Home > Forged Fittings > Stainless Steel 347/347H Forged Fittings
Nakamura Stainless, a well-respected manufacturer and supplier based in Pulau Ujong, Singapore, is known for delivering top-notch stainless steel products that adhere to global quality standards. Among their specialized offerings, **Stainless Steel 347/347H Sheets and Plates** stand out for their exceptional resistance to intergranular corrosion, impressive high-temperature strength, and overall durability. These sheets and plates are designed to thrive in demanding industrial settings, ensuring they provide long-lasting service and reliable performance. With a strong commitment to precision, dependability, and customer satisfaction, Nakamura Stainless serves various industries, including petrochemical, power generation, aerospace, and chemical processing, with trustworthy stainless steel solutions.
**Stainless Steel 347/347H Sheets and Plates** are austenitic stainless steels that contain 17–19% chromium, 9–13% nickel, and niobium (columbium) for stabilization. The 347H variant features a higher carbon content, which boosts its creep strength at elevated temperatures. This unique composition offers excellent resistance to intergranular corrosion, even post-welding, along with oxidation resistance up to 870°C. Their mechanical properties include tensile strength ranging from 515–750 MPa, yield strength around 205 MPa, and good elongation, ensuring they remain tough. Their weldability, formability, and thermal stability make them perfect for high-heat and corrosive industrial applications.
Stainless Steel Forged Fittings Specification : ASTM A182 / ASME SA182
Dimension Standard : ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799
Size : 1/8″ NB to 4″ NB
Type : Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type)
Rating Pressure : Threaded End – 2000 /3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS.
| C | Cr | Mn | Ni | P | S | Si | Cb/Ta | |
|---|---|---|---|---|---|---|---|---|
| 347 | 0.08 max | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.04 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| 347H | min: 0.04 max: 0.10 | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.03 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% ksi offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 347/347H | 75 (515) | 30 (205) | 40 | 201 | 95 |
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At Nakamura Stainless, all stainless steel 347/347H forged fittings are rigorously tested to ensure unmatched quality and performance. Each product is certified to international standards, including ISO, ASTM and ASME. Comprehensive testing such as fluid stability, ultrasonic and mechanical analysis provides reliability, stability and compliance for various industrial applications.
Highly resistant to intergranular corrosion, these fittings are designed for high-pressure applications. They provide a secure, leak-proof connection in sizes from 1/4″ to 4″ and various pressure ratings.
Offering exceptional resistance to oxidation and high-temperature environments, these fittings are available in sizes from 1/8″ to 4″ NPT. They are ideal for applications where high strength and durability are required.
Resistant to both corrosion and high temperatures, this elbow allows for smooth changes in pipe direction at a 45-degree angle. Sizes range from 1/2″ to 4″, accommodating various pipe dimensions.
With excellent resistance to corrosion and high temperatures, this tee connects three sections of pipe, allowing for changes in direction. Available in sizes from 1/4″ to 4″ NPT.
Featuring strong corrosion resistance and suitability for high-temperature use, this coupling connects a pipe to a threaded fitting. Common sizes include 1/4″ to 2″ NPT.
Known for its durability and resistance to corrosive environments, this cross-fitting enables four-way connections between pipes. Available in sizes from 1/2″ to 2″, it ensures robust and reliable performance.
**Stainless Steel 347/347H Sheets and Plates** find extensive use in industries that demand heat and corrosion resistance. In petrochemical and chemical plants, they are utilized in reactor vessels, heat exchangers, and furnace components. The power generation sector employs them in boiler tubes, superheaters, and turbine parts due to their remarkable creep resistance. In the aerospace industry, they are used in exhaust systems and engine components that endure high temperatures. Additionally, they play a crucial role in food processing and pharmaceutical equipment, where hygiene and oxidation resistance are vital. Their versatility guarantees reliable performance across various applications.
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