Daxun 347-347H UNS S34700 stainless steel PIPE and TUBE China supplier
As a leading stainless steel supplier and exporter in China, Daxun supplies stainless steel barsRod (Round Bar)to all over the world.
- Grade: AISI 17-4PH-SUS630
- Manufacturing: hot rolling, cold drawing, forging
- Standard: ASTM, ASME, GB, DIN, JIS, ISO
- High strength
- High hardness
- Wear resistance
- Heat treatable
Global leader in stainless steel pipe and tube fabrication services
Global Leader in Stainless Steel Rod and Round Bar Fabrication
Daxun is a trusted global supplier and exporter of SS 17-4PH/630 round bars and rods. We produce high-quality products in a range of surface finishes, end treatments, dimensions, shapes, and sizes to suit your exact requirements.
Why Choose SS 17-4PH?
SS 17-4PH is a martensitic stainless steel that undergoes precipitation hardening for superior mechanical properties. Its alloying elements—nickel, copper, and chromium—contribute to excellent strength, corrosion resistance, and durability. Widely adopted in the aerospace industry, this alloy is ideal for fasteners and other structural components thanks to its refined microstructure, which is developed through a controlled remelting process.
Optimized Properties Through Heat Treatment
UNS S17400, the designation for 17-4PH, responds well to heat treatment and aging. These processes enhance its toughness and ductility, making it suitable for demanding applications. Compared to many high-nickel, non-ferrous alloys, 17-4PH provides a more cost-effective solution without sacrificing performance.
A Versatile Choice for Many Industries
Stainless steel 17-4PH round bars are popular in manufacturing and engineering due to their corrosion resistance, high strength, and ease of production. The “PH” stands for precipitation hardening, a treatment method that further improves the material’s mechanical properties. With its balanced combination of features and value, 17-4PH is an excellent choice for a wide range of industrial projects.
ur network of service centers stock stainless steel bar products for fast, ready supply of bar in common sizes and alloys.We also produce custom-sized stainless steel rods and can arrange inventory schedules for quick turnaround in a timely manner if quantities are below factory minimums.Daxun Alloys stocks stainless steel round bars with diameters ranging from 1/16″ to 26″. Round bars are available in nearly every grade of stainless steel, including 302, 303, 304/L, 309/S, 310/S, 316/L, 317/L, 321, 321/H, 347, 347H, 410, 416, 420, 440C, 17-4PH, Duplex 2205, and Alloy 20. Heat treated stainless steel round bars are offered in 17-4PH, H900 temper (on request), H1025, H1150, Double H1150, and H1150M. Other heat-treated tempers can be manufactured upon request. We stock the following 400 series stainless steels: 410, 430, and 416. We also carry 303, 304, and 316/L precision and bearing quality stainless steel round bars. The majority of our inventory consists of our unique machined bar grades: stainless steel round bars that are melted to consistent standards to increase machinability and lower total cost per component. Our stainless steel bar processing machinery allows Daxun Alloys to produce to our customers’ exact specifications.
It performs reliably in high temperature service conditions between 600°F and 800°F.
Data
- TECHNICAL PARAMETERS
- INGREDIENTS
- MECHANICAL PROPERTIES
- PHYSICAL PROPERTIES
- EQUIVALENT GRADE
- PIPE TYPE
| Stainless Steel 347 Tube Standards | ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156 |
| 347 SEAMLESS Stainless Steel Aerospace Tubing | AMS 5557, AMS 5897 (Canceled & non-current specs include MIL-T-8808, MIL-T-8973) |
| 347 WELDED & DRAWN Stainless Steel Aerospace Tubing | AMS 5556, AMS 5575 (Canceled & non-current specs include MIL-T-6737, MIL-T-8606, MIL-T-8808) |
| Stainless Steel 347 Seamless Tube Size | 1.2 mm OD To 630 mm OD |
| Stainless Steel 347 Welded Tube Size | 1.2 mm OD To 1219 mm OD |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Stainless Steel 347 tubing wall thickness | 0.020″ –0.220″, (special wall thicknesses available) |
| SS 347 tube Length | Single Random, Double Random, Standard & Cut length |
| 347 Stainless Steel Tube Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Stainless Steel 347 tube Form | Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc. |
| Stainless Steel 347 Tube Type | Seamless, ERW, EFW, Welded, Fabricated |
| Electropolished | (EP) Electropolished for Ultra High Purity Systems |
| Non-Electropolished | (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
| I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
| JIS | 8A to 250A |
| Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| 347 stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| Marking | All 347 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| 347 stainless steel tubing Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Stainless Steel 347 Capillary Tube & Other Odd Size |
| Stainless Steel 347 Heat Exchanger & Condenser Tubes | |
| Stainless Steel 347 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition | |
| Stainless Steel 347 hydraulic tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition | |
| Marking & Traceability | Each Stainless Steel 347 Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| 347 stainless steel tubing Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. | |
| Under Third Party Inspection | |
| 347 stainless steel tubing Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
| We can also cut, thread, and groove Stainless Steel 347 Tubes to meet your specifications | |
| Composition of 347/347H Pipe and Tubing | ||
| Grade | 347 | 347H |
| UNS Designation | S34700 | S34709 |
| Carbon (C) Max. | 0.08 | 0.04–0.10 |
| Manganese (Mn) Max. | 2 | 2 |
| Phosphorous (P) Max. | 0.04 | 0.04 |
| Sulphur (S) Max. | 0.03 | 0.03 |
| Silicon (Si) Max. | 0.75 | 0.75 |
| Chromium (Cr) | 17.0–20.0 | 17.0–20.0 |
| Nickel (Ni) | 9.0–13.0 | 9.0–13.0 |
| Molybdenum (Mo) | — | — |
| Nitrogen (N) | — | — |
| Iron (Fe) | Bal. | Bal. |
| Other Elements | Cb+Ta=10xC-1.0 | Cb+Ta=8xC-1.0 |
| Physical Properties of 347/347H Alloys in the Annealed Condition at -20°F to +100°F | ||||||||||||||
| Tensile Strength | Yield Strength | |||||||||||||
| Alloy | UNS Designation | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 inches (min.) % | Grain Size Req. | Maximum Harndess | Modulus of Elasticity (x106 psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Thermal Conductivity (BTU-in/ft2-h-°F) |
| 347 | S34700 | — | 75,000 | 515 | — | 30,000 | 205 | — | 35 | — | — | 29 | 9.2 | — |
| 347H | S34709 | — | 75,000 | 515 | — | 30,000 | 205 | — | 35 | 7 or coarser | — | 29 | 9.2 | — |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 347 | 8000 | 193 | 15.9 | 16.2 | 17 | 14.2 | 18.7 | 500 | 740 |
| 347H | 8000 | 193 | 15.9 | 16.2 | 17 | 14.2 | 18.7 | 500 | 740 |
| Grade | CHINA | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | |||||
| 347 | 0Cr18Ni11Nb | S34700 | – | X6CrNiNb18-10 | 1.455 | – | – | – |
| 347H | 07Cr18Ni11Nb | S34709 | – | – | 1.4961 | – | – | – |
| Stainless Steel ASTM A213 TP347H/347 Condenser Tube | Stainless Steel 347H/347 Welded Pipe |
| ASTM A269 TP347H/347 straight tube | 347H/347 Stainless Steel Welded Tube |
| ASTM A249 TP347H/347 Mirror Tube | Jis 347H/347 Stainless Steel Tubing |
| JIS SUS347H/347 Seamless Tubes | Din 1.4550 Stainless Steel Tube |
| Stainless Steel SA312 TP347H/347 Welded Tubes | Stainless Steel AISI 347H/347 Seamless Tube |
| ASTM A312 TP347H/347 Coiled Tubing | Stainless Steel Inox 347H/347 Capillary Tubing |
| ASTM A312 gr TP 347H/347 Aerospace tubes | ASTM A632 TP347H/347 Electric Fusion Welding Pipes |
| Stainless Steel 347H/347 Grade Pipe | Type 347H/347 Stainless Steel Polished Pipes |
| ASTM A312 TP347H/347 Elliptical Tubes | ASTM A213 SS TP 347H/347 Stainless Steel Rectangular Tube |
| 347H/347 Stainless Steel Oval Tubing | SS 347H/347 Needle Tube |
| Din 1.4550 Stainless Steel Welded Pipes | ASTM A358 TP347H/347 Coil Tubing Heat Exchanger |
| SAE J405 Uns S347H/34700 Thin Wall Tubing | 347H/347 Stainless Steel Metric Tubing |
| 347H/347 Stainless Steel Seamless Square Tubing | Large Diameter 347H/347 Stainless Steel Tube |
| SS 347H/347 Erw Pipe | 347H/347 Stainless Steel Instrumentation Tubing |
| High-pressure 347H/347 Stainless Steel Water Pipe | Stainless Steel 347H/347 Hexagonal Pipe |
| Din W.-Nr. 1.4550 Aisi 347H/347 Corrugated Tube | Stainless Steel 347H/347 Round Tube |
| UNS S347H/34700 Seamless Pipes | Stainless Steel 347H/347 Seamless Round Tubing |
| ASTM A358 TP347H/347 Polished Tubing | 347H/347 Stainless Steel Ornamental Tube |
| Stainless Steel ASTM A312 TP347H/347 erw | 347H/347 Stainless Steel Spiral Pipe |
| ASME SA213 TP347H/347 Perforated Tube | Din 1.4550 Material Tube |
| Stainless Steel SA 688 TP347H/347 Finned Tube | SA312 TP347H/347 Dom Tube |
| Din 1.4550 AISI 347H/347 Perforated Exhaust Tube | Stainless Steel 347H/347 Hypodermic Tubing |
| Material 1.4550 Aisi 347H/347 Slotted Handrail Tube | SA312 TP347H/347 Thin Wall Tube |
| SA213 TP 347H/347 Thick Wall Tube | En 1.4550 / Aisi 347H/347 Hydraulic Tubing |
| Stainless Steel 347H/347 Ornamental Pipe | Stainless Steel 347H/347 Fin Tube / Finned Tube |
| S347H/34700 Stainless Steel U Shaped Tube | 347H/347 Stainless Steel Square Tube Mirror Finish |
| Din 1.4550 Material Seamless Tubing | Stainless Steel WERKSTOFF NR. 1.4550 Coaxial Tube |
| 347H/347 Stainless Steel Rectangular Pipe | 347H/347 Stainless Steel Hypodermic Tubing for Medical Needle |
| 1.4550 Instrument Tubing | 347H/347 Stainless Steel Square Tubing |
| Ultra-High Purity Electropolished Stainless Steel 347H/347 Tube | Thin Wall S347H/34700 Stainless Steel Pipe |
| 347H/347 Stainless Steel ERW Pipes | Corrugated 347H/347 Stainless Steel Tube (CSST) for Gas |
| Jis 347H/347 Stainless Steel Coil Tubing | Stainless Steel 347H/347 Seamless Pipe |
| Schedule 10 Type 347H/347 Stainless Steel Pipe | Schedule 40 Type 347H/347 Stainless Steel Pipe |
| SA 312 TP347H/347 Seamless Tubing | Polished 347H/347 Stainless Steel Tubing |
| 347H/347 Stainless Steel Threaded Pipe | SAE 347H/347 Stainless Steel Rectangular Tube |
| Stainless Steel 347H/347 EFW Pipe | SS 347H/347 Electropolish Pipe |
| Stainless Steel 347H/347 Pipe | SS UNS S347H/34700 Heat exchager Pipe |
| DIN 1.4550 SS 347H/347 Pipe | Stainless Steel WERKSTOFF NR. 1.4550 Pipe |
| Stainless Steel UNS S347H/34700 Welded Pipe | ASTM A249 TP 347H/347 Stainless Steel High Pressure Pipe |
| ASTM A312 TP 347H/347 SS Seamless Pipe | Stainless Steel WERKSTOFF NR.1.4550 |
| 347H/347 SS Electropolished Pipe | SS UNS S347H/34700 Heat exchager Pipe |
| Stainless Steel 347H/347 Seamless Pipe | 347H/347 SS Decorative Pipe |
| SS 347H/347 Pipe | ASTM A249 TP 347H/347 Stainless Steel High Pressure Pipe |
| Stainless Steel 347H/347 Round Pipe | SS 347H/347 Cold Rolled Coiled Tubing |
| Austenitic Stainless Steel 347H/347 Pipe | SS 347H/347 Polish Pipe |
| ASTM A312 Stainless Steel Pipe | Stainless Steel 347H/347 Instrumentation Pipe |
| WERKSTOFF NR. 1.4550 SS 347H/347 Pipe | Stainless Steel 347H/347 Bright Annealed Pipe |
| 347H/347 Stainless Steel Seamless Pipe | TP347H/347 SS Welded Pipe |
| Stainless Steel 347H/347 Seamless Pipe | Stainless Steel 347H/347 Seamless Pipe |
| Stainless Steel GOST 08Ch18N12B Pipe | SS 347H/347 Santiary Pipe |
| WERKSTOFF NR.1.4449 SS 347H/347 Pipe | Stainless Steel 347H/347 Pipe |
| SS 347H/347 Welded Pipe | Stainless Steel 347H/347 Welded tubing |
| Stainless Steel 347H/347 Welded Pipe | SS TP347H/347 Seamless Tubing |
| SS TP347H/347 Seamless Pipe | 347H/347 Stainless Steel Seamless Pipe |
| 347H/347 SS Hollow Pipe | SCH40 347H/347 Stainless Steel pipe |
| TP347H/347 SS Welded Pipe | 347H/347 Stainless Steel erw Pipe |
| ASTM A213 Stainless Steel Tubing | 347H/347 Seamless Stainless Steel Pipe |
| Stainless Steel 347H/347 Electropolish Pipe | 347H/347 Stainless Steel erw Pipe |
| 347H/347 Stainless Steel Seamless Pipe | SS 347H/347 Cold Rolled Coiled Tubing |
| Stainless Steel WERKSTOFF NR. 1.4550 Pipe | ASTM A249 TP 347H/347 SS Seamless Pipe |
| TP 347H/347 SS ERW Pipe | SS 347H/347 Pipe |
| Stainless Steel 347H/347 Pipe | Stainless Steel UNS S347H/34700 Square Pipe |
| ASTM A312 TP347H/347 Stainless Steel Pipe | SS DIN 1.4550 Rectangular Welded Pipe |
Choose Daxun and make your customers satisfied.
- Higher creep stress and rupture performance
- Excellent for high temperature service
- Can be used in ASME boilers and pressure vessels
- The material has better overall corrosion resistance
- Excellent mechanical properties
- High carbon version (347H) has good high temperature creep performance
- Used for heavy welding equipment where annealing is not possible
- Good oxidation resistance
- Prevents harmful carbide precipitation in the heat affected zone (HAZ) of the weld area
- Imparts substantial immunity to intergranular corrosion
- Reduces embrittlement in the heat affected zone of the weld are
—347 Stainless Steel pipe and tube
Daxun Advantages
- Varieties: We offer a wide range of sizes and grades, including 300 series, 400, 600 series, and more.
- Flexibility: Whether you need hot-rolled or cold-drawn bars, our stainless steel bar lengths are designed to meet your specific project requirements.
- Quality Standards: 17-4 Stainless Steel Rod meet strict ASTM, ISO9001, GB, NSF/ANSI standards to ensure reliability and performance.
- Custom Orders: Looking for special sizes of stainless steel bars? We offer a variety of stainless steel bar customization options with competitive prices and convenient online ordering.
17-4 Stainless Steel Rod packaging
We pay attention to every process to ensure quality, the 17-4 round steel packaging we usually adopt is to pack the stainless steel round bars with environmentally friendly plastic bags, and then put them into fumigation-free wooden boxes or wooden pallets. Customized packaging, such as OEM, can also be negotiated. We provide almost everything to meet your round bar packaging requirements. We attach great importance to packaging. The round bars are packed in wooden corrugated boxes, and the outside is wrapped with plastic packaging and bubble film.
Quality, delivery, inspection
- Daxun also conducts several quality assurance tests. These tests include flattening test, pitting and resistance test, mechanical test, hardness test, material positive identification, expansion test, etc. All these tests ensure that the material is suitable for the required application.
- During the production process, we measure the diameter, thickness, and surface of the product. Our standard delivery time is 7-15 days, except for some special size products, our delivery time will increase to 20 days. Our delivery time is strictly in accordance with the contract.
- Support customer third-party agencies to go to the factory for inspection
- Support free samples to customers for testing
- Support on-site or video factory inspection
Technical Support
-
If you need any additional technical assistance, our resident metallurgist and knowledgeable staff will be pleased to help. Additionally, Daxun boasts a certified testing laboratory.
Technical Support
17-4 stainless steel rod The purchase order shall include quantity, PSL grade, type or category, API5L reference, diameter, finish, length and any applicable attachments or additional requirements relating to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface finish or end finish. Bars are solution bright annealed.
347-347H UNS S34700 Stainless Steel pipe and tube Features
Daxun Alloy Let your brand improve rapidly
- Gallery
- SIZE
- Surface finish
| Types | Out diameter | Sizes | Length |
| NB Sizes (in stock) | .0035” ~ 20” | 1/8″, 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 1″, 1.25″, 1.5″, 2″, 2.5″, 3″, 4″, 5″, 6″etc | Cut to length |
| Stainless Steel 347-347H UNS S34700 Seamless Tube (Custom Sizes) | 6.35 mm OD To 508 mm OD | As per requirement | Cut to length |
| Stainless Steel 347-347H UNS S34700 Welded Tube (ERW Tube) (in Stock + Custom Sizes) | 6.35 mm OD To 1219 mm OD | As per requirement | Cut to length |
| Surface Finish | Internal Surface(ID) | Exterbal Surface(OD) | |||
| Roughness Average(RA) | Roughness Average(RA) | ||||
| μ inch | μm | μ inch | μm | ||
| AP | Annealed & Pickled | Not defined | Not defined | 40 or Not defined | 1.0 or Not defined |
| BA | Beight Annealed | 40,32,25,20 | 1.0,0.8,0.6,0.5 | 32 | 0.8 |
| MP | Mechanical Polish | 40,32,25,20 | 1.0,0.8,0.6,0.5 | 32 | 0.8 |
| EP | Electro Polish | 15,10,7,5 | 0.38,0.25,0.20;0.13 | 32 | 0.8 |
The surface and shape of 347-347H UNS S34700 stainless steel tube (6)
-
Stainless steel square tubes are suitable for building decoration and structure, and have corrosion resistance and strength.
-
Oval stainless steel tubing is an ideal alternative to standard round tubes for decorative applications. It is also available with slit or mill edges.
-
Polished stainless steel pipes are suitable for interior decoration, such as stair railings and structural supports.
-
Stainless steel seamless pipes are suitable for oil pipelines, clean pipelines, water treatment pipelines, etc.
-
Stainless steel welded pipes are suitable for pipelines under conventional pressure and have ultra-thin thickness.
-
Bright annealed stainless steel tubes are subjected to bright annealing process to make the tube wall achieve a bright effect.
Information available for reference and download
Daxun is a trustworthy stainless steel rod and bar manufacturer
As a professional manufacturer, Daxun ensures that all the products we produce are of high quality. Therefore, we ensure that all stainless rod are certified by ISO9001, SGS, CE, OQC and more international quality standards.We also have strict quality control to ensure that the 17-4 Stainless Steel Rod have less defects. At Daxun, rest assured that all products are durable, high quality and high performance.
Recent hot case projects and products
Related Products (10)
We can provide 17-4 Stainless Steel Rod samples for you to check the quality. Sample is free and you just pay the freight.
We’ve exported to more than 42 countries, such as Canada, Chile, Kuwait, Germany, South Korea, Saudi Arabia, Singapore etc.
Our MOQ is 1 ton for 17-4 Stainless Steel Rod.
Trial orders can be delivered within a week. For regular orders, it takes two weeks roughly.