304H Stainless Steel Pipes Supplier and Exporter | UNS S30409 & SUS 304H | Leoscor Alloy Pipes
304H Stainless Steel Pipes are high-carbon austenitic stainless steel pipes designed for applications requiring improved strength, creep resistance, and stable performance at elevated temperatures. The higher carbon content of SS 304H provides better high-temperature mechanical strength compared with standard 304 stainless steel.
Leoscor Alloy Pipes is a trusted manufacturer, stockist, supplier, and exporter of Stainless Steel 304H Pipes, offering high-quality pipe solutions for critical industrial applications. These pipes are available in different sizes, wall thicknesses, schedules, and customized specifications according to customer requirements.
SS 304H Pipes are a modified version of 304 stainless steel with controlled higher carbon content. This composition improves creep strength and resistance to high-temperature deformation, making them suitable for continuous service in elevated temperature environments.
304H Stainless Steel Pipes contain chromium and nickel as major alloying elements, providing good corrosion resistance, oxidation resistance, and durability. These pipes are commonly selected for applications where both corrosion resistance and high-temperature strength are required.
The grade is internationally identified through different material designations including UNS S30409 Stainless Steel Pipes and SUS 304H Stainless Steel Pipes.

Equivalent Names of 304H Stainless Steel Pipes
| Equivalent Name | Standard / Country | Explanation |
|---|---|---|
| UNS S30409 Stainless Steel Pipes | USA (Unified Numbering System) | Material designation used for SS 304H Pipes. |
| SUS 304H Stainless Steel Pipes | Japan (JIS/SUS Standard) | Japanese designation used for SS 304H Pipes. |
Key Features of 304H Stainless Steel Pipes
- Excellent high-temperature strength
- Improved creep resistance
- Good oxidation resistance
- Good corrosion resistance
- Excellent durability during continuous heating
- Good weldability and fabrication properties
- Suitable for pressure and heat service applications
SS 304H Pipes Specifications
Standard specifications for SS 304H Pipes. If any specification is not mentioned here, you can contact us. We also manufacture and export custom specifications as per client’s requirements.
| Specifications | Details |
|---|---|
| Specifications | ASTM A312 / ASME SA312, ASTM A358 / ASME SA358 |
| Dimensions | ASTM, ASME and API |
| SS 304H Pipes | 1/2″ NB – 16″ NB |
| ERW 304H Pipes | 1/2″ NB – 24″ NB |
| EFW 304H Pipes | 6″ NB – 100″ NB |
| Size | 1/8″ NB to 30″ 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 & Cut Length |
| End | Plain End, Beveled End, Threaded |
304H 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
Types of Stainless Steel 304H Pipes
| SS 304H Welded Pipes | 304H Stainless Steel Welded Pipes |
| Steel 304H Welded Pipes | SS 304H Seamless Pipes |
| 304H Stainless Steel Seamless Pipes | Steel 304H Seamless Pipes |
| SS 304H ERW Pipes | 304H Stainless Steel ERW Pipes |
| Steel 304H ERW Pipes | SS 304H Fabricated Pipes |
| 304H Stainless Steel Fabricated Pipes | Steel 304H Fabricated Pipes |
| SS 304H LSAW Pipes | 304H Stainless Steel LSAW Pipes |
| Steel 304H LSAW Pipes | Stainless Steel 304H Pipes |
304H SS Pipes Chemical Composition
| Grade | 304H | |
|---|---|---|
| min | max | |
| C | – | 0.10 |
| Mn | – | 2.0 |
| Si | – | 0.75 |
| P | – | 0.045 |
| S | – | 0.03 |
| Cr | 18.0 | 20.0 |
| Mo | – | – |
| Ni | 8.0 | 10.5 |
| N | – | – |
304H SS Pipes Mechanical Properties
| Grade | 304H | |
|---|---|---|
| Tensile Strength (MPa) min | 515 | |
| Yield Strength 0.2% Proof (MPa) min | 205 | |
| Elongation (% in 50mm) min | 40 | |
| Hardness | Rockwell B (HR B) max | 92 |
| Rockwell B (HR B) max | 201 | |
SS 304H Pipes Physical Properties
| Grade | 304H | |
|---|---|---|
| Density (kg/m3) | 8000 | |
| Elastic Modulus (GPa) | 193 | |
| Mean Coefficient of Thermal Expansion (m/m/0C) | 0-1000C | 17.2 |
| 0-3150C | 17.8 | |
| 0-5380C | 18.4 | |
| Thermal Conductivity (W/m.K) | at 1000C | 16.2 |
| at 5000C | 21.5 | |
| Specific Heat 0-1000C (J/kg.K) | 500 | |
| Electrical Resistivity (n.m) | 720 | |
Stainless Steel 304H Pipes Price List
Leoscor Alloys is one of the most competitive supplier of pipes and tubes from India. Our prices for SS 304H 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 304H Stainless Steel Seamless and Welded Pipes.
Stainless Steel 304H 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 the best quote for Stainless Steel 304H Pipes.
Prominent Countries where we export 304H 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:
- SS 304H Pipes exporters to Singapore
- SS 304H Pipes exporters to Malaysia
- SS 304H Pipes exporters to Hongkong
- SS 304H Pipes exporters to Thailand
- SS 304H Pipes exporters to Indonesia
- SS 304H Pipes exporters to Taiwan









