---
title: Cold-Rolled Hot-Dip Galvanized Steel Sheet
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.
models: 
  - 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
  - ASTM A653/A653M：CSA, CS B, FSA, FS B, SS230, SS255, SS275, SS340
  - JIS G3302：SGCC, SGCD, SGC340, SGC400, SGC440
  - 2011JX(15)：S390GD+Z, S450GD+Z
images: 
  - /images/product/20250318141214984.jpg
spec: 
  - 'Thickness: 0.35~2.0mm'
  - 'Width: 1000~1540mm'
  - 'Equal-Thickness Coating: Z60-Z450'
packaging: Regular spangle, non-spangle
slug: '7'
---

## Mechanical Properties
| Purpose | Grade | Yield strength/Re/MPa | Tensile strength/Rm/MPa | Elongation/A80/% |
| :--- | :--- | :--- | :--- | :--- |
| **Commercial** | DC(X)51D·Z | 370-500 | — | ≥22 |
| **Drawing** | DC(X)52D·Z | ≥290 | — | ≥26 |
| **Deepdrawing** | DC(X)53D·Z | ≥420 | — | ≥30 |
| **Structure** | S220GD·Z | ≥220 | ≥300 | ≥20 |
| **Structure** | S250GD·Z | ≥250 | ≥330 | ≥19 |
| **Structure** | S280GD·Z | ≥280 | ≥360 | ≥18 |
| **Structure** | S320GD·Z | ≥320 | ≥390 | ≥17 |
| **Structure** | S350GD·Z | ≥350 | ≥420 | ≥16 |
| **Structure** | S390GD·Z | ≥390 | 460-620 | ≥15 |
| **Structure** | S450GD·Z | ≥450 | 500-700 | ≥14 |

---

1. When there is no obvious yield, use Rp0.2; otherwise, use Rel for low carbon steel and ReH for structural steel.
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%.

## Usage
| Purpose | Grade | Yield strength/Re/MPa | Tensile strength/Rm/MPa | Elongation/A80/% |
| :--- | :--- | :--- | :--- | :--- |
| **Commercial** | CSA | 170-380 | — | ≥20 |
| **Commercial** | CSB | 205-410 | — | ≥20 |
| **Commercial** | CSC | 170-310 | — | ≥25 |
| **Commercial** | FSK | 170-310 | — | ≥26 |
| **Commercial** | CSN | 170-310 | — | ≥26 |
| **Drawing** | S220 | — | ≥310 | ≥20 |
| **Structure** | S255 | ≥255 | ≥360 | ≥18 |
| **Structure** | S275 | ≥275 | ≥380 | ≥16 |
| **Structure** | SS340¹ class1 | ≥340 | ≥460 | ≥12 |
| **Structure** | SS340² class2 | ≥340 | ≥410 | ≥12 |
| **Structure** | SS340³ class3 | ≥340 | ≥410 | ≥12 |
| **Commercial** | SCC | — | ≥270 | ≥37 |
| **Drawing** | SGC01 | — | ≥270 | ≥39 |
| **Drawing** | SGC02 | — | ≥270 | ≥37 |
| **Structure** | SGC340 | ≥245 | ≥340 | ≥20 |
| **Structure** | SGC350 | ≥295 | ≥400 | ≥18 |
| **Structure** | SGC440 | ≥355 | ≥440 | ≥18 |
| **Structure** | SGC490 | ≥365 | ≥490 | ≥16 |
