SS 316L Seamless Tubes Manufacturer and Supplier in Thailand

Q: What is the grade of 316L tube?

The grade of 316L tube is austenitic stainless steel, which is a low-carbon version of grade 316. It is commonly identified by the designations UNS S31603 or EN 1.4404 and is known for its excellent corrosion resistance, weldability, and suitability for hygienic and high-purity applications.

Q: Will 316L stainless steel tube rust?

No, 316L stainless steel tube is highly resistant to rust because its chromium content forms a protective passive oxide layer. However, it can rust (corrode) under extreme conditions, like prolonged exposure to high-chloride environments or strong acids, which can break down this protective layer.

Stainless Steel 316L Seamless Tubes are precision-engineered from high-quality austenitic stainless steel, offering superior corrosion resistance, durability, and strength for demanding environments. Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd., based in Chon Buri, produces stainless steel tubes in various sizes and grades, offering custom cut-to-length and bulk supply for diverse industrial needs. Manufactured to international standards, our 316L seamless tubes are ideal for petrochemical, marine, and pharmaceutical applications, ensuring reliability under high temperatures and pressure. With years of expertise in pipe manufacturing, Thaida combines advanced production techniques with strict quality control to deliver high-performance tubing solutions built for longevity and efficiency

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Understanding 316L Seamless Stainless Steel Tubes

316L stainless steel is a low-carbon version of 316, offering enhanced corrosion resistance, particularly in chloride-rich and acidic environments. Its low carbon content helps prevent carbide precipitation during welding. SS 316L Seamless Tubing is manufactured without any welded joints, resulting in greater strength, a smooth internal surface and improved resistance to pressure and corrosion. The seamless structure also ensures uniformity throughout the UNS S31603 tube. These tubes are often cold drawn to achieve precise dimensions and smooth finishes. Stainless Steel 316L Cold Drawn Tubes meet global quality benchmarks and are widely recognized for their reliability. ASTM A213 TP 316L SS Seamless Tubes ensure consistency in mechanical properties, chemical composition and performance across demanding industrial applications.

Key Benefits of Stainless Steel 316L Seamless Tubes

SS 316L seamless tubes offer exceptional benefits and meet stringent industry needs. Following are the benefits of these tubes:

Manufactured to ASTM A312 TP316L tubes dimensions, ensuring consistency, accuracy and compliance with international benchmarks.

The excellent corrosion resistance of 316L reduces the need for frequent replacements or costly upkeep.

Superior material quality and seamless construction ensure long service life, even in demanding environments.

Seamless design enhances structural strength, eliminates weak points and improves resistance to cracking or failure.

316L stainless steel tube is ideal for high temperature applications, maintaining performance under thermal stress.

Available in a range of SS 316L seamless tubes sizes to suit diverse project and system requirements.

The low carbon content minimizes carbide precipitation, especially during welding, ensuring excellent corrosion resistance.

Why Choose Thaida for 316L Seamless Stainless Steel Tubing?

Thaida is a trusted stainless steel tubes supplier and manufacturer of export-quality 316L seamless stainless steel tubing. With a skilled workforce and strong technical support, we ensure on-time delivery, corrosion-resistant products and competitive rates. Our tubes are manufactured with precision and meet ASTM/ASME standards, making them a smart and reliable choice.

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Specification of Stainless Steel 316L Seamless Tubes

Below are the key specifications covering size range, dimensions, schedules and other details for SS 316L seamless tubes.

Specifications	ASTM A213 / ASTM SA213
Tube Range	6.35 mm OD to 101.6 mm OD Gauge: 25 SWG - 10 SWG
Outer Diameter	3.00 mm - 219.10 mm
Wall Thickness	0.40 mm - 12.70 mm
Schedules	5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH
Length	Up to 30 meters, Custom Cut Lengths
Types	Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Tubes

ASTM A213 SS 316L Seamless Tubes Chemical Composition

The table below outlines the standard chemical composition of 316L stainless steel as per ASTM A213 specifications.

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Other
316L	≤0.035	≤2.00	≤1.00	≤0.045	≤0.03	16.00-18.00	2.00-3.00	10.00-14.00	–

316L Stainless Steel Seamless Tubes Physical Properties

Here are the important physical properties of 316L seamless tubes, including density, melting point and thermal conductivity.

Grade	Density (kg/m³)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/°C)			Thermal Conductivity (W/m·K)		Specific Heat 0–100°C (J/kg·K)	Electrical Resistivity (n·m)
Grade	Density (kg/m³)	Elastic Modulus (GPa)	0–100°C	0–315°C	0–538°C	at 100°C	at 500°C	Specific Heat 0–100°C (J/kg·K)	Electrical Resistivity (n·m)
316L	8000	193	15.9	16.2	17.5	16.3	21.5	500	740

Stainless Steel 316L Seamless Tubes Mechanical Properties

The table below shows the mechanical properties such as tensile strength, yield strength and elongation for SS 316L tubes.

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness	Rockwell B (HR B) max	Brinell (HB) max
316L	485	170	40		95	217

Stainless Steel 316L Seamless Tubes Manufacturing Process

There are 5 steps involved in the stainless steel 316L seamless tube manufacturing process, which are given below. We follow a professional and precise manufacturing process to deliver high-quality products.

1. Raw Material Selection
High-quality stainless steel billets and strips are carefully selected for superior strength and corrosion resistance.

2. Tubes Formation
The selected raw material is formed into tubes using seamless extrusion methods, depending on the application.

3. Heat Treatment
Tubes undergo required controlled heat treatment to enhance mechanical properties and relieve internal stresses.

4. Cold Working and Finishing
After heat treatment, tubes are cold-worked for better surface finish, dimensional accuracy and improved strength.

5. Quality Control and Testing
Every tube is thoroughly inspected and tested to ensure it meets international quality standards for performance and reliability.

Applications of Stainless Steel 316L Seamless Tubes

Stainless Steel 316L seamless tubes are most widely used in the chemical and petrochemical industry for transporting corrosive fluids like acids, chlorides, and solvents in pipelines, heat exchangers, and reactors. They are also essential in oil & gas for offshore platforms and refineries due to their resistance to seawater and sour gas corrosion. In pharmaceutical and food processing, these tubes ensure hygienic, contamination-free fluid transfer, while in marine applications, they handle seawater cooling systems and desalination plants. Their high corrosion resistance and strength make them ideal for harsh environments.

Oil and Gas Industry

Chemical and Petrochemical Industry

Food and Beverage Industry

Pharmaceutical & Biotechnology

Aerospace & Defense

Power Generation & Heat Exchange

Construction and Architecture

Marine & Shipbuilding

Automotive and Transportation

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FAQ's

What is 316L stainless steel tube good for?

316L stainless steel tube is widely used in industries that demand high corrosion resistance and reliable weldability, such as pharmaceuticals, food processing, chemicals, marine, medical, and architecture. Its low carbon content minimizes the risk of intergranular corrosion after welding, ensuring durability and hygiene in cleanroom systems, chemical pipelines, and marine structures. The grade is also preferred for surgical implants, bioprocessing lines, and architectural applications where strength, longevity, and a clean appearance are essential.

What is the grade of 316L tube?

The grade of 316L tube is austenitic stainless steel, which is a low-carbon version of grade 316. It is commonly identified by the designations UNS S31603 or EN 1.4404 and is known for its excellent corrosion resistance, weldability, and suitability for hygienic and high-purity applications.

Will 316L stainless steel tube rust?

No, 316L stainless steel tube is highly resistant to rust because its chromium content forms a protective passive oxide layer. However, it can rust (corrode) under extreme conditions, like prolonged exposure to high-chloride environments or strong acids, which can break down this protective layer.

What are the benefits of 316L steel tube?

316L stainless steel tubes provide excellent corrosion resistance, especially in acidic and chloride-rich environments, due to its molybdenum content. The low carbon level enhances weldability by preventing intergranular corrosion, while its strength, heat resistance, and easy formability make it ideal for demanding conditions. These qualities, along with their hygienic surface, make 316L tubes well-suited for use in food processing, pharmaceutical, and chemical industries.