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Description
Engineered for demanding environments, the Premium Marine-Grade 88.9 mm (3½″) 316L Stainless Steel Round Bar combines exceptional corrosion resistance, high strength, and excellent weldability in one durable solution. Manufactured from low-carbon 316L stainless steel and enriched with molybdenum, this heavy-duty rod offers unmatched protection against pitting, crevice corrosion, and rust, even in harsh saltwater, chemical, and outdoor conditions.
The low-carbon alloy ensures minimal carbide precipitation during welding, maintaining structural integrity and strength in fabricated assemblies. Its precision-ground finish guarantees consistent diameter and a smooth surface, making it ideal for high-accuracy machining, CNC work, and fabrication projects where exact dimensions are critical.
Trusted by professionals across marine, industrial, architectural, and structural sectors, this 316L stainless steel round bar is built to last, ensuring your projects meet the highest standards of performance and durability.
Key Features:
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Size & Grade: 88.9 mm (3½″) 316L Premium Marine-Grade Stainless Steel Round Bar
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Low-Carbon Alloy: Excellent weldability with reduced risk of sensitization
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Molybdenum-Enriched: Superior resistance to chlorides, saltwater, and harsh chemicals
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Heavy-Duty & High-Strength: Perfect for load-bearing and structural applications
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Precision-Ground Finish: Smooth, accurate surface for CNC, turning, and milling
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Long-Lasting Durability: Resistant to corrosion, wear, and environmental damage
Applications:
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Marine Hardware & Components – Boat rails, cleats, and fittings for saltwater exposure
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Structural & Architectural Projects – Handrails, load-bearing supports, and decorative frameworks
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Industrial Fabrication – Shafts, pump parts, heavy machinery components
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Chemical Processing Equipment – Tanks, piping, and valves in corrosive environments
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Machining & CNC Projects – Custom mechanical parts and high-precision assemblies
Specifications:
| Grade | 304L / 1.4307 |
|---|---|
| Size | 47 |
| Weight - Kg/m | 8.95 |
| Metric Size | 38.1 mm |
| Diameter | 1 1/2 in (38.1 mm) |
| Proof Stress | 190 Min MPa |
| Tensile Strength | 500 to 700 MPa |
| Elongation | 45 Min % |
| Density | 8.00 g/cm³ |
| Melting Point | 1450 °C |
| Thermal Expansion | 17.2 x10^-6 /K |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | 16.2 W/m.K |
| Electrical Resistivity | 0.072 x10^-6 Ω .m |
| Machinability | Good |
| Workability - Cold | Good |
| Weldability - Gas | Good |
| Weldability - Arc | Very good |
| Weldability - Resistance | Good |
| Brazeability | Good |
About Us
Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
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