FAQs & Technical Guides
Explore steel grades and find the information you need on product selection, coatings and technical documents.
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Explore the Properties of Steel
22 technical topics · 16 questions
Hot-rolled steel plate: production, surface and grade selection
Selecting hot-rolled steel by surface condition, delivery condition and intended use.
View Technical PropertiesS235JR: yield strength, tensile strength and impact properties
Understanding the grade designation, thickness effects and mechanical values for S235JR.
View Technical PropertiesS355: thickness-dependent strength and J0/J2/+N designations
Why the S355 family does not have a minimum yield strength of 355 MPa at every thickness.
View Technical PropertiesCold-rolled steel sheet: processing and surface properties
Annealed versus full-hard sheet, DC grades and surface options.
View Technical PropertiesDC01: mechanical properties and chemical composition
A manufacturer example of EN 10130 DC01, with thin-sheet exceptions and composition limits.
View Technical PropertiesDC04: deep-drawing and forming properties
Elongation and r/n values using SSAB Form 04 as an example meeting DC04 requirements.
View Technical PropertiesPickled hot-rolled sheet: pickling, oiling and DD11–DD14
Distinguishing surface treatment from grade: cleaning hot-rolled steel and selecting forming grades.
View Technical PropertiesHardox® 400: hardness and fabrication properties
Hardness ranges for Hardox 400 sheet and plate, and typical versus guaranteed yield strength.
View Technical PropertiesHardox® 450: hardness and fabrication properties
Why the Hardox 450 hardness range changes for thicker plate.
View Technical PropertiesClear Answers. Practical Information.
What is hot-rolled steel sheet?
It is produced by rolling a semi-finished steel slab at high temperature. It may be supplied as coil, sheet cut from coil or plate. The manufacturing process alone does not define the grade; select a steel grade suitable for the application.
Source: Erdemir — Technical reference ↗What distinguishes cold-rolled steel sheet?
It is produced by cold rolling hot-rolled steel. It is used where surface finish and dimensional control are important, including domestic appliances, automotive components and formed products.
Source: Erdemir — Technical reference ↗What is DC01 steel used for?
DC01 is a steel grade for cold forming under EN 10130. It may be used for drawing and stretch-forming applications. Formability, surface and thickness requirements must be assessed alongside the manufacturer data sheet.
Source: SSAB — Technical reference ↗How does galvanised sheet differ?
Galvanised sheet protects the steel surface with a zinc coating. Specify coating type and mass in the order. Select the steel grade, surface condition and corrosion requirements together for the intended environment.
Source: ArcelorMittal — Technical reference ↗Are galvanised and galvannealed steel the same?
No. Galvannealing includes heating after zinc coating to create a zinc–iron alloy layer. Specify the required coating type explicitly rather than ordering simply by the term galvanised.
Source: Erdemir — Technical reference ↗What does Z275 mean?
Z275 is a zinc-coating class under EN 10346. It indicates a coating-mass class of 275 g/m² for both sides combined, not 275 g/m² on each side. Specify the steel grade and coating code together.
Source: ArcelorMittal — Technical reference ↗