DD11 hot rolled steel coil is a low-carbon, mild steel (EN 10111 standard), because of its excellent formability, ductility, and good weldability, it is ideal for cold forming applications like car parts, appliances, and general fabrication where complex shapes are needed, delivered as a large rolled coil
DD11 Hot Rolled Steel coil after pickled is a type of steel specifically manufactured for use in the production of automotive components.
The main chemical elements in EN10111 DD11 hot rolled steel coil are carbon, manganese, phosphorus and sulfur, with low levels of other elements such as silicon and aluminum.
We can provide coiled materials in various specifications, ranging from 1.5mm to 12mm in thickness and 680mm to 1500mm in width, and also support custom-sized processing.
Here is the chemical composition of EN10111 DD11 steel:
| Element | Composition (%) |
| Carbon (C) | 0.12 max |
| Manganese (Mn) | 0.60 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.045 max |
| Silicon (Si) | 0.035 max |
| Aluminum (Al) | 0.010 max |
A hot rolled steel coil, also known as HRC steel, is a tightly rolled form of steel produced by heating steel slabs above its recrystallization temperature and then passing through rollers. It is then recoiled after processing for ease of transportation and storage.
Hot rolled steel often has a rough, uneven surface. This scaly finish can be removed by pickling, grinding or sand-blasting.
Hot rolled steel coil grades range widely, from general-purpose commercial steels (like A36, 1010, 1018) for construction and forming, to High Strength Low Alloy (HSLA) steels (like A572, A1011 Grade 50) offering enhanced strength (345 MPa+), up to Ultra-High Strength Steels (UHSS) like A1011 Grade 100 (690 MPa+) for demanding applications, covering various ASTM and structural standards (SS 30-45) for diverse industrial needs.
Baosteel offers a wide range of hot-rolled pickled coil products, primarily covering various series such as automotive structural steel, high-strength structural steel, and general industrial steel, to meet the processing needs of different industries.
Main product series include:
Automotive structural steel series: This is Baosteel’s core product line for hot-rolled pickled coils, with grades including QSTE340TM, QSTE380TM, QSTE420TM, QSTE500TM, QSTE550TM, QSTE600TM, QSTE650TM, and QSTE700TM.
In addition, there are grades specifically for automotive parts, such as HR550LA, S650MC, S700MC, and S750L. These materials possess high strength, good cold formability, and weldability, and are widely used in automotive body structures, chassis components, etc.
High-strength structural steel series: Including grades such as QSTE460TM and QSTE500TM, suitable for engineering machinery, rail transit, bridges, and other structures requiring high strength.
General Industrial Steel Series: Including low-carbon steel grades such as SPHC, SPHD, and SPHE, as well as B510L and HR1, suitable for manufacturing general industrial products such as electrical cabinets, shelves, guardrails, and mechanical parts.
Other Special Steel Grades: Also includes grades such as SS400, E295, and SM490YA, which can be applied in various fields such as shipbuilding, building structures, and pressure vessels.