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SS 316 Semi Welded Pipes
SS 316 Semi Welded Pipes are manufactured from austenitic stainless steel grade 316 (UNS S31600), containing chromium, nickel, and molybdenum. This composition enhances resistance to pitting, crevice corrosion, and chloride attack, especially in humid, coastal, and mildly chemical environments.
Unlike heavy-pressure ASTM piping, semi welded pipes are primarily used in structural and decorative applications where moderate mechanical strength and corrosion resistance are required.
Common usage areas include:
- Architectural railings
- Marine structures
- Fabrication frameworks
- Furniture manufacturing
- Utility water lines
- Coastal installations
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Specifications
| Category | Details |
|---|---|
| Material | Stainless Steel 316 |
| UNS No. | S31600 |
| Type | Semi Welded / Light Welded |
| OD Range | 12 mm to 219 mm |
| Wall Thickness | 0.5 mm to 3.0 mm |
| Length | 6 meters / Custom Cut |
| Finish | Mirror, Matt, Satin, Brushed |
| Shape | Round / Square / Rectangular |
| Applications | Structural, Decorative, Marine Utility |
Standard Pipe Size Chart (ASME B36.19M)
| NB (Inch) | OD (mm) | SCH 10S | SCH 40S | SCH 80S |
|---|---|---|---|---|
| 1/2" | 21.34 | 2.11 | 2.77 | 3.73 |
| 3/4" | 26.67 | 2.11 | 2.87 | 3.91 |
| 1" | 33.40 | 2.77 | 3.38 | 4.55 |
| 1 1/2" | 48.26 | 2.77 | 3.68 | 5.08 |
| 2" | 60.33 | 2.77 | 3.91 | 5.54 |
| 3" | 88.90 | 3.05 | 5.49 | 7.62 |
| 4" | 114.30 | 3.05 | 6.02 | 8.56 |
| 6" | 168.28 | 3.40 | 7.11 | 10.97 |
| 8" | 219.08 | 3.76 | 8.18 | 12.70 |
| 10" | 273.05 | 4.19 | 9.27 | 15.09 |
| 12" | 323.85 | 4.57 | 9.53 | 17.48 |
Weight Chart (Kg Per Meter – Approx.)
| NB | SCH 10S | SCH 40S | SCH 80S |
|---|---|---|---|
| 1" | 2.21 | 2.68 | 3.48 |
| 2" | 3.99 | 5.45 | 7.50 |
| 3" | 6.64 | 11.32 | 15.31 |
| 4" | 8.38 | 16.11 | 22.34 |
| 6" | 14.12 | 28.31 | 42.66 |
| 8" | 18.69 | 42.63 | 65.42 |
| 10" | 27.89 | 60.54 | 100.45 |
| 12" | 32.24 | 74.76 | 139.75 |
Applications of SS 316 Semi Welded Pipes
Marine & Coastal Installations
- Seafront railings
- Marine utility structures
- Coastal infrastructure
Architectural & Decorative
- Balcony railings
- Staircase frames
- Exterior cladding support
Fabrication & Structural
- Frameworks
- Industrial racks
- Support structures
Furniture Manufacturing
- Stainless steel furniture frames
- Display units
Utility & Water Systems
- Low-pressure water lines
- Drainage support systems
Advantages of SS 316 Semi Welded Pipes
Better corrosion resistance than SS 304
Suitable for coastal & marine environments
Lightweight and easy to install
Attractive polished finish
Cost-effective alternative to heavy ASTM pipes
Durable and low maintenance
Why Choose Moksh Tubes & Fittings LLP?
FAQ – SS 316 Semi Welded Pipes
What is the difference between SS 316 semi welded and fully welded pipes?
Semi welded pipes are generally used for structural, architectural, and decorative applications, while fully welded pipes are preferred for demanding industrial and high-pressure applications.
Is SS 316 suitable for coastal and marine environments?
Yes. SS 316 contains molybdenum, which provides better resistance to chloride, saltwater, and marine environments compared with SS 304.
Can SS 316 semi welded pipes be polished?
Yes. These pipes can be supplied with mirror, satin, brushed, or matt finishes according to the application and aesthetic requirements.
Are custom shapes and sizes available?
Yes. SS 316 semi welded pipes can be supplied in round, square, and rectangular shapes, with customized sizes available as per customer requirements.
What industries commonly use SS 316 semi welded pipes?
They are commonly used in architectural projects, marine applications, chemical industries, food processing, pharmaceutical facilities, and decorative structures.
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