Alloy Classification :
Titanium Stabilised Austenitic Stainless Steel
Alloy Classification :
Titanium Stabilised Austenitic Stainless Steel
Chromium Content :
17.0% – 19.0%
Nickel Content :
9.0% – 12.0%
Carbon Composition :
0.04% – 0.10% (High Carbon Grade)
In the rapidly growing industrial landscape of the UAE, selecting materials that can withstand extreme temperatures and demanding environments is essential. As a trusted SS 321H Pipes and Tubes Supplier in UAE, we provide premium-quality stainless steel solutions designed for superior performance in high-temperature and corrosive applications. Our products are widely used in oil & gas, petrochemical, power generation, and chemical industries, ensuring reliability, durability, and long-term operational efficiency.
What Are SS 321H Pipes and Tubes?
SS 321H pipes and tubes are titanium-stabilized austenitic stainless steel products with higher carbon content, enhancing their strength and creep resistance at elevated temperatures. Known as UNS S32109, this grade is specifically engineered for applications where thermal stability and oxidation resistance are critical.
Why Choose SS 321H Pipes and Tubes?
Excellent High-Temperature Performance
SS 321H pipes for high temperature applications offer enhanced creep strength and resistance to scaling, making them ideal for continuous service in elevated temperature environments.
Superior Corrosion and Oxidation Resistance
The titanium stabilization provides excellent SS 321H corrosion resistance and oxidation resistance, preventing intergranular corrosion during welding and high-temperature exposure.
Creep Resistance and Structural Stability
SS 321H creep resistance ensures long-term mechanical stability, especially in boilers and heat exchangers.
Versatile Industrial Applications
From SS 321H pipes for boiler systems to SS 321H pipes for oil and gas and chemical industry applications, this grade delivers dependable performance across sectors.
Why Use SS 321H Pipes?
When compared with other grades, SS 321H offers a unique balance of thermal stability, weldability, and durability, making it one of the best stainless steel for high temperature environments.
Applications of SS 321H Pipes and Tubes
SS 321H stainless steel products are widely used in:
SS 321H vs Other Stainless Steel Grades
Understanding material differences helps buyers make informed decisions:
|
Comparison |
Key Difference |
|
SS 321H vs SS 321 |
SS 321H has higher carbon content, offering improved strength at elevated temperatures. |
|
SS 321H vs SS 347 |
SS 347 provides niobium stabilization, while SS 321H is preferred for high-temperature creep resistance. |
|
SS 321H vs SS 316 |
SS 316 offers better general corrosion resistance, but SS 321H excels in high-temperature environments. |
|
SS 321H vs SS 310 |
SS 310 is suitable for extreme temperatures, whereas SS 321H provides better weldability and structural stability. |
SS 321H Pipes Price in UAE
The SS 321H pipes price in UAE varies depending on size, thickness, manufacturing type (seamless or welded), and quantity. Factors influencing the SS 321H pipe price per kg include raw material costs, certifications, and logistics.
Benefits of Choosing Us as Your SS 321H Supplier
KVN Steels is a leading SS 321H Pipes and Tubes Supplier in UAE, we offer:
✅ Certified Quality: Compliance with ASTM standards and global specifications.
✅ Comprehensive Product Range: Seamless, welded, ERW, and EFW options.
✅ Technical Expertise: Guidance in selecting the right material for your application.
✅ Competitive Pricing: Transparent and value-driven cost structure.
✅ Fast Delivery: Efficient logistics across UAE and the GCC.
✅ Global Export Capability: Trusted SS 321H pipes exporter for international projects.
Choosing a reliable SS 321H Pipes and Tubes Supplier in UAE is essential for ensuring the success of high-temperature industrial projects. With exceptional creep strength, oxidation resistance, and versatility, SS 321H stainless steel pipes and tubes provide a dependable solution for demanding environments.
By partnering with a trusted supplier, businesses can benefit from certified quality, competitive pricing, and timely delivery across the UAE and GCC. Whether for oil & gas, power generation, or chemical processing, SS 321H remains a strategic investment in performance and reliability.
| STANDARD | UNS | WNR. | EN | JIS |
|---|---|---|---|---|
| SS 321 | S32100 | 1.4541 | X6CrNiTi18-10 | SUS 321 |
| SS 321H | S32109 | 1.4878 | X12CrNiTi18-9 | SUS 321H |
SS 321/321H Seamless Pipes
SS 321/321H seamless pipes are titanium-stabilized, weld-free stainless steel pipes offering superior resistance to intergranular corrosion and excellent creep strength for high-temperature and high-pressure applications.
SS 321/321H Welded Pipes
SS 321/321H welded pipes are cost-effective stainless steel solutions with enhanced oxidation resistance and thermal stability, ideal for structural and process systems operating at elevated temperatures.
SS 321/321H EFW Pipes
SS 321/321H EFW (Electric Fusion Welded) pipes are large-diameter, heavy-duty stainless steel pipes designed for boilers, refineries, and power plants requiring exceptional high-temperature performance.
SS 321/321H Seamless Tubes
SS 321/321H seamless tubes are precision-engineered, weld-free stainless steel tubes providing excellent resistance to carbide precipitation and reliable performance in heat exchangers and thermal processing equipment.
SS 321/321H Welded Tubes
SS 321/321H welded tubes deliver dependable corrosion resistance and dimensional accuracy, making them suitable for mechanical, chemical, and high-temperature industrial applications.
SS 321/321H ERW Pipes & Tubes
SS 321/321H ERW (Electric Resistance Welded) pipes and tubes feature uniform wall thickness and strong metallurgical integrity, ensuring efficient fluid transport and structural reliability in demanding environments.
Alloy Classification :
Titanium Stabilised Austenitic Stainless Steel
Chromium Content :
17.0% – 19.0%
Nickel Content :
9.0% – 12.0%
Carbon Composition :
0.04% – 0.10% (High Carbon Grade)
Temperature Capability :
Suitable for prolonged service up to 900°C
Corrosion Behaviour :
Excellent resistance to intergranular corrosion after welding
Oxidation Performance :
High resistance under cyclic and continuous heating
Weldability :
Excellent weldability without post-weld annealing in many applications
Pressure Service :
Designed for high-pressure and elevated-temperature process piping
Heat Treatment Condition :
Solution Annealed
Documentation :
Mill Test Certificate (MTC) EN 10204 3.1 / 3.2 Available
End-Use Sectors :
Refineries, Fertilizer Plants, Boilers, Superheaters, Power Stations, Petrochemical Industries
Chemical Composition of Stainless Steel 321/321H Seamless Pipes And Tubes
| % | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 321 | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
| 321H | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
min:0.04 max:0.10 |
min:18.0 max:20.0 |
max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
Mechanical Properties Of Stainless Steel 321/321H Seamless Pipes and Tubes
| Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Brinell) MAX |
|---|---|---|---|---|
| 321/321H | 75 | 30 | 40 | 217 |
Physical Properties of 321/321H Stainless Steel Pipes And Tubes
| Denstiy lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 106 |
Our SS 321H Pipes and Tubes Supplier are used in a wide range of applications and various industries. Below are a few of them:
Application Industries
Aerospace Industry
Food Processing Industry
Pulp & Paper Indusry
Energy Industry
Pharmaceuticals Industry
Power Plant Industry
Chemical Industry
Oil and Gas Industry
Get clear answers to common queries about our steel products, services, and delivery processes.
Yes. KVN Steels supplies SS 321H Pipes and Tubes throughout the United Arab Emirates, including Abu Dhabi, Dubai, Sharjah, Ajman, Ras Al Khaimah, Fujairah, Al Ain, and Umm Al Quwain. Our inventory includes seamless, welded, ERW, and EFW pipes and tubes in a wide range of sizes and schedules for industrial and project-specific applications.
Our range includes ASTM A312 TP321H seamless pipes, welded pipes, ERW pipes, EFW pipes, heat exchanger tubes, condenser tubes, instrumentation tubes, hydraulic tubes, and custom cut-to-length products. Each product is manufactured to internationally recognised ASTM and ASME specifications to meet diverse engineering requirements.
Both grades are titanium-stabilised stainless steels designed to resist intergranular corrosion after welding. However, SS 321H contains a higher carbon content, providing improved creep strength and enhanced mechanical performance during prolonged exposure to elevated temperatures. As a result, SS 321H is generally preferred for high-temperature process piping and thermal service applications.
Selecting the appropriate SS 321H Pipes and Tubes depends on operating temperature, pressure, pipe dimensions, manufacturing type (seamless or welded), corrosion environment, and applicable ASTM or ASME standards. Evaluating these engineering parameters ensures optimum performance, regulatory compliance, and long-term operational reliability.
SS 321H offers excellent resistance to oxidation, thermal fatigue, and intergranular corrosion while maintaining superior mechanical strength at elevated temperatures. These characteristics make it a preferred material for refineries, power generation facilities, petrochemical plants, boilers, and high-temperature process piping systems.
SS 321H Pipes and Tubes are extensively specified for oil & gas processing, petrochemical plants, power generation stations, refineries, fertilizer manufacturing, heat exchanger systems, boilers, pressure vessels, chemical processing facilities, and industrial process piping where sustained high-temperature performance is essential.
SS 321H Pipes and Tubes are commonly manufactured in accordance with ASTM A312, ASTM A213, ASTM A269, ASTM A358, ASME SA312, and ASME SA213 specifications. Compliance with these internationally recognised standards ensures dimensional accuracy, pressure integrity, material consistency, and dependable performance for critical industrial applications.
To ensure compliance with international engineering and quality standards, SS 321H Pipes and Tubes undergo comprehensive inspection procedures, including Positive Material Identification (PMI), Hydrostatic Pressure Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Dimensional Verification, Surface Inspection, Chemical and Mechanical Property Evaluation, and complete material traceability supported by Mill Test Certificates (MTCs) prior to dispatch.
Our Location
Flat no 5, Swapna HSG Soc
Ltd., Charkop, Kandivali West,
Mumbai, Maharashtra, India.
400067
