ASTM A312 TP316 Stainless Steel Pipe
ASTM A312 TP316 stainless steel pipe combines ASTM A312 manufacturing and test requirements with the molybdenum-bearing TP316 grade. It may be selected for process piping where the specified environment requires different corrosion performance from TP304. Grade suitability depends on the complete chemistry, chloride level, temperature, pressure, flow, fabrication, and cleaning conditions.
Typical TP316 Piping Applications
- Chemical and process piping for fluids confirmed as compatible with TP316.
- Industrial water, heat-transfer, and utility systems with project-specific corrosion review.
- Fabricated equipment connections and piping assemblies produced to the applicable code and drawing.
The presence of molybdenum does not make TP316 resistant to every chloride or chemical environment. Crevice geometry, deposits, shutdown conditions, and temperature can materially change performance.
Specify TP316 for Quotation
Provide the ASTM A312 edition, seamless or welded construction, NPS or outside diameter, schedule or wall thickness, length, quantity, end preparation, heat treatment, surface condition, testing, inspection, and documentation. Include the design code and any supplementary requirements that apply to the project.
Compare ASTM A312 TP316L pipe, review 316 stainless steel properties, or return to the ASTM A312 specification page.
ASTM A312 TP316 FAQ
Is TP316 suitable for seawater?
Do not assume suitability from the grade name alone. Chloride concentration, temperature, oxygen, velocity, crevices, deposits, and maintenance conditions must be evaluated by the project engineer.
How is TP316 different from TP316L?
TP316L has a lower maximum carbon limit. Welding, heat exposure, mechanical requirements, and the purchase specification help determine which grade is appropriate.
What should be included in the inspection plan?
Identify material traceability, dimensional checks, visual examination, pressure testing, specified NDT, acceptance criteria, and documentation. See our quality testing information.
| Production Standard: | ASTM A312 |
| Material Grades: | TP316 / 1.4401 |
| Types: | Seamless or Welded(TIG/PLASMA) |
| Tube OD: | 1/8″ – 80″, DN6-DN2000, 10.3-2032mm |
| Wall Thickness: | SCH5S – SCH80S |
| Surface: | Annealed & Pickled, Bead Blasted, Brushed Finish |
| Testing: | Hydrostatic Test, Pneumatic Test, Eddy Current Test(ECT), Ultrasonic Test (UT), X-ray Test |
| Certification: | TUV ISO 9001:2015, PED 2014/68/EU, AD 2000-W0. |
| Mill Test Certificate (MTC): | EN10204 3.1 |
| For more technical requirements and dimension specifications, please contact us to obtain support from our Engineering Department. | |
- Production Standard:
- Material Grades:
- Types:
- Tube OD:
- Wall Thickness:
- Surface:
- Testing:
- Certification:
- MTC:
- ASTM, ASME, EN, ISO, JIS
- 304/1.4301, 304L/1.4307, 316/1.4401, 316L/1.4404, 321/1.4541, 2205(S31803)/1.4462 etc.
- Seamless or Welded (TIG/PLASMA)
- 1/8" to 80", DN6-DN2000, 10.3-2032mm
- SCH5S – SCH80S
- Annealed & Pickled, Bead Blasted, Brushed Finish
- Hydrostatic Test, Pneumatic Test, Eddy Current Test (ECT), Ultrasonic Test (UT), X-ray Test
- TUV ISO 9001:2015, PED 2014/68/EU, AD 2000-W0.
- EN10204 3.1
ASTM A312 stainless steel pipe sizes and dimensions should conform to ANSI B36.19, nominal pipe size (NPS) ranges from NPS 1/8 [10.29 mm] to NPS 80 [2032 mm], Schedule number for wall thickness from Sch 5s to Sch 80s, more Pipe Schedule Sizes  are specified for special applications, the value stated respectively for a specific size, average wall and minimum wall pipe are available.
| Nominal Size | OD | Wall Thickness, SCHEDULE | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPS | DN | mm | 5S | 10S | 10 | 20 | 30 | 40S | STD | 40 | 80S | XS | 80 | 100 | 120 | 140 | 160 | XXS | |
| 1∕8" | 6 | 10.3 | 1.24 | 1.73 | 1.73 | 1.73 | 2.41 | 2.41 | 2.41 | ||||||||||
| 1∕4" | 8 | 13.7 | 1.65 | 2.24 | 2.24 | 2.24 | 3.02 | 3.02 | 3.02 | ||||||||||
| 3∕8" | 10 | 17.2 | 1.65 | 2.31 | 2.31 | 231 | 3.2 | 3.2 | 3.2 | ||||||||||
| 1∕2" | 15 | 21.3 | 1.65 | 2.11 | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 | 3.73 | 4.78 | 7.47 | |||||||
| 3∕4" | 20 | 26.7 | 1.65 | 2.11 | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 | 3.91 | 5.56 | 7.82 | |||||||
| 1" | 25 | 33.4 | 1.65 | 2.77 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 4.55 | 6.35 | 9.09 | |||||||
| 1-1∕4" | 32 | 42.2 | 1.65 | 2.77 | 3.56 | 3.56 | 3,56 | 4.85 | 4.85 | 4.85 | 6.35 | 9.7 | |||||||
| 1-1∕2" | 40 | 48.3 | 1.65 | 2.77 | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 | 5.08 | 7.14 | 10.15 | |||||||
| 2" | 50 | 60.3 | 1.65 | 2.77 | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 | 5.54 | 8.74 | 11.07 | |||||||
| 2-1∕2" | 65 | 73 | 2.11 | 3.05 | 5.16 | 5.16 | 5.16 | 7.01 | 7.01 | 7.01 | 9.53 | 14.02 | |||||||
| 3" | 80 | 88.9 | 2.11 | 3.05 | 5.49 | 5.49 | 5.49 | 7.62 | 7.62 | 7.62 | 11.13 | 15.24 | |||||||
| 3-1∕2" | 90 | 101.6 | 2.11 | 3.05 | 5.74 | 5.74 | 5.74 | 8.08 | 8.08 | 8.08 | |||||||||
| 4" | 100 | 114.3 | 2.11 | 3.05 | 6.02 | 6.02 | 6.02 | 8.56 | 8.56 | 8.54 | 11.13 | 13.49 | 17.12 | ||||||
| 5" | 125 | 141.3 | 2.77 | 3.4 | 6.55 | 6.55 | 6.55 | 9.53 | 9,53 | 9.53 | 12.7 | 15.88 | 19.05 | ||||||
| 6" | 150 | 168.3 | 2.77 | 3.4 | 7.11 | 7.11 | 7.11 | 10.97 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | ||||||
| 8" | 200 | 219.1 | 2.77 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 8.18 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 | ||
| 10" | 250 | 273.1 | 3.4 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 25.4 | ||
| 12" | 300 | 323.9 | 3.96 | 4.57 | 6.35 | 8.38 | 9.53 | 9.53 | 10.31 | 12.7 | 12.7 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 | ||
| 14" | 350 | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 12.7 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | ||||
| 16" | 400 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 12.7 | 21.44 | 26.19 | 30.95 | 36.53 | 40.49 | ||||
| 18" | 450 | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 12.7 | 23.83 | 29.36 | 34.93 | 39,67 | 45.24 | ||||
| 20" | 500 | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 12.7 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | ||||
| 22" | 550 | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | |||||
| 24" | 600 | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 12.7 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | ||||
| 26" | 650 | 660.4 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||||||
| 28" | 700 | 711.2 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||||||
| 30" | 750 | 762 | 6.35 | 7.92 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||||
| 32" | 800 | 812.8 | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | 12.7 | ||||||||||
| 34" | 850 | 863.6 | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | 12.7 | ||||||||||
| 36" | 900 | 914.4 | 7.92 | 12.7 | 15.88 | 19.05 | 9.53 | 19.05 | 12.7 | ||||||||||
| 38" | 950 | 965.2 | - | 9.53 | 12.7 | ||||||||||||||
| 40" | 1000 | 1016 | - | 9.53 | 12.7 | ||||||||||||||
| Standard | Outside Diameter(mm) | Thickness(mm) | Length(mm) | |
|---|---|---|---|---|
| ASTM A312 | ≤48.26 | -0.4 | unspecified -12.50% | Definite cut length +6.40 -0 |
| >48.26~114.30 | 0 | |||
| >114.30-219.08 | 0.8 | |||
| >219.08~457.20 | 1.6 | |||
| >457-660 | -4 | |||
| >660-864 | -5 | |||
| >864-1219 | -5.6 | |||
| EN 10217-7 | D1±1.50% with ±0.75mm(min) D2±1.00% with ±0.50mm(min) D3±1.75% with ±0.30mm(min) D4±0.50% with ±0.10mm(min) EN ISO 1127 | T1±15.00% with±0.60mm(min) T2±12. 5% with ±0.40mm(min) T3±10.00% with±0.20mm(min) T4±7.50% with ±0.15mm(min) T5±5.00% with ±0.10mm(min) EN ISO 1127 | ＜6000 +5.00 6000~12000 +10.00 | |
| Property | Tensile Strength | Yield Strength(0.2% offset) | Elongation (in 2″) | Hardness (Rockwell B) |
| Value | ≥515 MPa (75 ksi) | ≥ 205 MPa (30 ksi) | ≥35% | ≤95 HRB |
| Element | C | Ma | P | S | Si | Cr | Ni | Mo | N |
| Composition (%) | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | ≤0.10 |
| Standard | Equivalent Grade |
| UNS | S31600 |
| EN (Europe) | 1.4401 |
| JIS (Japan) | SUS 316 |
1, Oil & Gas Industry
Transportation of crude oil, natural gas, and refined products Â
Offshore platforms and pipelines (resistant to seawater corrosion)
Downhole tubing and casing in harsh environments Â
2, Chemical & Petrochemical Industry
Acid and chemical transport (resistant to corrosive substances) Â
Heat exchangers, reactors, and storage tanks Â
Highpressure and hightemperature applications Â
3, Food & Beverage Industry
Sanitary tubing for milk, beer, juice, and other liquids Â
Dairy processing and brewing equipment (easy to clean, nonreactive) Â
Conveying systems for food production Â
4, Pharmaceutical & Biotechnology
Highpurity piping for drug manufacturing Â
Sterile processing and cleanroom applications Â
Bioreactors and filtration systems Â
5, Water Treatment & Desalination
Seawater desalination plants (resistant to saltwater corrosion) Â
Wastewater treatment and distribution systems Â
Hydraulic and plumbing systems Â
6, Power Generation
Boiler tubes and steam pipelines in thermal power plants Â
Nuclear power plant cooling systems Â
Exhaust systems and heat recovery units Â
7, Automotive & Aerospace
Exhaust systems (e.g., manifolds, mufflers) Â
Hydraulic and fuel lines Â
Aircraft structural components and jet engine parts Â
8, Construction & Architecture
Structural frameworks and handrails Â
Underground piping for drainage and HVAC systems Â
Decorative applications (e.g., facades, bridges) Â
9, Pulp & Paper Industry
Chemical recovery systems Â
Bleaching and digesting equipment Â
Piping for corrosive pulp processing liquids Â
10, Mining & Mineral Processing
Slurry transport pipelines Â
Acid leaching systems Â
Dewatering and tailings management Â
