ASTM A358 EFW TP316L Stainless Steel Pipe ASME B36.19M Schedule 10S Manufacturer & Supplier
ASTM A358 / ASME SA358 covers electric-fusion-welded (EFW) austenitic chromium-nickel stainless steel pipe for corrosive or high-temperature service. TP316L is a low-carbon (≤0.03% C) version of 316 stainless steel, offering excellent chloride resistance and reduced risk of intergranular corrosion.
| Item | Specification |
|---|---|
| Product Name | 3 Inch ASTM A358 EFW TP316L Stainless Steel Pipe |
| Material Grade | TP316L / UNS S31603 |
| Manufacturing Process | EFW (Electric Fusion Welded) |
| Product Type | Welded Stainless Steel Pipe |
| Standard | ASTM A358 |
| Dimension Standard | ASME B36.19M |
| Nominal Pipe Size | 3 Inch (NPS 3) |
| Schedule | Schedule 10S (Sch 10S) |
| Outside Diameter (OD) | 88.90 mm (3.500 inch) |
| Wall Thickness | 2.11 mm |
| Inside Diameter (ID) | Approx. 84.68 mm |
| Weight | Approx. 4.52 kg/m |
| Length | 6 m, 12 m, or Customized |
| Surface Finish | Annealed & Pickled (AP), Bright Annealed (BA), Polished |
| Pipe End | Plain End, Beveled End |
| Welding Method | Electric Fusion Welding with Filler Metal |
| Welding Filler Metal | ER316L |
| Heat Treatment | Solution Annealing |
| Testing | Radiographic Testing (RT), Hydrostatic Test, PMI, UT, Eddy Current Test |
| Certification | EN 10204 3.1 Mill Test Certificate |
Standard: ASTM A358
Grade: TP316L (UNS S31603)
Nominal Pipe Size: 3 Inch (NPS 3)
Wall Thickness: 2.11mm
Weight:Approx. 4.52 kg/m
Length:6 m, 12 m, or Customized
Outside Diameter (OD):88.90 mm (3.500 inch)
ASTM A358 covers Electric Fusion Welded (EFW) Austenitic Stainless Steel Pipe for corrosive or high-temperature applications. The standard defines different pipe classes based on welding procedures, filler metal requirements, and inspection methods.
For ASTM A358 TP316L Stainless Steel Pipe, selecting the correct class depends on the pressure rating, service environment, welding quality requirements, and application standards.
| Class | Welding Requirements | Inspection Requirements | Typical Applications |
|---|---|---|---|
| Class 1 | All welds are made with filler metal | 100% radiographic examination (RT) of all weld seams | Critical pressure piping, petrochemical, chemical processing |
| Class 2 | All welds are made with filler metal | No mandatory radiographic testing unless specified | General industrial piping systems |
| Class 3 | Welds are made with filler metal | Each weld pass is completely radiographed | High reliability piping applications |
| Class 4 | Similar to Class 1, but welding requirements may vary depending on specifications | 100% radiographic examination required | Special engineering applications |
| Class 5 | Multiple weld passes allowed with filler metal | Each weld pass is radiographically examined | Heavy wall and large diameter stainless steel pipe |
Common welding methods for ASTM A358 TP316L Stainless Steel Pipe include:
- EFW (Electric Fusion Welding)
- GTAW (Gas Tungsten Arc Welding / TIG)
- SAW (Submerged Arc Welding)
Typical filler metals:
| Base Material | Recommended Filler Metal |
|---|---|
| TP316L Stainless Steel | ER316L |
| TP316 Stainless Steel | ER316 |
| Duplex Stainless Steel | ER2209 |
ER316L filler metal provides:
- Excellent corrosion resistance
- Good weld strength
- Reduced risk of intergranular corrosion
The absolute roughness of 316L stainless steel pipe is an important parameter used in fluid flow calculations, including pressure drop analysis, Reynolds number calculations, friction factor estimation, and pipeline design.
For a clean commercial 316L stainless steel pipe, the typical absolute roughness values are:
| Pipe Condition | Absolute Roughness (ε) |
|---|---|
| New seamless 316L stainless steel pipe | 0.0015 mm (0.000059 in) |
| New welded 316L stainless steel pipe | 0.002–0.005 mm (0.000079–0.000197 in) |
| Smooth polished 316L stainless steel pipe | 0.0005–0.001 mm |
| Commercial stainless steel pipe (commonly used design value) | 0.015 mm (0.0006 in) |
| Aged/corroded stainless steel pipe | 0.05 mm or higher |
For engineering calculations, the commonly accepted value is:
Absolute Roughness (ε) = 0.015 mm
This value is widely used for:
- ASTM A312 TP316L seamless stainless steel pipe
- ASTM A358 EFW TP316L stainless steel pipe
- Schedule 10S stainless steel pipe
- Schedule 40S stainless steel pipe
| Material | Absolute Roughness (mm) |
|---|---|
| Electropolished 316L Stainless Steel | 0.0005–0.001 |
| New 316L Stainless Steel Pipe | 0.0015 |
| Commercial Stainless Steel Pipe | 0.015 |
| Carbon Steel Pipe | 0.045 |
| Galvanized Steel Pipe | 0.15 |
| Cast Iron Pipe | 0.26 |
316L stainless steel has one of the lowest roughness values among industrial piping materials, which helps reduce:
- Pressure loss
- Turbulence
- Energy consumption
- Product contamination risk
- Chemical Processing Industry – Used for TP316L stainless steel pipe for chemical processing, including corrosive fluid pipelines, acid handling systems, and process equipment.
- Petrochemical & Oil Industry – Suitable for ASTM A358 TP316L EFW pipe for petrochemical applications, refinery piping, and high-temperature process systems.
- Marine & Offshore Engineering – Ideal for TP316L stainless steel pipe for marine applications, seawater pipelines, offshore platforms, and saltwater environments.
- Pharmaceutical & Food Processing – Applied in high purity stainless steel pipe systems, sanitary piping, and clean production equipment.
- Water Treatment & Desalination – Used as corrosion resistant stainless steel pipe for water treatment, RO systems, and desalination plants.
- Heat Exchanger & Power Generation – Suitable for ASTM A358 stainless steel pipe for heat exchanger applications and industrial cooling systems.
ASTM A358 EFW TP316L Stainless Steel Pipe is an Electric Fusion Welded (EFW) stainless steel pipe manufactured according to ASTM A358 using TP316L stainless steel. It is designed for applications requiring excellent corrosion resistance, high strength, and reliable welded performance.
2. What is the difference between TP316L and TP316 stainless steel pipe?TP316L has a lower carbon content (≤0.030%) than TP316, providing better resistance to intergranular corrosion after welding. It is widely used for chemical processing, marine, and pharmaceutical piping systems.
3. What is the standard for ASTM A358 TP316L Stainless Steel Pipe?The pipe is manufactured according to ASTM A358 with dimensions based on ASME B36.19M Stainless Steel Pipe Standard. It is commonly supplied in Schedule 10S, Schedule 40S, and other wall thicknesses.
4. What is Schedule 10S stainless steel pipe?Schedule 10S stainless steel pipe refers to a pipe wall thickness specification designed for stainless steel piping systems. It provides a lightweight solution while maintaining good corrosion resistance and flow performance.
5. What are the applications of ASTM A358 TP316L EFW Stainless Steel Pipe?- Chemical processing plants
- Petrochemical pipelines
- Marine and offshore projects
- Pharmaceutical equipment
- Food processing systems
- Water treatment facilities
- Heat exchanger systems
ASTM A358 TP316L pipe is manufactured using Electric Fusion Welding (EFW) with approved filler metals such as ER316L to ensure excellent weld quality and corrosion resistance.
7. What sizes are available for TP316L EFW Stainless Steel Pipe?We supply various sizes with customized:
- Outside Diameter (OD)
- Wall Thickness
- Schedule 10S / Schedule 40S
- Length
- Surface Finish
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