Stainless Steel 309H Pipe
Stainless steel is renowned for its versatility, durability, and resistance to corrosion. Stainless Steel 309H Pipe is a high-carbon austenitic stainless steel grade designed for elevated temperature applications. We are a reliable stainless steel 309h pipe supplier offering premium quality 309H Stainless Steel Seamless Pipe, SS 309H Welded Pipe, and 309H SS ERW Pipes manufactured as per international standards. Our range includes ASTM A312 TP309H Seamless Pipe, SS UNS S30909 Pipes, and welded variants supplied to domestic and global markets.
As trusted SS 309H Welded Pipe Manufacturers in India, we supply pipes that deliver excellent oxidation resistance, creep strength, and long-term performance in high-temperature service environments.
What is 309H Stainless Steel?
Stainless Steel 309H is a high-carbon modification of SS 309, developed specifically for high-temperature strength and creep resistance. The increased carbon content improves performance in elevated temperature conditions, making Stainless Steel 309H Seamless Pipe and ASTM A312 TP309H Seamless Pipe ideal for furnace parts, heat exchangers, and thermal processing units.
Due to its excellent weldability and oxidation resistance, SS 309H Welded Pipe is widely used in high-heat industrial systems.
Properties of 309H Stainless Steel
Understanding the properties of 309H stainless steel is crucial to appreciating its suitability for demanding environments. Here are some key attributes:
- High-Temperature Strength: 309H stainless steel exhibits excellent strength and stability at high temperatures, making it ideal for applications involving intense heat.
- Oxidation Resistance: The high chromium content ensures remarkable resistance to oxidation, preventing surface degradation even at elevated temperatures.
- Corrosion Resistance: While specifically designed for high-temperature use, 309H stainless steel also offers good resistance to corrosion in various environments.
- Enhanced Carbon Content: The increased carbon content in 309H grade stainless steel enhances its creep strength and allows for better performance under prolonged exposure to high temperatures.
- Good Weldability: 309H stainless steel can be easily welded and fabricated, making it versatile for various industrial applications.
Benefits of Choosing ASC LLP for 309H Stainless Steel Pipes
At ASC LLP, we are committed to providing our clients with the highest quality stainless steel products. When you choose our 309H stainless steel pipe, you benefit from:
- Superior Quality: Our 309H stainless steel pipes are manufactured to meet stringent quality standards, ensuring reliability and performance in critical applications.
- Customization: We offer a wide range of sizes and specifications to meet the unique requirements of your projects. Our team can also provide custom solutions tailored to your specific needs.
- Expertise: With years of experience in the stainless steel industry, our knowledgeable team can provide valuable insights and technical support to help you select the right materials for your applications.
- Competitive Pricing: We strive to offer competitive pricing without compromising on quality, ensuring you receive the best value for your investment.
- Timely Delivery: We understand the importance of timely project completion, and our efficient supply chain ensures prompt delivery of your 309H stainless steel pipes.
Schedule and Size Chart for Stainless Steel 309L Grade Pipe
| Schedule Number | Nominal Pipe Size (NPS) | Outside Diameter (OD) | Wall Thickness (WT) |
| Schedule 10 | 1/2″ to 24″ | 21.3mm to 610mm | 2.11mm to 9.27mm |
| Schedule 40 | 1/2″ to 24″ | 21.3mm to 610mm | 2.77mm to 17.48mm |
| Schedule 80 | 1/2″ to 24″ | 21.3mm to 610mm | 3.73mm to 23.01mm |
| Schedule 160 | 1/2″ to 24″ | 21.3mm to 610mm | 4.78mm to 40.49mm |
| XXS | 1/2″ to 24″ | 21.3mm to 610mm | 5.54mm to 50.01mm |
Sizes are available in 309H Stainless Steel Seamless Pipe and 309H SS ERW Pipes.
Mechanical Properties Chart for Stainless Steel 309L Grade Pipe
| Property | Value |
| Tensile Strength | 515 MPa (75 ksi) |
| Yield Strength (0.2% Proof) | 205 MPa (30 ksi) |
| Elongation | 40% |
| Hardness (Rockwell B) | 95 max |
| Modulus of Elasticity | 200 GPa (29,000 ksi) |
These properties make Stainless Steel 309H Welded Pipes Manufacturers products suitable for continuous high-temperature service.
Specifications Chart for SS 309L Grade Pipes
| Standard | Specification |
| ASTM | A312, A358, A999 |
| ASME | SA312, SA358, SA999 |
| DIN | 1.4833 |
| EN | 10216-5 |
| JIS | SUS 309L |
All products supplied by SS 309H pipe supplier all over globe meet strict international quality norms.
Chemical Composition Chart for 309L Stainless Steel Grade Pipes
| Element | Composition (%) |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 0.75 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Chromium (Cr) | 22.0 – 24.0 |
| Nickel (Ni) | 12.0 – 15.0 |
| Iron (Fe) | Balance |
Physical Properties Chart for SS 309L Grade Pipes
| Property | Value |
| Density | 7.89 g/cm³ |
| Melting Range | 1370-1400°C (2498-2552°F) |
| Specific Heat | 450 J/kg-K |
| Thermal Conductivity | 14.2 W/m-K at 100°C |
| Electrical Resistivity | 0.94 µΩ·m |
These characteristics ensure stability of ASTM A312 TP309H Seamless Pipe under thermal cycling conditions.
Application Chart for Stainless Steel 309L Grade Pipes
| Industry | Applications |
| Chemical Processing | Heat exchangers, piping systems, and pressure vessels |
| Oil and Gas | Refinery equipment, pipelines, offshore platforms |
| Power Generation | Boiler tubes, superheater tubes, steam lines |
| Petrochemical | Reactor components, processing equipment |
| Food Processing | Equipment handling high temperatures and corrosive substances |
| Pulp and Paper | Digesters, bleach washers, liquor tanks |
| Pharmaceutical | Clean-in-place systems, high-purity water systems |
Why Choose Stainless Steel 309H Pipes from ASC LLP?
At ASC LLP, we prioritize quality and reliability in every product we offer:
- Quality Assurance: Our Stainless Steel 309H Pipes undergo stringent quality checks to ensure compliance with international standards and specifications.
- Custom Solutions: We provide tailored solutions to meet specific customer requirements, ensuring optimal performance and longevity.
- Global Reach: With a robust distribution network, we cater to clients worldwide, delivering stainless steel products that meet diverse industrial needs.
Stainless Steel 309H Pipes from ASC LLP offer unparalleled durability and reliability in high-temperature environments. Whether you need seamless, welded, or custom-fabricated pipes, our range ensures optimal performance and longevity for your critical applications.
For more information on our Stainless Steel 309H Pipes and to explore how they can meet your specific requirements, please contact us today. Trust ASC LLP for premium quality stainless steel solutions backed by expertise and excellence.
Advantages of SS 309H Seamless & Welded Pipes
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Outstanding oxidation resistance at high temperatures
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High creep and tensile strength
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Good weldability and fabrication properties
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Long service life in thermal applications
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Resistant to scaling and thermal fatigue
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Suitable for seamless and welded construction
These advantages make SS 309H Welded Pipe Manufacturers in India a preferred choice for critical heat-resistant applications.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality stainless steel 309H pipes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
