Home > Forged Fittings > Stainless Steel 347/347H Forged Fittings
Merih Stainless is a reputable Istanbul-based Turkey manufacturer and supplier of high-quality Stainless Steel 347/347H Forged Fittings. With a strong emphasis on reliability, precision engineering, and international standards, Merih Stainless offers dependable products customized to suit the requirements of different industries. The company fuses cutting-edge technology with expert craftsmanship to develop forged fittings with outstanding performance in challenging environments. Renowned for its customer-focused philosophy and quality commitment, Merih Stainless has established a good reputation locally and worldwide for its reliable stainless steel solutions.
Forged Fittings of Stainless Steel 347/347H are chromium, nickel, and columbium (niobium) bearing stabilized austenitic stainless steels, and 347H possesses greater carbon content for improved high-temperature strength. All these alloys possess superior resistance to intergranular corrosion, oxidation, and stress rupture. The conventional composition contains about 17-20% chromium, 9-13% nickel, and traces of elements such as columbium and tantalum. Mechanically, they possess a tensile strength of about 515 MPa, yield strength of 205 MPa, and elongation of 35%, which makes them ideal for high-temperature uses that demand sound structural integrity.
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 Merih 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 Forged Fittings find extensive applications in industries that demand high corrosion resistance and high-temperature resistance, including chemical processing, power generation, oil and gas refining, and aerospace. They find suitable applications in heat exchangers, pressure vessels, boiler fittings, and exhaust manifolds due to their heat and corrosive resistance. In petrochemical facilities, the fittings are deployed in the piping that carries aggressive fluids. Their long lifespan and low maintenance requirements also make them applicable for marine uses and high-stress mechanical devices.
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