A203 Grade B STEEL PLATE

A203 Grade B,A203GrB steel plate,A203GrB steel sheet with minimum yield strength at 275 Mpa,higher than A203 Grade A pressure vessel steel plate at 255 Mpa,and tensile strength shall be above 480 Mpa for steel plate SA203 Grade B.Ultrasonic examination for pressure vessel steel plate A203 Grade B,there are A 435/A 435M,A 577/A 577M,A 578/A 578M and A578/A578M including three levels,A578-A,A578-B,A578-C.

Technical Requirements & Additional Services for A203GRB steel plate:
♦ High tension test
♦ Low temperature impacting test
♦ 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 A203 Grade B steel plate:

Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
275	485-620	200mm	50mm
		17	21

►Chemical composition for A203 Grade B steel plate (Heat Analysis Max%)

Main chemical elements composition of A203 Grade B steel plate
Thickness(mm)	C	Si	Mn	P	S	Ni
T≤50	0.21	0.15-0.40	0.70	0.035	0.035	2.10-2.50
50<T	0.24		0.80