Maximize your choice of AHSS/UHSS automotive solutions: Docol® steel grades include martensitic • press hardening steel • complex phase • high edge ductility • 3rd gen dual phase with high formability • and more. SSAB uses pure Swedish iron ore and advanced milling processes to make steels with extremely clean properties and highly consistent formability.
OEM-specific automotive steels
In addition to the steel grades listed below, SSAB offers hundreds of Docol® variations to meet specific VDA, SAE, EN, JIS, and OEM standards. We work in close cooperation with automotive OEMs and Tier 1 suppliers to develop custom AHSS grades that give your designs a competitive edge.
We can help at each step: material selection, crash simulations, design optimization, production modeling, effective workflow planning, and tooling recommendations. Plus, you have immediate access to on-demand webinars and articles on key issues such as AHSS simulations, managing springback, and fossil-free steel.
Docol® Product program for the automotive industry
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The newest AHSS grades
In addition to the open for sales steels listed in the “Available steel grades” tables below, SSAB is constantly developing new Docol® grades based on future needs of leading car OEMs and Tier 1 suppliers.
Here’s a list of exciting new AHSS developments. Some are “steel family extensions” — that is, grades now available in new hot-rolled or metal-coated versions. Others are all-new steels, like our guaranteed hole-expansion ratio (HER) grades.
Martensitic (M) steels have very high yield strength (Re) and an extremely high tensile strength (Rm). Docol® martensitic steel has good draw ability and good edge stretching properties. It is also good in welding.
Metal coated Docol® 600DH-GI and 800DH-GI are two of the steel grades now avaliable and more are on the way.
DA special heat treatment producing mainly two-phase structure makes Docol® 600DH-GI and 800DH-GI suitable where an improved formability is requested compared to conventional dual-phase steel grades with the same tensile strength level.
For Press Hardening (PHS) Steel it is the forming process which sets the final characteristics on the material. Forming at high temperatures facilitates complex structures as the martensitic microstructure is developed after press hardening. This material has a limitation in welding properties.
Complex Phase (CP) steels have higher yield strength and lower work hardening effect, compared to DP steels for same strength level. The CP steels have good fatigue properties when it comes to low cycle fatigue. Compared to DP, the CP steels offer better flanging and ISO hole expansion performance and these steels are suitable for applications where high strength, good bendability and stretch-flange ability is required.
For Dual Phase (DP) steels there is a big difference in yield and tensile strength in un-deformed areas. The work hardening in forming is very strong. DP steels have good formability compared to its strength but are limited in hole expansion. With its lean composition these steels are easy to weld but sensitive to heat treatment (> 200 °C).
Docol® HE is a new range of hot rolled advanced high strength steel (AHSS) with improved edge ductility for automotive manufacturers facing technical challenges in production.
High Strength Low Alloy (HSLA) steels have a typically small difference between yield strength and tensile strength (<100 MPa). They, therefore, offer excellent bendability. With little pearlite and no other hard phases they also have better fine blanking properties compared to DP steels and due to lean composition they are very easy to weld.
Docol® High Strength Low Alloy steel product offer:
Ferrite-Bainite (FB) steels have mechanical properties that are similar to Complex Phase (CP) steels but with a higher gap between yield and tensile strength. FB steels are characterized by good bendability and excellent stretch-flange ability. They are best suited for parts with stretched flanges such as chassis components in cars.
Docol Tubes offer the market´s greatest strength range. The tensile strength range starts from 600 MPa and goes up to an extraordinary 1000 MPa without any post-heat treatments. With coating options including zinc, galfan and galvannealed, corrosion resistance and superior paint adhesion can be combined for the first time in high-strength precision tubing. Docol Tubes are made in compliance with standard EN 10305 (parts 3 and 5) with the more demanding elongation values and chemical analyses. To meet the highest customer expectations, we manufacture the tubes with narrow tolerances.
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Product Family
Product Name
Dimensions
Standards
Datasheet
Docol Tube 590DP
CR500Y590TDP
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 100x40 mm Wall Thickness: 1.0 - 2.0 mm
EN 10305-3, EN 10305-5, VDA 239-100
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CR500Y590TDH
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 100x40 mm Wall Thickness: 1.0 - 2.0 mm
EN 10305-3, EN 10305-5, VDA 239-100
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Docol Tube 780DP
CR600Y780TDP
Circular: 16 - 76 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 80x40 mm Wall Thickness: 1.0 - 2.0 mm
EN 10305-3, EN 10305-5, VDA 239-100
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CR600Y780TDH
Circular: 16 - 76 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 80x40 mm Wall Thickness: 1.0 - 2.0 mm
EN 10305-3, EN 10305-5, VDA 239-100
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CR700Y800TDP
Circular: 16 - 76 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 80x40 mm Wall Thickness: 1.0 - 2.0 mm
EN 10305-3, EN 10305-5, VDA 239-100
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Docol Tube 980DP
CR750Y980TDP
Circular: 28 - 60 mm Square: 25x25 - 50x50 mm Rectangular: 40x20 - 60x40 mm Wall Thickness: 1.0 - 2.0 mm
EN 10305-3, EN 10305-5, VDA 239-100
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Docol Tube 420LA
CR420LA
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
EN 10305-3, EN 10305-5
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HR420LA
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
EN 10305-3, EN 10305-5
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Docol Tube 500LA
CR500LA
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
EN 10305-3, EN 10305-5
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HR500LA
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
EN 10305-3, EN 10305-5
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Docol Tube 600LA
HR600LA
Circular: 22 - 88.9 mm Square: 30x30 - 60x60 mm Rectangular: 30x20 - 100x40 mm Wall Thickness: 2.0 - 3.0 mm
EN 10305-3, EN 10305-5
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Docol Tube 700LA
HR700LA
Circular: 32 - 88.9 mm Wall Thickness: 2.0 - 3.0 mm
EN 10305-3
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Docol Tube R8
R8
Circular: 30 - 50 mm Wall Thickness: 1.2 - 2.4 mm
EN 10305-3
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Comparison
Product Family
Docol Tube 590DP
Product Name
CR500Y590TDP
Dimensions
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 100x40 mm Wall Thickness: 1.0 - 2.0 mm
Standards
EN 10305-3, EN 10305-5, VDA 239-100
Datasheet
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Expand Collapse
Product Family
Docol Tube 590DP
Product Name
CR500Y590TDH
Dimensions
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 100x40 mm Wall Thickness: 1.0 - 2.0 mm
Standards
EN 10305-3, EN 10305-5, VDA 239-100
Datasheet
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Expand Collapse
Product Family
Docol Tube 780DP
Product Name
CR600Y780TDP
Dimensions
Circular: 16 - 76 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 80x40 mm Wall Thickness: 1.0 - 2.0 mm
Standards
EN 10305-3, EN 10305-5, VDA 239-100
Datasheet
-
Expand Collapse
Product Family
Docol Tube 780DP
Product Name
CR600Y780TDH
Dimensions
Circular: 16 - 76 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 80x40 mm Wall Thickness: 1.0 - 2.0 mm
Standards
EN 10305-3, EN 10305-5, VDA 239-100
Datasheet
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Expand Collapse
Product Family
Docol Tube 780DP
Product Name
CR700Y800TDP
Dimensions
Circular: 16 - 76 mm Square: 19x19 - 60x60 mm Rectangular: 25x15 - 80x40 mm Wall Thickness: 1.0 - 2.0 mm
Standards
EN 10305-3, EN 10305-5, VDA 239-100
Datasheet
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Expand Collapse
Product Family
Docol Tube 980DP
Product Name
CR750Y980TDP
Dimensions
Circular: 28 - 60 mm Square: 25x25 - 50x50 mm Rectangular: 40x20 - 60x40 mm Wall Thickness: 1.0 - 2.0 mm
Standards
EN 10305-3, EN 10305-5, VDA 239-100
Datasheet
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Expand Collapse
Product Family
Docol Tube 420LA
Product Name
CR420LA
Dimensions
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
Standards
EN 10305-3, EN 10305-5
Datasheet
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Expand Collapse
Product Family
Docol Tube 420LA
Product Name
HR420LA
Dimensions
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
Standards
EN 10305-3, EN 10305-5
Datasheet
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Expand Collapse
Product Family
Docol Tube 500LA
Product Name
CR500LA
Dimensions
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
Standards
EN 10305-3, EN 10305-5
Datasheet
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Expand Collapse
Product Family
Docol Tube 500LA
Product Name
HR500LA
Dimensions
Circular: 16 - 88.9 mm Square: 19x19 - 60x60 mm Rectangular: 20x15 - 100x40 mm Wall Thickness: 1.0 - 3.0 mm
Standards
EN 10305-3, EN 10305-5
Datasheet
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Expand Collapse
Product Family
Docol Tube 600LA
Product Name
HR600LA
Dimensions
Circular: 22 - 88.9 mm Square: 30x30 - 60x60 mm Rectangular: 30x20 - 100x40 mm Wall Thickness: 2.0 - 3.0 mm
Standards
EN 10305-3, EN 10305-5
Datasheet
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Expand Collapse
Product Family
Docol Tube 700LA
Product Name
HR700LA
Dimensions
Circular: 32 - 88.9 mm Wall Thickness: 2.0 - 3.0 mm