400 Durezza Brinell

400 Durezza Brinell

Steels with 400 Durezza Brinell combinare elevata resistenza all'abrasione, moderate toughness, e saldabilità, making them essential for industries that deal with extreme wear and moderate impact loads. Selecting the right type—whether high-manganese, spento e temperato, alloyed steel, or hardfaced composite—ensures optimal performance, longer equipment life, and reduced maintenance costs.

Categoria: Serie NM

Descrizione

Steel with a 400 Durezza Brinell (HBW) is classified as a acciaio resistente all'usura ad alta durezza. With excellent resistance to abrasion and impact, this steel is widely used in minerario, costruzione, material handling, e macchinari pesanti industrie.

1. Characteristics of 400 Brinell Hardness Steel

Elevata resistenza all'usura: Ideal for environments with continuous friction, abrasive materials, or heavy load.
Moderate toughness: While extremely hard, steels with 400 HB maintain sufficient toughness to resist cracking under moderate impact.
Versatile processing: Can be welded, taglio, and fabricated into plates, fodere, e componenti.
Abrasion resistance: Can withstand severe sliding and abrasive wear without excessive material loss.

2. Common Types of Steel with 400 HB

UN. Acciaio ad alto contenuto di manganese (Acciaio Hadfield)

Manganese content: ~12–14%
Work-hardening property: The surface becomes harder under impact.
Applicazioni: Attrezzature minerarie, frantoi, benne per escavatori, fodere per carichi pesanti.

b. Quenched and Tempered Wear-Resistant Steel

Esempi: AR400, Q&T steel grades
Manufactured via heat treatment to achieve uniform hardness of 400 HB.
Applicazioni: Conveyor plates, piastre di usura, cade, tramogge, fodere per autocarri con cassone ribaltabile.

C. Cromo legato o acciaio al carbonio

Alloyed with chromium or carbon to enhance surface hardness.
Offers good resistance to abrasion while maintaining weldability.
Applicazioni: Mining and construction machinery components, tagliare i bordi, and impact surfaces.

D. Composite or Hardfacing Steel

Steel substrate with a hardfacing overlay containing carbide (Cr, W, N.B).
Achieves localized 400 HB hardness in wear areas while retaining toughness in the base metal.
Applicazioni: Heavy-duty liners, crusher plates, pompe per liquami, tramogge, e scivoli.

3. Applicazioni di 400 Acciaio HB

Steel with 400 Brinell hardness is ideal for environments involving:

Mining e cava: Mascelle del frantoio, rivestimenti di macinazione, denti di secchio, cade, and hoppers.
Costruzione & Attrezzatura pesante: Lame del bulldozer, excavator components, earthmoving tools.
Gestione del materiale: Fodere per trasportatori, wear plates for abrasive material transport.
Industrial Machinery: Slurry pumps, pale del miscelatore, and high-wear contact surfaces.