A213 TP347H S34709 Stainless Steel Pipe Tube For Pyrochemical Process

Sch80S Stainless Steel Pipe Tube EN 1.4841 Used in Apparatus engineering

Introduction to products:

Alloy 347 is a stable austenitic chromium steel containing columbium, which can eliminate carbide precipitation and thus eliminate intergranular corrosion. Alloy 347 is stabilized by the addition of chromium and tantalum and provides higher creep and stress rupture properties than alloys 304 and 304L, which can also be used for exposure concerned with sensitization and intergranular corrosion. The addition of niobium also makes 347 alloy with excellent corrosion resistance, even better than 321 alloy. 347H is a high-carbon form of 347 alloy with good high temperature and creep properties.

APPLICATIONS :

Alloy 347 is often used in manufacturing equipment that must be used under severe corrosion conditions and is also common in the petroleum refining industry. Applications that consistently use Alloy 347 include:

• Pyrochemical process
• Heat exchange tube
• High-temperature steam plant
• High pressure steam pipe
• Radiant superheater
• Boiler tube
• Heavy duty exhaust system
• General refinery piping

Chemical Composition of 347H(S34709)

Description for our production range:

our products packing:

Tensile Requirements – Stainless Steel 310S/310H:

Tensile Strength (KSI): 75

Yield Strength (KSI): 30

Notes:

10-6·K-1 = 10-6/K

1 Ω·mm²/m = 1 μΩ·m

1 g/cm3 = 1 kg/dm3 = 1000 kg/m3

1 GPa = 1 kN/mm2

1 MPa = 1 N/mm2

other supplement:

1.A999/A999M: Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test, the pipe of test to be used shall be at the option of the mfg, unless otherwise specified in the PO.
2. The Pipe lengths : Unless otherwise agreed upon, all size from NPS 1/8" TO AND INCLUDING nps 8 are available in a length up to 24ft with the permitted range of 15 to 24 ft. Short length are acceptable and the number and min, length shall be agreed upon between mfg and purchaser.
3. The finished pipe shall be reasonably straight and shall have workmanlike finish, Removal of imperfections by grinding is permitted, provided the W.T are not decreased to the less than the permitted in Section 9 of Specification A999/A999M
4. Butt Weld End: According to ANSI B 16.25
5. Pipe Marking: Specified in A999/999M, include "Logo+Standard+SIZE+Heat No.+Lot No.+H.T/E.T/U.T"
6. Packing: Each Pipe end is protected by Plastic cap. Then packed by Anti-rust steel strip, The outside of the bundle is plastic woven bag, or Plastic film.
7. Packing Mark: SIZE + STEEL GRADE+ QTY OF PIECE/WEIGHT/METRE.
8.MTC: BWSS Official Original MTC paper will be supplied for each order.