Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
STBA25 steel tubes are alloy steel tubes used for exchanging heat between the inside and outside of the tube,such as water tubes, smoke tubes, superheater tubes and air preheater tubes of boilers, and heat exchanger tubes, condenser tubes and catalyst tubes used in chemical and petroleum industries. It is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.
STBA25 steel tubes heat treatment: Isothermal annealing or normalizing followed by tempering.
STBA25 (U bend/shape) tube/pipe chemical composition %:
|
Steel Grade |
C max |
Si max |
Mn |
P max |
S max |
Cr |
Mo |
STBA25 |
0.15 |
0.50 |
0.30-0.60 |
0.030 |
0.030 |
4.00-6.00 |
0.45-0.65 |
STBA25 (U bend/shape) tube/pipe tensile strength
|
Steel Grade |
Tensile strength N/mm2 min |
Yield point or proof N/mm2 min |
Elongation % min |
|
STBA25 |
410 |
205 |
22 |
JOIN-WIN STEEL keeps enough quantity STBA25 alloy steel pipes, STBA25 alloy steel tubes, STBA25 alloy U shape steel pipe/tube, STBA25 alloy U bent steel pipe/tube, please contact our sales team to get more information.
