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Chanchai Stainless is a reliable Bangkok, Thailand-based manufacturer and supplier of high-grade stainless steel products, such as Stainless Steel 347H Pipe Fittings. Having years of experience and a track record of precision, longevity, and adherence to international standards, Chanchai Stainless caters to numerous industries that require performance in harsh high-temperature and corrosive environments. The firm is dedicated to providing pipe fittings that meet stringent quality standards, with both standard and tailored solutions available. Through effective service, fair prices, and dependable logistics, Chanchai Stainless has gained prominence within both the local and international markets.
Stainless Steel 347H Pipe Fittings are fabricated from a stabilized austenitic stainless steel alloy with 17–20% chromium, 9–13% nickel, and columbium (niobium), having higher carbon than 347 in order to have increased creep resistance and high-temperature strength. The fittings have superior mechanical properties such as tensile strength of approximately 515 MPa and yield strength of 205 MPa along with good elongation and ductility. Their exceptional resistance to intergranular corrosion, even following welding or long heat exposure, renders them suitable for demanding service environments.
| 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. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 347H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| 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 % |
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We ensures the very high standards with respect to quality in Stainless Steel 347H Pipe Fittings with rigorous tests and certifications. All products are given comprehensive inspection tests, including dimensional checks, mechanical tests, and corrosion resistance tests, and we provide relevant MTCs in order to ensure strict adherences to international standards and client requirements.
Stainless Steel 347H pipe fittings are high-temperature-resistant components made from stainless steel 347H, offering excellent strength, oxidation resistance, and durability, ideal for demanding industrial and aerospace applications.
SS Butt Weld 347H pipe fittings are high-temperature-resistant components used to join pipes through welding. Made from stainless steel 347H, they provide strength, durability, and corrosion resistance in extreme environments.
SS 347H Socket Weld pipe fittings are high-temperature components used to connect pipes via a socket weld. Made from stainless steel 347H, they offer excellent strength, corrosion resistance, and durability.
Stainless Steel 347H seamless fittings are high-temperature-resistant components with no welds, providing superior strength, durability, and corrosion resistance, ideal for demanding industrial and aerospace applications.
SS 347H cross pipe fittings are high-temperature-resistant components that connect four pipes at a junction. Made from stainless steel 347H, they offer strength, durability, and resistance to oxidation and corrosion.
Stainless Steel 347H tee fittings are high-temperature-resistant components that create a T-junction, connecting three pipes. Made from stainless steel 347H, they provide strength, durability, and resistance to oxidation and corrosion.
Stainless Steel 347H Pipe Fittings are utilized extensively in high-temperature and pressure operating industries. Some common uses are heat exchangers, boilers, superheaters, and pressure piping systems within the oil and gas, petrochemical, power generation, and chemical processing industries. These fittings are prized for their resistance to oxidation, thermal fatigue, and corrosion in high-temperature service. Their retention of mechanical strength under thermal cycling qualifies them for steam lines, refinery process equipment, and similar aggressive application areas where performance, safety, and durability are paramount over extended periods of operation.







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