ASTM A312 TP316L Stainless Steel Seamless Pipe

As a trusted supplier certified under ISO 9001, PED, and NACE MR0175, GNEE maintains a standing inventory of 200 tons to meet urgent order requirements. For in-stock items, we guarantee shipment within 3 to 7 business days and welcome third-party inspections (SGS, BV, TUV).

ASTM A312 TP316L seamless ss pipe is the low-carbon variant of Grade 316 stainless steel. The TP316L seamless tube we supply feature a maximum carbon content of merely 0.03% and molybdenum content ranging from 2% to 3%, which markedly elevates the pipe's resistance to chloride-induced pitting and crevice corrosion.

Our TP316L tubes are manufactured using a seamless process, ensuring uniform structural strength, leak-proof integrity, and an exceptional surface finish. This makes them ideally suited for critical piping systems where welding defects or corrosion risks must be absolutely eliminated. All TP316L pipes undergo solution annealing at temperatures ranging from 1050°C to 1150°C, followed by rapid quenching. This process ensures a stable hardness level consistently maintained at ≤HB 217and enables the material to successfully pass intergranular corrosion tests, thereby effectively eliminating the risks of cracking and corrosion associated with incomplete annealing.

 A312 TP316L annealed pipe

A312 TP316L  Seamless tube

In highly corrosive environments such as those found in chemical processing and marine engineering TP316L seamless tubes offer a service life that is three to five times longer than that of standard piping materials. They maintain reliable performance across a wide temperature range, spanning from -196°C to 650°C. Furthermore, these pipes can be further processed via cold drawing or hot rolling into various specifications and can be high-quality welded using ER316L filler wire.

Attached are the material certificate and PMI test results for our previous export shipment of 316L material to Europe; please check the Mo content.

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Chemical Composition Of ASTM A312 TP316L Tube

Mechanical Properties Of ASTM A312 TP316L pipe

316L SS tube Temperature Rating

Dimensions & Tolerances Of ASTM A312 TP316L pipe

*t: nominal wall thickness; d: ordered outside diameter.

aSTM A312 TP316L tube Standard

TP316L tube Weight Chart

Applications of TP316L SS Tube

 

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Client Cases

We have accumulated abundant practical project experience in highly corrosive sectors including chemical processing, pharmaceutical sanitation and seawater desalination, earning long-term recognition and ongoing cooperation from global clients.

 

1.Chonburi, Thailand Industrial Pipeline Renovation

GNEE delivered 22 tons of ASTM A312 TP316L seamless pipes in 10 days for urgent plant maintenance. Strict composition control (C≤0.03%, Mo:2.0%-3.0%) delivers reliable post-weld corrosion resistance, helping the client resume production quickly and trigger repeat orders.

2.Indian Pharmaceutical Fluid Transfer Project

We supplied BA-finished TP316L pipes for sterile pharmaceutical production lines. Smooth inner surfaces avoid residue buildup, low-carbon design removes extra post-weld annealing work, meeting strict sanitary piping demands.

ASTM A312 TP316L SS Factory

ASTM A312 TP316L Seamless Pipe

Quality Inspection

GNEE implements full-process quality control for stainless steel pipes, enforcing strict checks from incoming raw material inspection to finished product delivery. The alloy composition of raw materials is verified via PMI spectral analysis. Finished pipes undergo dimensional tolerance inspection , hydrostatic testing, tensile mechanical property testing and surface defect examination to guarantee full traceability across the entire production process.

Outer diameter measurement

 composition testing

wall thickness measurement

 To learn more about our quality control process, please click the link below to view our product inspection videos, testing procedures, and inspection reports.

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Export-grade packaging

Each pipe end is fitted with a plastic cap, and the pipes are enclosed in thickened packaging to prevent corrosion from seawater salt spray and mechanical damage during sea transport. They are further secured with steel strapping. The outer layer is protected by wooden pallets or crates to ensure safety throughout the international shipping process.

Moisture-proof packaging

fixed wooden crate packaging

1.What is ASTM A312  TP316L material?

ASTM A312 TP 316L Stainless Steel Pipes and Tubes is the low carbon version of 316 stainless. With the addition of molybdenum, the steel is popular for use in severe corrosion environments due to the materials immunity from boundary carbide precipitation (sensitisation).

2.Will a magnet stick to 316L stainless steel?

With its higher nickel composition range, 316 is considered the "most nonmagnetic" stainless steel. However, an item of 316 stainless steel which has significant welding or machining may be sufficiently magnetic to produce a noticeable attraction when brought near a magnet

3.Differences between  A312 TP316L and Grade 316 Stainless Steel Pipes?

TP316 has a maximum carbon content of 0.08%, while the low-carbon TP316L features a carbon cap of 0.03%. Standard 316 is susceptible to intergranular corrosion after welding; TP316L delivers stronger intergranular corrosion resistance upon welding and requires no additional solution annealing treatment.

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