Alloy 347 is a chromium nickel stainless steel which has been modified by the addition of columbium and tantalum. The main advantage of this is an excellent resistance to intergranular corrosion which is common to other austenitic stainless steels following exposure to temperatures of 800° to 1500°F.
Alloy 347 is generally used where corrosive conditions are severe, such as aircraft exhaust stacks, manifolds and ring collectors. Type 347 is also used for heavy welded assemblies which cannot be annealed after welding or where the operating conditions cause exposure within the temperature range between 800° to 1500°F.
Outer Diameter: 1mm-1500mm
Technique: Hot Rolled/Cold Drawn
Chemical Composition Limits
10 x C min
8 x C min
Yield Strength (ksi)
Tensile Strength (ksi)
With plastic cap to protect both ends
Plastic bag wrapped outside pipe
Woven bag wrapped outside pipe
All our products are packed, stored, transported according to the international regulation.
The tubes are wrapped with anti-rust paper and steel rings to prevent damage. Identification labels are tagged according to standard specification or customer's instructions. Special packing is available as per customer's requirement.
Plus, ply wooden box are available for special protection. Other kinds of packing can be offered if request.
Add: Maao Industry Area,Jiangbei district,Wenzhou City, Zhejiang Province,China