STEEL BILLET AQS B500WR

AQS Steel Billet is a carbon steel semi-finished product designed for rolling high-adherence round steel concrete products. The official AQS product page describes billet as a metal section used to roll into bars and profiles, produced either from ingots or directly by continuous casting, and used as raw material for extrusion, forging, rolling, and other metal processing operations. The AQS technical sheet identifies the grade as B500WR and specifies a 150 × 150 mm section, with strict geometric, surface, and macrographic requirements.   

Production Capacity

• 2.2 million tons / year according to the official AQS product page. 

Grade

• B500WR. 

Product Use

• Rolling into bars and profiles

• Raw material for extrusion

• Raw material for forging

• Raw material for rolling

• General downstream metal processing operations. 

Geometric Characteristics

• Length: 12 m ± 30 mm

• Section: 150 mm × 150 mm

• Rhomboidity: D1 − D2 = 8 mm max

• Twist: ≤ 0.8°/m, with 8° max on 12 m billet length

• Comber: ≤ 5 mm/m

• Side dimensions tolerance: ± 2.0%

• Face bulging / depressions for peritectics and rimming steel substituted: ≤ 2.5%. 

Surface and Internal Quality

• Billet macrography: free from internal defects

• Billet surface: free from surface defects. 

Chemical Composition

The technical sheet provides the main B500WR composition ranges:

• C: 0.19 – 0.22%

• Si: 0.15 – 0.30%

• Mn: 0.60 – 0.80%

• P: max 0.045%

• S: max 0.030%

• Cu: max 0.20%

• Ni: max 0.15%

• Cr: max 0.25%

• Mo: max 0.10%

• V: max 0.001%

• Pb: max 0.05%

• N: max 120 ppm

• C-eq: max 0.45

• Liquidus Temperature: 1518°C. 

Trace Elements

• Al: 0.005% max

• As: 0.003% max. 

Manufacturing Process

The technical sheet lists the process as:

• Electric Arc Furnace

• Ladle

• Ladle Furnace

• Continuous Casting. 

Identification

All billets are identifiable using permanent indication of:

• Heat number

• Grade

• Billet number for each heat. 

Standards

The technical sheet states that the billet product meets:

• NA8634/2015

• ISO 6935-2/2015. 

Advantages

• Industrial-grade steel billet

• Strict dimensional control

• Clean surface and internal quality requirements

• Suitable for rolling and downstream steel processing

• Clear permanent identification for traceability

• Produced by a large-capacity steel manufacturer.