China Grade:TA1,TA2,TA10,TA12
America Grade:Gr1,Gr2,Gr9,Gr12.
China Standard:GB/T12459 GB/T13401.
America Standard:ASME/ANSI B16.9.
Supply status: sandblasting or pickling.
Dimension range: 10*10*0.8-1.5~~500 * 500 * 10-25.
Chemical composition:
Grade  | N  | C  | H  | Fe  | O  | Al  | V  | Pb  | Mo  | Ni  | Ti  | 
TA1/Gr1  | 0.03  | 0.08  | 0.015  | 0.2  | 0.18  | /  | /  | /  | /  | /  | Balance  | 
TA2/Gr2  | 0.03  | 0.08  | 0.015  | 0.3  | 0.25  | /  | /  | /  | /  | /  | Balance  | 
TA3/Gr3  | 0.05  | 0.08  | 0.015  | 0.3  | 0.35  | /  | /  | /  | /  | /  | Balance  | 
TA4/Gr4  | 0.05  | 0.08  | 0.015  | 0.50  | 0.40  | /  | /  | /  | /  | /  | Balance  | 
TC4/Gr5  | 0.05  | 0.08  | 0.015  | 0.4  | 0.2  | 5.5-6.75  | 3.5-4.5  | /  | /  | /  | Balance  | 
TA9/Gr7  | 0.03  | 0.08  | 0.015  | 0.3  | 0.25  | /  | /  | 0.12-0.25  | /  | /  | Balance  | 
TA18/Gr9  | 0.03  | 0.08  | 0.015  | 0.25  | 0.15  | 2.5-3.5  | 2.0-3.0  | /  | /  | /  | Balance  | 
Main applications: mainly used in heat exchange equipment, such as column pipe type heat exchanger, coil type heat exchanger, snake shape tube type heat exchanger, condenser, evaporator and transmission pipeline, etc.