD·Z | ≥280 | ≥360 | ≥18 |
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| **Structure** | S320GD·Z | ≥320 | ≥390 | ≥17 |
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| **Structure** | S350GD·Z | ≥350 | ≥420 | ≥16 |
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| **Structure** | S390GD·Z | ≥390 | 460-620 | ≥15 |
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| **Structure** | S450GD·Z | ≥450 | 500-700 | ≥14 |
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---
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1. When there is no obvious yield, use Rp0.2; otherwise, use Rel for low carbon steel and ReH for structural steel.
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2. When the nominal thickness of the product is greater than 0.5mm but not greater than 0.7mm, the elongation is allowed to decrease by 2%; when the nominal thickness of the product is not greater than 0.5mm, the elongation is allowed to decrease by 4%.
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## Usage
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| Purpose | Grade | Yield strength/Re/MPa | Tensile strength/Rm/MPa | Elongation/A80/% |
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| :--- | :--- | :--- | :--- | :--- |
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| **Commercial** | CSA | 170-380 | — | ≥20 |
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| **Commercial** | CSB | 205-410 | — | ≥20 |
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| **Commercial** | CSC | 170-310 | — | ≥25 |
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| **Commercial** | FSK | 170-310 | — | ≥26 |
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| **Commercial** | CSN | 170-310 | — | ≥26 |
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| **Drawing** | S220 | — | ≥310 | ≥20 |
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| **Structure** | S255 | ≥255 | ≥360 | ≥18 |
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| **Structure** | S275 | ≥275 | ≥380 | ≥16 |
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| **Structure** | SS340¹ class1 | ≥340 | ≥460 | ≥12 |
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| **Structure** | SS340² class2 | ≥340 | ≥410 | ≥12 |
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| **Structure** | SS340³ class3 | ≥340 | ≥410 | ≥12 |
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| **Commercial** | SCC | — | ≥270 | ≥37 |
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| **Drawing** | SGC01 | — | ≥270 | ≥39 |
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| **Drawing** | SGC02 | — | ≥270 | ≥37 |
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| **Structure** | SGC340 | ≥245 | ≥340 | ≥20 |
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| **Structure** | SGC350 | ≥295 | ≥400 | ≥18 |
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| **Structure** | SGC440 | ≥355 | ≥440 | ≥18 |
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| **Structure** | SGC490 | ≥365 | ≥490 | ≥16 |
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