Metal Tubular Products The 304 CR (Cold Rolled) steel sheet belongs to the austenitic stainless steel family and is recognized for its exceptional corrosion resistance and versatile characteristics. Comprised primarily of chromium and nickel, this steel sheet demonstrates remarkable resistance to oxidation and a wide spectrum of corrosive environments, rendering it a favored choice in numerous industrial applications. The chemical composition of 304 CR steel sheet typically includes chromium within the range of 18.0% to 20.0% and nickel within 8.0% to 10.5%. Alongside, the composition incorporates carbon content capped at 0.08%, manganese up to 2.00% maximum, phosphorus at 0.045% maximum, sulfur at 0.030% maximum, and silicon at 0.75% maximum
The steel sheet's cold rolled manufacturing process imparts enhanced surface finish, dimensional accuracy, and mechanical properties. It conforms to ASTM A240 standard and carries the UNS S30400 designation. This particular type of steel sheet exhibits exceptional formability, making it suitable for various fabrication processes, such as bending, cutting, and deep drawing. Its austenitic microstructure contributes to its non-magnetic nature and excellent weldability.
From a mechanical standpoint, the 304 CR steel sheet possesses a tensile strength of 515 MPa (74,700 psi) and a yield strength of 205 MPa (29,800 psi). Its elongation of 40% showcases its ability to deform without fracturing, providing flexibility in design and application. The sheet's hardness is characterized by a maximum Brinell hardness of 201 HB and a maximum Rockwell B hardness of 92 HRB. These hardness values contribute to its resilience and resistance to wear and abrasion. Furthermore, the 304 CR steel sheet displays a modulus of elasticity of 193 GPa (28,000 ksi), reflecting its ability to return to its original shape after deformation. A Poisson's ratio of 0.29 characterizes its elastic behavior, while its density of 8.0 g/cm³ (0.289 lb/in³) implies a relatively moderate weight-to-volume ratio.
| Property | 304 CR Steel Sheet |
| Material | Cold Rolled 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) |
| 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 |
| 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) |
| Pharmaceutical Equipment | Chemical Equipment |
| Sea Water Equipment | Heat Exchangers |
| Heat Exchangers | Gas Processing |
| Condensers | Specialty Chemicals |
| Pulp and Paper Industry | Pharmaceuticals |
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