Metalloy International is a major distributor and retailer of seamless and welded 347 stainless steel tubes for all types of heat exchangers, including chillers, condensers, evaporators, preheaters, reheaters, reboilers, steam generators, and air conditioners. Heat exchanger tubes are being used in the manufacturing of heat exchangers that transfer heat from one fluid/medium to the next. Our heat exchanger tubes are used in a number of sectors including electricity, petroleum & gas, power generation, pharmaceuticals, and chemicals.

A heat exchanger tube is a component of a heat exchanger that is mounted inside a cylinder to allow heat to be exchanged between two media. We specialize in the supply of 347 stainless steel austenitic alloy-steel furnace, superheater, and heat-exchanger tubes with custom wall thicknesses in sizes ranging from 1/2′′ OD to 3′′ OD. In India, we are one of the leading producers and exporters of stainless steel 347 heat exchanger tubes. In heavily oxidizing conditions, stainless steel 347 has marginally better corrosion resistance than stainless steel 321. Columbium (niobium)/tantalum stabilized austenitic chromium-nickel stainless steel Alloy 347 was created to provide an 18-8 type alloy with increased intergranular oxidation tolerance.

347 stainless steel heat exchanger tubes have a usage in Collector rings, airplane exhaust stacks, and annealing container cases, jet engine parts, extension joints, tubing, fasteners, flexible metal hose, and bellows, etc. 347 stainless steel pipes have superior mechanical properties and are also suitable for elevated temperature applications.

Our respected clients highly regard SS 347 Heat Exchanger Tubes for characteristics such as longevity, ease of installation, and high tensile strength. These 347 Heat Exchanger Tubes can be used to heat or cool other mediums such as charge air or pool water by using the right materials. Our customers prefer our SS 347 Seamless Heat Exchanger Tubes because of their high tensile strength, reliability, and ease of installation. Plain top, Bevel end, Square cut on request, and deburring are all available on stainless steel 347H heat exchanger tubes. 347/347H stainless steel heat exchanger tubes are made of cold-rolled or hot rolled stainless steel and go through a series of consistency tests.

Specifications: ASTM A249 / ASME SA249

Dimensional : ASTM, ASME and API

Range: 6.35 Mm OD to 273 Mm OD

Outer Diameter: 9.52 mm O.D to 50.80 mm O.D

Thickness: 0.70 mm to 12.70 mm

Trade Name: Precision Tube, Welded Stainless Steel U Bending tube, Heat exchanger, boiler, heater Tubing

Manufacturing Techniques: Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded

Schedule Thickness Range:SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

End Types : Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends)

Delivery Condition of SS Heat Exchanger Tube : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

Surface Finish: No.1, No.4, No.8 Mirror Finish, 2B

Value Added Services: Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

Stainless Steel 347 Seamless Heat Exchanger Tubes
SS 347 Seamless Heat Exchanger Tubes
Stainless Steel 347 Welded Heat Exchanger Tubes
SS 347 Welded Heat Exchanger Tubess
Stainless Steel 347 U Bending Heat Exchanger Tubes
SS 347 U Bending Heat Exchanger Tubes
Stainless Steel 347 Oval Heat Exchanger Tubes
SS 347 Oval Heat Exchanger Tubes
Stainless Steel 347 U Shape Heat Exchanger Tubes
SS 347 U Shape Heat Exchanger Tubes
Stainless Steel 347 Heat Exchanger Boiler Tube
SS 347 Heat Exchanger Boiler Tube
STANDARD WERKSTOFF NR. UNS JIS GOST EN
SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10
Grade C Mn Si P S Cr Mo Ni Fe
SS 347 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 20.00 10xC – 1.10 9.00 - 13.00 62.74 min
Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
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