ASTM A299 GR.A Mn-Si Alloy Pressure vessel steel plate
Classification :
Keywords:
ASTM A299 GR.A Mn-Si Alloy Pressure vessel steel plate
ASTM A299 GR.A Mn-Si Alloy Pressure vessel steel plate Descriptions:
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.
Chemical Composition and Mechanical Properties:
| A299 Grade A Chemical Composition | ||||||
| Grade | The Element Max (%) | |||||
| C | Si | Mn | P | S | Mo | |
| A299 GR.A | 0.28-0.30 | 0.13-0.45 |
0.84 -1.62 | 0.035 | 0.035 | - |
| Grade | A299 Grade A Mechanical Property | |||
| Thickness | Yield | Tensile | Elongation | |
| A299 GR.A | mm | Min Mpa | Mpa | Min % |
| t≦50 | 275-290 | 515-655 | 19 | |
| 50<t≦200 | 275-290 | 515-655 | 19 | |
- Steel Grade : A 299 Grade A, A 299 Grade B.
- Dimension(T*W*L) : Thickness: 8mm to 300mm ; Width: 1500mm to 4020mm ; Length: 4000mm to 18000mm
- Adopt Standard: ASTM A299 and ASME SA 299.
- Heat Treatment: Hot Rolled, CR, Normalized, Quenched, Tempering, TMCP, Electroslag Remelting Technical.
- Steel Services: Cutting, Painting, Ball blast, Pretreatment and the Third party in section in DNV, BV, LR, GL, ABS and CCS in super thick ship steel plate
ASTM A299 Grade A boiler steel plate,ASME SA299 Grade A pressure vessel steel plate are specification for carbon steel and Manganese-Silicon. As for thin plate SA299 Grade A which produced from steel coil SA299 Grade A and furnished without heat treatment or just with stress relieving only,the additional requirements,including additional testing requirements and the reporting of additional test results shall be applied for A20/A20M steel standard.
Technical Requirements & Additional Services:
- High tension test
- Low temperature impacting test
- Normalised for thick plates over 40mm
- Simulated post-welded heat treatment (PWHT)
- 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
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