Metal Tubular Products Conforming to ASTM A240 standards and identified by the UNS S30400 designation, 304 stainless steel coils are widely used in industries such as construction, food processing, automotive, and household appliances, where corrosion resistance, durability, and mechanical strength are paramount. Always consult manufacturer specifications and data sheets for precise information when considering 304 stainless steel coils for your specific applications.
304 stainless steel coils are part of the austenitic stainless steel family and are known for their exceptional versatility, corrosion resistance, and suitability for various applications. Comprising primarily of chromium and nickel, 304 stainless steel typically contains chromium in the range of 18.0% to 20.0% and nickel in the range of 8.0% to 10.5%. Additionally, it contains low levels of carbon (capped at 0.08% maximum), manganese (up to 2.00% maximum), phosphorus (0.045% maximum), sulfur (0.030% maximum), and silicon (0.75% maximum). This composition provides excellent resistance to oxidation, corrosion, and staining, making it ideal for applications in various industries.
From a mechanical perspective, 304 stainless steel coils exhibit impressive properties. They have a tensile strength of 515 MPa (74,700 psi) and a yield strength of 205 MPa (29,800 psi), which allows them to withstand significant mechanical stresses while maintaining their structural integrity. The elongation of 40% indicates their ability to deform without breaking, making them suitable for forming and shaping applications. With a hardness of 201 HB max on the Brinell scale and 92 HRB max on the Rockwell B scale, they offer a balance between durability and formability. Furthermore, 304 stainless steel coils have a modulus of elasticity measuring 193 GPa (28,000 ksi), signifying their capability to return to their original shape after deformation. A Poisson's ratio of 0.29 characterizes their elastic properties, while their density of 8.0 g/cm³ (0.289 lb/in³) provides a relatively low weight-to-volume ratio.
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Specification:
| Property | 304 Stainless Steel Coil |
| Material | Stainless Steel (SS 304) |
| Type | Austenitic Stainless Steel |
| Composition | Chromium (Cr): 18.0 - 20.0% |
| - | Nickel (Ni): 8.0 - 10.5% |
| - | Carbon (C): 0.08% max |
| - | Manganese (Mn): 2.00% max |
| - | Phosphorus (P): 0.045% max |
| - | Sulfur (S): 0.030% max |
| - | Silicon (Si): 0.75% max |
| Standard | ASTM A240 |
| - | UNS S30400 |
| Mechanical Properties | Tensile Strength: 515 MPa (74,700 psi) |
| - | Yield Strength: 205 MPa (29,800 psi) |
| - | Elongation: 40% |
| Hardness (Brinell) | 201 HB max |
| Hardness (Rockwell B) | 92 HRB max |
| Modulus of Elasticity | 193 GPa (28,000 ksi) |
| Poisson's Ratio | 0.29 |
| Density | 8.0 g/cm³ (0.289 lb/in³) |
Chemical composition of 304 stainless steel Coil
| Element | Composition Range (%) |
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 0.75 max |
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 8.0 - 10.5 |
Mechanical Properties of 304 stainless steel Coil
| Property | Value |
| Tensile Strength | 515 MPa (74,700 psi) |
| Yield Strength | 205 MPa (29,800 psi) |
| Elongation | 40% |
| Hardness (Brinell) | 201 HB max |
| Hardness (Rockwell B) | 92 HRB max |
| Modulus of Elasticity | 193 GPa (28,000 ksi) |
| Poisson's Ratio | 0.29 |
| Density | 8.0 g/cm³ (0.289 lb/in³) |
Advantages of 304 stainless steel Coil
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
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Applications Industry
| Pharmaceutical Equipment | Chemical Equipment |
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| Heat Exchangers | Gas Processing |
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