316 Stainless Steel Welded Pipes

A 316 stainless steel welded pipe is made from molybdenum-alloyed 316L strip by longitudinal welding and resists pitting corrosion better than 304.
It is used on lines carrying chlorides or aggressive fluids in seawater, pool, chemical, pharmaceutical and food processes. Diameter, wall thickness and length are confirmed against stock.
Main Applications
- Seawater and brine lines
- Pool and chlorinated water systems
- Chemical and pharmaceutical processes
- Food and beverage lines
- Wastewater treatment plants
- Outdoor coastal installations
Technical Data
| Material | AISI 316L (1.4404, X2CrNiMo17-12-2) |
|---|---|
| Chemical composition | Cr 16.5–18.5%; Ni 10–13%; Mo 2–2.5% (EN 10088) |
| Manufacture | Longitudinally welded |
| Standard | EN 10217-7; ASTM A312 (TP316L) |
| Dimension standard | EN ISO 1127, ASME B36.19M |
| Wall series | SCH 5S, 10S, 40S (depending on model) |
| Diameter and length | Depending on model, please ask |
| Surface | Pickled or polished (depending on model) |
| Certificate | EN 10204 3.1 (depending on model) |
| Pressure rating | Calculated from diameter, wall and temperature |
Material Options
| Property | Welded 304L | Welded 316L | 316Ti |
|---|---|---|---|
| Material number | 1.4307 | 1.4404 | 1.4571 |
| Molybdenum | None | 2 – 2.5% | Present (depending on model) |
| Chloride resistance | Medium | High | High |
| Typical use | General water, food | Chemical, seawater, pools | High-temperature chemical |
Which material? Its molybdenum content makes 316L more resistant than 304 in chloride media. Composition values follow EN 10088; diameter and wall options are confirmed against stock and production schedules.
Advantages
Chloride Resistant
- Molybdenum alloyed
Weld-Friendly
- Low carbon
Hygienic
- Food and pharma
Long Life
- In aggressive media
Construction and Design Features
- 316L stainless strip
- Longitudinal weld seam
- Pickled surface (depending on model)
- Square-cut ends
Send the outside diameter, wall thickness, metres and fluid; we will confirm welded 316L pipe and lead time.
How to Choose?
- Determine diameter and wallChoose outside diameter and wall thickness.
- Check the pressureConfirm the wall for pressure and temperature.
- Define the fluidState chloride and chemical content.
- Surface and certificateWrite polishing and 3.1 certificate needs.
Complementary Products
Why ORFA?
Other Stainless Steel Pipes

304 Stainless Steel Welded Pipes
304 stainless steel welded pipes are corrosion resistant pipes used in water, food and general process installations.
Details →316 Stainless Steel Seamless Pipes
316 stainless steel seamless pipes contain molybdenum, resist chemical and chloride environments and suit high pressure lines.
Details →
304 Stainless Steel Seamless Pipes
304 stainless steel seamless pipes have no weld seam and provide safe use in pressurized lines.
Details →Get a quote for your project
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