Stainless Steel 310H Seamless Pipes Manufacturer in India

What are Stainless Steel 310H Seamless Pipe?

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.

Stainless Steel 304L Seamless Pipe Specifications

Table of Contents

Stainless Steel 310H Seamless Pipe 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

Stainless Steel 310H Seamless Pipe Size Chart

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.

Stainless Steel 310H Seamless Pipe Weight Chart

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.

Stainless Steel 310H Seamless Pipe Schedule Chart

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

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

SS 310H Seamless Pipe vs Welded Pipe

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 Pipe Chemical Composition

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 Pipe Mechanical Properties

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 Pipe Applications

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.

Industries Using Stainless Steel 310H Seamless Pipes

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.

Frequently Asked Questions

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.

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