A678GrA American standard high-strength plate, SA678GrB steel plate fixed rolling, SA678GrB correspo

A678GrA American standard high-strength plate, SA678GrB steel plate fixed rolling, SA678GrB correspo

A678GrA American standard high-strength plate, SA678GrB steel plate fixed rolling, SA678GrB corresponding material

A678GrA American Standard Container Plate High Strength Low Alloy Carbon Steel Plate, Quenched and Tempered

A678GrA/B steel plate fixed rolling: Wugang Xiangyang

Executive standard: ASTM-A678/A678M-05(2009)

ASTM A678 Class B, Class C, Class C

A678GrA mechanical properties:

A678 level

succumb

strength

tensile strength

ksi [MPa]

big

thickness

Inches [mm]

A

50 [345]

70 – 90

40

B

60 [415]

80-100

65

This specification covers quenched and tempered carbon steel and high-strength low-alloy steel plates for structural quality used in welded, riveted, or bolted construction. The plates should be heat treated by heating to the temperature at which the austenitic structure is produced. Thermal analysis and product analysis should be performed on the material and should meet the required chemical composition levels of carbon, manganese, phosphorus, sulfur, silicon, vanadium, collum, nitrogen and copper. The plate should be subjected to tensile test, and the applicable grade should meet the specified mechanical properties such as yield strength, tensile strength, and elongation.

range

1.1 This specification covers quenched and tempered carbon steel and high-strength low-alloy steel plates for the structural quality of welded, riveted or bolted structures.

1.2 If steel is to be welded, it is assumed that a welding process appropriate to the grade of steel and the intended use or service will be used.

When copper steel is specified, the minimum copper content is 0.20%. The maximum thickness is 38 mm. Panels with widths greater than 610 mm were tested transversely and the elongation was required to be reduced by 2%. The following are the recommended consumables for the arc welding process