347H Stainless Steel Pipes Supplier and Exporter | Leoscor Alloy Pipes
SUS 347H Pipes supplied by Leoscor Alloy Pipes are high-carbon, niobium-stabilized austenitic stainless steel pipes designed for high-temperature applications requiring excellent strength, corrosion resistance, and long-term stability.
347H Stainless Steel Pipes are developed for environments where standard stainless steel grades may lose mechanical strength after prolonged exposure to heat. The addition of niobium improves resistance against carbide precipitation and helps prevent intergranular corrosion after welding or high-temperature service.
Leoscor Alloy Pipes is a trusted manufacturer, stockist, and exporter of SUS 347H Pipes supplied in seamless, welded, ERW, EFW, and fabricated forms. Our pipes are manufactured using quality raw materials and supplied in different sizes, shapes, and specifications to meet industrial requirements.
SUS 347H Pipes are high-carbon versions of 347 stainless steel pipes stabilized with niobium. The higher carbon content provides improved creep strength and better mechanical performance at elevated temperatures compared with standard 347 stainless steel.
Also known as SS 347H Pipes, UNS S34709 Pipes, and DIN 1.4961 Pipes, these pipes are designed for applications where heat resistance, toughness, and corrosion protection are required.
Equivalent Names of 347H Stainless Steel Pipes
| Equivalent Designation | Explanation |
|---|---|
UNS S34709 Pipes |
UNS S34709 is the unified numbering system designation for high-carbon 347H stainless steel pipes designed for improved high-temperature strength. |
| SUS 347H Pipes | SUS 347H is the Japanese Industrial Standard (JIS) designation for niobium-stabilized high-carbon stainless steel pipes. |
| DIN 1.4961 Pipes | DIN 1.4961 is the European designation for 347H stainless steel used in heat-resistant industrial applications. |
Key Benefits of 347H Stainless Steel Pipes
347H Stainless Steel Pipes supplied by Leoscor Alloy Pipes offer the following advantages:
- Excellent High-Temperature Strength: Maintains mechanical strength during prolonged exposure to elevated temperatures.
- Niobium Stabilization: Reduces carbide precipitation and improves resistance against intergranular corrosion.
- Superior Creep Resistance: Suitable for continuous high-temperature pressure applications.
- Excellent Corrosion Resistance: Performs reliably in oxidizing and corrosive environments.
- Good Weldability: Maintains stability after welding operations.
- Long Service Life: Provides reliable performance in demanding industrial conditions.
- Multiple Forms Available: Supplied in seamless, welded, ERW, EFW, and fabricated options.
SS 347H Pipes Specifications
Standard specifications for SS 347H 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 347H Pipes | 1/2″ NB – 16″ NB |
| ERW 347H Pipes | 1/2″ NB – 24″ NB |
| EFW 347H 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 |
347H SS Pipes Chemical Composition
| Grade | 347H | |
|---|---|---|
| min | max | |
| C | 0.04 | 0.10 |
| Mn | – | 2.0 |
| Si | – | 1.00 |
| P | – | 0.045 |
| S | – | 0.030 |
| Cr | 17.0 | 19.0 |
| Mo | 3.00 | 4.00 |
| Ni | 9.0 | 13.0 |
| N | – | – |
347H SS Pipes Mechanical Properties
| Grade | 347H | |
|---|---|---|
| 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 347H Pipes Physical Properties
| Grade | 347H | |
|---|---|---|
| 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 | |
SS 347H Pipes Equivalent Grades
| Grade | 347H | |
| UNS No | S34709 | |
| Old British | BS | – |
| En | – | |
| Euronorm | No | 1.4961 |
| Name | – | |
| Swedish SS | – | |
| Japanese JIS | SUS 347H | |
Types of Stainless Steel 347H Pipes
| SS 347H Welded Pipes | 347H Stainless Steel Welded Pipes |
| Steel 347H Welded Pipes | SS 347H Seamless Pipes |
| 347H Stainless Steel Seamless Pipes | Steel 347H Seamless Pipes |
| SS 347H ERW Pipes | 347H Stainless Steel ERW Pipes |
| Steel 347H ERW Pipes | SS 347H Fabricated Pipes |
| 347H Stainless Steel Fabricated Pipes | Steel 347H Fabricated Pipes |
| SS 347H LSAW Pipes | 347H Stainless Steel LSAW Pipes |
| Steel 347H LSAW Pipes | Stainless Steel 347H Pipes |
Stainless Steel 347H Pipes also known as
ASTM A213 SS 347H Hot Rolled Pipes Supplier, Stainless Steel TP 347H Square Pipes, AISI / JIS SS 347H Pipes. SS 347H Oval Pipes, 347H Steel Hex Pipes Exporter, 347H SS Cold Rolled Pipes Exporter, ASME SA358 347H SS Rectangular Pipe, SS 347H Welded Pipes, ASTM A213 SS TP 347H ERW Pipe, TP 347H SS EFW Pipes, ASME SA312 Stainless Steel 347H Cold Drawn Pipes Supplier
Stainless Steel 347H Pipes Price List
Leoscor Alloys is one of the most competitive suppliers of pipes and tubes from India. Our prices for SS 347H 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 347H Stainless Steel Seamless and Welded Pipes.
347H 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
Stainless Steel 347H 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 347H Pipes.
- 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 347H 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
