ASTM A192 Seamless Carbon Steel Boiler Tubes for High Pressure Boilers
Material: Carbon Steel
Production: Tubes are manufactured by seamless process and both hot finished and cold finished are applicable.
Size range: O.D.: 12.7-177.8mm W.T.: 1-25.4mm L: according to customer requirement
Applications:
for Boilers,Superheaters,
Heat-Exchangers,
High-pressure Boilers,
Steam Boilers
Cold Condensers and High-Pressure Services,
High-Temperature Services for Boiler Constructions
Heat treatment:
Hot finished tubes need not be heat treated.
Cold Finished tubes are heat treated after the final cold finishing pass at a temperature of 1200℉(650℃) or higher
Steel Grade and Chemical Compositions:
C | 0.06-0.18 |
Mn | 0.27-0.63 |
P | ≤0.035 |
S | ≤0.035 |
Si | ≤0.25 |
Mechanical Properties
Tensil Streghth: min ksi[Mpa] 47[325]
Yield Point: min ksi[Mpa] 26[180]
Elongation: ≥35%
Hardness
Brinell Hardness | Rockwell Hardness Number |
WT≥0.200in(5.1mm) | WT<0.200in(5.1mm) |
137HRB | 77HRB |
Tests and Inspection:
Mechanical Testing:
Flattening Test
Flaring Test
Flange Test
Hardness Test
Hydrostatic Test