A204 Grade A STEEL PLATE

Steel standard ASTM A204/A204M which specification for pressure vessel steel plates,molybdenum alloy A204 Grade A,A204GrA steel plate,A204GrA steel sheet.For thickness equal and under 40mm,A204 Grade A steel plate for boiler shall be supplied normally in the as-rolled delivery condition.The plates also may be ordered in Normalised or stress relieved or both.For thickness above 40mm,pressure vessel steel plate A204 Grade A shall be in Normalised heat treatment. 

Technical Requirements & Additional Services for A204 Grade A STEEL PLATE:
♦  High tension test
♦  Low temperature impacting test
♦  Normalised for thick plates over 40mm
♦  Simulated post-welded heat treatment (PWHT)
♦  Rolling under standard NACE MR-0175 (HIC+SSCC)
♦  Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦  Shot blasting and Painting,Cutting and welding as per end user’s demands

 ► Mechnical property for A204GrA steel plate:

Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
255	450-585	200mm	50mm
		19	23

 
►Chemical composition for A204 Grade A steel plate (Heat Analysis Max%)

Main chemical elements composition of A204 Grade A steel plate
Thickness(mm)	C	Si	Mn	P	S	Mo
T≤25	0.18	0.15-0.40	0.90	0.035	0.035	0.45-0.60
25<T≤50	0.21
50<T≤100	0.23
T>100	0.25