The 316Ti pipe differs from 316 or 316L as it contains titanium for stabilisation. Standard 316 has higher carbon content, and 316L has reduced carbon for improved resistance to intergranular corrosion after welding. This pipe prevents carbide precipitation due to the presence of titanium. This makes it less prone to intergranular corrosion post welding and provides improved strength in prolonged high-temperature conditions.
ASTM A312 Stainless Steel 316Ti Seamless Pipe Manufacturer
We, Xintongda Special Steel (XTD), are a reliable 316Ti stainless steel seamless pipe manufacturer in China and a global supplier. 316Ti stainless steel pipe is a titanium-stabilised version of 316 stainless steel. The small addition of titanium protects 316Ti from precipitation at high temperatures even with prolonged exposure. We manufacture this austenitic stainless steel pipe according to the ASTM A312, EN, JIS, and GB standards. This titanium-stabilised pipe is resistant to sensitisation at high temperatures (approximately 800°C / 1472°F), especially after welding. This makes it a more reliable and durable option than standard 316 or 316L grades in high-temperature applications. Our SS 316Ti is commonly used in heat exchangers, paper mill equipment, and coastal and marine environments. We have a huge inventory of these pipes in different sizes and have an annual supply capacity of 25,000 tons. We have multiple international certifications and can provide custom pipes to meet the needs of our clients.
We ensure our ASTM A312 TP316Ti pipe follows these specifications:
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Standard
ASTM A312
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OD Range
6-1016 mm
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Thickness
1-65 mm
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Length
≤ 18 m
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Technical Data
Technical Data
SS 316Ti Seamless Pipe Manufacturing Process
The manufacturing process of stainless steel 316Ti seamless pipe begins with a solid round billet. First, these billets are heated to a high temperature (1200°C). Next, a process called piercing uses a rotating mill to make a hollow shell. The hollow shell is then shaped and finished by rolling and drawing it several times until it is the right size, has the right wall thickness, and has a smooth, seamless surface. Finally, the pipe is solution-annealed at a minimum of 1040°C and rapidly quenched to restore corrosion resistance and activate the titanium stabilization. Read the full seamless pipe production process.
What are the Key Features of 316Ti Stainless Steel Pipe?
The 316Ti stainless steel pipe has 5 features. These include resistance to sensitisation, high-temperature performance, superior corrosion resistance, excellent weldability, and formability.
- Resistance to Sensitisation: When exposed to high temperatures, this pipe prevents chromium carbide formation at the grain boundaries. This is due to the addition of titanium (Ti ≥ 5×(C+N), max 0.70%) to the alloy, which makes the structure more stable by bonding with carbon more strongly.
- High-Temperature Performance: Even at high temperatures for long periods of time, the pipe maintains high strength and mechanical properties. The titanium addition prevents chromium carbide precipitation, which is why the pipe retains its strength and corrosion resistance under prolonged heat exposure.
- Superior Corrosion Resistance: The 316Ti SS pipe offers better corrosion resistance (compared to non-molybdenum stainless steels) to many corrosive agents, especially pitting and crevice corrosion in chloride environments. This is mainly due to the molybdenum content (2.00–3.00%), which strengthens the passive film and improves resistance to localized attack in chloride-containing environments.
- Excellent Weldability: The pipe is easily joined using common welding techniques without compromising its corrosion resistance properties afterward. The titanium stabilisation prevents intergranular corrosion in the heat-affected zone of the weld.
- Formability: 316Ti pipe can be readily shaped, bent and formed into various components without cracking. This is due to its austenitic microstructure which gives the steel excellent ductility.
ASTM A312 TP316Ti Stainless Steel Seamless Pipe Equivalent Material
ASTM A312 TP316Ti stainless steel seamless (SMLS) pipe is commonly also known as UNS S31635. Some global equivalents include Werkstoff Nr. 1.4571 and JIS SUS 316Ti.
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| 316Ti | S31635 | S31668 | 06Cr17Ni12Mo2Ti | SUS316Ti | X6CrNiMoTi17-12-2 | 1.4571 | 08X17H13M2T |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
316Ti Seamless Stainless Steel Pipe Industrial Applications
316Ti SS pipes are used in 7 major industrial applications. These include:
Chemical Processing
These pipes are used to move acids, solvents and other highly corrosive chemicals through process lines. The titanium stabilisation makes it less likely to corrode at high temperatures that are common in chemical plants.
Food and Beverage Industry
The 316Ti SS pipe moves products like dairy, juices, and brewing ingredients while maintaining sanitary conditions. Its smooth, non-porous surface is easy to clean. This prevents contamination and bacterial growth.
Petrochemical
This pipe is important in oil refineries and gas processing plants for handling hot, high-pressure fluids and gases. Its resistance to heat and sensitisation ensures structural integrity and leak prevention in critical systems.
Oil & Gas
SS 316Ti pipes are used for offshore platforms and refining & petrochemicals. It gives the necessary strength and better protection against corrosion caused by chloride in seawater.
Pharmaceutical
The pipe forms the piping systems for sterile solutions, high-purity water, and equipment used to make medications. It is preferred for its non-reactive surface, which is easy to clean and sanitise under strict quality control requirements.
Pulp and Paper Production
316Ti pipe transports different bleaching chemicals and slurries that are highly corrosive. It can handle the harsh chemicals and high temperatures that are common in paper mill processes.
Coastal and Marine Environments
The piping is used in shipbuilding, marine exhaust systems, and seawater intake applications. The increased resistance to pitting and crevice corrosion from chloride ions makes it well-suited for saltwater and coastal service.
Frequently Asked Questions
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How is 316Ti pipe different from 316 or 316L?
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What are the advantages of 316Ti pipes?The advantages of 316Ti pipe are superior heat resistance up to approximately 800°C and prevention of carbide precipitation in harsh environments. It has better creep strength and long-term stability than 316 or 316L.
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Is SS 316Ti seamless pipe generally stronger than welded pipe?Yes, seamless SS 316Ti pipe is usually stronger because of its uniform grain structure and the absence of weld seams, which can act as stress concentration points.