ASTM A204 Grade A used for boiler and pressure vessels
ASTM A204 Grade A is a kind of Mo-alloy steel material used to fabric high temperature pressure vessels.
A204 this property is based on it's Mo composition. ASTM A-204/A-204M A204 has three grades or levels-- Grade A/B/C.
A204 steel grade specification covers molybdenum alloy, intended particularly of welded boilers and others pressure vessels steel
plate in A204 Gr. A,A204 Gr .B and A204 Gr .C.

ASTM A204 Grade A Supplementary Technology:
HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4.1 S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17

ASTM A204 Grade A steel chief application:
ASTM A204 Grade A pressure vessel steel?is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the
reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied
petroleum, hydropower station, high pressure pipe.