High Precision Hot Rolled & Cold Drawn Flat Bars for German Market - S235JR/S355JR/1045/C45
Product Introduction
Premium quality hot rolled and cold drawn flat bars, professionally manufactured to meet the strict quality and compliance standards of the German market. Our product range covers grades including S235JR, S355JR, 1018, 1045, C45 and 4140, fully compliant with EN 10058, DIN EN 754 and ASTM standards. Ideal for automotive components, structural engineering, machinery manufacturing and construction projects, we offer customized sizes, precise tolerances and flexible delivery options to support your business in Europe’s high-end manufacturing and infrastructure sectors.
product details
|
Parameter Category |
Hot Rolled Flat Bar |
Cold Drawn Flat Bar |
Germany Market Requirement & Insight |
|
Type & Series |
Hot Rolled Flat Bar |
Cold Drawn |
Hot Rolled: Core for general construction, structural frames & heavy machinery. Cold Drawn: Dominant in German automotive & precision engineering |
|
Steel Grade |
Q235, A36, S235JR, Q345, A572 Gr.50, S355JR |
Q235, 1018, S235JR, 45#, 1045, C45, S45C, 40Cr, 4140 |
S235JR/S355JR: EU standard equivalents of A36/A572, mandatory for EU CE-marked projects 1018/4140: High-demand grades for German auto parts & precision components 45#/C45: Preferred for heat-treated mechanical parts in German machinery |
|
Compliance Standard |
GB/T 702, ASTM A36, EN 10058 |
GB/T 905, ASTM A108, EN 10058 |
Aligns with EN 10025/EN 10058 Meets DIN EN 754 tolerances for cold-drawn products Supports EU CBAM compliance |
|
Theoretical Weight |
Weight (kg/m) = Width (mm) × Thickness (mm) × 0.00785 |
- |
Standard calculation for German procurement & logistics planning Custom dimensions available to match German project specifications |
|
Mechanical Properties |
As Rolled: Balanced strength & weldability |
Higher strength; medium-carbon steel |
Cold Drawn: 15-20% higher tensile strength than hot rolled, ideal for German auto & tooling Heat-treatment options for 40Cr/4140 grades to meet German high-load part requirements |
|
Surface Condition |
Black (Black oxide/ mill scale) |
Bright/Smooth |
Hot Rolled Black: Cost-effective for general construction, shot blasting/pickling optional Cold Drawn Bright: Meets German aesthetic & precision surface standards |
|
Delivery Condition |
As Rolled, Shot Blasted, Pickled |
Cold Drawn Bright, Precision Ground |
Shot Blasted/Pickled: Corrosion-resistant for outdoor German construction Precision Ground: Meets German tolerance standards for high-precision machinery |
|
Core Applications |
Construction, structural frames, welding/cold bending, machinery bases |
Precision components, auto parts, tooling, cold heading/extrusion |
Hot Rolled: Core for German infrastructure, shipbuilding, and general metal fabrication Cold Drawn: Critical for German automotive & industrial machinery |
Core Demand Drivers
Key Market Standards & Preferences
Application Scenarios in Germany
|
Application |
Recommended Product |
Key Grade |
|
Automotive Chassis/Components |
Cold Drawn Bright |
1018, 4140 |
|
Building Structural Frames |
Hot Rolled (Shot Blasted) |
S355JR, A572 Gr.50 |
|
Precision Machinery Parts |
Cold Drawn (Precision Ground) |
45#, C45 |
|
Shipbuilding/Marine Structures |
Hot Rolled (Pickled) |
S235JR, Q345 |
|
General Metal Fabrication |
Hot Rolled (Black) |
Q235, A36 |
Contact & Order
Surface Treatment, Packaging and Transportation
Surface treatment: including bare material (Bare), galvanized (Galvanized), painted (Painted), etc. Galvanizing can significantly improve corrosion resistance.
Packing method: usually bundled into rolls or loaded into containers (20/40 feet), suitable for sea or land transportation needs.
