Stainless Steel 310H Seamless Tubes are high-carbon austenitic stainless steel tubes developed for high-temperature applications where strength, oxidation resistance and structural stability are important. Grade 310H is identified by UNS S31009 and belongs to the 310 series of heat-resistant stainless steels.
The elevated chromium and nickel content of Stainless Steel 310H provides excellent resistance to oxidation and scaling at high temperatures, while the controlled higher carbon level contributes to improved creep and stress-rupture strength. This combination allows the tubes to perform reliably in demanding thermal environments.
Stainless Steel 310H Seamless Tubes are supplied according to applicable ASTM and ASME specifications. ASTM A213 and ASME SA213 are commonly associated with seamless austenitic stainless steel tubes for boiler, superheater and heat-exchanger applications. Tubes can be produced in different outside diameters, wall thicknesses, schedules, lengths and finishes.
These tubes are suitable for furnace equipment, heat exchangers, petrochemical processing units, power-generation systems, high-temperature process equipment, refinery facilities and thermal processing applications. Their high-temperature strength and oxidation resistance make them suitable for continuous service under severe thermal conditions.
Kamal Steels is a Manufacturer and Stockist of Stainless Steel 310H Seamless Tubes, offering different dimensions and customized requirements for industrial projects in India and overseas markets. Material certification and inspection documentation can be provided as required.
Annealed, Pickled, Bright Annealed, Polished or As required
Form
Round Tube
Stainless Steel 310H Seamless Tube Size Chart
Stainless Steel 310H Seamless Tubes can be supplied in different diameters and wall thicknesses to meet high-temperature heat-transfer, process and equipment 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 310H 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, where applicable
Stainless Steel 310H Seamless Tube Features
Excellent high-temperature oxidation resistance
High chromium and nickel content
Enhanced creep and stress-rupture strength
Good resistance to scaling at elevated temperatures
Suitable for prolonged thermal exposure
Good resistance to carburizing environments
Strong performance in furnace and thermal equipment
Good mechanical stability at elevated temperatures
Seamless construction for demanding applications
Available in various sizes and surface finishes
Stainless Steel 310H Chemical Composition
Element
Composition (%)
Chromium
24.0 - 26.0
Nickel
19.0 - 22.0
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 310H 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: Mechanical requirements should be confirmed against the applicable ASTM or ASME product specification and material test certificate.
Stainless Steel 310H Seamless Tube Applications
Furnace Equipment
Used for furnace components exposed to continuous high-temperature operating conditions.
Petrochemical Plants
Applied in selected process equipment requiring thermal stability and oxidation resistance.
Power Generation
Suitable for high-temperature process and heat-transfer equipment in power facilities.
Chemical Processing
Used in process systems where elevated temperatures and corrosive conditions occur together.
Heat Treatment Equipment
Selected for thermal processing equipment requiring resistance to oxidation and scaling.
Refinery Equipment
Used in suitable refinery applications involving high-temperature process conditions.
Industries Using Stainless Steel 310H Seamless Tubes
Petrochemical Industry
Uses 310H tubing in selected high-temperature process systems and equipment.
Heat Treatment Industry
Applied in furnaces and thermal-processing equipment operating at elevated temperatures.
Chemical Industry
Selected for process equipment exposed to heat and demanding chemical environments.
Power Industry
Used in high-temperature equipment and heat-transfer systems.
Refining Industry
Applied in appropriate refinery equipment subjected to elevated-temperature service.
Engineering Industry
Used for specialized thermal equipment requiring heat-resistant stainless steel tubing.
Frequently Asked Questions
Stainless Steel 310H Seamless Tubes are high-carbon, heat-resistant stainless steel tubes manufactured from Stainless Steel 310H (UNS S31009 / WNR 1.4845). They are specifically designed for prolonged service at elevated temperatures requiring excellent creep strength and oxidation resistance.
Our Stainless Steel 310H Seamless Tubes are manufactured according to ASTM A213, ASTM A269, ASME SA213, and ASME SA269 international standards.
SS 310H Seamless Tubes provide exceptional creep strength, excellent oxidation resistance, outstanding resistance to scaling and thermal fatigue, seamless construction and reliable performance during prolonged high-temperature service.
They are widely used in boilers, superheaters, industrial furnaces, heat exchangers, petrochemical plants, refineries, thermal processing equipment, power generation facilities, and chemical processing industries.
SS 310H 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 310H improves creep strength and high-temperature mechanical stability, making it suitable for continuous service under severe thermal conditions.
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 310H Seamless Tubes worldwide with export-standard packaging, complete documentation and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 310H 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.