ASTM A403 WP347H-S Stainless Steel 90 Degree LR Elbow Butt Weld Fitting ANSI B16.9
A403 / SA403 WP347H-S Stainless Steel Elbow BW FITTNG ANSI B16.9
What is a stainless steel elbow?
A stainless steel elbow is a type of pipe fitting commonly used in plumbing and piping systems. It allows for a change in the direction of the piping, typically at a 90-degree or 45-degree angle. The use of stainless steel in the construction of the elbow provides durability, corrosion resistance, and the ability to handle high temperatures and pressures. Stainless steel elbows are widely used in various industries, including construction, chemical processing, oil and gas, and food processing.
What is grade SS347H/UNS S34709?
The grade SS347H/UNS S34709 refers to a high carbon version of the stainless steel grade 347. Stainless steel grade 347 is a stabilized austenitic stainless steel that contains niobium, which provides improved intergranular corrosion resistance.
SS347H/UNS S34709 has a higher carbon content compared to standard grade 347, which enhances its high-temperature strength and creep resistance. This makes it suitable for applications involving elevated temperatures, such as in refineries, chemical processing, and high-temperature environments.
SS347H Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength | Elongation |
| 7.93 g/cm3 | 1050 °C (1925 °F) | ksi – 75, MPa – 515 | ksi – 30 , MPa – 205 | 35 % |
SS347H Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni |
| SS 347H | 0.04-0.1max | 2.00 max | 1.00 max | 0.045 max | 0.030 max | 17.00 - 19.00 max | 9.00 – 12.00 max |
SS347H Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS347H | 1.4961 | S34709 | SUS 347H | X6CRNINB18-12 |
WP347H Fittings Application:
Chemical Processing
Refineries
Heat Exchangers
Power Generation
Industrial Furnaces
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