ASTM A204-A alloy steel sheet for pressure vessel application

ASTM A204-A alloy steel sheet for pressure vessel application 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 has three grades or levels-- Grade A/B/C. ASTM A204-A alloy steel sheet for pressure vessel application 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 is used in fabricators serving industry, especially in the oil, gas and chemical supply markets.
Supplementary Technology:   HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4.1
S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17
Chemical composition(%):
C:0.18-0.25 Si:0.13-0.45 Mn:0.90-0.98 P≤0.035 S≤0.035 Mo:0.45-0.60
Mechanical property:
Tensile strength,kis(MPa)65-85(450-585)
Yield strength,min,kis(MPa):37(255)
Elongation in 8 in.(200mm),min,%:19
Elongation in 2 in.(50mm),min,%:23
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