Stainless steel coils are continuous austenitic alloy strips with high chromium and nickel content, providing corrosion resistance, strength, and formability suited to demanding construction and fabrication environments. Available in thicknesses from 0.3 to 3.0 mm and widths up to 1500 mm, they maintain surface integrity in the humid and coastal conditions common across the Philippines without the maintenance overhead that uncoated alternatives require.
These coils are the material of choice for builds where longevity, hygiene, and finish quality are part of the specification. With partnerships across Japan, Korea, and Taiwan, Metal Exponents has been supplying stainless steel coils to the Philippine construction and fabrication industries for over 40 years, serving architects, contractors, and fabricators who require corrosion-resistant material that performs across the country’s humid and coastal conditions.
The most widely specified austenitic stainless steel grade, SUS 304 carries 18% chromium and 8% nickel in a composition engineered for long-term performance in urban and mild marine atmospheres. In its annealed condition it is non-magnetic, and its capacity for work hardening makes it suitable for formed components that need to retain their mechanical properties after bending or deep drawing.
| Category | Property | Value/Description |
|---|---|---|
| Chemical | Carbon | ≤0.08% |
| Chromium | 18.0-20.0% | |
| Nickel | 8.0-10.5% | |
| Manganese | ≤2.0% | |
| Phosphorus | ≤0.045% | |
| Mechanical | Yield Strength | ≥205 MPa |
| Tensile Strength | ≥520 MPa | |
| Elongation | ≥40% | |
| Physical | Density | 7.90 g/cm³ |
| Modulus of Elasticity | 193 GPa |
SUS 304 is the standard specification for construction applications where corrosion resistance and finish quality are both requirements, including:
SUS 315 is an austenitic stainless steel grade with added molybdenum at 1.25 to 1.75%, giving it stronger resistance to pitting and crevice corrosion where chloride exposure from industrial pollutants and salt air is a persistent factor. Its higher manganese content supports hot workability while maintaining the weldability and formability required for complex architectural and industrial fabrications.
| Category | Property | Value/Description |
|---|---|---|
| Chemical | Carbon | ≤0.15% |
| Chromium | 17.0-18.0% | |
| Nickel | 9.0-11.0% | |
| Molybdenum | 1.25-1.75% | |
| Manganese | 1.20-2.00% | |
| Mechanical | Yield Strength | ≥205 MPa |
| Tensile Strength | ≥520 MPa | |
| Elongation | ≥40% | |
| Physical | Density | 7.90 g/cm³ |
| Modulus of Elasticity | 16.0 W/m·K |
SUS 315 is well suited for cost-sensitive projects in moderately aggressive environments, including: