Forged steel ball

Forged steel ball

【Introduction】:

The Forged ball is made by direct heating at high temperature and forging, and it do not need melting and casting. So this steel ball is called Forged steel ball.

Advantages

1. The defects produced in smelting process will be eliminate by forging which optimizes the microstructure and preserve the integrity of metal flow. Forging mechanical performance is better than that of the same material casting.

2. The wear-resistance of Forged steel ball completely depends on the material. Xinhai wear-resistant steel ball adopts excellent quality steel which has the advantages of good impact resistance, strong toughness, and good wear resistance, etc.

Application

Iron ore, copper, gold, Cu-Pb-Zn and other wet grinding field.

Production Process Flow of Forging Steel Ball

Inspection of raw materials–Heating and melting of Intermediate frequency furnace—Spin into ball — Quenching—-Tempering—-Testing—Package

The mechanical properties of forged steel balls

Diameter of Steel  Ball (MM) A Material B Material C Material D Material
Core Hardness Internal Hardness Impact Index Core Hardness Internal Hardness Impact Index Core Hardness Internal Hardness Impact Index Core Hardness Internal Hardness Impact Index
φ25 60-65 58-63 ≥12J/CM2  —  —  —  —  —  —  —  —  —
φ30 60-65 55-60 ≥12J/CM2  —  —  —  —  —  —  —  —  —
φ35 60-65 55-60 ≥12J/CM2  —  —  —  —  —  —  —  —  —
φ40 60-65 55-63 ≥12J/CM2 60-65 60-65 ≥12J/CM2  —  —  —  —  —  —
φ50 60-65 45-50 ≥12J/CM2 60-65 60-65 ≥12J/CM2  —  —  —  —  —  —
φ60 60-65 42-47 ≥12J/CM2 60-65 60-65 ≥12J/CM2  —  —  —  —  —  —
φ70 60-65 40-45 ≥12J/CM2 60-65 60-65 ≥12J/CM2  —  —  —  —  —  —
φ75 60-65 40-45 ≥12J/CM2 60-65 60-65 ≥12J/CM2  —  —  —  —  —  —
φ80 60-65 37-42 ≥12J/CM2 60-65 60-65 ≥12J/CM2  —  —  —  —  —  —
φ90 60-65 37-42 ≥12J/CM2 58-63 52-60 ≥12J/CM2  —  —  —  —  —  —
φ100 58-63 37-42 ≥12J/CM2 53-58 42-58 ≥12J/CM2 58-62 58-60 ≥14J/CM2 60-65 60-65 ≥14J/CM2
φ110 55-63 35-40 ≥12J/CM2 53-58 45-50 ≥12J/CM2 58-62 58-60 ≥14J/CM2 60-65 60-65 ≥14J/CM2
φ120 55-63 35-40 ≥12J/CM2 53-58 45-50 ≥12J/CM2 55-62 58-60 ≥14J/CM2 60-65 60-65 ≥14J/CM2
φ125 50-55 35-40 ≥12J/CM2 53-58 45-50 ≥12J/CM2 55-62 52-58 ≥14J/CM2 60-65 58-63 ≥14J/CM2
φ130 50-55 35-40 ≥12J/CM2 53-58 40-45 ≥12J/CM2 55-58 50-55 ≥14J/CM2 60-65 58-63 ≥14J/CM2
φ140  —  — ≥12J/CM2 53-58 40-45 ≥12J/CM2 55-58 45-55 ≥14J/CM2 60-65 55-60 ≥14J/CM2
φ150  —  — ≥12J/CM2 53-58 40-45 ≥12J/CM2 55-58 40-45 ≥14J/CM2 60-65 53-58 ≥14J/CM2

Try to improve the hardness until the ball is broken.

The ball with diameter 100mm is used in impact fatigue test; the test height is 7.5m; the impact times of the ball with other diameter are calculated by this formula.

N=10000×100/D, N is test time, and D is diameter