Carbon steel is the “workhorse” of the sheet metal industry. While stainless steel offers shine and aluminum offers lightness, carbon steel is chosen for its raw structural integrity and unmatched cost-effectiveness. In stamping and bending, it is the go-to material for parts that must endure heavy mechanical loads without breaking the bank.
Depending on your precision needs, we typically work with two primary types of carbon steel sheets:
| Property | Cold Rolled (CRS/SPCC) | Hot Rolled (HRS/A36) |
| Surface Finish | Smooth, uniform, and oily | Rough, with a dark “mill scale” |
| Thickness Tolerance | High precision (±0.05mm) | Standard industrial (±0.15mm) |
| Best Used For | Visible brackets, enclosures | Hidden structural frames |
| Bending Quality | Excellent (sharp, clean bends) | Good (may require larger radii) |
| Standard Hardness | 50 – 70 HRB | 60 – 80 HRB |
Carbon steel is prized for its predictable ductility. When pushed through a stamping die, it flows into complex shapes without the brittleness found in harder alloys. However, it requires a master’s touch to handle springback—the material’s tendency to slightly un-bend after the pressure is released.
Because raw carbon steel is prone to rust, we specialize in high-performance surface defenses:
Powder Coating: For a colorful, scratch-resistant armor.
Zinc Plating: For affordable, high-utility corrosion protection.
E-Coating: Ideal for complex stamped parts requiring 100% coverage.
At Dewintech, we optimize every step of the carbon steel lifecycle. Our engineers don’t just follow blueprints; we analyze the grain direction of the steel to ensure your bends never crack and your stamped edges stay burr-free. By combining high-tonnage hydraulic presses with automated CNC bending centers, Dewintech delivers the structural reliability of steel with the precision of a high-tech lab.
Not sure if Cold Rolled or Hot Rolled is right for your project? Tell me your part’s application, and I’ll recommend the most cost-effective grade for your production run.
Contact us to evaluate manufacturability, tolerances, and cost for your specific application.
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