what are stainless steel 347 pipes?
Alloy materials are used to produce pipes for various applications. The alloys make up the mechanical and physical properties of the pipes. The Stainless Steel 347 Pipe has 17% chromium, 9% nickel, and 3% molybdenum with carbon, manganese, silicon, phosphorus, and sulfur in the composition. The niobium addition makes up a few added qualities.
stainless steel 347 vs 316
Both pipes have good strength, corrosion resistance, and high-temperature resistance, but the UNS S34700 Seamless pipe has no titanium in the composition. Instead, it has high molybdenum content, 3%, and niobium. The 347 material is also not harder than the 316 material. The pipes range from 6mm to 914.4mm in outer diameter. The wall thicknesses range from 0.3mm to 50mm.
what is the hardness of 347 ss pipe
347 ss pipe has 205MPa minimum yield strength, 515MPa tensile strength, and 201 Brinell Hardness. The density of the WNR 1.4550 Welded pipe is 8000kg/m3 and it has high impact resistance as well. The hardness and heat resistance make these pipes suitable for heat exchangers, power generation, etc.
stainless steel 347 vs 321
The 321 grade has titanium whereas the 347 has niobium. Both grades are similar in many properties. The niobium addition makes the stainless steel grade 347 Welded pipe corrosion-resistant. The intergranular corrosion is much less due to the niobium inclusion.
how 347 stainless steel pipe is tested?
As the qualities of the 347 stainless steel pipe pipe increase, the need to confirm those also arises. So the pipes are tested through the weld decay test, nondestructive electric test, flattening test, longitudinal tension test, and transverse test. The ss 347 pipe can undergo destructive test and chemical tests as well.
what is the working temperature of the ss 347 seamless pipes?
The material hardness, yield, tensile strength, and thermal capacity make the pipes withstand high temperatures. The ss 347 seamless pipe can operate in the range of 427° Celsius to 816° Celsius.
