304 Stainless Steel Pipes Supplier and Exporter | UNS S30400, EN 1.4301 & SUS 304 | Leoscor Alloy Pipes
Leoscor Alloy Pipes is a trusted manufacturer, stockist, supplier, and exporter of high-quality 304 Stainless Steel Pipes designed for industrial piping, process systems, fabrication, water handling, food processing, chemical processing, and general engineering applications.
SS 304 Pipes are austenitic stainless steel pipes known for excellent corrosion resistance, good weldability, superior formability, and reliable mechanical properties. The balanced chromium and nickel composition provides resistance against oxidation and general corrosive environments, making them suitable for a wide range of industrial applications.
Leoscor Alloy Pipes supplies Stainless Steel 304 Pipes in seamless, welded, ERW, fabricated, and LSAW types. These pipes are available in different sizes, schedules, wall thicknesses, lengths, shapes, and end finishes according to project and customer requirements.
304 Stainless Steel Pipes are austenitic stainless steel pipes manufactured using chromium and nickel alloy composition. These pipes are widely used because of their excellent corrosion resistance, durability, ease of fabrication, and suitability for both indoor and outdoor applications.
The grade 304 stainless steel contains approximately 18% chromium and 8% nickel, which provides improved resistance against rust and oxidation compared with standard carbon steel materials.
The material is commonly identified by different international designations including AISI 304 Stainless Steel Pipes, UNS S30400 Pipes, EN 1.4301 Pipes, X5CrNi18-10 Pipes, and JIS SUS 304 Pipes.

Equivalent Names of 304 Stainless Steel Pipes
| Equivalent Name | Standard / Country | Explanation |
|---|---|---|
| 304 Stainless Steel Pipes | Commercial Grade | Common designation for austenitic stainless steel grade 304. |
| UNS S30400 Pipes | USA (Unified Numbering System) | Material designation for stainless steel 304. |
| EN 1.4301 Pipes | Europe | European material number for stainless steel grade 304. |
| X5CrNi18-10 Pipes | European Chemical Designation | EN chemical composition designation for grade 304. |
| JIS SUS 304 Pipes | Japan | Japanese standard designation for stainless steel 304. |
304 stainless steel pipe is made from an austenitic chromium-nickel stainless steel. The grade contains 18.0 to 20.0 percent chromium and 8.0 to 10.5 percent nickel according to the composition values listed below.
This combination gives the material useful corrosion resistance along with good forming and welding characteristics.
SS 304 pipes are commonly selected where carbon steel would require greater corrosion protection and where the process does not require the higher chloride resistance associated with grades such as 316.
For engineering selection, the fluid, operating temperature, pressure, chloride level, fabrication method and applicable piping code should always be considered before the final material is approved.
Key Features of SS 304 Pipes
- Excellent corrosion resistance
- Good weldability
- Superior formability
- High durability
- Good oxidation resistance
- Easy fabrication and machining
- Smooth surface finish
- Suitable for general industrial applications
SS 304 Pipe Specifications
| Specification | Available Details |
|---|---|
| Specifications | ASTM A312 / ASME SA312, ASTM A358 / ASME SA358 |
| Dimensions | ASTM, ASME and API |
| SS 304 Pipes | 1/2 inch NB to 16 inch NB |
| ERW 304 Pipes | 1/2 inch NB to 24 inch NB |
| EFW 304 Pipes | 6 inch NB to 100 inch NB |
| Size | 1/8 inch NB to 30 inch NB |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless, ERW, Welded, Fabricated, LSAW Pipes |
| Form | Round Pipes, Custom Pipes, Square Pipes, Rectangular Pipes, U Shape, Hydraulic Pipes |
| Length | Single Random, Double Random and Cut Length |
| End | Plain End, Beveled End, Threaded |
For an accurate quotation, the enquiry should identify the exact size and schedule rather than specifying only the nominal diameter.
304 SS Pipes - Industries & Applications
Our pipes and tubes are used in a wide range of applications and various industries. Below are a few of them:
- Gas Processing Industries
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Chemical Industries
- Oil & Gas Industries
- Fertilizers Industries
- Sugar Industries
Get Quote for Your Requirement
Contact Leoscor Alloys Pipes for high quality industrial pipes and tubes. Mail- info@leoscoralloypipes.com
304 Stainless Steel Pipe Chemical Composition
The chemical composition currently specified for Leoscor Alloy Pipes Grade 304 material is shown below.
| Element | Minimum % | Maximum % |
|---|---|---|
| Carbon, C | – | 0.08 |
| Manganese, Mn | – | 2.0 |
| Silicon, Si | – | 0.75 |
| Phosphorus, P | – | 0.045 |
| Sulfur, S | – | 0.030 |
| Chromium, Cr | 18.0 | 20.0 |
| Molybdenum, Mo | – | – |
| Nickel, Ni | 8.0 | 10.5 |
| Nitrogen, N | – | 0.10 |
Chromium and nickel are important alloying elements in Grade 304. Chromium supports the passive surface layer associated with stainless steel corrosion resistance, while nickel helps maintain the austenitic structure and contributes to forming and mechanical characteristics.
The final chemistry of supplied material should be confirmed from the applicable material certificate against the specification stated in the purchase order.
304 Stainless Steel Pipe Mechanical Properties
| Property | Grade 304 |
|---|---|
| Tensile Strength, minimum | 515 MPa |
| Yield Strength, 0.2% Proof, minimum | 205 MPa |
| Elongation in 50 mm, minimum | 40% |
| Rockwell B Hardness, maximum | 92 HRB |
| Brinell Hardness, maximum | 201 HB |
Mechanical properties are important when engineers review the material for pressure piping, fabrication and structural service.
The actual acceptance criteria should follow the material specification and project code stated in the purchase documentation.
304 Stainless Steel Pipe Physical Properties
| Property | Grade 304 |
|---|---|
| Density | 8000 kg/m³ |
| Elastic Modulus | 193 GPa |
| Mean Coefficient of Thermal Expansion, 0 to 100°C | 17.2 |
| Mean Coefficient of Thermal Expansion, 0 to 315°C | 17.8 |
| Mean Coefficient of Thermal Expansion, 0 to 538°C | 18.4 |
| Thermal Conductivity at 100°C | 16.2 W/m.K |
| Thermal Conductivity at 500°C | 21.5 W/m.K |
| Specific Heat, 0 to 100°C | 500 J/kg.K |
| Electrical Resistivity | 720 n.m |
These properties can be useful during engineering calculations involving thermal expansion, heat transfer, equipment design and piping support.
The design engineer should use the values required by the applicable design code for final calculations.
UNS S30400 / EN 1.4301 / SUS 304 Stainless Steel Pipe
UNS S30400, EN 1.4301, X5CrNi18-10 and SUS 304 are commonly used designations for Grade 304 stainless steel.
For procurement, specify the complete grade and product standard, such as:
ASTM A312 TP304 / ASME SA312, UNS S30400
These pipes are used in food processing, chemical processing, water handling, petrochemical service and general industrial piping.
Leoscor Alloy Pipes supplies Grade 304 pipes in seamless, ERW, welded, fabricated and other available forms.
Product Details
| Parameter | Details |
|---|---|
| Grade | Stainless Steel 304 |
| UNS | S30400 |
| EN Number | 1.4301 |
| EN Name | X5CrNi18-10 |
| JIS | SUS 304 |
| Specifications | ASTM A312 / ASME SA312, ASTM A358 / ASME SA358 |
| Size Range | 1/8 inch NB to 30 inch NB |
| Types | Seamless, ERW, Welded, Fabricated, LSAW |
| Lengths | Single Random, Double Random, Cut Length |
| Ends | Plain, Beveled, Threaded |
Are 304, S30400, 1.4301 and SUS 304 the Same?
They are commonly cross-referenced designations for Grade 304 stainless steel. However, product standards, dimensions, tolerances, manufacturing requirements and certification must be confirmed separately.
| System | Designation |
|---|---|
| AISI | 304 |
| UNS | S30400 |
| EN | 1.4301 |
| EN Name | X5CrNi18-10 |
| JIS | SUS 304 |
Stainless Steel 304 Pipes Price List
Leoscor Alloys Pipes is one of the most competitive suppliers of pipes and tubes from India. Our prices for SS 304 Pipes are very competitive.
Please click on the request a quote button or click here to request the updated price list and ready stock information along with your requirement. Leoscor Alloys maintains a stock of all standard items and can export them at best price for 304 Stainless Steel Seamless and Welded Pipes.
Stainless Steel 304 Pipes Stock Availability
We maintain huge inventories of all standard sizes and grades. Please send us your complete requirement and we will send you the availability with best quote for Stainless Steel 304 Pipes.
Why Buy 304 Stainless Steel Pipes from Leoscor Alloys
Leoscor Alloys Pipes is a leading stockist, distributor and supplier of 304 Stainless Steel Pipes from India. With more than three decades of experience, we understand the steel industry deeply. We have huge experience of supplying to all major industries across the world. Our team of dedicated experts with stringent quality policy ensures that we supply best-in-class products meeting and exceeding our client’s expectations. Below are a few quick points about why buying from Leoscor Alloys Pipes will give you an undue advantage:
- Huge inventory of all standard sizes and grades.
- Distributors of all reputed origins and manufacturers.
- Strict quality control policies and highly experienced team.
- Strong logistics & delivery channels.
- Modern Infrastructure with huge storage capacity.
- An ISO 9000:2015 Certified Company.
Prominent Countries where we export 304 SS Pipes
Exporting Pipes & Tubes to Singapore, Malaysia, Hongkong, Thailand, Indonesia, Taiwan. Other countires includes Afghanistan, Albania, Andorra, Austria, Bahrain, Bangladesh, Bhutan, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Netherlands, Norway, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, South Korea, South Africa, Sri Lanka, Syria, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen.
We are one of the top:
- Pipes exporters to Singapore
- Pipes exporters to Malaysia
- Pipes exporters to Hongkong
- Pipes exporters to Thailand
- Pipes exporters to Indonesia
- Pipes exporters to Taiwan









