304 SS Seamless Pipes Manufacturer and Supplier in Thailand

Stainless steel 304 seamless pipe is a cylindrical product made from grade 304 stainless steel without any welded joints, offering a smooth, uniform structure, known for their excellent strength, corrosion resistance, and long-lasting performance, making them a reliable choice for applications in industries such as chemical processing, oil & gas, construction, and food manufacturing. At Thaida, a trusted manufacturer based in Chon Buri, Thailand, we specialize in producing high-quality 304 stainless steel seamless pipes that meet international standards such as ASTM and ASME. With a strong focus on precision engineering and strict quality control, we offer a wide range of pipe sizes and thicknesses to suit diverse industrial needs. Our products are designed to deliver dependable performance and durability, backed by certifications and factory-direct pricing, ensuring value and trust with every order.

Product Overview Stainless Steel 304 Seamless Pipes

Stainless steel 304 seamless pipes are renowned for their exceptional strength, corrosion resistance, and durability, making them a go-to choice for various industrial applications. With their superior corrosion resistance, particularly in harsh environments, stainless steel 1.4306 pipes are ideal for industries like chemical, food processing, and petrochemical, where reliability and long service life are critical. The ASTM A312 TP 304 ss seamless pipe meets global standards, including ASTM A312 and SA 312 TP 304 certifications, ensuring that it adheres to the highest quality benchmarks for industrial reliability. Additionally, they are made from eco-friendly, 100% recyclable materials, contributing to sustainable manufacturing practices. UNS S30400 seamless stainless steel pipe offers a versatile solution for a wide range of applications. Also, stainless steel 1.4306 Pipes are trusted for their superior mechanical properties, making it an essential material in industries requiring high-performance solutions.

304-pipe

What is A312 TP304 Seamless Pipes Material?

A312 TP304 pipe material is a specification for seamless, welded, and heavily cold worked austenitic stainless steel pipes made from 304 grade stainless steel. It offers excellent corrosion resistance, good strength, and outstanding formability, making it suitable for both high-temperature and general industrial applications.

Key Benefits of Stainless Steel TP 304 Seamless Pipes

The benefits of Stainless Steel TP 304 Seamless Pipes, including corrosion resistance, strength, and hygienic properties
Corrosion Resistance

Durability

SCH40 seamless stainless steel pipe DIN 1.4301 offers exceptional durability, delivering long-lasting performance even in the most demanding environments and resisting wear and tear over time.

Hygienic Properties

Corrosion Resistance

Stainless steel UNS S30409 provides outstanding protection against rust, oxidation, and chemical exposure, ensuring minimal maintenance and extended service life.

Durability and Strength

Pressure Resistance

These pipe is engineered to withstand high-pressure environments without losing structural integrity, making it ideal for industrial piping systems.

Environmental Sustainability

Strength

With high tensile strength, SCH40 seamless stainless steel pipe DIN 1.4301 is well-suited for heavy-duty applications, offering dependable performance under mechanical and thermal stress.

Low Maintenance

Flexibility

It can be easily fabricated and customized to meet specific project requirements, ensuring versatility across a wide range of industries.

Versatility

Leak-proof

Designed without welded joints, ASTM A312 TP304 seamless pipe provides a smooth, leak-free solution, guaranteeing higher safety and efficiency in fluid transport systems.

Why Choose Thaida for Your 304 Seamless Pipes Needs?

Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd. takes pride in being a trusted partner for all your 304 seamless pipe needs. We offer a wide range of thicknesses, diameters, and finishes to meet every customer’s requirements with precision and care. Our commitment to client satisfaction drives us to deliver high-quality pipe, prompt service, and customized solutions that exceed expectations. With a strong focus on quality and continuous global market expansion, we ensure that our ASTM A312 TP304 seamless pipes meet the highest industry standards, supporting industries worldwide with reliable and durable piping solutions.

Competitive Pricing

Competitive Pricing

Global Exports Expertise

Global Exports Expertise

Large Inventory & Fast Dispatch

Large Inventory & Fast Dispatch

Custom Sizes & Finishes

Custom Sizes & Finishes

Industry Certifications & Compliance

Industry Certifications & Compliance

Long service life in harsh conditions

Advanced Production Technology

After-Sales Support, Service- Technical Support

After-Sales Support, Service- Technical Support

In-House Testing & Full Traceability

In-House Testing & Full Traceability

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Specification of Stainless Steel 304 Seamless Pipes

The essential specifications for stainless steel 304 seamless pipes include standards, thickness range, outer diameter, and available forms.

ASTM / ASME Name ASTM A 312 ASME SA 312
Dimensions Standard ASTM, ASME and API
Stainless Steel 304 Seamless Pipes Size Range 0.5″ NB – 16″ NB
OD Sizes 0.5″NB TO 30″NB IN
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Frequently Used Type Seamless/ Fabricated
Stainless Steel 304 Seamless Pipes Stock Length Single Random, Double Random & Cut Length
Stainless Steel 304 Seamless Pipes End Finishing Plain End, Beveled End, Treaded End

Chemical Composition Of ASTM A312 TP304 Seamless Pipes

The chemical composition consists of key elements like chromium, nickel, molybdenum, carbon, manganese, and silicon.

Grade C Si Mn Cr Ni S P
304 ≤ 0.08 ≤ 1.00 ≤ 2.00 18.00 – 20.00 8.00 – 11.00 ≤ 0.03 ≤ 0.045

Mechanical properties such as tensile strength, yield strength, elongation, and hardness are provided for a clear understanding.

Grade Density Melting Point Tensile Strength Yield Strength (0.2% Offset) Elongation
SS 304 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Physical properties like density, specific heat, thermal conductivity, and electrical resistivity are given to help make informed choices.

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-1000°C (J/kg.K) Electrical Resistivity (n.m)
0-1000°C 0-3150°C 0-5380°C at 1000°C at 5000°C
304 8000 193 17.2 17.8 18.4 16.2 21.5 500 720

The surface finish of Stainless Steel 304 seamless pipes refers to the texture and smoothness of the pipe’s exterior, impacting its appearance and corrosion resistance.

Surface Finish Internal Surface (ID) External Surface (OD)
Roughness Average (RA) Roughness Average (RA)
μ inch μm μ inch μm
AP Annealed & Pickled Not defined Not defined 40 or Not defined 1.0 or Not defined
BA Bright Annealed 40, 32, 25, 20 1.0, 0.8, 0.6, 0.5 32 0.8
MP Mechanical Polish 40, 32, 25, 20 1.0, 0.8, 0.6, 0.5 32 0.8
EP Electro Polish 15, 10, 7, 5 0.38, 0.25, 0.20, 0.13 32 0.8

Manufacturing Process of Stainless Steel 304 Seamless Pipes

The manufacturing of Stainless steel 304 seamless pipes follows a five-step process, ensuring compliance with industry standards.

Stainless Steel Seamless Pipes Manufacturing Process

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

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

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

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

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

Applications of Stainless Steel 304 Seamless Pipes

Stainless steel 304 seamless pipes are widely used in the food and beverage industry for processing lines, dairy equipment, and kitchen applications due to their excellent hygiene, corrosion resistance, and ease of cleaning. In addition to food processing, 304 seamless pipes are commonly used in chemical and pharmaceutical industries for handling mild chemicals and non-corrosive fluids.

Oil and Gas Industry

Chemical and Petrochemical Industry

Food and Beverage Industry

Pharmaceutical & Biotechnology

Aerospace & Defense

Automotive and Transportation

Construction and Architecture

Marine & Shipbuilding

Power Generation & Heat Exchange

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FAQ's

What industries commonly use 304 stainless steel seamless pipes?

Food and beverage, chemical and pharmaceutical, oil and gas, and construction industries typically use 304 stainless steel seamless pipes because of their durability, hygienic properties and corrosion resistance.

Yes, 304 stainless steel seamless pipes can handle high temperatures up to 650°C for extended periods of time and even higher temperatures for shorter durations because of its excellent heat resistance. This makes it suitable for applications like power generation, furnaces, heat exchangers, and chemical processing.

Yes, we provide customization options for 304 stainless steel seamless pipes to meet your specific project requirements.

The maximum pressure rating of a 304 stainless steel seamless pipe depends on the pipe dimensions, like pipe size and wall thickness (schedule). For example, a 1-inch schedule 80 pipe has a pressure rating of 2841 psig at room temperature, while a 1-inch schedule 160 pipe has a rating of 4170 psig. High-pressure tubing can achieve ratings over 10,000 psig.

Stainless steel 304 seamless pipe specifications include a minimum tensile strength of 515 MPa, a minimum yield strength of 205 MPa, a density of 8000 kg/m3 and sizes and diameters that meet your specific project requirements. 

A 304 pipe grade is an austenitic stainless steel known for its excellent corrosion resistance, high tensile strength, and versatility in multiple applications. It is also referred to as 18/8 because of the presence of 18% chromium and 8% carbon. 

No, SS 304 is not entirely rust-proof, but it is highly rust-resistant. A chromium oxide layer that forms on its surface when exposed to oxygen protects it from rust. However, strong acids or caustic agents can damage this protective layer. 

304 steel offers excellent corrosion resistance, high-temperature performance, and formability, making it suitable for many applications from food processing and architecture to automotive and construction. It is also durable, easy to clean, has a high-quality aesthetic, and is cost-effective due to its long service life. 

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