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Stainless Steel Rod Catalog | 201 to 440C Grades
Stainless Steel Rod Catalog | 201 to 440C Grades
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Stainless Steel Rod Catalog | 201 to 440C Grades
Product Specifications
| Parameter | Details |
|---|---|
| Material Grades | 201, 304, 316L, 430, 440C (Customizable for clamp on stainless steel rod holders or shower rod curved stainless steel) |
| Diameter Range | Round Rods: 3–500mm; Threaded Rods: M6–M30; Specialized Components: stainless steel heim joint rod ends (6–50mm) |
| Length | 0.1–12m (Standard), Custom Lengths Available (±0.1mm Tolerance) |
| Hardness (HV) | 150–250 HV (304/316L); 250–400 HV (Martensitic 440C); 180–220 HV (Ferritic 430) |
| Tensile Strength | 520–860 MPa (304); 800–1,200 MPa (Duplex 2205); 760–1,970 MPa (440C) |
| Surface Finish | Polished (#4–#8 Mirror), Passivated, Cold Drawn, Electroplated (Optional) |
| Certifications | ISO 9001, ASTM A276, EN 10088, NACE MR0175 (H₂S Resistance) |
Mechanical & Chemical Properties
Tensile Strength
Our clamp on stainless steel rod holders (316L grade) achieve tensile strengths of 520–860 MPa, ideal for marine environments due to 2–3% molybdenum content. The 440C grade (martensitic) stands out with 760–1,970 MPa tensile strength after heat treatment, making it perfect for high-stress applications like aerospace bearings or surgical tools. For architectural elegance, shower rod curved stainless steel (304 grade) balances strength (515 MPa) with corrosion resistance for humid bathrooms.
Bend Strength
Bend strength ranges from 60–75% of tensile strength, optimized for dynamic loads. Stainless steel heim joint rod ends (440C) retain 30% higher bend resistance than standard grades, critical for automotive suspensions. The 430 grade (ferritic) offers bend resistance of 310–430 MPa, suitable for decorative profiles exposed to mild stress.
Identification & Marking
Stainless steel rods are labeled per global standards:
- ASTM A276: Specifies chemical compositions (e.g., 440C: 16–18% Cr, 0.95–1.20% C).
- ISO 15510: Ensures traceability for marine and medical applications.
- Laser Etching: Permanent markings include grade (e.g., "440C-1970MPa"), batch number, and tensile class.
Weight Calculation
Weight (kg) = Volume (m³) × Density (7,930 kg/m³ for austenitic steel; 7.65–7.80 g/cm³ for martensitic grades).
Example for a 12mm diameter, 1m rod (440C):π × (0.006m)² × 1m × 7,800 kg/m³ ≈ 0.88 kg.
For shower rod curved stainless steel (16mm diameter, 304 grade):Weight ≈ 1.58 kg/m.
Why Stainless Steel Rusts: Causes & Solutions
While stainless steel resists corrosion via chromium oxide layers (≥10.5% Cr), specific conditions trigger rust:
- Chloride Exposure: Coastal saltwater or de-icing salts degrade passive layers. Use 316L rods for clamp on stainless steel rod holders in marine settings.
- Galvanic Corrosion: Contact with carbon steel accelerates oxidation. Insulate joints using dielectric coatings or ER309L stainless steel welding rod chart-recommended fillers.
- Mechanical Damage: Scratches expose iron. Passivate surfaces with nitric acid post-machining to restore chromium oxide layers.
- Low Oxygen Environments: Stagnant water in crevices (e.g., threaded joints) breeds crevice corrosion. Design gaps >0.5mm for oxygen flow.
Why Choose Our Stainless Steel Rods
- Certified Quality: ISO 9001 and ASTM-compliant production with SGS/BV third-party inspections.
- Precision Customization: Tailor shower rod curved stainless steel, heim joint rod ends, or threaded rods to ±0.1mm tolerance.
- Fast Delivery: 15–30-day lead time via DHL/FedEx, with bulk discounts for orders over 5 tons.
- Sustainability: 100% recyclable alloys; lean duplex grades reduce nickel consumption by 50%.
- Technical Support: Expert guidance on heat treatment (e.g., 440C tempering at 204–371°C).
