High chrome alloy casting ball-High chromium alloy cast ball-Trlaino (Jiangsu) Precision Industry Trade Co., Ltd

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product name

High chrome alloy casting ball

Product Description: Casting ball is widely used in cement, metal mining, power plant and chemical industry etc. The hardness reaches up to 64HRC(the surface and inner hardness tolerance with in 3HRC unit), which makes the wear-resisting property much better than forged ball, in addition the distribution of the hardness gradient is average. The property- low wear rate, good toughness and less breakage, prolongs its life, improves the productivity of the ball mill, and lowers user’s cost. Our quality is accord with GBT17445-2009 China national standard.

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Features

Processing Technique

Intermediate frequency furnace smelting high-quality steel scraps and mix chromium based on requirement.

Constant temperature casting process ensuring the quality, no solid nonmetallic impurity, no pore, no mal-roundness etc..

Oil-immersed quench harden treatment enhance the hardness, annealing process changing the internal organizational structure,

lowering the breakage, and improving the performance.

After the Pre-furnace test, semi-finished products and finished products inspection was done by advanced spectrometer and

durometer imported from Germany.

Chemical Elements

Name	Chemical Elements (%)
Name	C	Si	Mn	Cr	Mo	Cu	P	S
Normal High Cr	2.0-3.3	≤1.2	0.3-1.5	10-13	0-3.0	0-1.2	≤0.1	≤0.06
Special High Cr	2.0-3.3	≤1.2	0.3-1.5	15-23	0-3.0	0-1.2	≤0.1	≤0.06

Physical Property & Microstructure

Name	HRC	Ak(J/cm2)	Microstructure	Times of Falling Balls
Normal High Cr	≥60	≥4	M+C+A	≤Φ80	≥15000
				≥Φ80	≥10000
M-Martensite C-Carbide A-Austenite

Size & Weight

Size(mm)	Weight(kg/pc)	Quantity(pc/t)	Size(mm)	Weight(kg/pc)	Quantity(pc/t)
Φ30	0.11	9091	Φ90	2.90	345
Φ40	0.25	3891	Φ100	4.00	250
Φ50	0.50	2000	Φ110	5.30	188
Φ60	0.86	1153	Φ120	6.80	147
Φ70	1.37	729	Φ130	7.70	129
Φ80	2.05	487	Φ140	8.74	114

Scope of application

High chromium alloy cast balls, abbreviated as high chromium balls, are widely used in powder preparation and ultrafine deep processing in industries such as dry cement building materials, metal mines, coal slurry thermal power, chemical engineering, ceramic coatings, light industry papermaking, and magnetic materials.