Yes, stainless steel can be welded to carbon steel using dissimilar metal welding techniques. Use filler metals like ER309L or 309L electrodes to prevent cracking and maintain corrosion resistance. Proper preheat helps.
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Kyaw Stainless, located in Naypyidaw, Myanmar, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel Couplings, crafted for dependable performance in tough industrial settings. The company focuses on creating robust and precisely designed couplings that guarantee secure and leak-free connections in piping systems. With a strong dedication to quality, Kyaw Stainless employs cutting-edge manufacturing techniques and high-grade stainless steel to produce items that align with global standards. Their Stainless Steel Couplings are celebrated for their remarkable corrosion resistance, impressive strength, and durability, making them perfect for a variety of applications across different industries.
These couplings are mainly made up of iron, chromium (16–18%), nickel (8–12%), along with trace amounts of molybdenum, manganese, and silicon. This well-balanced composition offers exceptional resistance to corrosion and oxidation, as well as enhanced strength. Mechanically, these couplings showcase excellent tensile strength, good yield strength, and superior hardness, ensuring they can withstand high pressure and temperature conditions. Their smooth surface finish, paired with great formability and weldability, makes them versatile in various systems, minimizing maintenance needs and ensuring long-lasting reliability in fluid or gas transfer applications.
| Grades | 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Size | ½”NB to 48″NB in |
| Schedule | Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| SS | 304 | 304N | 304LN |
|---|---|---|---|
| Ni | 8 – 11 | 8 – 11 | 8 – 11 |
| Fe | Balance | ||
| Cr | 18 – 20 | 18 – 20 | 18 – 20 |
| C | 0.08 max | 0.08 max | 0.035 max |
| Si | 0.75 max | 0.75 max | 0.75 max |
| Mn | 2 max | 2 max | 2 max |
| P | 0.040 max | 0.040 max | 0.040 max |
| S | 0.030 max | 0.030 max | 0.030 max |
| N | 0.10 – 0.16 | 0.10 – 0.16 | |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
Contact us to get a quick quote for your requirement.
Quality is our highest concern at Kyaw Stainless. Each Stainless Steel Coupling is thoroughly tested for quality before it is dispatched. Our testing procedure involves Hardness Testing, Chemical Analysis (through Spectro Analysis), Positive Material Identification (PMI) Test, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test and Intergranular Corrosion (IGC) Test. We are dedicated to providing robust, robust and trustworthy couplings to our clients so that they can get the finest products for use.
Yes, stainless steel can be welded to carbon steel using dissimilar metal welding techniques. Use filler metals like ER309L or 309L electrodes to prevent cracking and maintain corrosion resistance. Proper preheat helps.
TIG (GTAW) welding is best for stainless steel due to its precision, clean welds, and minimal heat distortion. MIG (GMAW) with argon-rich shielding gas is also effective for thicker materials.
Yes, welding stainless steel requires special gas, typically a tri-mix of argon, helium, and CO₂ for MIG welding or pure argon for TIG welding, ensuring corrosion resistance and strong welds.
Yes, stainless steel can be welded without filler metal using autogenous welding techniques like TIG fusion welding or laser welding. This works best on thin materials but may reduce joint strength and corrosion resistance.
Stainless Steel Couplings find extensive use in industries like chemical processing, petrochemical, oil and gas, water treatment, food and beverage, and pharmaceuticals. They play a vital role in connecting pipes and ensuring a secure, leak-proof flow of liquids or gases. These couplings are particularly suited for high-pressure and corrosive environments due to their outstanding resistance to rust and chemical damage. Moreover, they are frequently used in plumbing systems, marine applications, and HVAC systems, where durability, hygiene, and efficient performance are crucial for safe and productive operations.
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