SS Rectangle Flat
What is Stainless Steel Rectangle Flat?
SS Rectangle Flat bars are long, flat, rectangular stainless steel sections widely used in structural, fabrication, and engineering applications. Known for their excellent corrosion resistance, strength, and durability, these bars are available in SS 304 and SS 316 grades, ensuring performance in both general and demanding environments.
Asiad Steel Industries is a trusted manufacturer and supplier of premium-grade Stainless Steel Rectangle Flat bars, designed for use in construction, marine, chemical, oil & gas, and safety-critical applications.
Key Features
High
Strength
Durable
Construction
Precision
Finish
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Thickness × Width | 3 mm × 20 mm up to 50 mm × 300 mm (custom sizes available) |
| Grades Available | Stainless Steel | SS 304, SS 316 |
| Surface Finish | Options | Hot Rolled, Cold Drawn, Bright Annealed, Polished |
| Standards & Certifications | ASTM | ASTM A276 / A484 |
| EN | EN 10088-3 | |
| Certifications | ISO 9001:2015, PED 2014/68/EU | |
| Design Features | Edges | Sharp Edges / Rounded Edges |
| Length | Up to 6 Meters (custom cut lengths available) | |
| Applications / Usage | Structural | Frames, Supports, Base Plates |
| Industrial | Marine, Chemical, Oil & Gas, Machinery |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 515 – 620 | MPa (SS 304 / SS 316) |
| Yield Strength | 205 – 310 | MPa |
| Hardness | 150 – 217 | HB (Brinell) |
| Elongation | ≥ 40 | % |
| Density | 7.9 – 8.0 | g/cm³ |
| Impact Toughness | ≥ 100 – 150 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~193 – 200 | GPa |
| Fatigue Strength | 240 – 310 | MPa |
| Corrosion Resistance | Excellent in Marine & Industrial Environments | ASTM A240 (SS 304/316) |
| Thermal Conductivity | 14 – 16 | W/m·K |
| Coefficient of Thermal Expansion | 16 – 17 ×10⁻⁶ | /°C |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Operating Temperature Range | -196 to 870 | °C (material-dependent, SS 304/316) |
Applications of SS Rectangle Flats
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What makes rectangle flats better for structural use?
Do you provide precision-cut SS rectangle flats?
Are these flats suitable for marine applications?
Can these be welded or machined?
