A588 Gr.A, A588 Gr.B, A588 Gr.C steel

A588 Gr.A, A588 Gr.B, A588 Gr.C Introduction:
A588 is an American standard weathering steel grade. The three grades of A588 grades are A, B, and C. They are often used in buildings, large factories or waiting halls, large exhibition venues, etc.

The production thickness ranges from 8mm to 200mm, and the A588 series of high weathering bridge structural steel plates include A588 Gr.A, A588 Gr.B, A588 Gr.C, etc.

Chemical composition of A588:
C: ≤0.19%, Si: 0.30%-0.65%, Mn: 0.8%-1.25%, P: ≤0.03%, S: ≤0.03%, V: 0.02%-0.1%, Cr: 0.4%-0.65%, Ni: ≤0.4%, Cu: 0.25%-0.4%.

A588 rolling process:
Production process: electric furnace smelting → LF/VD furnace refining → casting → steel ingot cleaning → steel ingot heating → plate rolling → finishing → cutting and sampling → performance inspection → storage

A588 Mechanics Features:
Tensile strength MPa: ≥ 485; Yield strength MPa: ≥ 348; Elongation after fracture %: ≥ 21

A588 Delivery Status:
Delivered in hot-rolled state or normalized, tempered, normalized + tempered, quenched and tempered and other heat treatment states.

A588 ultrasonic flaw detection:
A588 is the American standard. The ultrasonic testing standard may be in accordance with the American standard A578 testing standard, and the surface is not allowed to have cracks, bubbles, etc.

A588 use:
A588GrB, A588GrA, A588GrC are commonly used in construction and various construction machinery, such as drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mines Hydraulic supports and other mechanical equipment and other structural parts, or used for construction in harsh climates, or for waiting hall construction, steel structure welding.

A588 set rolling requirements:
A588 is produced in accordance with ASME standards. The steel plate specification range is ultimately determined by the manufacturer's steel plate rolling mill. Take Wugang as an example. Wugang is famous for its wide and thick plates and varieties of steel. The production thickness is between 8mm and 700mm. Within 4020mm, if it exceeds the specified range, it needs to be reviewed by various departments, and the rolling can only be determined after passing.

---