07Cr19Ni10 Stainless Steel Plate/Coil
07Cr19Ni10 Stainless Steel Plate/Coil | GB/T 4237 Austenitic Grade 304 Equivalent
07Cr19Ni10 (0Cr19Ni10) is an austenitic stainless steel per GB/T 4237 for hot-rolled plate and coil. Equivalent to 304/1.4301, it offers excellent corrosion resistance, formability, and weldability.
Hot rolling, cold forming, bending, welding, machining
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07Cr19Ni10 Stainless Steel Plate/Coil Introduction
07Cr19Ni10 is a chromium-nickel austenitic stainless steel designated in the Chinese standard GB/T 4237 for hot-rolled plates and coils. As a general-purpose grade, it is widely recognized as the Chinese equivalent to AISI 304 / EN 1.4301. With a maximum carbon content of 0.07%, this alloy provides a good balance of corrosion resistance, formability, and weldability in a wide range of mildly corrosive environments. It is essentially the same as the old grade 0Cr19Ni10. The material is usually supplied in solution-annealed condition, ensuring a fully austenitic microstructure free from chromium carbides. Typical applications include food processing equipment, chemical containers, architectural panels, and household appliances.
07Cr19Ni10 Stainless Steel Plate/Coil Chemical Composition
The chemical composition of 07Cr19Ni10 as specified in GB/T 4237-2015 is tailored to maintain a stable austenitic structure. The chromium and nickel contents provide corrosion resistance and phase stability. The low carbon content (< 0.07%) helps prevent intergranular corrosion after welding or slow cooling. All values are maximum unless a range is indicated.
| Element | Standard Value | Remarks |
|---|---|---|
| Carbon (C) | ≤0.07 | maximum |
| Silicon (Si) | ≤0.75 | maximum |
| Manganese (Mn) | ≤2.00 | maximum |
| Phosphorus (P) | ≤0.045 | maximum |
| Sulfur (S) | ≤0.030 | maximum |
| Chromium (Cr) | 18.00-20.00 | range |
| Nickel (Ni) | 8.00-10.50 | range |
07Cr19Ni10 Stainless Steel Plate/Coil Thermal & Electrical Physical Properties
The following thermal and electrical properties are typical for fully annealed 07Cr19Ni10 (304-type) at room temperature unless a temperature is indicated. These values are not mandatory in the product specification but are essential for engineering design.
| Property | Standard Required Value | Unit | Test Condition |
|---|---|---|---|
| Density (ρ) | 7.93 | g/cm³ | 20°C |
| Modulus of elasticity (E) | 193 | GPa | 20°C |
| Shear modulus (G) | 78 | GPa | 20°C, calculated from E and ν |
| Poisson's ratio (ν) | 0.30 | ‐ | room temperature |
| Thermal expansion coefficient (α) | 16.0 | 10⁻⁶/K | 20–100°C |
| Thermal expansion coefficient (α) | 17.2 | 10⁻⁶/K | 20–300°C |
| Thermal expansion coefficient (α) | 18.3 | 10⁻⁶/K | 20–500°C |
| Thermal conductivity (λ) | 16.3 | W/(m·K) | 100°C |
| Thermal conductivity (λ) | 21.5 | W/(m·K) | 500°C |
| Specific heat capacity | 500 | J/(kg·K) | 20°C |
| Electrical resistivity (ρe) | 720 | nΩ·m | 20°C |
07Cr19Ni10 Stainless Steel Plate/Coil Mechanical Properties
Mechanical properties apply to plates and coils in solution-annealed condition per GB/T 4237-2015. The data are for thickness ≤75 mm unless otherwise noted. Tensile testing is performed at room temperature transverse to the rolling direction. Hardness values are optional but commonly reported.
| Property | Standard Required Value | Unit | Test Condition |
|---|---|---|---|
| Yield strength (Rp0.2) | ≥205 | MPa | room temperature, transverse |
| Tensile strength (Rm) | ≥520 | MPa | room temperature, transverse |
| Elongation (A) | ≥40 | % | gauge length 50 mm (2 in), thickness ≤75 mm |
| Hardness (HBW) | ≤201 | HBW | optional |
| Hardness (HRB) | ≤92 | HRB | optional |
| Bend test | d×2a | bend angle 180° | thickness ≤10 mm, no cracks on outside of bend |
07Cr19Ni10 Stainless Steel Plate/Coil Exactly Equivalent Standards & Replaceable Grades
| Country / Region | Standard | Grade | Remarks |
|---|---|---|---|
| China | GB/T 4237 | 07Cr19Ni10 | original specification, fully equivalent |
| International (ISO) | ISO 15510 | X5CrNi18-10 | chemical and mechanical equivalence |
| Europe (EU) | EN 10088-2 | 1.4301 (X5CrNi18-10) | direct equivalent for plate/coil |
| USA | ASTM A240/A276 | 304 (UNS S30400) | fully interchangeable, slight carbon difference (max 0.08) |
| Japan | JIS G4304/G4305 | SUS304 | identical performance |
07Cr19Ni10 Stainless Steel Plate/Coil Application Introduction
07Cr19Ni10 plate and coil can be formed, welded, and machined using standard techniques for austenitic stainless steel. It is suitable for a wide variety of applications where moderate corrosion resistance and good mechanical properties are required. The following lists typical end-use sectors, specific products, and components that utilize this grade.
Product Applications: Storage tanks and pressure vessels, Kitchen equipment (sinks, countertops, cookware), Architectural cladding and curtain walls, Food processing conveyors and mixers, Heat exchangers and condensers, Brewery and dairy processing equipment
Processed into products: Welded pipe fittings and flanges, Bolts, nuts, and fasteners, Pump shafts and impellers, Structural brackets and frames, Dished ends for tanks, Sheet metal enclosures and cabinets
Application industries: Food and beverage processing, Chemical and petrochemical equipment, Architecture and construction, Household appliances, Automotive (trim, exhaust components), Medical and pharmaceutical equipment
07Cr19Ni10 Stainless Steel Plate/Coil Similar / Alternative Material Recommendations
| Country / Region | Standard | Grade | Remarks |
|---|---|---|---|
| China | GB/T 4237 | 06Cr19Ni10 (0Cr19Ni10) | lower carbon ≤0.06%, improved corrosion resistance but similar strength; often considered for welded structures |
| USA | ASTM A240 | 304L (UNS S30403) | extra-low carbon (max 0.03) for welding without sensitization; slight reduction in strength acceptable |
| China | GB/T 4237 | 022Cr19Ni10 (00Cr19Ni10) | equivalent to 304L, ideal for heavy sections or post-weld applications |
| Europe | EN 10088-2 | 1.4307 (X2CrNi18-9) | low-carbon variant, directly substitutes 07Cr19Ni10 in corrosion-critical welded fabrications |
| International | ISO 15510 | X2CrNi19-11 | low carbon and slightly higher nickel, equivalent to 304L |
Notes:
Welding: 07Cr19Ni10 can be welded by all common processes (SMAW, TIG, MIG, SAW). No preheating is required. To avoid sensitivity to intergranular corrosion, low heat input and post-weld solution annealing are recommended for heavy sections. Machining: Work hardening requires sharp tools and adequate cooling; machinability is moderate. Corrosion: Resists a wide range of atmospheric, chemical, and food environments; not suitable for chloride-rich saltwater immersion unless crevices are avoided. All information is based on GB/T 4237-2015 and industry references.
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