Astm A299

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ASTM A299 Boiler Steel Plate

About ASTM A299 Steel Plate

  • Thickness: 5-100mm
  • Length: 1220-4200mm
  • Width: 5000-18000mm
  • Application: welded boiler steel plate, pressure vessel plate
  • Supplementary Technology: UT , AR( TMCP, N, Q+T, Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, HIC test, NDT ,PWHT, NACE0175, The Third Party Test (Such as SGS Test).
  • Surface: Coated or Shot Blasting and Painting
  • Delivery state: Hot Rolled, Cold Rolled
  • Steel Grade: Grade A, Grade B

Product Scope:

ASTM A299 specification covers manganese-silicon carbon steel plates for use in welded boilers and other pressure vessels. Plates under this specification are produced in two grades (A, B). Yield and tensile strength of Gr. B is higher than Gr. A. Due to high composition of C, Mn, Si. ASTM A299 is widely used for manufacturing pressure and boiler equipments. Plates of this standard under this thickness of 50 mm are normally supplied in as-rolled condition. Plates may be ordered normalized or stress relieved, or both. Plates over 50 mm in thickness shall be normalized.

ASTM A299 Chemical Composition:

ASTM A299 Grade Chemical Composition
Steel 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 -
A299 GR.B 0.28-0.30 0.13-0.45 0.84 -1.62 0.035 0.035 -

ASTM A299 Mechanical Property:

Steel Grade ASTM A299 Mechanical Property
Thickness mm Yield Min Mpa Tensile Mpa Elongation Min  %
A299 GR.A t≦50 275-290 515-655 19
50<t≦200 275-290 515-655 19
A299 GR.B t≦50 310-325 550-690 19
50<t≦200 310-325 550-690 19

ASTM A299 Equivalent Steel Grade:

Steel Grade Germany Italy
A299 T St E 255 Fe 3602 KG

If you are interested in buying ASTM A299 steel plate products, contact us now for the latest price or check the following table for equivalent steel grade of ASTM A299.

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