Forged steel ball

【Introduction】:

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
Diameter of Steel Ball （MM）	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