Walid Stainless, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-performance stainless steel tubing for industrial and high-temperature applications. Their Stainless Steel 310H Tubing is designed for environments requiring superior strength and oxidation resistance at elevated temperatures. With higher carbon content than standard 310, it provides improved creep and stress rupture resistance while maintaining corrosion stability. Manufactured under strict quality control, Walid Stainless ensures precise dimensions, smooth finishes, and reliable mechanical performance. Customers rely on Stainless Steel 310H Tubing for long-term durability, safety, and consistent operation in critical high-temperature industrial systems.
Stainless Steel 310H Tubing is an austenitic stainless steel alloy containing approximately 24–26% chromium, 19–22% nickel, and higher carbon content for enhanced high-temperature strength. This composition provides excellent resistance to oxidation, scaling, and thermal fatigue at temperatures up to 1150°C. The tubing typically exhibits tensile strength between 520–650 MPa and hardness around 170–200 HB. Its austenitic structure ensures excellent toughness, creep resistance, and dimensional stability under continuous high-temperature service.
| 310H Stainless Steel Tube Finish | Polished, BA (Bright & Annealed),AP (Annealed & Pickled), MF |
|---|---|
| Stainless Steel 310H Tube Standards | ASTM A213,ASTM A269, ASTM A249,ASME SA213,ASME SA269, ASME SA249, NACE MR0175/ISO 15156, PED 97/23/EC,EN 10216-5 TC1 / TC2, AD 2000 |
| Stainless Steel 310H Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| 310H stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| Marking | All 310H Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| Stainless Steel 310H Welded Tube Size | 6.35 mm OD To 152 mm OD |
| Stainless Steel 310H tubing wall thickness | 0.020″ –0.220″, (special wall thicknesses available) |
| Stainless Steel 310H tube Form | Straight or ‘U’ bent Tubes, Round,Boiler, Coil , LSAW Tubes, Square, Hydraulic, Rectangular, Hollow Etc. |
| Stainless Steel 310H Tube Type | EFW, Seamless , Fabricated, ERW, Welded |
| SS 310H tube Length | Single Random , Standard & Cut length , Double Random |
| Non-Electropolished | (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems, (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity |
| I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
| 310H 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 |
| Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| 310H stainless steel tubing Test Certificate | Laboratory Test Certificate from Govt. Approved Lab. Manufacturer Test Certificate according to EN 10204 3.1 B Under Third Party Inspection |
| Electropolished | (EP) Electropolished for Ultra High Purity Systems |
| 310H stainless steel tubingApplication | Oil Tube , Boiler and Heatexchange , Gas Tube, Fluid Tuber |
| JIS | 8A to 250A |
| Specialize in | Stainless Steel 310H Capillary Tube & Other Odd Size Stainless Steel 310H Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition Stainless Steel 310H Heat Exchanger & Condenser Tubes Stainless Steel 310H 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 310H Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 310H | min. | 0.04 | – | – | – | – | 24.0 | – | 19.0 | – |
| max. | 0.10 | 2.0 | 1.0 | 0.045 | 0.030 | 26.0 | 21.0 | – | ||
| 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 | ||||
| 310H | 515 | 205 | 40 | 95 | 217 |
Contact us to get a quick quote for your requirement.
We ensures that all stainless steel 310H tubing is rigorously tested to meet international quality standards, including mechanical, chemical and thickness analysis. Relevant certifications, such as Mill Test Certificates (MTC), EN 10204-3.1, and third party inspection reports are included with each tube, to ensure efficiency and reliability
Stainless Steel 310H Seamless Tubing is available in sizes ranging from 1/8″ to 24″ in diameter. This type of tubing offers exceptional corrosion resistance, especially in high-temperature environments. Its seamless construction ensures uniform strength and reliability.
Stainless Steel 310H Welded Tubing comes in sizes from 1/8″ to 48″ in diameter, providing excellent corrosion resistance. The welded construction allows for cost-effective production while maintaining high strength and durability. It is suitable for applications requiring precise dimensions.
Stainless Steel 310H Heat Exchanger Tubes are designed with sizes ranging from 1/4″ to 2″ in diameter. These tubes offer superior corrosion resistance and thermal conductivity, making them ideal for heat exchanger applications. They perform well in high-temperature and high-pressure environments.
Stainless Steel 310H Instrumentation Tubing is available in sizes from 1/8″ to 1″ in diameter. It provides excellent corrosion resistance and is used in precise instrumentation and control systems. The tubing ensures consistent performance in critical environments.
Stainless Steel 310H Boiler Tubes come in sizes ranging from 1/2″ to 5″ in diameter. They offer high corrosion resistance and are designed to withstand high pressures and temperatures in boiler applications. The tubes ensure efficient heat transfer and long-term durability.
Stainless Steel 310H U-Tubes are available in diameters from 1/4″ to 2″. These tubes provide excellent corrosion resistance and are shaped into U-bends for use in heat exchangers. They are ideal for compact heat exchanger designs and efficient thermal transfer.
Stainless Steel 310H Condenser Tubes range from 1/4″ to 2″ in diameter, offering superior corrosion resistance. These tubes are used in condenser systems to efficiently transfer heat. They perform well in both high-temperature and corrosive environments.
Stainless Steel 310H Fin Tubes come in sizes from 1/4″ to 2″ in diameter. They are designed with fins to enhance heat transfer efficiency and provide excellent corrosion resistance. These tubes are ideal for use in air-cooled heat exchangers and other thermal systems.
Stainless Steel 310H Tubing is widely used in industries operating under extreme heat and thermal stress. Typical applications include furnace components, heat exchangers, kiln linings, petrochemical processing units, and high-temperature piping systems. Its ability to maintain strength, resist oxidation, and withstand thermal cycling makes it ideal for welded assemblies and long-term elevated-temperature service. Engineers and maintenance professionals rely on 310H Tubing for durability, safety, and minimal maintenance. Walid Stainless ensures each tube meets strict quality standards, providing reliable and consistent performance in industrial, chemical, and high-temperature applications.
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