Stainless steel 347H tubing is a type of austenitic stainless steel that is used in high-temperature applications.
SS 347H Seamless Tubes Suppliers -Wholesale Prices for SS 347H Seamless Tubes, Valour Alloys is a renowned Manufacturers of Stainless Steel Tubes in ASTM A249 / A268 / A269 / A270 in Grades 347H, eat Exchanger Tube, Boiler Tube, Condenser Tube, Instrumentation Tube, U-Bend Tube, Coil Tube, Capillary Tube etc.
Valour Alloy Inc., we carry a full inventory of Stainless Steel 347H Tube and Supply 347H tube is a high-performance material engineered specifically for challenging environments, particularly those involving elevated temperatures and corrosive conditions. We specializes in Stainless Steel 347H Tube with years of Experience in Manufacturing Stainless Steel 347H Tube. we offer high quality, lower cost but the best service. As a result to that our Stainless Steel 347H Tube export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.
Stainless Steel 347H Seamless Tubes
Stainless Steel 347H Welded Tube
We Supply Stainless Steel 304 Tube s in Grades in Specification ASME SA /ASTM A269, A312, A213 and Grades 202, 304, 304L, 304H, 304LN, 309s, 310s, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, 254 SMO , 6MO , 6 MOLY, UNS S31254 etc. The grade indicates the testing methods required for a given application.
347H Tube: How Strong Is It Really?
Our answer is YES because Stainless Steel 347H tubes is popular for their high material specification and they have ability to challenge elevated temperatures and corrosive conditions. When we talk about the Stainless Steel 347H Tube material so 347H is based on the austenitic stainless steel family but is uniquely formulated with niobium (columbium) to stabilize the structure. H stands for High carbon is a modification material to be used in heavy applications such as aircraft, power generation, and manufacturing high-temperature strength, especially under prolonged exposure to stress.
347H Tube Prices in 2025: What to Expect.
Valour Alloys Inc. explain here the expected pricing of 347 Tubes in the year 2025 automatically depends on the cost of raw materials Prices for nickel, chromium, and niobium remain critical. Any upward pressure on these alloying elements—is driven by supply chain disruptions or increased global demand also, we have to look at global Stainless Steel trends the global market does not have stable they are dynamics, including tariff uncertainties, fluctuating demand in sectors like power generation, aerospace, and petrochemicals, and regional supply differences, will impact pricing.
What to Expect in 2025? Our expectation for moderate price volatility The row material cost is not stable so that's why 347H tube prices may experience modest volatility throughout the year if row material purchases are in high demand so automatically costs continue to trend upward, manufacturers are likely to pass some of these costs on to end users, potentially leading to a modest increase in prices relative to 2024.
3 Common Problems with 347H Tube (and Fixes)
Recently we conducted a survey for Engineering Industries so that we get the top 3 common problems of Stainless Steel 347H Tubes such as Sensitization and Intergranular Corrosion Although 347H is stabilised with niobium to prevent chromium carbide formation, improper heat treatment or prolonged exposure to critical temperature ranges (typically between 800°F and 1500°F) can lead to sensitisation. Do you know how to fix them? There are three ways to fix this problem such as Proper Heat Treatment, Controlled Operating Temperatures, and Welding Procedures we explain below their solutions.
- Proper Heat Treatment
- Controlled Operating Temperatures
- Welding Procedures
Proper Heat Treatment We have to ensure the tube undergoes correct solution annealing followed by rapid cooling to lock in the stabilized microstructure and Controlled Operating Temperatures Monitor and adjust service conditions to avoid prolonged exposure in the sensitization temperature range For Welding Procedures Use recommended welding techniques and, if needed, apply post-weld heat treatments to maintain corrosion resistance.
347H Tube: Why It Beats Other Steel
Valour Alloys Inc. is one of the primary manufacturers of Stainless Steel 347H Tube The company has much experience in manufacturing and retailing Stainless Steel 347H Tube and the company also manufactures other grade products such as Stainless Steel 410 Tube used in many industries such as including construction, petrochemical, and power plant etc both products material similar and using similar industries but it's different products and chemical and mechanical properties.
Stainless Steel 347H tube Range
| SS 347H Tubes Outer Diameter Size | SEAMLESS - 6 MM OD TO 114.3 MM OD WELDED / ERW- 10 MM TO 114.3 MM OD |
| SS 347H Tubes Wall Thickness | 0.8 MM TO 4 MM WALL THICKNESS |
| SS 347H Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| SS 347H Tubes Ends | Plain Ends / Beveled En |
| SS 347H Tubes Specification | ASTM A-249, A-268, A-269, A-270, A-554, A-688, A-778, DIN 17455, DIN 17456, 17457, DIN 17458 [Class 1] & Its equivalent ASME, DIN & EN Standard. |
| SS 347H Tubes Grades | 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
| SS 347H Tubes Dimension | All Pipe Fitting Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| SS 347H Tubes Type | SEAMLESS / WELDED / ERW / EFW / COLD DRAW / HOT FINISH / COLD FINISH |
| SS 347H Tubes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| SS 347H Tubes Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| SS 347H Tubes Machinery | Draw Bench / Pilger / De-Coiler / Edge Miller / Welding Line / Heat Treatmen Furnace / Pickling Tank / Cutting Bench etc. |
| SS 347H Tubes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| SS 347H Tubes Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| SS 347H Tubes Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| SS 347H Tubes Other Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc. |
| SS 347H Tubes Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC. |
Chemical Composition of Stainless Steel 347H Tubes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 347 | min. | – | – | – | – | – | 17.0 | – | 9.0 | – |
| max. | 0.08 | 2.0 | 1.0 | 0.040 | 0.030 | 20.0 | 13.0 | – | ||
| 347H | min. | 0.04 | – | – | – | – | 17.0 | – | 9.0 | 8xCmin |
| max. | 0.10 | 2.0 | 1.0 | 0.045 | 0.030 | 19.0 | 13.0 | 1.0 max | ||
Mechanical Properties of Stainless Steel 347H Tubes
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347 | 515 | 205 | 40 | 92 | 201 |
| 347H | 515 | 205 | 40 | 92 | 201 |
Equivalent Grade of Stainless Steel 321H Tubes
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321H |
| 347 | S34700 | 347S31 | 58G | 1.4550 | X6CrNiNb18-10 | 2338 | SUS 347 |
| These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. | |||||||
Other Available Products Of Stainless Steel 347H Tubes
| Stainless Steel TP 347H Seamless Tubes | A249 SS TP 347H Welded Tube Suppliers |
| ASTM A213 347H Stainless Steel Rectangular Tubes | TP 347H Stainless Steel ERW Tubes Distributors |
| UNS S34700 Stainless Steel Coiled Seamless Tubing | Top Quality Stainless Steel TP 347H Heat Ex-changer Tubes |
| Stainless Steel DIN DIN 1.4550 Round Tubing Exporter | TP 347H SS EFW Tubing Stockiest in India |
| Stainless Steel JIS SUS 347H Cold Rolled Coiled Tubing | ASTM A269 347H Stainless Steel Tubing |
| SS 347H Austenitic Stainless Steel Pipe Fitting & Tubes | ASTM A213 Stainless Steel TP 347H Capillary Tube |
| Stainless Steel 347H U Shaped Tubing Stockholder | TP 347H Stainless Steel Hydraulic Tubes Suppliers |
| Stainless Steel ASTM A213 TP 347H Welded Tubing | AISI Stainless Steel ASTM A213 347H Seamless Tubing |
| SS ASME SA 249 TP 347H Welded Tube Exporter | TP 347H Stainless Steel Instrumentation Tubes Exporter |
| ASTM A358 347H Stainless Steel ERW Tubes Manufacturer | Stainless Steel TP 347H Seamless Tubing Supplier |
Test Certificates
We Stainless Steel 347H Tube with the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.
Marking & Packing
Our Stainless Steel 347H Tube is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All Stainless Steel 347H Tube are marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements
Supplying Stainless Steel 347H Tubes to Countries
We Export Stainless Steel 347H Tubes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.
Distributing Stainless Steel 347H Tubes to Cities
We Export Stainless Steel 347H Tubes to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.