ASTM A312 TP316L Stainless steel seamlesstubes for fluid transport

GNEE supplies ASTM A312 TP316L seamless ss tube for fluid conveyance. Our ASTM A312 TP316L ss tubes are manufactured via the seamless process, featuring uniform and dense tube walls free of weak weld seams, and capable of withstanding high pressure of ≥15 MPa. In addition, this material delivers excellent intergranular corrosion resistance with no need for post-weld sensitization treatment, enabling stable conveyance of diverse corrosive media and high-purity fluids. In seawater environments, its service life is 8 to 10 times that of ordinary carbon steel pipes.

ASTM A312 TP316L industrial ss tubes are low-carbon austenitic ss (carbon content ≤0.035%), with chemical composition comprising 10.0%–14.0% nickel and 2.00%–3.00% molybdenum. All pipes undergo solution annealing at 1050°C followed by water quenching to eliminate residual processing stress. The pipes achieve tensile strength ≥485 MPa, yield strength ≥170 MPa and elongation ≥35%. They operate reliably across a wide temperature range from -196°C to 650°C, exhibit outstanding chloride corrosion resistance, and boast a critical pitting temperature roughly 20°C higher than that of 304 ss.

Every piece of 316L ss tube is delivered accompanied by a Material Test Certificate (MTC), as well as inspection reports issued by third-party organizations including TÜV and SGS..

This is the material certificate for the 316L ss round tubes we previously exported; please verify the Mo content.

 

 

 As a professional supplier, Our product specifications cover outer diameters ranging from 1/8 inch (3.18 mm) to 24 inches (609.6 mm), with wall thickness grades including SCH 5S, SCH 80S and XXS. Available length options consist of single random lengths of 15–24 feet, double random lengths of 35–42 feet, or custom cut lengths tailored to client requirements. Surface treatment processes offered include pickling and passivation, bright annealing and mechanical polishing.

Contact now

ASTM A312 TP316L SS tube Specification

Chemical Element of SS 316L Seamless Tube

Grade	316L
	min	max
C	–	0.08
Mn	–	2.0
Si	–	0.75
P	–	0.045
S	–	0.03
Cr	16.0	18.0
Mo	2.0	3.0
Ni	10.0	14.0
N	–	0.10

 

Mechanical Properties of SS UNS S31600 Round tube

Grade		316
Tensile Strength (MPa) min		515
Yield Strength 0.2% Proof (MPa) min		205
Elongation (% in 50mm) min		40
Hardness	Rockwell B (HR B) max	95
	Rockwell B (HR B) max	217

 

Equivalent Grades of SS 316L tub

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
316L	1.4404 / 1.4435	S31603	SUS316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17-11-02 / Z3CND18-14-03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3

 

Value Added Service of ASTM A312 TP316L tube 

Polishing	GNEE can polish nearly all types of ss pipes to finish grades No.4, No.6, No.7 or No.8 mirror effect. The polished stainless steel pipes can also be cut to required dimensions on request.
Beveling	GNEE can perform chamfering treatment on ss pipes to facilitate welding and other machining processes.
Honing/Turning	GNEE can hone pipe and tube, using a precision abrasion process in order to obtain a desired finish or close dimensional tolerance.

 

Common Applications of ASTM A312 TP316L SS tube

Chemical pipelines ,Pharmaceutical equipment ,Medical equipment ,Chemical processing equipment , Structural steel and components for marine environments.

Heat exchange pipelines for desalination plant

 piping for compact desalination equipment

For ASTM A312 TP316L cold drawn pipe prices, quick creep test reports or free samples, please click the button below to contact our technical communication team!

best price ASTM A312 TP316L pipe

Quality Control

Chemical Composition Testing：Verify qualified element content, eliminate material counterfeiting, and ensure corrosion resistance, high-temperature performance and mechanical properties meet relevant standards.

Outer Diameter & Wall Thickness Testing：Control dimensional tolerances, guarantee pressure-bearing capacity and satisfy installation and connection requirements.

Hydrostatic Test: ASTM A312 mandates that every pipe undergo a hydrostatic test (unless eddy current or ultrasonic testing is performed).
Eddy Current Test (ECT): Rapidly detects cracks and voids on the pipe wall surface.
Ultrasonic Test (UT): Detects deep-seated defects within the pipe wall (such as slag inclusions and laminations).

 

 In addition, we also support other inspections such as roughness testing as required by clients.

Click the button below to access full product inspection information rapidly

Click the button

Premium Packaging

To adapt to complex working conditions of multiple loading/unloading operations during transoceanic shipping, our ss tube adopt full seaworthy packaging solutions:

1. Multi-layer anti-rust and moisture-proof packaging prevents rusting and deformation during long-distance ocean transportation.

2. Dedicated end protection for pipes, reinforced wooden crates for collision resistance, complete labels for traceable management.

3. Custom neutral packaging and exclusive shipping marks are available to meet diverse export demands.

GNEE has supplied ASTM A312 TP316L pipes for the seawater desalination project in the UAE and the offshore platform project in Colombia. With strict quality control and seaworthy packaging adopted, the products adapt well to high-chloride corrosive and high-pressure working conditions, helping secure long-term repeat purchase partnerships on multiple occasions.

Case 1: UAE Seawater Desalination Heat Exchange Project

Order Details: UNS S31603 (TP316L) seamless pipes, specification 19×2×8000mm, manufactured in accordance with ASTM A312 standard with solution annealing and pickled surface treatment

Application Scenario: Condenser piping for seawater desalination units. Exposed to high-chloride seawater for long-term service, the pipes are required to deliver excellent pitting corrosion resistance and stress corrosion cracking resistance

Project Outcome: The equipment operates steadily on site, and the client placed an additional annual long-term bulk supply order

Case 2: Colombia Offshore Platform Project

Order Details: 16 tons of TP316L pipes processed with pickling and annealing techniques

Application Scenario: Structural supports and seawater treatment pipelines for offshore platforms, enduring long-term exposure to marine salt spray environments

Project Outcome: The pipes deliver outstanding chloride corrosion resistance, and the client placed follow-up purchase orders for South American regions.

1.What is the difference between Tp316 and TP316L pipes?

The key difference between 316 and 316L ss is the carbon content. While 316 has a maximum carbon content of 0.08%, 316L has a maximum carbon content of only 0.03%.

2.Why is 316 stainless not magnetic?

316 ss pipe is austenitic; when they cool, the iron remains in the form of austenite (gamma iron), a phase of iron which is nonmagnetic.

3.Should I use 304 or 316 ss pipe?

Use 304 stainless steel for standard indoor, kitchen, or low-cost projects. Use 316 stainless steel if your project faces saltwater, coastal air, harsh chemicals, or high heat, because 316 contains molybdenum which stops pitting rust.

4.What is A312 TP316L material?

The A312 type TP316L belongs to a low-carbon austenitic grade of stainless steel. The A312 TP316L is produced with a superior composition of nickel, chromium, and molybdenum, allowing them to be used across different industries.

Hot Tags: ASTM A312 TP316L Stainless steel seamlesstubes for fluid transport, China ASTM A312 TP316L Stainless steel seamlesstubes for fluid transport manufacturers, suppliers, factory, stainless steel seamless pipe for general industrial use, ASTM A312 TP321 High Pressure Stainless Steel Tubing, seamless stainless steel pipe hardness testing, ASTM A312 TP347 Seamless Steel Pipe, ASTM A312 TP316 Seamless Industrial Steel Pipe, 316 316L Stainless Steel Capillary Pipe