Rishabh Steel is a renowned manufacturer and supplier of high-quality Stainless Steel 309S Tubing, based in Mumbai, India. With years of expertise in the stainless steel industry, we offer tubing solutions that are durable, corrosion-resistant, and designed to meet international standards such as ASTM and ASME. Our SS 309S Tubes are ideal for high-temperature and oxidizing environments, making them suitable for a variety of industrial applications. Rishabh Steel is committed to delivering precision-engineered products, prompt service, and tailored solutions to meet diverse customer requirements both locally and globally.
Stainless Steel 309S Tubing contains a high level of chromium (22–24%) and nickel (12–15%), providing exceptional resistance to oxidation and heat. As a low-carbon version of SS 309, it offers better weldability while reducing the risk of carbide precipitation. The tubing has a tensile strength of approximately 620 MPa, a yield strength of around 310 MPa, and good elongation properties. SS 309S maintains excellent mechanical performance at elevated temperatures, making it suitable for thermal processing and high-temperature structural applications
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Outer Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded. |
| ELEMENT | SS 309S |
| NI | 12.0 – 15.0 |
| C | 0.08 max |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | 0.75 max |
| Condition & Grade | Tensile Strength | Yeild Strength | Elognation | Hardness |
|---|---|---|---|---|
| SS 309S | 75 (515) | 30 (205) | 35 | 90 HRB max |
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We ensures the highest quality stainless steel 309S tubing through rigorous testing procedures including mechanical, chemical and theoretical testing. Compliance with international standards is demonstrated by industry-standard documentation, such as material test certificates (MTCs). These certifications attest to the durability, strength and performance of the pipe.
Stainless Steel 309S seamless tubing offers excellent high-temperature strength and corrosion resistance, ideal for heat exchangers, refineries, and thermal processing equipment
309S instrumentation tubing ensures precise flow control with high corrosion and heat resistance, used in chemical plants, refineries, and high-purity instrumentation systems.
Stainless Steel 309S Tubing offers excellent oxidation and heat resistance, ideal for high-temperature applications in furnace components, heat exchangers, and petrochemical processing industries.
309S stainless boiler tubes resist oxidation and scaling at high temperatures, making them ideal for steam boilers, superheaters, and power plant operations.
309S U-tubes provide superior thermal and corrosion resistance, designed for efficient heat transfer in condensers, heat exchangers, and high-temperature processing units.
309S stainless condenser tubes deliver excellent heat resistance and corrosion protection, widely used in power generation, HVAC, and marine heat exchange systems.
Stainless Steel 309S Tubing offers excellent oxidation and heat resistance, ideal for high-temperature applications in furnace components, heat exchangers, and petrochemical processing industries.
Stainless Steel 309S Tubing is widely used in high-temperature environments such as furnaces, heat exchangers, and thermal processing units. It is commonly utilized in petrochemical plants, power generation facilities, and aerospace components due to its resistance to oxidation and heat scaling. In addition, it’s suitable for boiler tubes, kiln liners, and exhaust systems in automotive and industrial applications. SS 309S Tubes are also used in chemical plants and refineries where both heat and corrosion resistance are critical. Their low carbon content ensures excellent weldability and long-term performance in challenging conditions.
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