ASTM A515 GR 70 steel plate

ASTM A515 specification covers carbon-silicon steel plates primarily for intermediate- and higher-temperature service in welded boilers and other pressure vessels. Plates are available in three grades having different strength levels: Grade 60; Grade 65; and Grade 70. The steel shall be killed and made to a coarse austenitic grain size practice. The steel shall conform to the chemical requirements specified. Tension test shall be made to conform to the requirements specified.

ASTM A515 GR 70 specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel 

 A515 GR 70 Chemical composition % of the Product analysis of grade

5.       A515 GR 70 Mechanical Property

ASTM A515 GR 70 plates 40mm and under in thickness is normally supplied in the as-rolled condition. The plates may be ordered normalized or stress relieved, or both. ASTM A515 GR 70 grade plates over 50mm in thickness shall be normalized.

• Thickness: 6mm to 300mm
• Length: 3000mm to 15000mm
• Width: 1500mm to 3050mm
• Application: Pressure vessel plate, Boiler plate for high temperature service
• Supplementary Technology: Annealing, normalizing plus tempering, or when the buyers agreed, Using blast or liquid quenching method accelerated cooling from austenitizing temperature, followed by tempering.
• Surface: Coated or Shot Blasting and Painting
• Delivery state: Hot Rolled, Cold Rolled
• Steel Grade available: Grade 60, Grade 65, Grade 70