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![Dual phase steels](/images/uploads/f5754ef8-fccc-4aa6-9e52-64a6cdc668a3/dual-phase-steels-category-roll-formed-profiles-1920x1080.jpg)

Category · 4 grades

# Dual phase steels

Dual phase steels are steels with a ferritic matrix containing a dispersed martensitic phase. This combination provides a balance of strength, ductility and formability, making them suitable for formed structural and safety components, especially in vehicle bodies.

| Grade | Material no. | B | C | Al | Si | P | S |
|---|---|---|---|---|---|---|---|
| [HCT500X](/materials/din-en/hct500x "HCT500X") | [1.0939](/materials/material-no/1.0939 "1.0939") | ≤0,005 | ≤0,14 | ≤2,00 | ≤0,80 | 0,08 | 0,015 |
| [HCT600X](/materials/din-en/hct600x "HCT600X") | [1.0941](/materials/material-no/1.0941 "1.0941") | ≤0,005 | ≤0,17 | ≤2,00 | ≤0,80 | 0,08 | 0,015 |
| [HCT780X](/materials/din-en/hct780x "HCT780X") | [1.0943](/materials/material-no/1.0943 "1.0943") | ≤0,005 | ≤0,18 | ≤2,00 | ≤0,80 | 0,08 | 0,015 |
| [HCT980X](/materials/din-en/hct980x "HCT980X") | [1.0944](/materials/material-no/1.0944 "1.0944") | ≤0,005 | ≤0,23 | ≤2,00 | ≤0,80 | 0,08 | 0,015 |

## Standards covering this category

 1

- [**DIN / EN***4 grades*](/materials/din-en "DIN / EN — 4 grades in this category")

## Property ranges

 1

| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| rho | g/cm³ | 7.85 | 7.85 | 4 |

Derived from 4 grades in this category with a recorded value.

## Composition range

 8

| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| B | % | 0.005 | 0.005 | 4 |
| C | % | 0.14 | 0.23 | 4 |
| Al | % | 2 | 2 | 4 |
| Si | % | 0.8 | 0.8 | 4 |
| P | % | 0.08 | 0.08 | 4 |
| S | % | 0.015 | 0.015 | 4 |
| V | % | 0.2 | 0.2 | 4 |
| Mn | % | 2 | 2.5 | 4 |

Derived from 4 grades in this category with a recorded value.