TP347 stainless steel pipe is austenitic stainless acid-resistant steel, widely used in aviation, petrochemical, food, paper and other industries, such as the exhaust manifold and branch pipe of aero-engine, hot gas pipeline of turbo compressor and not under small load and temperature. Parts that work at temperatures above 850 °C.
TP347 stainless steel tube is characterized by good resistance to intergranular corrosion and good corrosion resistance in acid, alkali, salt and other solutions.

TP347 stainless steel tube physical constant:
Melting point: 1398-1427 ° C
Density: 7.9g/cm3
Specific heat capacity: 500J (kg.K)
Modulus of elasticity: 196 GPa at 20 ° C, 186 GPa at 200 ° C, 177 GPa at 400 ° C, 167 GPa at 500 ° C, and 167 GPa at 600 ° C
Specific resistance: 0.75nN.m

When solution annealing is performed at temperatures above 1950 °F (1065 °C), TP347 may reduce intergranular corrosion resistance under subsequent exposure to sensitive conditions. When specified, low temperature stabilization or resolution annealing is performed after the initial high temperature solution annealing.

347H is austenitic stainless steel with good corrosion resistance, weldability and heat strength. 347H stainless steel is used for heat exchanger tubes for large boiler superheaters, reheaters, steam pipes and petrochemicals.

Basic Features for 347H:
(1) High temperature strength and high temperature plasticity
(2) Excellent oxidation resistance and corrosion resistance
(3) has good tissue stability
(4) Uniform chemical composition
(5) Good processing performance and welding performance
(6) High dimensional accuracy and surface quality

Chemical composition:

Cargo packaging:

All the material would be tested before shipping:
1. Measurement test
2. Chemical composition test
3. Ultrasonic test
4. Eddy current testing