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Product Overview
STAINLESS STEEL 304 SEMI WELDED PIPES
Grade 304 is the most widely used austenitic stainless steel due to its outstanding resistance to oxidation, corrosion, moisture, chemicals, and atmospheric conditions. It contains approximately 18% chromium and 8% nickel, providing excellent durability and long service life across diverse operating environments.
These pipes are produced by cold-forming stainless steel strips into tubular shapes followed by a controlled welding process, ensuring uniform weld integrity and excellent dimensional control.
At Moksh Tubes & Fittings LLP, we are a trusted manufacturer, supplier, and exporter of SS 304 Semi Welded Pipes in India, supplying both domestic projects and Gulf / GCC markets including UAE, Saudi Arabia, Qatar, Oman, and Kuwait.
Our SS 304 Semi Welded Pipes are widely used in chemical processing, food & dairy, pharmaceuticals, water pipelines, oil & gas, fabrication, and architectural applications.
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Specifications
| Category | Details |
|---|---|
| Material | Stainless Steel 304 |
| UNS Number | S30400 |
| WERKSTOFF NR. | 1.4301 |
| Standard | ASTM A312, ASTM A554, ASTM A249, ASTM A269 |
| Manufacturing | Semi Welded |
| Outer Diameter (OD) | 6 mm to 610 mm |
| Wall Thickness | 0.5 mm to 12.7 mm |
| Length | Up to 12 Meters |
| Surface Finish | Mill Finish, Polished, Bright Annealed, Pickled & Passivated |
| Pipe Ends | Plain End, Beveled End, Threaded End |
| Form | Round, Square, Rectangular |
| Pipe Schedules | SCH 5S, 10S, 40S, 80S, 160S, XXS |
Size & Weight Chart – SS 304 Semi Welded Pipes
SS 304 Semi Welded Pipes are available in standard schedules:
📌 Weights are
theoretical (kg/m) | 📌 Dimensions as per ASTM A312 | 📌 Custom OD & wall thickness available
Schedule 10S
| NB (Inch) | OD (mm) | WT (mm) | Weight (kg/m) |
|---|---|---|---|
| 1/8" | 10.30 | 1.24 | 0.28 |
| 1/4" | 13.70 | 1.65 | 0.49 |
| 3/8" | 17.10 | 1.65 | 0.63 |
| 1/2" | 21.34 | 2.11 | 0.85 |
| 3/4" | 26.67 | 2.11 | 1.12 |
| 1" | 33.40 | 2.77 | 1.41 |
| 1-1/4" | 42.16 | 2.77 | 1.80 |
| 1-1/2" | 48.26 | 2.77 | 2.09 |
| 2" | 60.33 | 2.77 | 2.64 |
| 2-1/2" | 73.03 | 3.05 | 3.42 |
| 3" | 88.90 | 3.05 | 4.18 |
| 4" | 114.30 | 3.05 | 5.44 |
| 5" | 141.30 | 3.40 | 6.75 |
| 6" | 168.28 | 3.40 | 8.07 |
| 8" | 219.08 | 3.76 | 10.54 |
| 10" | 273.05 | 4.19 | 13.19 |
| 12" | 323.85 | 4.57 | 15.67 |
Schedule 40S
| NB (Inch) | OD (mm) | WT (mm) | Weight (kg/m) |
|---|---|---|---|
| 1/8" | 10.30 | 1.73 | 0.37 |
| 1/4" | 13.70 | 2.24 | 0.64 |
| 3/8" | 17.10 | 2.31 | 0.86 |
| 1/2" | 21.34 | 2.77 | 1.27 |
| 3/4" | 26.67 | 2.87 | 1.69 |
| 1" | 33.40 | 3.38 | 2.50 |
| 1-1/4" | 42.16 | 3.56 | 3.39 |
| 1-1/2" | 48.26 | 3.68 | 4.05 |
| 2" | 60.33 | 3.91 | 5.44 |
| 2-1/2" | 73.03 | 5.16 | 7.58 |
| 3" | 88.90 | 5.49 | 10.26 |
| 4" | 114.30 | 6.02 | 13.49 |
| 5" | 141.30 | 6.55 | 18.24 |
| 6" | 168.28 | 7.11 | 21.86 |
| 8" | 219.08 | 8.18 | 28.55 |
| 10" | 273.05 | 9.27 | 35.95 |
| 12" | 323.85 | 9.53 | 49.56 |
Grades Available
SS 304 (UNS S30400)
Excellent corrosion resistance & strength
SS 304L (UNS S30403)
Low carbon, improved weld corrosion resistance
Equivalent Grades
EN 1.4301 / 1.4307
JIS SUS 304 / 304L
NICKEL ALLOYS
STAINLESS STEEL
DUPLEX & SUPER
TITANIUM ALLOYS
Haynes Superalloys
Inconel
Applications
Food, Dairy & Beverage
✔ Milk pipelines
✔ Brewery & juice processing lines
Chemical & Pharmaceutical
✔ Chemical transfer pipelines
✔ Reactor & process piping
Oil & Gas / Industrial
✔ Utility piping
✔ Instrumentation lines
Water & Plumbing Systems
✔ Drinking water pipelines
✔ RO & water treatment plants
Architectural & Structural
✔ Handrails, supports, frames
✔ Decorative stainless steel works
Advantages of Stainless Steel 304 Semi Welded Pipes
Corrosion Resistant
Excellent resistance to oxidation and rust.
Long Service Life
Durable performance in demanding environments.
Attractive Appearance
Smooth and aesthetically pleasing surface finish.
Easy Fabrication
Can be welded, bent, and formed easily.
Cost Effective Solution
Provides excellent value for industrial projects.
Low Maintenance
Requires minimal maintenance during service life.
Mechanical Properties
Mechanical Properties of SS 304 Semi Welded Pipes
| Property | SS 304 |
|---|---|
| Tensile Strength | Min. 515 MPa |
| Yield Strength (0.2%) | Min. 205 MPa |
| Elongation | Min. 40% |
| Hardness (HB) | Max. 201 |
📌 SS 304 offers excellent strength and durability for general piping applications.
WHY CHOOSE US?
Frequently Asked Questions (FAQ)
What are Stainless Steel 304 Semi Welded Pipes?
These are pipes manufactured from SS 304 coils using a controlled welding process, offering excellent corrosion resistance and durability.
Are SS 304 Semi Welded Pipes corrosion resistant?
Yes, they provide excellent resistance to corrosion, oxidation, and atmospheric exposure.
What is the difference between seamless and semi welded pipes?
Seamless pipes are manufactured without a weld seam, while semi welded pipes are produced by welding formed stainless steel strips.
Do you provide test certificates?
Yes, all supplies include EN 10204 3.1 certificates.
What is delivery time?
Ex-stock items: 2–5 working days
Manufacturing orders: 2–4 weeks
Contact Us
Looking for SS 304 Semi Welded Pipes for industrial or export projects?
📞 Call: +91 97695 84950
🌐 Moksh Tubes & Fittings LLP - Precision stainless steel piping solutions you can
trust.