Tp347 Pipe and Tube

HOME > Product > Austenitic Steel
Tp347H seamless pipe A312

Tp347 Pipe And Tube

  • Grade:347, 1.4550, S34700, X6CrNiNb18-10
  • OD: 6mm-630mm, 1/4"-24"
  • WT: 0.7mm-30mm, Sch 10S-Sch XXS
  • Length: Fixed or random length as specified
  • Specifications: A312, A213, A269, A249, A358, A511, JIS G3459, JIS G3463, EN10216-5
  • Delivery Condition: Annealed and Pickled, Birght Annealed, Mechanical Polished, Electric Polished
  • Mill Certificate: EN 10204 3.1, EN10204 3.2
  • Marking: Continuosly stenciled as specified.
  • Packing: In bundle or plywood cases with end caps
  • Manufacturing: Seamless, Welded


347 is an austenitic stainless steel with a stabilizing niobium/columbium addition. The material is with Good general corrosion resistance, Excellent resistance to intergranular corrosion in the welded condition, Easy to weld and form, Good low temperature toughness.
This grade is austenitic in the solution annealed condition (1000 - 1100°C / 1832 - 2012°F) and rapid cooling by air or water. It contains a small amount of ferrite and niobium/columbium carbonitrides. 347H is also available.

Chemical Composition:

% C Mn P S Si Cr Ni Mo Nb N Fe
Min - - - - - 17 9 - 10*C - balance
Max 0.08 2 0.045 0.03 1 19 13 - 1 - balance

Mechanical Property:

20°C Tensile Strength Yield Strength Elongation % Hardness Density
Min 515Mpa 205Mpa 35% - 7.9kg/dm3
Max - - - 90HRB 7.9kg/dm3


>Chemical Processing >Food Processing–equipment and storage
>Petroleum Refining–fluid catalytic cracking units >Pharmaceutical Production
>Waste Heat Recovery–recuperators >Pure phosphoric acid

Range of Products:

Plates / Sheets / Coil Heavy Plate
Cold Rolled Sheet
Hot Rolled Sheet
Fittings Seamless LR Elbow / Welded LR Elbow
Con Reducer / Ecc Reducer
Con Tee / Ecc Tee / Cross
Coupling / Cap
Flange Blind Plate Flanges
Lap Joint Flanges
Raised Face Blind Flanges
Raised Face Slip On Flanges
Raised Face Socket Weld Flanges
Raised Face Threaded Flanges
Raised Face Weld Neck Flanges
Slip On Plate Flanges
Blind Plate Flanges
Pipe / Tube Seamless Pipe
Welded Pipe
Seamless Tube
Welded Tube
Seamless U-Tube
Welded U-Tube
Square Tube
Rectangular Tube
Bar Round Bar
Square Bar
Flat Bar
Angel Bar
Hexagon Bar

Latest Reference Orders:

1 2