Stainless Steel 316H Seamless Tubes

Manufacturer & Stockist of Stainless Steel 316H Seamless Tubes

Kamal Steels is a leading Manufacturer and Stockist of Stainless Steel 316H Seamless Tubes, offering premium-quality seamless tubing solutions for industries operating under high-temperature and corrosive service conditions. Manufactured from Stainless Steel 316H (UNS S31609 / WNR 1.4919), our seamless tubes conform to ASTM A213, ASTM A269, and ASME SA213 standards, providing excellent dimensional accuracy, superior mechanical strength, and outstanding resistance to oxidation and corrosion. The higher carbon content of SS 316H enhances creep strength and elevated-temperature performance, making it ideal for prolonged service above 500°C.

Our SS 316H Seamless Tubes are manufactured using advanced cold drawing, solution annealing, and precision finishing processes to produce a completely weld-free structure capable of handling high pressure and severe thermal conditions. These tubes offer excellent resistance to pitting, crevice corrosion, oxidation, and high-temperature deformation while maintaining superior mechanical stability. Stainless Steel 316H Seamless Tubes are extensively used in boilers, superheaters, heat exchangers, petrochemical plants, refineries, power generation facilities, chemical processing plants and offshore installations where both corrosion resistance and elevated-temperature strength are critical.

At Kamal Steels, we maintain a comprehensive inventory of ASTM A213 TP316H Seamless Tubes in various outside diameters, wall thicknesses, surface finishes, and custom lengths to meet urgent domestic and international project requirements. Every tube undergoes stringent quality inspections, including Hydrostatic Testing, Positive Material Identification (PMI), Ultrasonic Testing (UT), Eddy Current Testing (ECT), Mechanical Testing, and Dimensional Inspection before dispatch. With certified quality, competitive pricing, export-standard packaging, and prompt worldwide delivery, Kamal Steels has established itself as a trusted manufacturer and supplier of Stainless Steel 316H Seamless Tubes for critical high-temperature industrial applications.

Stainless Steel 316H Seamless Tubes

Why Choose Stainless Steel 316H Seamless Tubes?

Stainless Steel 316H Seamless Tubes are specifically designed for applications requiring excellent corrosion resistance together with superior mechanical strength at elevated temperatures. As the high-carbon version of Stainless Steel 316, Grade 316H offers improved creep strength, enhanced tensile properties, and excellent structural stability during prolonged high-temperature service. The seamless construction eliminates welded joints, ensuring higher pressure-bearing capability, leak-free performance, and outstanding reliability in demanding industrial environments.

One of the major advantages of SS 316H Seamless Tubes is their excellent resistance to pitting, crevice corrosion, chloride attack, oxidation, and thermal fatigue while maintaining mechanical integrity under continuous high-temperature operating conditions. These tubes are widely used in boilers, superheaters, heat exchangers, petrochemical plants, refineries, chemical processing facilities, offshore installations, and power generation industries where both corrosion resistance and elevated-temperature strength are essential.

At Kamal Steels, we manufacture and supply premium-quality ASTM A213 TP316H Seamless Tubes produced according to international ASTM and ASME standards. Every tube undergoes comprehensive quality inspections, including Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Positive Material Identification (PMI), Mechanical Testing, Chemical Analysis, and Dimensional Inspection to ensure exceptional product quality, reliability, and complete customer satisfaction.

Features & Benefits of Stainless Steel 316H Seamless Tubes

  • Excellent corrosion resistance in aggressive chemical environments.
  • Higher carbon content provides superior creep strength.
  • Outstanding resistance to pitting and crevice corrosion.
  • Excellent oxidation resistance at elevated temperatures.
  • Seamless construction for leak-free, high-pressure performance.
  • Superior mechanical strength during prolonged high-temperature service.
  • Good weldability and fabrication characteristics.
  • Reliable long-term performance under severe operating conditions.
  • Available in multiple outside diameters and wall thicknesses.
  • Supplied in Annealed & Pickled (AP), Bright Annealed (BA), and Polished finishes.
  • EN 10204 3.1 Mill Test Certificates with complete material traceability.
  • Ideal for boilers, superheaters, heat exchangers, petrochemical plants, refineries, power generation, offshore, and chemical processing industries.

Stainless Steel 316H Seamless Tube Specifications

Kamal Steels Manufacturer and Stockist Stainless Steel 316H Seamless Tubes in accordance with internationally recognized ASTM, ASME, and EN standards. Manufactured from premium-quality Stainless Steel 316H (UNS S31609 / WNR 1.4919), these seamless tubes provide outstanding corrosion resistance, superior high-temperature strength, excellent creep resistance, and exceptional dimensional accuracy. Our SS 316H Seamless Tubes are available in various outside diameters, wall thicknesses, surface finishes, and custom lengths to meet the demanding requirements of boilers, superheaters, heat exchangers, petrochemical plants, refineries, power generation facilities, offshore platforms, and chemical processing industries.

Product Stainless Steel 316H Seamless Tubes
Material Grade Stainless Steel 316H (UNS S31609 / WNR 1.4919)
Specifications ASTM A213, ASTM A269, ASME SA213, ASME SA269
Tube Type Seamless
Outside Diameter 6.35 mm to 101.6 mm (1/4" to 4")
Wall Thickness 0.5 mm to 12 mm
Length Single Random, Double Random, 6 Meter & Custom Cut Lengths
Surface Finish Annealed & Pickled (AP), Bright Annealed (BA), Polished
End Finish Plain End, Beveled End
Certification EN 10204 3.1 Mill Test Certificate (MTC)

Chemical Composition of Stainless Steel 316H

Element Composition (%)
Carbon (C)0.04 – 0.10
Chromium (Cr)16.00 – 18.00
Nickel (Ni)10.00 – 14.00
Molybdenum (Mo)2.00 – 3.00
Manganese (Mn)2.00 Max
Silicon (Si)1.00 Max
Phosphorus (P)0.045 Max
Sulfur (S)0.030 Max
Iron (Fe)Balance

Mechanical Properties of Stainless Steel 316H Seamless Tubes

Property Value
Tensile Strength 515 MPa Minimum
Yield Strength 205 MPa Minimum
Elongation 40% Minimum
Hardness 95 HRB Maximum
Density 8.00 g/cm³

Equivalent Grades of Stainless Steel 316H

Standard Equivalent Grade
UNS S31609
Werkstoff No. 1.4919
EN X6CrNiMo17-12-2
AISI 316H
ISO X6CrNiMo17-12-2

Applications of Stainless Steel 316H Seamless Tubes

Stainless Steel 316H Seamless Tubes are extensively used in industries requiring excellent corrosion resistance together with superior mechanical strength at elevated temperatures. Their higher carbon content improves creep resistance and high-temperature performance, while the seamless construction provides exceptional pressure-bearing capability, leak-free operation, and long-term structural integrity. These properties make SS 316H Seamless Tubes an ideal solution for critical industrial applications operating under severe thermal and corrosive conditions.

  • Boilers & Superheaters
  • Heat Exchangers & Condensers
  • Petrochemical Plants
  • Oil & Gas Processing Facilities
  • Refineries
  • Chemical Processing Industries
  • Power Generation Plants
  • Marine & Offshore Industries
  • Thermal Processing Equipment
  • Pressure Instrumentation Systems
  • Industrial Process Piping
  • General Heavy Engineering Applications

Inspection & Testing of Stainless Steel 316H Seamless Tubes

At Kamal Steels, every Stainless Steel 316H Seamless Tube undergoes comprehensive inspection and testing to ensure compliance with ASTM, ASME, and international quality standards. Each tube is carefully inspected for chemical composition, dimensional accuracy, mechanical properties, and overall product integrity before dispatch.

  • Hydrostatic Pressure Testing
  • Ultrasonic Testing (UT)
  • Eddy Current Testing (ECT)
  • Positive Material Identification (PMI)
  • Chemical Composition Analysis
  • Mechanical Property Testing
  • Flattening Test
  • Flaring Test
  • Intergranular Corrosion (IGC) Testing
  • Dimensional & Visual Inspection
  • Third-Party Inspection Available on Request

Packaging, Marking & Documentation

Kamal Steels follows international export packaging standards to ensure that SS 316H Seamless Tubes reach customers safely without damage during transportation and storage. Tubes are fitted with protective plastic end caps, securely bundled, wrapped with protective materials, and packed in export-quality wooden boxes, crates, or pallets to prevent contamination, moisture and mechanical damage during transit.

Each seamless tube is permanently marked with the material grade, ASTM specification, heat number, size, manufacturer's identification, and batch details for complete material traceability. Every shipment is supplied with EN 10204 3.1 Mill Test Certificates, inspection reports, packing lists, commercial invoices, certificates of compliance and third-party inspection certificates whenever requested, ensuring complete documentation for domestic as well as international industrial projects.

Why Choose Kamal Steels for Stainless Steel 316H Seamless Tubes?

Kamal Steels is a trusted manufacturer, supplier, stockist, and exporter of Stainless Steel 316H Seamless Tubes, supplying premium-quality seamless tubing solutions for boilers, superheaters, heat exchangers, petrochemical plants, refineries, chemical processing facilities, offshore installations, and power generation industries. Manufactured according to ASTM and ASME standards, our SS 316H Seamless Tubes provide exceptional corrosion resistance, superior high-temperature strength, excellent creep resistance, outstanding dimensional accuracy, and dependable long-term performance in demanding industrial environments.

We maintain a comprehensive inventory of ASTM A213 TP316H Seamless Tubes in various outside diameters, wall thicknesses, surface finishes, and custom lengths to meet urgent domestic and international project requirements. Every tube undergoes comprehensive quality inspections, including Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Positive Material Identification (PMI), Mechanical Testing, Chemical Analysis, Flattening Tests, and Dimensional Inspection to ensure complete compliance with international quality standards and customer specifications.

With decades of manufacturing expertise, ready stock availability, competitive pricing, certified quality, export-standard packaging, and a strong global supply network, Kamal Steels has become the preferred manufacturer and supplier of Stainless Steel 316H Seamless Tubes across international markets. Our commitment to quality, technical support, prompt delivery, and complete documentation enables us to provide dependable seamless tubing solutions for the most demanding high-temperature industrial applications.

Why Industries Trust Kamal Steels

  • Leading manufacturer, supplier, stockist, and exporter of SS 316H Seamless Tubes.
  • Large ready stock for immediate domestic and international supply.
  • Manufactured according to ASTM A213, ASTM A269, and ASME standards.
  • Available in multiple sizes, wall thicknesses, and surface finishes.
  • Comprehensive quality inspection before every shipment.
  • EN 10204 3.1 Mill Test Certificates with complete material traceability.
  • Competitive pricing with consistent product availability.
  • Export-standard packaging for safe worldwide transportation.
  • Technical support for high-temperature material selection.
  • Prompt worldwide delivery with complete export documentation.

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.