Home > Forged Fittings > Stainless Steel 347/347H Forged Fittings
Ed Stainless is a reputable manufacturer and supplier located in Houston, Texas, focusing on high-quality Stainless Steel 347/347H Forged Fittings. With a strong dedication to quality and innovation, Ed Stainless provides high-performance forged fittings that meet the rigorous demands of industrial applications throughout the United States. Renowned for their exceptional corrosion resistance and impressive mechanical strength, their 347/347H stainless steel products are designed to endure high-temperature environments. With a wealth of experience, cutting-edge manufacturing techniques, and strict quality control, Ed Stainless is a dependable partner for industries like petrochemical, oil & gas, power generation, and more, both in Texas and beyond.
The Stainless Steel 347/347H Forged Fittings from Ed Stainless boast a composition that includes a healthy dose of chromium (17–20%), nickel (9–13%), and added columbium (niobium) to enhance stability against intergranular corrosion. The Type 347H variant features a higher carbon content, which improves its strength at elevated temperatures. These forged fittings provide excellent tensile strength (around 515 MPa), yield strength (205 MPa), and outstanding creep resistance. They are engineered to maintain their structural integrity under pressure and high temperatures, ensuring durability and a long service life—perfect for demanding operational environments where reliability is essential.
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 Ed 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.
Ed Stainless’s Stainless Steel 347/347H Forged Fittings are widely utilized in industries that require exceptional heat resistance and corrosion protection. Typical applications include heat exchangers, pressure vessels, boilers, and superheater tubes in the oil & gas, chemical processing, and power generation sectors. Their remarkable performance in high-temperature settings makes them ideal for petrochemical plants and refineries that handle harsh fluids and gases. Additionally, these fittings find use in aerospace, marine, and pharmaceutical industries due to their durability and mechanical strength. Ed Stainless guarantees that each forged fitting meets the highest standards of quality.
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