Gail Steel & Engineering LLP

SS 316 round bars, or stainless steel 316 round bars, are a type of stainless steel product used in various industrial and commercial applications. Here’s a detailed overview:

1. Material: SS 316 is an austenitic stainless steel alloy with molybdenum, which provides enhanced resistance to corrosion and pitting compared to SS 304. This makes it particularly suitable for harsh environments.

2. Composition:

   • Chromium (Cr): 16-18%
   • Nickel (Ni): 10-14%
   • Molybdenum (Mo): 2-3%
   • Carbon (C): ≤0.08%
   • Manganese (Mn): ≤2%
   • Silicon (Si): ≤1%
   • Phosphorus (P): ≤0.045%
   • Sulfur (S): ≤0.03%

3. Properties:

   • Corrosion Resistance: Excellent resistance to corrosion, particularly in chloride environments.
   • Strength: Good mechanical strength and toughness at both high and low temperatures.
   • Formability: Good formability and weldability.
   • Temperature Resistance: Can withstand temperatures up to approximately 870°C (1600°F) in intermittent service and 925°C (1700°F) in continuous service.

1. Marine and Offshore Applications: Due to its superior resistance to chloride-induced corrosion, SS 316 is widely used in marine environments for components like boat fittings, marine hardware, and piping.

2. Chemical Processing: It is used for tanks, valves, and pipes in chemical processing industries where resistance to corrosive chemicals is essential.

3. Medical Equipment: SS 316 is used in medical devices and surgical instruments due to its biocompatibility and resistance to sterilization processes.

4. Food and Beverage Industry: It is used in equipment and components for food and beverage processing, including mixers, pumps, and storage tanks.

5. Architectural Applications: SS 316 round bars are used in architectural components and decorative features due to their corrosion resistance and aesthetic appeal.

6. Oil and Gas Industry: Utilized in components exposed to harsh environments, such as wellhead equipment and processing machinery.

7. Automotive and Aerospace: SS 316 round bars are used in various components that require high strength and resistance to extreme conditions.

• Durability: High resistance to corrosion, particularly in marine and chloride-rich environments.
• Strength: Maintains good mechanical strength at both high and low temperatures.
• Ease of Fabrication: Good weldability and machinability, making it suitable for a wide range of applications.
• Aesthetic Appeal: Provides a smooth, shiny finish that is often desirable in visible applications.

SS 316 round bars are available in a range of diameters and lengths to suit different applications. They can be supplied in various forms, including:

• Hot Rolled: Generally used for structural applications.
• Cold Drawn: Provides a smoother surface finish and tighter tolerances.

In summary, SS 316 round bars are highly valued for their superior corrosion resistance, strength, and versatility, making them suitable for demanding applications across a variety of industries.

Additional Information:

• Item Code: 7222
• Production Capacity: 10000 KGS
• Delivery Time: READY STOCK

The S2205 Duplex Flat Bar refers to a flat-shaped product made from Duplex Stainless Steel 2205, a popular grade known for its excellent combination of strength, corrosion resistance, and cost-efficiency. It is widely used in industries requiring durable and reliable materials.

1. Material Composition:

   • Duplex Structure: Contains approximately equal amounts of austenite and ferrite.
   • Composition:
     • Chromium (Cr): 21–23%
     • Nickel (Ni): 4.5–6.5%
     • Molybdenum (Mo): 2.5–3.5%
     • Nitrogen (N): 0.08–0.2%
     • Low carbon content (<0.03%) for reduced carbide precipitation.

2. Strength:

   • High Yield Strength: About twice as strong as austenitic stainless steel grades like 304 and 316.
   • Improved mechanical properties reduce the required thickness in structural applications.

3. Corrosion Resistance:

   • Excellent resistance to pitting and crevice corrosion in chloride environments.
   • Good performance against stress corrosion cracking (SCC).

4. Thermal Properties:

   • High resistance to thermal fatigue and oxidation.
   • Suitable for temperatures up to ~300°C.

1. Standard Sizes:

   • Thickness: Typically ranges from 3mm to 100mm.
   • Width: Varies depending on the application, usually 10mm to 200mm or more.
   • Length: Supplied in custom lengths or standard sizes (e.g., 3m, 6m).

2. Standards:

   • ASTM A240, A276, A479.
   • EN 10088-2.
   • UNS S32205/S31803 (common designations for 2205 duplex).

1. Marine and Offshore:
   • Shipbuilding components, oil rigs, and platforms.
2. Chemical Processing:
   • Heat exchangers, storage tanks, and process piping.
3. Pulp and Paper Industry:
   • Equipment for handling caustic substances.
4. Water Treatment:
   • Desalination plants, brackish water systems, and wastewater management.
5. Structural Uses:
   • Bridges, construction components, and reinforcement.

1. High Strength: Reduces material usage and weight.
2. Corrosion Resistance: Excellent in harsh environments with chlorides.
3. Cost-Effective: Lower alloying costs compared to super austenitic grades.
4. Good Weldability: Compatible with modern welding techniques.

1. Lower Toughness at Low Temperatures: Can become brittle at temperatures below -50°C.
2. Fabrication Challenges:
   • Requires skilled handling due to its duplex structure.
   • Precise control needed during welding to maintain phase balance.

1. Cutting: Use appropriate tools (e.g., plasma or waterjet cutting) to prevent edge hardening.
2. Welding:
   • Use low heat input to maintain phase balance.
   • Suitable filler metals include ER2209 or matching duplex grades.