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Technical Specifications
Product Overview
316 Stainless Steel Round Bar is manufactured from premium grade 316 stainless steel, featuring superior corrosion resistance due to molybdenum addition. This austenitic stainless steel bar offers excellent performance in harsh environments and is ideal for marine, chemical, and pharmaceutical applications.
Key Features:
- Superior corrosion resistance, especially against chlorides and acids
- Enhanced strength and durability compared to 304 grade
- Excellent formability and machinability
- Non-magnetic in annealed condition
- FDA approved for food and pharmaceutical applications
- High temperature resistance up to 870°C
Manufacturing Process: Produced through hot rolling followed by cold drawing or bright annealing processes, ensuring excellent surface finish and dimensional accuracy. Heat treatment provides optimal mechanical properties and corrosion resistance.
Applications: Marine hardware, chemical processing equipment, pharmaceutical machinery, medical implants, food processing equipment, pulp and paper industry, textile machinery, and high-end architectural applications requiring superior corrosion resistance.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM A276 Requirement |
|---|---|---|---|---|
| Carbon (C) | - | 0.080 | 0.035 | ≤ 0.08 |
| Chromium (Cr) | 16.0 | 18.0 | 17.2 | 16.0-18.0 |
| Nickel (Ni) | 10.0 | 14.0 | 12.0 | 10.0-14.0 |
| Molybdenum (Mo) | 2.0 | 3.0 | 2.3 | 2.0-3.0 |
| Manganese (Mn) | - | 2.00 | 1.35 | ≤ 2.00 |
| Silicon (Si) | - | 0.75 | 0.38 | ≤ 0.75 |
| Phosphorus (P) | - | 0.045 | 0.025 | ≤ 0.045 |
| Sulfur (S) | - | 0.030 | 0.012 | ≤ 0.030 |
| Nitrogen (N) | - | 0.10 | 0.05 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance | 66.1 | Balance |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 515 MPa min | 620 MPa | ASTM A370 | Room Temp |
| Yield Strength (0.2%) | 205 MPa min | 310 MPa | ASTM A370 | Room Temp |
| Elongation | 30% min | 40% | ASTM A370 | Room Temp |
| Hardness (Brinell) | 217 HB max | 185 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | 95 HRB max | 88 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 200 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | - | 325+ J | ASTM E23 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 8.03 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1375-1400 | °C | - | DSC Analysis |
| Thermal Conductivity | 16.3 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 500 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 16.0 | μm/m·K | 0-100°C | ASTM E228 |
| Electrical Resistivity | 740 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | 1.02 | μ/μ₀ | Room Temp | ASTM A342 |
| Curie Temperature | None | - | - | Non-magnetic |
📏 Product Specifications
| Specification | Available Range | Standard Length | Custom Available | Tolerance |
|---|---|---|---|---|
| Diameter | 3mm - 300mm | Various | Yes | h9 (±0.1-0.5mm) |
| Length | 1m - 12m | 6m | Yes | +50mm/-0mm |
| Surface Finish | Hot Rolled, Cold Drawn, Bright | Cold Drawn | Yes | Ra ≤ 1.6μm |
| Straightness | ≤ 1mm/m | Standard | Precision | ASTM A276 |
| End Condition | Sawn, Machined, Chamfered | Sawn | Yes | Square ±1° |
| Heat Treatment | Annealed, Solution Treated | Annealed | Both | ASTM A276 |
| Standards Compliance | ASTM A276, A479, A564 | A276 | Multiple | Full compliance |
| Grade Verification | PMI Test, Chemical Analysis | PMI | Yes | Standard |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Bundles, Wooden Cases, Containers | Bundles | Custom | Export standard |
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Our Advantages in Processing Круглая стальная пруток 316 из нержавеющей стали
Superior Corrosion Resistance
Manufactured through precise alloying process that incorporates molybdenum into the steel matrix, creating an enhanced passive layer that provides exceptional protection against chlorides and acidic environments, particularly crucial for marine applications.
Precision Round Formation
Engineered through advanced hot rolling and cold finishing processes to achieve precise roundness and dimensional accuracy, ensuring consistent diameter throughout the entire length of the bar for optimal machining performance.
Controlled Heat Treatment
Subjected to carefully monitored solution annealing process at specific temperatures to optimize microstructure, resulting in improved mechanical properties and enhanced resistance to intergranular corrosion.
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