Colour Coated Sheets and Coils are manufactured by applying organic coatings on galvanized or galvalume steel substrates. This process improves corrosion resistance, enhances surface finish, and provides long-lasting color stability.
These products are widely used in roofing, wall cladding, false ceilings, and pre-engineered buildings due to their excellent weather resistance and durability. Their lightweight nature, combined with strength and flexibility, makes them suitable for both residential and industrial applications.
Sanjay Sales supplies a wide range of Colour Coated Sheets and Coils in different grades and finishes, ensuring compliance with Indian and international standards to meet diverse project requirements.
Material Specifications:
Mechanical Properties & Applications:
| Base Grade | Standard | Equivalent Grades | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Typical Applications |
|---|---|---|---|---|---|---|
| CQ (Commercial Quality) | IS 14246 | ASTM A755 / EN DX51D / JIS CGCC | 140 – 280 | 270 – 410 | ≥ 28 | Roofing sheets, wall cladding, ceiling panels, HVAC ducts |
| DQ (Drawing Quality) | IS 14246 | ASTM A755 DDS / EN DX52D | 140 – 240 | 270 – 370 | ≥ 32 | Appliances, furniture panels, sheet metal forming |
| HD (High Strength) | IS 14246 | EN S320GD / ASTM A653 HSLA | ≥ 320 | 380 – 480 | ≥ 16 | Structural roofing, industrial buildings, purlins |
| Extra High Strength | IS 14246 | EN S350GD / ASTM A653 | ≥ 350 | 420 – 520 | ≥ 14 | Industrial roofing, solar structures, warehouses |
Chemical Composition:
| Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) |
|---|---|---|---|---|---|
| Commercial Quality | ≤ 0.15 | ≤ 0.60 | ≤ 0.050 | ≤ 0.050 | ≤ 0.03 |
| Drawing Quality | ≤ 0.12 | ≤ 0.50 | ≤ 0.045 | ≤ 0.045 | ≤ 0.03 |
| Structural Quality | ≤ 0.20 | ≤ 1.50 | ≤ 0.040 | ≤ 0.040 | ≤ 0.30 |
Key Features:
- Excellent corrosion and weather resistance
- Attractive and uniform color finish
- High durability with long service life
- Lightweight and easy to install
- Low maintenance and high performance
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