ASTM A312 TP304 Seamless Pipe & SS 304 Welded Pipe Supplier

Stainless steel grade 304 piping solution, commonly know as Stainless Steel 304 pipe is the highly favored stainless steel pipe product in all industries, commercial as well as architectural sectors. Due to its higher corrosion resistance, higher durability, better workability, greater economic cost, grade 304 stainless steel pipe finds their extensive applications in industries such as food processing, water treatment plant, chemicals, gas industry, oil & gas pipe, medical industry and building constructions.

 We as SS 304 Pipe Supplier for a decade provide a full range ofseamless, welded as well ERW Stainless Steel 304 pipes. Our Range includes:- ASTM A312 TP304 Seamless Pipe, ASME SA312 Grade 304 Welded Pipe, SS UNS S30400 ERW Pipe and Stainless Steel 304L Seamless pipe. Our pipes are available in different grades, sizes, schedules & finishes. Complete Traceability & Test Certificates provided along with all product supply.

What is Stainless Steel 304 Pipe?

 Stainless Steel 304 Pipe is a chromium nickel austenitic stainless steel pipe with nearly 18% chromium and 8% nickel. With this alloy blend, stainless steel 304pipe exhibits outstanding resistance to many different oxidative and chemical exposures and attacks while retain excellent work ability and strength properties. Being known as the default “stock stainless steel”, the Stainless Steel 304 is a work horse stainless steel with excellent capability and in a multitude of conditions. It provides excellent corrosion resistance properties in freshwater services, industrial atmosphere and many industrial substances and chemicals. Available in seamless, welded, fabricated, and ERW type pipe to comply with project needs for various pressure ratings, temperature ranges and services.

Stainless Steel 304 pipes

Our Product Range

1. ASTM A312 TP304 Seamless Pipe

Our ASTM A312 TP304 Seamless Pipe are precision-manufactured from high-grade 304 stainless steel, ensuring uniformity and strength in every length. These seamless pipes are ideal where structural integrity, temperature resistance, and corrosion performance are critical.

  • Conforms to ASTM A312 / ASME SA312 specifications

  • Excellent corrosion and heat resistance

  • Ideal for high-pressure and high-temperature applications

Also available in:

  • 304 SS seamless tube

  • Seamless 304 stainless steel tube

  • SS 304 seamless pipe

2. SS 304 Welded Pipe & ASME SA312 Grade 304 Welded Pipe

We produce SS 304 ERW Pipe and ASME SA312 Grade 304 Welded Pipe with precision welding techniques that ensure consistent quality and dimensional accuracy.

  • Manufactured as per ASTM A312 & ASME standards

  • Fine mechanical properties with smooth surface finish

  • Cost-effective alternative to seamless pipes where appropriate

Product variants include:

  • SS UNS S30400 ERW Pipe

  • SS 304 Erw Pipe

Properties of 304 Stainless Steel Pipe

304 stainless steel properties include:

  1. Corrosion Resistance: The high chromium content in SS 304 forms a passive layer of chromium oxide, which prevents corrosion and rust. This makes it suitable for use in environments exposed to moisture and chemicals.
  2. Durability: 304 stainless steel is known for its durability and strength. It can withstand extreme temperatures and harsh conditions without losing its structural integrity.
  3. Hygienic: Its smooth surface and non-porous nature make it easy to clean and sanitize, which is why it is extensively used in the food and beverage industry, as well as in medical equipment.
  4. Formability and Weldability: 304 stainless steel can be easily welded and formed into various shapes and sizes without compromising its properties.
  5. Aesthetic Appeal: It has a bright, attractive finish that enhances the visual appeal of products and structures made from it.

Benefits of Using 304 Stainless Steel Pipes

Using 304 stainless steel pipes offers numerous benefits:

  1. Longevity: Their resistance to corrosion and rust ensures a longer lifespan, reducing the need for frequent replacements.
  2. Cost-Effective: Although initially more expensive than other materials, the durability and low maintenance of 304 stainless steel pipes make them a cost-effective choice in the long run.
  3. Versatility: Their ability to withstand a wide range of temperatures and environmental conditions makes them suitable for various applications.
  4. Safety: 304 stainless steel pipes are safe for use in food and medical industries due to their hygienic properties.

Key Features of ASTM A312 TP304 Seamless Pipe

Excellent Corrosion Resistance

Performs exceptionally well in atmospheric, chemical, and mildly corrosive environments.

High Temperature Resistance

Maintains structural stability at elevated temperatures.

Superior Weldability

Can be easily welded using conventional welding techniques.

Hygienic Surface Finish

Ideal for food processing, beverage production, and pharmaceutical industries.

Long Service Life

Requires minimal maintenance and provides reliable performance for decades.

Cost-Effective Solution

Offers an excellent balance of performance and affordability.

Types of Stainless Steel 304 Pipes We Supply

ASTM A312 TP304 Seamless Pipe

Manufactured through extrusion and piercing processes, seamless pipes are ideal for high-temperature and high-pressure applications.

ASME SA312 Grade 304 Welded Pipe

Produced by forming and welding stainless steel strips or plates, welded pipes offer excellent dimensional accuracy and cost efficiency for general industrial use.

SS UNS S30400 ERW Pipe

Electric Resistance Welded pipes provide uniform wall thickness and reliable performance in low to medium-pressure systems.

Stainless Steel 304L Seamless Pipe and 304L SS Pipe

304L contains lower carbon content compared to standard 304 grade, minimizing carbide precipitation during welding and improving corrosion resistance in welded structures.

304 Stainless Steel Schedule 80 Pipe

Schedule 80 pipes feature thicker walls and enhanced pressure-handling capabilities, making them suitable for demanding industrial environments.

Duplex Stainless Steel 304 pipes
304 stainless steel round pipes

Schedule and Size Chart for Stainless Steel 304 Pipes

Nominal Pipe Size (NPS) Outside Diameter (OD) (inches) Schedule Wall Thickness (inches) Inner Diameter (ID) (inches)
1/8 0.405 10 0.049 0.307
1/4 0.540 10 0.065 0.410
3/8 0.675 10 0.065 0.545
1/2 0.840 10 0.083 0.674
3/4 1.050 10 0.083 0.884
1 1.315 10 0.109 1.097
1 1/4 1.660 10 0.109 1.442
1 1/2 1.900 10 0.109 1.682
2 2.375 10 0.109 2.157
2 1/2 2.875 10 0.120 2.635
3 3.500 10 0.120 3.260

Mechanical Properties Chart for Stainless Steel 304 Pipes

Property Value
Tensile Strength (MPa) 505
Yield Strength (MPa) 215
Elongation (%) 40
Hardness (Rockwell B) 82
Modulus of Elasticity 193 GPa
Density 8.0 g/cm³
Melting Point 1450°C
Thermal Conductivity 16.2 W/m·K at 100°C
Electrical Resistivity 0.072 x 10^-6 Ω·m at 20°C

Specifications Chart for Stainless Steel 304 Pipes

Specification Standard
ASTM ASTM A312
ASME ASME SA312
DIN 1.4301
JIS SUS 304
BS 304S31
UNS S30400
EN X5CrNi18-10

Chemical Composition Chart for Stainless Steel 304 Pipe

Element Composition (%)
Carbon (C) 0.08 max
Manganese (Mn) 2.00 max
Silicon (Si) 1.00 max
Phosphorus (P) 0.045 max
Sulfur (S) 0.030 max
Chromium (Cr) 18.00 – 20.00
Nickel (Ni) 8.00 – 10.50
Nitrogen (N) 0.10 max
Iron (Fe) Balance

Applications of Stainless Steel 304 Pipe

Because of its versatility, Stainless Steel 304 Pipe is used across numerous industries.

Chemical Processing Plants

Used for transporting chemicals, solvents, and process fluids.

Food and Beverage Industry

Preferred for hygienic piping systems and processing equipment.

Pharmaceutical Manufacturing

Suitable for sterile production environments.

Oil and Gas Industry

Used in utility lines, instrumentation systems, and process piping.

Water Treatment Plants

Provides corrosion-resistant solutions for water distribution systems.

Construction and Infrastructure

Used in structural applications, handrails, and architectural installations.

Power Generation

Suitable for boiler support systems and process fluid transportation.

Other Stainless Steel Pipe Grades :

Why Customers Choose Us for SS 304 Pipes

We supply high-quality stainless steel piping solutions to domestic and international markets while maintaining strict quality standards.

Our advantages include:

  • Extensive inventory availability
  • Competitive pricing
  • Mill-certified material
  • Global export capability
  • Customized lengths and specifications
  • Fast delivery schedules
  • Experienced technical support
  • International standard compliance

Whether you require ASTM A312 TP304 Seamless Pipe, SS 304 Welded Pipe, SS UNS S30400 ERW Pipe, or Stainless Steel 304L Seamless Pipe, we provide dependable solutions tailored to your project requirements.

Frequently Asked Questions

What is the difference between SS 304 and SS 304L Pipe?

SS 304L contains lower carbon content than SS 304, providing better corrosion resistance after welding and reducing the risk of carbide precipitation.

Is ASTM A312 TP304 Seamless Pipe suitable for high-pressure applications?

Yes. Due to the absence of a weld seam, ASTM A312 TP304 Seamless Pipe is widely used in high-pressure and critical service environments.

What industries commonly use SS 304 Pipes?

Food processing, pharmaceuticals, chemical processing, water treatment, construction, power generation, and oil & gas industries commonly use SS 304 pipes.

What certifications are supplied with the pipes?

Products can be supplied with Mill Test Certificates (MTC), EN 10204 3.1 certification, and third-party inspection reports as required.

Is 304 stainless steel schedule 80 pipe available?

Yes. Schedule 80 pipes are available in various diameters and wall thicknesses for high-pressure industrial applications.

Global Reach

Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality stainless steel 304 pipes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

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Countries We Export To

UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

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