(S)A204 Grade A, (S)A204 Grade B, (S)A204 Grade C alloy steel plate

Source:Yusheng steel

Mo-Alloy steel plate SA204 Grade A,SA204 Grade B,SA204 Grade C,A204 Grade A,A204 Grade B,A204 Grade C which are under steel specification ASME SA204/SA204M and ASTM A204/A204M.All these steel grades are normally used for pressure vessel steel plates,for A204 Grade A and SA204 Grade A pressure vessel steel plate,the minimum yield strength is 255 Mpa,tensile strength within 450-585 Mpa,for pressure vessel steel plate A204 Grade B and SA204 Grade B,the minimum yield strength is 275 Mpa,tensile strength within 485-620 Mpa,for boiler steel plate A204 Grade C and SA204 Grade C,yield strength shall be above 295 Mpa,tensile strength from 515 Mpa to 655 Mpa.

 

For the chemical composition for these three steel grades, A204 Grade A (SA204 Grade A),A204 Grade B(SA204 Grade B) and A204 Grade C(SA204 Grade C),the big different is Carbon contains.Now we give our vast customers our rolling standard properity for steel plate SA204 Grade A as belows

 

Mechanical properties for SA204 Grade A pressure vessel steel plate:

 

Yield strength (Mpa)

Tensile strength (Mpa)

Elongation ,%

255

450-585

19

 

 

 

 

Chemical composition of Heat analysis for SA204 Grade A Nickel-alloy steel plate (Max %):

 

Thickness

C

Si

Mn

P

S

Mo

T25

0.18

0.15/

0.40

0.90

0.035

0.035

0.45/

0.60

25T50

0.21

50T100

0.23

T100

0.25

 

 

 

 

 

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