SA299A/B Pressure Vessel Steel Pate

 

Carbon steel with Manganese-Silicon plate SA299 Grade A,SA299 Grade B under steel specification standard ASME SA 299/SA 299M.There are other two steel grades A299 Grade A and A299 Grade B owned the similar steel properity which is according to ASTM A 299/A 299M.As for the heat treatment, steel plate A299 Grade A and A299 Grade B equal and under 50 millimeter are normally rolled in the as-rolled condition,pressure vessel steel plate.

 

According to ASTM A299/A299M standard, steel plate A299 Grade A and A299 Grade B shall be chosed in the following technical conditions: S1.Vacuum treatment, S2. Product analysis. S3. Simulated post weld heat treatment of mechanical test coupons, S4. Additional tension test, S5. Charpy V-notch impact test, S6. Drop weight test, S7. High temperature tension test.

 

 

Mechanical properties:

 

 

Thickness

Yield strength (Mpa)

Tensile strength (Mpa)

Elongation ≥,%  200mm

T≤25

325

550-690

16

T＞25

310

 

 

Chemical Composition (Max %):

 
 
CSiMnPS Ni Cr Mo Nb Cu Al
 0.28 0.15-0.40 0.90-1.50.0200.0100.25 0.25 0.10 0.02 0.25 0.20 

 

 

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