ASTM A312 TP316L 3 Inch Schedule 10S Seamless Stainless Steel Pipe For Petrochemical Applications
ASTM A312 TP316L 3 Inch Schedule 10S Stainless Steel Seamless Pipe is a corrosion-resistant austenitic stainless steel pipe designed for demanding petrochemical, chemical processing, oil and gas, and industrial piping applications. Manufactured to ASTM A312/A312M requirements, TP316L offers excellent resistance to chloride-containing environments, chemical media, and general corrosion.
ASTM A312 TP316L 3 Inch Schedule 10S Pipe Specifications
| Parameter |
Specification |
| Product Name |
3 Inch Schedule 10S Seamless Stainless Steel Pipe |
| Material Grade |
ASTM A312 TP316L |
| Standard |
ASTM A312 / A312M |
| Pipe Size |
NPS 3 Inch |
| Nominal Diameter |
DN80 |
| Schedule |
10S |
| Outside Diameter (OD) |
3.500 in. / 88.90 mm |
| Wall Thickness |
0.120 in. / 3.05 mm |
| Inside Diameter (Approx.) |
3.26 in. / 82.80 mm |
| Manufacturing Process |
Seamless |
| Pipe Type |
Austenitic Stainless Steel Pipe |
| Surface |
Pickled / Annealed, or as specified |
| End Type |
Plain End / Beveled End |
| Length |
5.8 m / 6 m / 11.8 m / 12 m, or customized |
| Heat Treatment |
Solution Annealed |
| Testing |
Hydrostatic or Nondestructive Electric Test as specified by ASTM A312 |
| Application |
Petrochemical Processing, Chemical Processing, Process Piping, Oil & Gas |
Product Overview
The Schedule 10S wall thickness provides a lightweight piping solution for applications where corrosion resistance, clean internal surfaces, and reliable mechanical performance are more important than heavy-wall pressure containment.
As a seamless stainless steel pipe, TP316L Schedule 10S is manufactured without a longitudinal weld seam, making it suitable for piping systems requiring consistent structural integrity and resistance to localized corrosion.
Available Sizes – ASTM A312 TP316L Seamless Stainless Steel Pipe
Our 3 inch 316L Schedule 10S pipe is manufactured to ASTM A312 requirements and is available with standard NPS dimensions for process, chemical and petrochemical piping. The following table provides key 3 inch stainless steel pipe dimensions, including nominal size, outside diameter, wall thickness and approximate inside diameter.
| Nominal Pipe Size (NPS) |
DN |
Schedule |
Outside Diameter (OD) |
Wall Thickness |
Approx. Inside Diameter |
Approx. Weight |
| 1/2" |
DN15 |
10S |
21.34 mm |
2.11 mm |
17.12 mm |
1.00 kg/m |
| 3/4" |
DN20 |
10S |
26.67 mm |
2.11 mm |
22.45 mm |
1.28 kg/m |
| 1" |
DN25 |
10S |
33.40 mm |
2.77 mm |
27.86 mm |
2.09 kg/m |
| 1-1/4" |
DN32 |
10S |
42.16 mm |
2.77 mm |
36.62 mm |
2.69 kg/m |
| 1-1/2" |
DN40 |
10S |
48.26 mm |
2.77 mm |
42.72 mm |
3.11 kg/m |
| 2" |
DN50 |
10S |
60.33 mm |
2.77 mm |
54.79 mm |
3.93 kg/m |
| 2-1/2" |
DN65 |
10S |
73.03 mm |
3.05 mm |
66.93 mm |
5.26 kg/m |
| 3" |
DN80 |
10S |
88.90 mm |
3.05 mm |
82.80 mm |
6.45 kg/m |
| 4" |
DN100 |
10S |
114.30 mm |
3.05 mm |
108.20 mm |
8.34 kg/m |
| 5" |
DN125 |
10S |
141.30 mm |
3.40 mm |
134.50 mm |
11.62 kg/m |
| 6" |
DN150 |
10S |
168.28 mm |
3.40 mm |
161.48 mm |
13.92 kg/m |
| 8" |
DN200 |
10S |
219.08 mm |
3.76 mm |
211.56 mm |
19.95 kg/m |
| 10" |
DN250 |
10S |
273.05 mm |
4.19 mm |
264.67 mm |
27.74 kg/m |
| 12" |
DN300 |
10S |
323.85 mm |
4.57 mm |
314.71 mm |
35.98 kg/m |
ASTM A312 TP316L Pipe Dimensions
The ASTM A312 TP316L pipe dimensions are specified according to the applicable stainless steel pipe dimensional requirements. For the featured 3-inch size, the pipe has an outside diameter of 88.90 mm and a nominal wall thickness of 3.05 mm under Schedule 10S. The approximate internal diameter is 82.80 mm.
316L Seamless Pipe Dimensions
The 316L seamless pipe dimensions vary according to nominal pipe size and schedule. For the featured 3 inch seamless stainless steel pipe, the standard dimensional combination is 88.90 mm OD × 3.05 mm wall thickness. These dimensions provide a relatively lightweight pipe configuration for process piping while maintaining the corrosion resistance associated with TP316L stainless steel.
Schedule 10S Stainless Steel Pipe Dimensions
Schedule 10S stainless steel pipe dimensions are commonly used for stainless steel process piping where a lighter wall configuration is suitable for the design conditions. The “10S” designation identifies the stainless steel pipe schedule, while TP316L identifies the material grade.
For the featured product:
NPS 3 × Schedule 10S = 88.90 mm OD × 3.05 mm wall thickness
Actual dimensional tolerances should be verified against the applicable ASTM A312 and ASME dimensional requirements.
3 Inch 316L Schedule 10S Pipe for Petrochemical Applications
The 3 inch 316L Schedule 10S pipe is suitable for a range of petrochemical and chemical processing systems where corrosion resistance, dimensional consistency and reliable service performance are required. The seamless construction makes this pipe a suitable option for various process piping applications.
Typical applications include:
- Petrochemical processing
- Chemical processing
- Oil and gas facilities
- Refinery process piping
- Heat exchanger systems
- Fluid transfer lines
- Industrial process equipment
Available Sizes and Custom Options
In addition to the featured 3 inch 316L Schedule 10S pipe, TP316L seamless stainless steel pipes can be supplied in other nominal sizes and schedules according to project requirements. Customers can specify pipe size, wall thickness, length, end preparation, surface condition and inspection requirements.
Chemical Composition of TP316L Stainless Steel
Typical chemical composition requirements for ASTM A312 TP316L / UNS S31603 include:
| Element |
Typical Requirement, wt.% |
| Carbon (C) |
≤ 0.030 |
| Manganese (Mn) |
≤ 2.00 |
| Silicon (Si) |
≤ 1.00 |
| Phosphorus (P) |
≤ 0.045 |
| Sulfur (S) |
≤ 0.030 |
| Chromium (Cr) |
16.0–18.0 |
| Nickel (Ni) |
10.0–14.0 |
| Molybdenum (Mo) |
2.0–3.0 |
| Iron (Fe) |
Balance |
Mechanical Properties
Typical minimum mechanical requirements for TP316L stainless steel pipe include:
| Property |
ASTM A312 TP316L |
| Tensile Strength |
≥ 485 MPa |
| Yield Strength |
≥ 170 MPa |
| Elongation |
≥ 35% |
| Hardness |
As specified by ASTM A312 |
Schedule 10S Dimensions
Schedule 10S is a commonly specified stainless steel pipe wall designation under ASME B36.19M.
Typical nominal pipe sizes include:
| Nominal Size |
NPS |
Outside Diameter |
| 1/2" |
DN15 |
21.3 mm |
| 3/4" |
DN20 |
26.7 mm |
| 1" |
DN25 |
33.4 mm |
| 1-1/4" |
DN32 |
42.2 mm |
| 1-1/2" |
DN40 |
48.3 mm |
| 2" |
DN50 |
60.3 mm |
| 2-1/2" |
DN65 |
73.0 mm |
| 3" |
DN80 |
88.9 mm |
| 4" |
DN100 |
114.3 mm |
| 6" |
DN150 |
168.3 mm |
| 8" |
DN200 |
219.1 mm |
| 10" |
DN250 |
273.1 mm |
| 12" |
DN300 |
323.9 mm |
Why Choose TP316L for Petrochemical Applications?
Petrochemical facilities often handle hydrocarbons, process chemicals, corrosive fluids and elevated-temperature services. Material selection therefore needs to consider corrosion resistance, pressure, temperature, fluid composition and applicable piping codes.
316L stainless steel seamless pipe is frequently selected when improved corrosion resistance over 304 stainless steel is required.
Typical advantages include:
- Better chloride pitting resistance than 304 stainless steel
- Good resistance to many chemical environments
- Excellent weldability
- Good ductility and toughness
- Suitable for demanding industrial piping
- Low-carbon grade for welded fabrication
- Seamless construction for process piping applications
Petrochemical Applications
ASTM A312 TP316L Schedule 10S Stainless Steel Seamless Pipe can be used in a range of petrochemical and process-industrial applications, subject to engineering design and service conditions.
Typical applications include:
- Petrochemical process piping
- Chemical processing plants
- Oil and gas processing systems
- Refinery piping
- Hydrocarbon processing equipment
- Chemical transfer lines
- Process fluid piping
- Heat exchanger piping
- Condensate lines
- Utility piping
- Instrumentation and auxiliary piping
- Corrosive fluid transportation
- Offshore and marine process systems
TP316L vs TP304 Stainless Steel Pipe
| Property |
TP316L |
TP304 |
| Chromium |
16–18% |
18–20% |
| Nickel |
10–14% |
8–11% |
| Molybdenum |
2–3% |
Not intentionally added |
| Chloride Resistance |
Higher |
Moderate |
| Pitting Resistance |
Better |
Lower |
| Weldability |
Excellent |
Excellent |
| Chemical Processing |
Excellent |
Good |
| Petrochemical Applications |
Excellent |
Good |
| Relative Cost |
Higher |
Lower |
Why Buy TP316L Seamless Pipe from JUDE STEEL?
As a stainless steel and specialty metal supplier, JUDE STEEL can provide TP316L seamless stainless steel pipes for industrial and engineering applications.
Our advantages include:
- ASTM A312 TP316L material available
- Schedule 10S and other schedules available
- Seamless and welded stainless steel pipe options
- Multiple OD and wall thickness options
- Custom lengths available
- Material certificates available
- Chemical and mechanical test reports available
- Support for project-based purchasing
- Export packing for international orders
- Technical documentation available upon request
FAQ
Q1: What is ASTM A312 TP316L stainless steel pipe?
A: ASTM A312 TP316L is a low-carbon austenitic stainless steel pipe grade specified for seamless and welded pipe used in corrosive and high-temperature service. TP316L corresponds to UNS S31603.
Q2: What does Schedule 10S mean?
A: Schedule 10S is a stainless steel pipe wall designation generally associated with ASME B36.19M. The actual wall thickness depends on the nominal pipe size.
Q3: Is ASTM A312 TP316L Schedule 10S pipe seamless?
A: Yes. When specified as a seamless pipe, it is manufactured without a longitudinal weld seam. ASTM A312 also covers welded stainless steel pipe, so the manufacturing type should be clearly stated on the purchase order.
Q4: Is 316L better than 304 for petrochemical applications?
A: In many corrosive environments, 316L provides better resistance to pitting and crevice corrosion because it contains molybdenum. However, the appropriate grade should always be selected based on the actual process medium, temperature, chloride concentration and design conditions.
Q5: Can TP316L Schedule 10S pipe be welded?
A: Yes. TP316L has good weldability and is commonly welded using TIG, MIG and other suitable stainless steel welding processes. Welding procedures should follow the applicable project specifications and welding codes.
Q6: Can you provide an MTC for ASTM A312 TP316L pipe?
A: Yes. EN 10204 3.1 Mill Test Certificates can be provided when required, including chemical composition and mechanical test results for the supplied material.
Q7: What sizes of Schedule 10S TP316L seamless pipe are available?
A: We can supply a range of nominal pipe sizes according to ASME B36.19M Schedule 10S, with OD, wall thickness and length options depending on availability and project requirements.
Q8: What is the difference between Schedule 10 and Schedule 10S?
A: Schedule 10S is a stainless steel pipe designation used with ASME B36.19M, while Schedule 10 is generally associated with carbon and alloy steel dimensions under ASME B36.10M. For stainless steel piping, the applicable dimensional standard should be confirmed.