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The TP347H stainless steel pipe is a kind of austenitic stainless acid resistant steel, with good resistance to intergranular corrosion resistance and good corrosion resistance, mainly used in aerospace, petrochemical, food, paper and other industries.
TP347H stainless steel is austenitic stainless acid resistant steel, are widely used in aerospace, petrochemical, food, paper and other industries, such as the exhaust duct and branch of aero engine turbine compressor, heat pipes and parts of not more than 850 DEG C under the working conditions in a small load and temperature.
The characteristics of TP347H stainless steel pipe is corrosion, intergranular anti good in acid, alkali, salt solution, have good corrosion resistance.
The physical constants of TP347H stainless steel pipe:
Melting point: the temperature of 1398-1427 DEG C
Specific heat capacity: 500J (kg.K)
The elastic modulus at 20 DEG C: 196GPa, 200 DEG C to 400 DEG C for 186GPa, 177GPa, 500 degrees 167GPa, 600 DEG C for 167GPa
Specific resistance: 0.75nN.m
Chemical composition of TP347H stainless steel pipe:
C: = 0.10, Si: = 1 Mn: = 2 Cr:17.0-20.0 Ni:9.0-13.0 Nb:8 * C%-1.5 S: = 0.030 P: = 0.035
Mechanical properties of TP347H stainless steel pipe:
20 C: 559-637 235-274 53-61 63-69 20.6-27.4
500 C: 392-429 147-216 28-36 56-66 23.5-28.4
600 C: 363-382 137-186 28-34 54-65 24.5-30.4
650 C: 304-363 118-167 31-38 54-61 23.5-31.4
700 C: 245-304 31-42 44-60 24.5-29.4
Heat treatment of TP347H stainless steel pipe:
The temperature of 1000-1100 DEG C solid solution treatment, water cooling
Corrosion resistance of TP347H stainless steel pipe:
Uniform corrosion
Intergranular corrosion by sulfuric acid with copper sulphate and copper scrap method (T method), copper and sulfuric acid sulfuric acid method (L method) and 65%HNO3 method (X method) test
Antioxidation: at 750-800 DEG C in the air, the antioxidant properties of this steel has stable
