Quality	Rolling type	Steel type	Surface finishing
CR290Y490T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR330Y590T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR440Y780T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR500Y780T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR590Y980T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR700Y980T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR780Y1180T-DP	cold rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
HR330Y580T-DP	hot rolled	Dual phase	+EG, +GI, +GA, +AS, +ZM	Details
CR330Y590T-DH	cold rolled	Dual phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR440Y780T-DH	cold rolled	Dual phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR700Y980T-DH	cold rolled	Dual phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR780Y1180T-DH	cold rolled	Dual phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR600Y980T-FH	cold rolled	Multiphase with high global formability	+EG, +GI, +GA, +AS, +ZM	Details
CR850Y1180T-FH	cold rolled	Multiphase with high global formability	+EG, +GI, +GA, +AS, +ZM	Details
CR570Y780T-CP	cold rolled	Complex phase	+EG, +GI, +GA, +AS, +ZM	Details
CR780Y980T-CP	cold rolled	Complex phase	+EG, +GI, +GA, +AS, +ZM	Details
CR900Y1180T-CP	cold rolled	Complex phase	+EG, +GI, +GA, +AS, +ZM	Details
HR660Y760T-CP	hot rolled	Complex phase	+EG, +GI, +GA, +AS, +ZM	Details
HR750Y950T-CP	hot rolled	Complex phase	+EG, +GI, +GA, +AS, +ZM	Details
CR780Y980T-CH	cold rolled	Complex phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR900Y1180T-CH	cold rolled	Complex phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR1000Y1370T-CH	cold rolled	Complex phase with improved formability	+EG, +GI, +GA, +AS, +ZM	Details
CR860Y1100T-MS	cold rolled	Martensite phase	+EG, +GI, +GA, +AS, +ZM	Details
CR950Y1200T-MS	cold rolled	Martensite phase	+EG, +GI, +GA, +AS, +ZM	Details
CR1030Y1300T-MS	cold rolled	Martensite phase	+EG, +GI, +GA, +AS, +ZM	Details
CR1220Y1500T-MS	cold rolled	Martensite phase	+EG, +GI, +GA, +AS, +ZM	Details
CR1350Y1700T-MS	cold rolled	Martensite phase	+EG, +GI, +GA, +AS, +ZM	Details
HR900Y1180T-MS	hot rolled	Martensite phase	+EG, +GI, +GA, +AS, +ZM	Details
HR300Y450T-FB	hot rolled	Ferritic-bainitic	+EG, +GI, +GA, +AS, +ZM	Details
HR440Y580T-FB	hot rolled	Ferritic-bainitic	+EG, +GI, +GA, +AS, +ZM	Details

The VDA 239-100 standard specifies the requirements for innovative steel grades for demanding industrial applications. These include dual-phase steels, multiphase steels, complex-phase steels and martensitic-phase steels in different production variants. These steels are characterized by an optimized combination of strength and formability and meet the growing requirements, especially in the automotive industry.

1. cold-rolled dual-phase steels
Dual-phase steels (DP) combine a soft ferrite matrix with a hard martensite structure. They offer an excellent combination of high strength and good formability. These steels are particularly suitable for applications such as car body structures where weight savings and energy absorption in the event of a crash are crucial.

2. hot-rolled dual-phase steels
In the hot-rolled condition, dual-phase steels offer similar strength to their cold-rolled variants, but with improved cost-effectiveness for large-area applications. They are often used in chassis components, axles or structural parts of vehicles.

3. cold-rolled dual-phase steels with improved formability
This further development offers increased local formability, making it ideal for components with complex geometries. The property is achieved through targeted control of the microstructure and particle distribution in the steel.

4. cold-rolled multiphase steels with high global formability
Multiphase steels (MP) are characterized by a complex microstructure that can contain bainite and austenite in addition to ferrite and martensite. Their global formability allows the production of large-surface car body components without cracks or fractures.

5. cold-rolled complex-phase steels
Complex-phase steels (CP) are characterized by a higher tensile strength compared to dual-phase steels, but offer slightly reduced formability. This makes them ideal for reinforcing components that require high strength with medium formability, such as sills or bumper beams.

6. hot-rolled complex-phase steels
The hot-rolled variants of complex-phase steels offer similar mechanical properties to their cold-rolled counterparts, but with the option of producing thicker cross-sections more economically. They are often used for thick-walled structural parts in chassis and machinery.

7. cold-rolled complex-phase steels with improved formability
This further development increases local formability, making it easier to process complex geometries. These steels are primarily used in safety components such as door reinforcements and impact protection.

8. cold-rolled martensitic phase steels
Martensitic phase steels (MS) offer the highest strength class. These steels are characterized by an almost completely martensitic microstructure that achieves exceptional strengths of up to 1700 MPa. At the same time, its formability is limited, meaning that its use is mainly restricted to highly stressed areas such as side impact protection, seat reinforcements and roof beams.

Summary
The steel grades in the VDA 239-100 standard offer a specialized solution for every application. Whether the aim is to increase strength, reduce vehicle weight or implement highly complex geometries – the dual-phase, multiphase, complex-phase and martensitic-phase steels meet the most demanding requirements of modern production technology. They make a significant contribution to optimizing safety standards and increasing efficiency in production.