A) High hardness, No breakage, Even wearing B)30 years experience in manufacturing C)go through the certification of ISO9001:2
1.Chemical composition:
NAME | C | Si | Mn | Cr | Mo | CU | P | S | Hardness |
LOW CHROMIUM | 2.2-3.5 | ≤ 1.2 | ≤ 1.5 | 0.8-3.5 | ≤ 1.0 | ≤ 0.5 | ≤ 0.15 | ≤ 0.15 | ≥45 |
MEDIUM CHROMIUM | 2.0-3.3 | ≤ 1.2 | ≤ 1.8 | 4.0-9.0 | ≤ 1.5 | ≤ 1.0 | ≤ 0.15 | ≤ 0.15 | ≥50 |
HIGH CHROMIUM | 1.6-3.3 | ≤ 1.0 | ≤ 2.5 | 10-18 | ≤ 1.0 | ≤ 1.5 | ≤ 0.10 | ≤ 0.10 | ≥55 |
HIGHER CHROMIUM | 2.0-3.3 | ≤ 1.0 | ≤ 2.5 | 22-25 | ≤ 2.0 | ≤ 1.5 | ≤ 0.10 | ≤ 0.10 | 60≥ |
2.production technics
Raw material (waste steel,waste iron) factory inspection - blending - melt- composition inspection- casting- cooling and solidification - demould - clean and polish-inspection-quenching- hardness inspection-tempering-inspection -warehousing
Notes:Only the high chromium have the process of quenching and tempering.But the low and medium chromium have the only tempering process.
3..
Name | chromium Casting grinding steel balls |
Size | 15,17,20,25,from30mm to130mm |
Feature | A) High hardnessB) No breakageC) Even wearingD) Good wear resistanceE) Go through the certification of ISO9001:2000,SGSF) Good quality and reasonable price |
HRC | A)High chromium steel ball(55-60) B)Medium chromium steel ball(50-55) C)Low chromium steel ball(45-50) Notes:the max hardness tolerances is 2HRC. |
Quality standard | ISO 9001:2000 |
Applications | A) Ore developingB) Cement plantC) Power stationD) Chemical industry E) Magnetic materialF) Light industry and papermaking |
|
|
Package | 1) white plastic bags ,1 ton/per one 2) container drum, about 1 ton/per one
|
MOQ | 10Ton |
Payment terms | 1)100% T/T in advance 2)30%T/T in advance +70% irrevocable L/C at sight |
Delivery | usually 20 days for one 20ft container |
Port of shipment | Qingdao |
Output per year | More than 6000 tons |
casting grinding chromium steel ball
