ASTM A204 Gr.B 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 Gr.B 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 Gr.B steel Mechanical Properties:

Grade	Tensile Strength kis [MPa]	Yield Strength min, kis [MPa]	Elongation in 8 in. [200 mm], min, %	Elongation in 2 in. [50 mm], min, %
A204 Gr B	70-90 [485-620]	40 [275]	17	21

ASTM A204 Gr.B steel chief application:
ASTM A204 Gr.B 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.
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