stainless steel pipes

Approx. Rs 1,200 / KgGet Latest Price

Approx. Rs 555 / KgGet Latest Price

🔹 Material:

• Grade: 316L (Low carbon version of 316, better resistance to sensitization & intergranular corrosion)

• Standard: ASTM A312 / A358 (for stainless steel pipes)

🔹 Size & Dimensions (per ASME B36.19M):

• Nominal Bore (NB): 300 NB (12")

• Outside Diameter (OD): 323.9 mm (12.75")

• Wall Thickness: 33.32 mm (1.312")

• Inside Diameter (ID): ~257.26 mm (10.13")

• Theoretical Weight: ~241.5 kg/m

🔹 Pressure Rating (approx., at 38 °C / 100 °F):

• Design Pressure: ~128 bar (~1850 psi)

• Note: Pressure rating decreases at higher temperatures.

🔹 Properties of 316L Stainless Steel:

• Tensile Strength (min): 485 MPa

• Yield Strength (min): 170 MPa

• Elongation: 40% (min)

• Hardness: ≤ 217 HB

• Corrosion Resistance: Excellent against chlorides, acids, seawater environments.

🔹 Typical Applications:

• High-pressure chemical process lines

• Offshore / marine applications

• Heat exchanger piping

• High-temperature steam & condensate lines

• Desalination plant piping

Additional Information:

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317L stainless steel seamless pipe is a low-carbon, molybdenum-bearing austenitic stainless steel that offers superior corrosion resistance compared to 316L, especially in acidic and chloride-rich environments. The seamless manufacturing process ensures a smooth internal surface, making it ideal for high-pressure and high-temperature applications.

✅ Enhanced Corrosion Resistance:

• Higher molybdenum (3-4%) content provides excellent resistance to pitting, crevice corrosion, and general corrosion, especially in harsh environments.
• Performs better than 316L in acidic conditions (e.g., sulfuric, phosphoric, and acetic acids).

✅ High Strength & Durability:

• Superior mechanical properties at elevated temperatures.
• Withstands high pressure and stress.

✅ Low Carbon Content (L-Grade):

• Reduces carbide precipitation, preventing intergranular corrosion after welding.

✅ Smooth Internal Surface:

• Ideal for applications requiring hygienic and smooth flow (e.g., pharmaceuticals, food processing).

• Chromium (Cr): 18-20%
• Nickel (Ni): 11-15%
• Molybdenum (Mo): 3-4%
• Carbon (C): ≤ 0.03% (low carbon for better weldability)
• Manganese (Mn): ≤ 2%
• Silicon (Si): ≤ 1%

🏭 Chemical & Petrochemical Processing: Ideal for handling corrosive chemicals.
🚢 Marine & Offshore: Resistant to seawater corrosion.
🍽 Food & Beverage Industry: Hygienic piping systems.
💊 Pharmaceutical Industry: Used for sterile and clean applications.
🔥 Power Plants & Boilers: Withstands high temperatures and pressure.

✔ ASTM Standards: ASTM A312, ASTM A269, ASTM A213
✔ Size Range: ½" to 24" (or custom sizes)
✔ Wall Thickness: SCH 10, SCH 40, SCH 80, SCH 160, etc.
✔ Manufacturing Process: Cold Drawn / Hot Finished

Additional Information:

Approx. Rs 461 / KgGet Latest Price

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• Outside Diameter (OD): 19.05 mm (this is exactly ¾″ in imperial terms)

• Material: Stainless Steel (commonly grades like 304 / 304L / 316 / 316L depending on application)

Steel gauge isn’t an exact metric measurement, but commonly accepted approximate thickness values are:

So your pipes will be roughly:

• 19.05 × 1.90 mm (14 g)

• 19.05 × 1.60 mm (16 g)

• 19.05 × 1.20 mm (18 g)

• 19.05 × 0.90 mm (20 g)

Note: These gauge-to-mm conversions are standard approximations. Exact thickness can vary slightly with manufacturer and steel type.

These diameter/thickness ranges are commonly used for:

✅ Structural tubing
✅ Furniture frames
✅ Handrails
✅ Automotive parts
✅ Light industrial fabrication
✅ Food / beverage equipment (if grade 304/316)

Additional Information:

Approx. Rs 395 / KgGet Latest Price

Stainless Steel (SS) Seamless Pipes are metal tubes made without welds or joints. They are formed from a solid billet, ensuring:

• Higher strength and durability

• Better pressure handling

• Uniform structure with fewer defects

Seamless construction makes them ideal for critical fluid transfer, high-pressure systems, and demanding industrial environments.  

Both 304 and 316 are part of the 300-series austenitic stainless steels — known for good corrosion resistance, formability, and weldability.  

Composition (approx.):

• Chromium (Cr): 18–20%

• Nickel (Ni): 8–10.5%

• No molybdenum (Mo)

Key Properties

• Good corrosion resistance in general atmospheric and mild environments.

• More economical than 316. 

• Easy to fabricate and weld. 

Typical Uses

• Water supply and plumbing systems. 

• Food processing equipment (mild conditions). 

• Architectural and decorative piping. 

📌 Best choice for general industrial and indoor applications where corrosive exposure is limited. 

Composition (approx.):

• Chromium (Cr): 16–18%

• Nickel (Ni): 10–14%

• Molybdenum (Mo): 2–3%

Key Properties

• Superior corrosion resistance, especially vs chlorides, saltwater, acids and chemicals. 

• Performs well under harsh industrial and marine environments. 

• Slightly higher strength and heat resistance than 304. 

• Usually more expensive due to molybdenum. 

Typical Uses

• Marine and coastal piping (saltwater exposure). 

• Chemical and pharmaceutical processing plants. 

• High-pressure, corrosive fluid transfer systems.

📌 Best choice where corrosion resistance is critical or where the pipe is exposed to aggressive environment

When to choose SS 304

• Indoor piping

• Freshwater systems

• Architectural and non-corrosive industrial applications

When to choose SS 316

• Marine/costal environments

• Chemical processing lines

• High-corrosion or aggressive media exposure

Additional Information:

Approx. Rs 515 / KgGet Latest Price

SS 316L seamless pipe is a low-carbon austenitic stainless steel pipe manufactured without a welded seam, giving it uniform structure and high integrity.
The “L” grade indicates low carbon content (≤0.03%), which improves corrosion resistance, especially after welding.

Typical chemical composition (approx.):

• Chromium: 16–18%

• Nickel: 10–14%

• Molybdenum: 2–3%

• Carbon: ≤0.03%

• Resists acids, chlorides, solvents, and cleaning chemicals

• Suitable for aggressive pharma processing environments

• Performs well under frequent cleaning and sterilization cycles

• Seamless construction eliminates weld seams that can trap contaminants

• Smooth internal surface minimizes bacterial growth

• Suitable for CIP (Clean-in-Place) and SIP (Sterilize-in-Place) systems

• Common internal surface roughness for pharma use: Ra ≤ 0.8 μm

• Reduces risk of intergranular corrosion after welding

• Improves weld integrity and long-term reliability

• Ideal for complex piping systems with multiple joints

• Non-reactive with pharmaceutical products

• Does not leach contaminants

• Commonly accepted for product-contact surfaces in pharma manufacturing

SS 316L seamless pipes are widely used in:

• Water for Injection (WFI) systems

• Purified Water (PW) distribution lines

• Sterile process piping

• API (Active Pharmaceutical Ingredient) transfer lines

• CIP and SIP systems

• Biopharmaceutical and vaccine production facilities

• Compressed clean gas lines (clean air, nitrogen, etc.)

Standards:

• ASTM A312 / ASME SA312 (Seamless stainless steel pipes)

• Often aligned with ASME BPE requirements for pharma systems

Surface finishes:

• Pickled and passivated

• Mechanically polished

• Electropolished (preferred for critical pharma applications)

SS 316L seamless pipes are preferred in pharmaceutical applications because they offer:

• High corrosion resistance

• Excellent hygiene and cleanability

• Strong weld performance

• Long service life in sterile environments

• Compliance with stringent pharmaceutical requirements

They are ideal for transporting high-purity liquids, gases, and process media in pharmaceutical and biopharmaceutical facilities.

Additional Information:

Approx. Rs 325 / KgGet Latest Price

304 Seamless Pipe refers to a seamless stainless steel pipe made from 304-grade stainless steel. This type of pipe is widely used in industries due to its excellent corrosion resistance, durability, and ability to withstand high temperatures and pressures.

• Material: Stainless Steel 304 (SS 304)
• Manufacturing Process: Seamless (produced without welding joints)
• Corrosion Resistance: Excellent, particularly in acidic and oxidizing environments
• Strength & Durability: Stronger than welded pipes, suitable for high-pressure applications
• Temperature Resistance: Can withstand high temperatures, making it ideal for heat exchangers and chemical processing

• Oil & Gas Industry
• Chemical & Petrochemical Processing
• Food & Beverage Industry (due to hygienic properties)
• Pharmaceuticals
• Heat Exchangers & Boilers
• Automotive & Aerospace Components

• Standards: ASTM A312, ASTM A213, ASTM A269, etc.
• Sizes: Typically ranges from 1/8" to 24" in diameter
• Wall Thickness: Schedule 10, 20, 40, 80, 160, XXS, etc.

Would you like specifications for a specific standard or size?

Approx. Rs 365 / KgGet Latest Price

Grade: Stainless Steel 316
Product Type: Square Welded Pipe
Shape: Square
Manufacturing Process: Welded
Standards: ASTM A554 / ASTM A312 / ASTM A249 (as applicable)

• Corrosion Resistance: Excellent resistance to corrosion in marine and mildly acidic environments due to higher molybdenum content than 304.

• Weldability: Good weldability and formability; suitable for welding and fabrication.

• Strength & Durability: High tensile and yield strength with enhanced pitting and crevice corrosion resistance.

• Finish: Available in mill finish, polished (180/240/320 grit), or custom surface finishes as per requirement.

• Architectural & structural applications

• Food processing equipment

• Marine & coastal structures

• Pharmaceutical & chemical industries

• Decorative tubing and handrails

• Outside Dimensions (OD): Typically from 10mm x 10mm to 150mm x 150mm

• Wall Thickness: Ranges from 0.8mm to 6mm

• Length: Standard 6 meters or custom cut-to-length

Additional Information:

Approx. Rs 900 / KgGet Latest Price

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An SS Rectangle Tube (Stainless Steel Rectangular Tube) is a hollow structural section made from stainless steel, formed in a rectangular shape. It is widely used in construction, fabrication, and industrial applications due to its high strength, corrosion resistance, and clean appearance.

Key Features:

• Manufactured from stainless steel grades such as SS 304, SS 316, SS 202, etc.

• Rectangular cross-section with uniform wall thickness

• Excellent resistance to corrosion, rust, and heat

• Smooth surface finish (mill finish, brushed, or polished)

• High load-bearing capacity and long service life

• Easy to weld, cut, and fabricate

Common Applications:

• Structural frameworks and supports

• Architectural designs, railings, and gates

• Furniture manufacturing

• Industrial equipment and machinery frames

• Automotive and transportation components

Advantages:

• Strong and durable compared to mild steel

• Low maintenance

• Aesthetic and modern appearance

• Suitable for indoor and outdoor use

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