-
-
-
Girgaon, Mumbai - 400004
Stainless Steel 316H Seamless Tubes Manufacturer in India
What Are Stainless Steel 316H Seamless Tubes?
Stainless Steel 316H Seamless Tubes are high-carbon austenitic stainless steel tubes developed for applications requiring corrosion resistance together with improved strength during elevated-temperature service. Grade 316H is identified by UNS S31609 and belongs to the 316 family of molybdenum-bearing stainless steels.
The higher controlled carbon content of 316H provides enhanced high-temperature strength, creep resistance and stress-rupture performance. Chromium, nickel and molybdenum in the alloy contribute to resistance against general corrosion, pitting and crevice corrosion, making the grade suitable for demanding process and heat-transfer environments.
These seamless tubes are manufactured without a longitudinal welded joint and can be supplied according to applicable ASTM and ASME specifications. Common requirements include ASTM A213 and ASME SA213, with dimensions selected according to outside diameter, wall thickness, schedule, length and surface finish.
Stainless Steel 316H Seamless Tubes are used in heat exchangers, refinery equipment, petrochemical systems, chemical processing units, power-generation equipment and high-temperature process applications where mechanical stability and corrosion resistance are required.
Kamal Steels is a Manufacturer and Stockist of Stainless Steel 316H Seamless Tubes, supplying different dimensions, finishes and customized lengths for domestic and international industrial requirements with suitable material and inspection documentation.
Table of Contents
- Stainless Steel 316H Seamless Tube Specifications
- Stainless Steel 316H Seamless Tube Size Chart
- Stainless Steel 316H Seamless Tube Standards
- Stainless Steel 316H Seamless Tube Features
- Stainless Steel 316H Chemical Composition
- Stainless Steel 316H Mechanical Properties
- Stainless Steel 316H Seamless Tube Applications
- Industries Using Stainless Steel 316H Seamless Tubes
- Frequently Asked Questions
Stainless Steel 316H Seamless Tube Specifications
| Specification | Stainless Steel 316H Seamless Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 316H |
| UNS | S31609 |
| Tube Type | Seamless |
| ASTM Standard | ASTM A213, Applicable ASTM Specifications |
| ASME Standard | ASME SA213, Applicable ASME Specifications |
| Outside Diameter | As per requirement |
| Wall Thickness | As per requirement |
| Schedule | As required |
| Length | Random, Fixed or Customized |
| Finish | Annealed, Pickled, Bright Annealed, Polished or As required |
| Form | Round Tube |
Stainless Steel 316H Seamless Tube Size Chart
Stainless Steel 316H Seamless Tubes are available in different outside diameters, wall thicknesses and lengths according to application and project requirements.
| Tube Size | Outside Diameter (mm) | Wall Thickness | Length |
|---|---|---|---|
| 1/2" | 12.70 | As required | As required |
| 3/4" | 19.05 | As required | As required |
| 1" | 25.40 | As required | As required |
| 1-1/2" | 38.10 | As required | As required |
| 2" | 50.80 | As required | As required |
| 3" | 76.20 | As required | As required |
| 4" | 101.60 | As required | As required |
| 6" | 152.40 | As required | As required |
| 8" | 203.20 | As required | As required |
Stainless Steel 316H Seamless Tube Standards
| Standard | Application / Product Requirement |
|---|---|
| ASTM A213 | Seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes |
| ASTM A269 | Austenitic stainless steel tubing for general corrosion-resisting service, where applicable |
| ASME SA213 | Applicable seamless ferritic and austenitic alloy-steel tubing requirements |
| ASME SA269 | Applicable austenitic stainless steel tubing requirements for general service |
Stainless Steel 316H Seamless Tube Features
- Enhanced strength at elevated temperatures
- Improved creep and stress-rupture resistance
- Good general corrosion resistance
- Resistance to pitting and crevice corrosion
- Suitable for high-temperature service
- Good performance in chloride-bearing environments
- Good toughness and ductility
- Suitable for pressure and heat-transfer equipment
- Molybdenum-bearing austenitic stainless steel
- Available in various sizes and finishes
Stainless Steel 316H Chemical Composition
| Element | Composition (%) |
|---|---|
| Chromium | 16.0 - 18.0 |
| Nickel | 10.0 - 14.0 |
| Molybdenum | 2.0 - 3.0 |
| Carbon | 0.04 - 0.10 |
| Manganese | 2.00 max. |
| Silicon | 0.75 max. |
| Phosphorus | 0.045 max. |
| Sulfur | 0.030 max. |
| Iron | Balance |
Stainless Steel 316H Mechanical Properties
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 515 MPa min. |
| Yield Strength | 205 MPa min. |
| Elongation | 35% min. |
| Density | Approx. 8.0 g/cm³ |
Note: Final mechanical requirements should be verified against the applicable ASTM or ASME product specification and material test certificate.
Stainless Steel 316H Seamless Tube Applications
Heat Exchangers
Used in heat-transfer equipment exposed to elevated temperatures and corrosive conditions.
Petrochemical Equipment
Applied in process systems requiring high-temperature strength and corrosion resistance.
Chemical Processing
Suitable for equipment handling corrosive chemicals under demanding operating conditions.
Refinery Systems
Used in selected refinery equipment exposed to heat and aggressive process media.
Power Generation
Used in high-temperature process and heat-transfer equipment.
Process Equipment
Selected for industrial equipment requiring elevated-temperature stainless steel tubing.
Industries Using Stainless Steel 316H Seamless Tubes
Petrochemical Industry
Used in high-temperature process and fluid-handling systems.
Chemical Industry
Applied in corrosive process equipment operating under demanding conditions.
Refining Industry
Selected for process equipment exposed to elevated temperatures and corrosive media.
Power Industry
Used in heat-transfer and high-temperature process applications.
Engineering Industry
Used for specialized equipment requiring high-temperature stainless steel tubing.
Process Equipment Industry
Applied where strength and corrosion resistance are required during thermal service.
Frequently Asked Questions
Stainless Steel 316H Seamless Tubes are high-carbon austenitic stainless steel tubes manufactured from Stainless Steel 316H (UNS S31609 / WNR 1.4919). They are designed for applications requiring excellent corrosion resistance and superior high-temperature strength.
Our Stainless Steel 316H Seamless Tubes are manufactured according to ASTM A213, ASTM A269, ASME SA213, and ASME SA269 international standards.
SS 316H Seamless Tubes provide excellent corrosion resistance, improved creep strength, superior oxidation resistance, excellent mechanical properties at elevated temperatures, and long service life.
They are widely used in boilers, superheaters, heat exchangers, petrochemical plants, refineries, chemical processing industries, offshore installations, and power generation facilities.
SS 316H Seamless Tubes are available in various outside diameters, wall thicknesses, schedules, surface finishes, and custom cut lengths to meet diverse industrial requirements.
Each tube undergoes Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Positive Material Identification (PMI), Chemical Analysis, Mechanical Testing, Flattening Test, Flaring Test, Intergranular Corrosion (IGC) Testing, and Dimensional Inspection.
The higher carbon content of Stainless Steel 316H improves creep strength and mechanical stability during prolonged elevated-temperature service, making it ideal for high-temperature industrial equipment.
Yes. Every shipment includes EN 10204 3.1 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.
Yes. Kamal Steels exports Stainless Steel 316H Seamless Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 316H Seamless Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical high-temperature industrial applications.