Executive standard for the product is YB/t09-2005 forging steel balls
forging steel balls application fields: Industries of cement building material, metallurgical selection in mine, grinding coal in power plant,chemical industry and machinery,etc.
Chemical elements
C | Si | Mn | Cr | S | P |
0.5~0.65 | 0.15~0.37 | 0.6~1.2 | ≤0.25 | ≤0.04 | ≤0.04 |
Specification and hardness of froging ball
Nominal diameter (mm) | Diameteical tolerance (mm) | Weight of single forging ball in average (g) | Number of piece of one ton forging ball in average | Surface hardness (HRC) | Impact toughness (j/cm2) |
φ20 φ25 φ30 φ40 φ50 | +2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 | 50~65 | ≥12 |
φ60 φ70 φ80 φ90 φ100 | +3 -2 | 888 1410 2104 2996 4110 | 1126 709 475 333 243 | 50~60 | |
φ110 φ120 φ130 | +4 -2 | 5457 7102 9030 | 182 140 110 | 45~60 | |
φ140 φ150 | +4 -3 | 11278 13871 | 88 72 |
forging steel balls
