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Mild Steel (Low Carbon Steel) Sheet Metal Fabrication Material
Mild Steel, also known as Low Carbon Steel, is the most cost-effective and widely used material in the sheet metal industry. It offers an excellent balance of strength, ductility, and weldability, making it the backbone of structural manufacturing. At JUCHENG, we process high volumes of Mild Steel (including Cold Rolled and Hot Rolled grades) for diverse industries. From rugged agricultural equipment parts to precision electrical racks, our facility provides complete fabrication services—including laser cutting, heavy-gauge bending, and essential post-processing like powder coating and plating to prevent rust and ensure longevity.
Mild Steel Sheet Metal Fabrication 

JUCHENG's Mild Steel Fabrication Capabilities

Because Mild Steel requires surface protection and structural integrity, we offer specialized end-to-end solutions:
  • Structural Welding: Mild steel has superior weldability. Our certified welders utilize MIG and TIG techniques to create high-strength joints for chassis and heavy machinery frames.
  • Surface Coating: Since mild steel rusts easily, we have integrated coating lines. We offer Powder Coating, Zinc Plating, and E-Coating to provide corrosion resistance and a professional aesthetic finish for equipment shells.
  • Heavy Tonnage Forming: We process thick mild steel plates for structural supports (up to 20mm) using high-tonnage press brakes, ensuring accurate angles even on heavy-duty parts.
  • Cost Optimization: We leverage the low raw material cost of mild steel combined with our automated fiber laser cutting to provide the most economical solution for large-scale production.
Mild Steel SPCC equipment enclosure

Advantages of Sheet Metal Mild Steel

 
Advantage Detailed Description Key Benefit
Cost-Effectiveness Mild steel is significantly cheaper than stainless steel and aluminum. The most economical choice for high-volume manufacturing and heavy structural parts.
Excellent Weldability Low carbon content prevents brittleness during welding. Ideal for complex assemblies, frames, and chassis requiring strong welded joints.
High Strength & Durability Provides robust structural support and impact resistance. Suitable for protective shells, machinery guards, and automotive body parts.
Good Formability Can be bent, stamped, and formed without cracking. Allows for the creation of complex shapes for dashboards and enclosures.
Surface Versatility Readily accepts paints, powder coats, and plating. Can be customized to any color or finish specification for branding requirements.

Technical Parameters & Material Properties

We cover the standard Cold Rolled and Hot Rolled grades typically used in fabrication:
 
Grade Category Specific Models Detailed Characteristics Ideal Applications
Cold Rolled Steel (CRS) SPCC / 1018 Processed at room temperature. Has a smooth, scale-free surface and tighter tolerances. Higher strength than hot rolled steel. Excellent for painting. Mechanical Shells: Enclosures for electrical and electronic equipment.Panels: Control panels, dashboards, appliance skins.Refrigeration: Enclosures and cosmetic components.
Hot Rolled Steel (HRS) Q235 / A3 / 1020 Processed at high heat. Has a rougher, scaly blue-grey finish. Cheaper than CRS. Easier to shape and form but looser tolerances. High toughness. Structural Support: Internal mechanical components, heavy equipment frames.Automotive: Chassis structures, body parts, doors.Agriculture: Plowshares, planters, harvester structural parts.
Pickled & Oiled (P&O) HRPO Hot rolled steel that has been acid-cleaned to remove scale and oiled. Offers a cleaner surface than standard HRS for better welding and painting. Racks: Server racks, industrial shelving, heavy-duty brackets that require painting.

Fabrication Guidelines for Mild Steel

  • Rust Prevention: Mild steel oxidizes (rusts) instantly if exposed to moisture. We apply oil during processing and recommend immediate post-processing (Powder Coating/Plating) after fabrication.
  • Welding: We typically use MIG welding for structural steel due to its speed and strength. Pre-heating is generally not required for low carbon grades like 1018.
  • Laser Cutting: We use oxygen-assist laser cutting for thick mild steel plates, which accelerates the burning process for faster cutting speeds.
  • Bending: Mild steel has predictable spring-back. For structural parts (like Q235), we ensure the bend radius is sufficient to prevent stress concentration, though it rarely cracks.

Application Scenarios

Mechanical Equipment: Protective shells for machinery, internal mechanical support brackets, motor mounts.
Electronics & Electrical: Server racks, switchgear cabinets, control panels, instrument dashboards.
Automotive: Body-in-white parts, chassis frames, door structures, reinforcement brackets.
Agriculture: High-strength parts for plowshares, planters, and harvesters that withstand soil impact.
Refrigeration: Compressor housings, external unit enclosures, structural bases.

Physical Properties Table

Property Mild Steel (1018/SPCC) Structural Steel (1020/Q235) Unit
Density 7.87 7.85 g/cm³
Tensile Strength 440 390 - 460 MPa
Yield Strength 370 235 (Min) MPa
Elongation 15 25 %
Hardness (Brinell) 126 110 - 140 HB
Weldability Excellent Excellent -
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Factory Address :
Shenzhen: Fourth Industrial Zone, Xisha Road, Shajing Street, Baoan District, Shenzhen.
Dongguan: 3rd Floor, Building 5, No. 198, Chang'an Section, Guanchang Road, Chang'an Town, Dongguan.
 
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unit 1, Enterprise City,Durham DL16 6JF, united Kindom
 
 
+86 - 186 - 8005 - 3076

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