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TP347H stainless steel pipe and tube

TP347H (1Cr19Ni11Nb) is a high-carbon niobium-containing Cr-Ni austenitic stainless steel. Because it contains the stabilizing element Nb, it has good resistance to intergranular corrosion and polysulfuric intergranular stress corrosion. It is in acid, alkali, salt and other corrosive media. Its corrosion resistance is similar to 18-8 austenitic stainless steel containing Ti, so it is widely used in boiler, power generation, petroleum, chemical, synthetic fiber, food, paper and other industries. Superheater tubes, reheater tubes, steam pipes and petrochemical heat exchangers for large boilers.

Outside diameter: 1/2''--5''

Thickness: Sch5--Sch XXS

Length: 0.5m-12m (custom made if length over 12m)

Chemical composition:

  ASME SA213/SA213M

Elements %

C

Mn

P   

S    

Si  

Cr   

Ni

Mo

Nb+Ta

     TP347H stainless steel pipe

0.04-0.10

2.0

0.040

0.030

0.75

17.0-20.0

9.00-13.0

8*C min, 1.00% max


Stainless steel pipe TP347H Mechanical Properties: 

Tensile Strength, MPa

Yield Strength, MPa

Elongation, %

Hardness, HB

515min

205min

35 min

192 max

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