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Stainless Steel 310H Seamless Pipes are high-carbon austenitic stainless steel pipes designed for high-temperature applications where strength retention, oxidation resistance, and reliable performance are required. The higher carbon content of Grade 310H makes it suitable for applications involving prolonged exposure to elevated temperatures and demanding thermal conditions.
Manufactured without a longitudinal weld seam, Stainless Steel 310H Seamless Pipes provide consistent construction for pressure and process piping systems. Their high chromium and nickel content contributes to resistance against oxidation and corrosion, while the 310H grade is particularly selected for high-temperature service requiring improved strength compared with standard austenitic stainless steel grades.
Stainless Steel 310H Seamless Pipes are commonly used in industrial furnaces, heat-treatment equipment, petrochemical processing systems, refinery units, power generation equipment, and other applications exposed to elevated temperatures. They are available in different outside diameters, wall thicknesses, schedules, and lengths according to applicable standards and project requirements.
Kamal Steels is a Stainless Steel 310H Seamless Pipes Manufacturer & Stockist in India, supplying SS 310H Seamless Pipes in standard and customized sizes, schedules, wall thicknesses, and lengths. Products can be supplied with applicable testing, inspection, material certificates, and documentation according to customer and project specifications.
| Specification | Details |
|---|---|
| Product Name | Stainless Steel 310H Seamless Pipe |
| Grade | SS 310H / Type 310H |
| UNS | S31009 |
| EN Grade | 1.4843 |
| Material Type | Austenitic Stainless Steel |
| Manufacturing Process | Seamless |
| Product Standard | ASTM A312 |
| ASME Specification | ASME SA312 |
| Size Range | 1/8" to 24" and above as required |
| Schedule | 5S, 10S, 40S, 80S, 160 and other schedules |
| Wall Thickness | As per applicable schedule or specified requirement |
| Length | Random, Double Random or Fixed Length |
| End Type | Plain End, Bevelled End or Threaded End as required |
| Surface Finish | Pickled & Passivated, Annealed, Bright Annealed or Polished |
| Heat Treatment | Solution Annealed and Rapidly Cooled as specified by the applicable standard |
| Testing | Hydrostatic, PMI, Ultrasonic, Flattening, Flaring and other applicable tests |
| Inspection | Third Party Inspection available as required |
| Certification | EN 10204 3.1 / Material Test Certificate (MTC) |
| Packaging | Bundles, Wooden Cases, Wooden Boxes, Plastic End Caps and Export Packing |
SS 310H Seamless Pipes are available in a broad range of nominal pipe sizes and outside diameters to accommodate different industrial piping systems. Selection of the appropriate size depends on flow requirements, operating pressure, temperature, wall thickness and applicable piping specifications.
| Nominal Pipe Size | Outside Diameter | Common Applications |
|---|---|---|
| 1/2 Inch | 21.3 mm | Instrumentation and small-bore piping |
| 1 Inch | 33.4 mm | Process and utility lines |
| 2 Inch | 60.3 mm | Industrial process piping |
| 3 Inch | 88.9 mm | Process and equipment connections |
| 4 Inch | 114.3 mm | Industrial piping systems |
| 6 Inch | 168.3 mm | Process and utility piping |
| 8 Inch | 219.1 mm | Large process piping systems |
| 10 Inch | 273.1 mm | Plant and industrial piping |
| 12 Inch | 323.9 mm | Large-diameter process lines |
Additional sizes and non-standard dimensions can be considered based on manufacturing capability, applicable standards and project requirements.
The weight of Stainless Steel 310H Seamless Pipe depends primarily on outside diameter, wall thickness, pipe length and material density. Heavier wall pipes generally have greater weight per metre than thinner schedules of the same nominal size.
| Pipe Size | Outside Diameter | Example Wall Thickness | Weight Consideration |
|---|---|---|---|
| 1 Inch | 33.4 mm | 3.38 mm | Depends on actual length and density |
| 2 Inch | 60.3 mm | 3.91 mm | Depends on actual length and density |
| 3 Inch | 88.9 mm | 5.49 mm | Depends on actual length and density |
| 4 Inch | 114.3 mm | 6.02 mm | Depends on actual length and density |
| 6 Inch | 168.3 mm | 7.11 mm | Depends on actual length and density |
Actual pipe weight should be confirmed from the specified dimensions, schedule, length and applicable dimensional standard. Kamal Steels can provide dimensional and weight details according to the required product specification.
Pipe schedules identify standardized wall thickness ranges for different nominal pipe sizes. SS 310H Seamless Pipes can be supplied in commonly requested schedules, subject to the applicable size and manufacturing specification.
| Schedule | Typical Availability | General Use |
|---|---|---|
| SCH 5S | Selected sizes | Light-wall piping applications |
| SCH 10S | Common sizes | Light to moderate service |
| SCH 40S | Common sizes | General industrial piping |
| SCH 80S | Common sizes | Higher wall thickness requirements |
| SCH 160 | Selected sizes | Heavy-wall service applications |
Schedule availability varies with nominal pipe size and applicable specification. The required schedule should be selected based on design pressure, temperature, corrosion conditions, mechanical requirements and project standards.
ASTM A312 TP310H Seamless Pipe is manufactured from Type 310H austenitic stainless steel for applications requiring resistance to corrosion and oxidation together with useful strength at elevated temperatures. The specification covers seamless, welded and heavily cold-worked austenitic stainless steel pipe intended for specified corrosive and high-temperature service.
ASTM A312 TP310H pipes can be supplied in different nominal sizes, wall thicknesses, schedules and lengths according to the applicable requirements. The corresponding ASME designation is commonly referenced as SA312 when the material is required for applications governed by the applicable ASME Code.
| ASTM Grade | TP310H |
|---|---|
| UNS | S31009 |
| ASME Specification | SA312 |
| Product Form | Seamless Pipe |
| Material Type | Austenitic Stainless Steel |
| Primary Characteristic | High-temperature strength and oxidation resistance |
Both seamless and welded stainless steel 310H pipes can be used in industrial applications, but their manufacturing methods are different. A seamless pipe is produced from a solid billet without a longitudinal welded joint, whereas a welded pipe is formed from stainless steel strip or plate and joined along the seam.
| Feature | SS 310H Seamless Pipe | SS 310H Welded Pipe |
|---|---|---|
| Manufacturing | Produced from solid billet | Produced from strip or plate with a welded seam |
| Longitudinal Weld | No longitudinal weld | Contains a welded seam |
| Size Range | Commonly selected for seamless pipe sizes | Can be advantageous for larger diameters |
| Application | Specified pressure, process and high-temperature services | Process, fabrication and industrial piping applications |
| Selection | Based on design and applicable specification | Based on design, weld requirements and applicable specification |
The choice between seamless and welded construction should be based on pressure, temperature, pipe dimensions, fabrication requirements, inspection requirements and the governing project specification rather than on construction type alone.
Stainless Steel 310H Seamless Pipes contain high levels of chromium and nickel along with a higher controlled carbon content. This chemical composition provides good oxidation resistance, corrosion resistance, and improved strength during prolonged exposure to elevated temperatures. The grade is particularly suited for high-temperature industrial environments.
| Element | Composition (%) |
|---|---|
| Carbon | 0.04 - 0.10 |
| Chromium | 24.0 - 26.0 |
| Nickel | 19.0 - 22.0 |
| Manganese | 2.00 max. |
| Silicon | 1.50 max. |
| Phosphorus | 0.045 max. |
| Sulfur | 0.030 max. |
The chemical composition should be verified according to the applicable ASTM or ASME specification and the material test certificate supplied with the Stainless Steel 310H Seamless Pipes.
Stainless Steel 310H Seamless Pipes provide good tensile strength, yield strength, and ductility for demanding industrial piping applications. The higher carbon content of 310H contributes to its suitability for elevated-temperature service where strength retention is important.
| Mechanical Property | Minimum Requirement |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 40% |
Mechanical properties may vary depending on the applicable specification, product dimensions, heat-treatment condition, and testing requirements. Final values should be confirmed against the relevant material standard and material test certificate.
Stainless Steel 310H Seamless Pipes are used in applications where high-temperature strength, oxidation resistance, and dependable performance under prolonged thermal exposure are required. Their seamless construction makes them suitable for various pressure and process piping systems operating under demanding conditions.
| Application | Typical Use |
|---|---|
| Industrial Furnaces | High-temperature piping and process gas systems. |
| Heat Treatment Equipment | Piping exposed to elevated temperatures during thermal processing. |
| Petrochemical Equipment | High-temperature process piping and associated equipment. |
| Refinery Systems | Selected high-temperature process and utility piping. |
| Heat Exchangers | High-temperature heat-transfer systems and process equipment. |
| Power Generation Equipment | Selected high-temperature process and combustion systems. |
| Thermal Processing Systems | Piping and components exposed to prolonged elevated temperatures. |
Stainless Steel 310H Seamless Pipes are used across industries that require piping materials capable of maintaining strength and resisting oxidation under elevated-temperature operating conditions. The grade is particularly suitable for thermal processing, furnace, and high-temperature process environments.
| Industry | Typical Applications |
|---|---|
| Petrochemical Industry | High-temperature process piping and thermal equipment. |
| Oil & Gas Industry | Selected high-temperature process and utility systems. |
| Power Generation Industry | High-temperature process and combustion-related systems. |
| Heat Treatment Industry | Furnaces, thermal processing equipment, and associated piping. |
| Steel & Metal Processing Industry | High-temperature furnace and metal-processing equipment. |
| Chemical Processing Industry | High-temperature process piping and equipment. |
| Industrial Engineering | High-temperature piping systems and fabricated equipment. |
Kamal Steels supplies Stainless Steel 310H Seamless Pipes in different sizes, schedules, wall thicknesses and lengths for industrial and high-temperature service requirements.
The suitability of 310H should be evaluated according to operating temperature, pressure, atmosphere, corrosion conditions, pipe dimensions and the applicable design or piping code. Kamal Steels supplies these products for domestic and international industrial requirements with support for applicable specifications, testing, documentation and export packaging.
Stainless Steel 310H Seamless Pipe is a high-temperature resistant austenitic stainless steel pipe with higher carbon content than SS 310S, designed for elevated temperature and creep-resistant applications.
ASTM A312 TP310H Seamless Pipe is manufactured according to ASTM A312 specifications and is widely used in high-temperature industrial applications.
The UNS designation for Stainless Steel 310H is UNS S31009.
SS 310H contains higher carbon content, providing improved creep strength and elevated-temperature performance, while SS 310S offers better weldability due to its lower carbon content.
SS 310H Seamless Pipes are used in furnaces, boilers, heat exchangers, petrochemical plants, refineries, thermal processing equipment and power generation facilities.
SS 310H Pipes provide excellent oxidation resistance and can perform effectively in temperatures up to approximately 1100°C.
These pipes are available from 1/8" NB to 24" NB in schedules ranging from SCH 5S to SCH XXS.
Yes, all Stainless Steel 310H Seamless Pipes can be supplied with EN 10204 3.1 Mill Test Certificates and inspection reports.
Yes, Third Party Inspection (TPI) services can be arranged through approved inspection agencies upon customer request.
Kamal Steels offers ready stock, competitive pricing, quality-certified products, worldwide exports, technical support and fast delivery for all Stainless Steel 310H Seamless Pipe requirements.