South African chrome ore nuggets for foundry
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$409.50 / 1 - 24 pieces
$336.00 / >=25 pieces - 1 piece
- Zhengzhou Haixu Abrasives Co., Ltd.
- Henan, China
- Ms pan chen
Product Detail
| Advantage: | Alkali resistance | Moisture (%): | 0.01% |
| size: | AFS15-20~AFS60-65 | hardness: | Mohs 5.5-6 |
| Origin: | South Africa | type: | fine |
| port: | Tianjin, Qingdao, Yiwu, Shanghai, Guangzhou | Packaging Details: | 1.25kg woven bag, 40pcs woven bag/big bag 2.25kg woven bag, 40pcs woven bag/tray 3.25kg paper bag, 40pcs paper bag/tray 4.25kg paper bag, 40pcs paper bag/carton 5. Customized packaging |
| brand: | Hai Xu gold-plated | Supply capacity: | 888 tons per month |
| product name: | South African chrome ore nuggets for foundry | application: | casting |
| Certificate: | ISO9001:2008 | Concentrated or not: | non-concentrated |
| color: | bright black | Melting point: | >1800℃ |
| model: | AFS15-20~AFS60-65 | delivery time: | 3-10 days |
| Cr2O3 (minimum): | 46% | Package preview: | |
| chemical composition: | 46% Chromium trioxide | Bulk density: | 2.5-3 g/cm3 |
| payment terms: | L/C, Western Union, D/P, D/A, T/T, MoneyGram | pH: | 7-9 |
Product Description
South African chrome ore nuggets for foundryAlso known as chromite sand, it is a special sand for casting. It is a natural spinel mainly composed of chromite. After crushing, grinding, and screening, it is divided into specified particle sizes, which is suitable for molding (core making) sand. Chromium ore can be divided into primary Cr2O3 (>45%) and secondary Cr2O3 (>35%) according to chemical composition.
feature:
1. Heating volume stability
2. High thermal conductivity
3. Strong alkali resistance
4. Solid phase sintering, non-sticky sand
2. High thermal conductivity
3. Strong alkali resistance
4. Solid phase sintering, non-sticky sand
Specification
chemical composition | ||
Chromium trioxide | ≥46.0% | |
silica | ≤1.0% | |
iron oxide | ≤26.5% | |
Calcium Oxide | ≤0.3% | |
magnesium oxide | ≤10% | |
Aluminum oxide | ≤15.5% | |
P | ≤0.003% | |
small | ≤0.003% | |
Chromium/Fe | 1.55:1 | |
Typical Physical Properties | ||
hardness: | Mohs: 5.5-6 | |
Melting point: | Sublimation at 2180℃ | |
Sintering point: | >1800℃ | |
Sintered | 1600℃ | |
proportion: | 4.0-4.8 g/cm3 | |
Bulk Density (LPD): | 2.5-3 g/cm3 | |
color: | Black | |
pH | 7-9 | |
Percentage of free acid in sand | 0% | |
amount of acid | ≤2ML | |
soil percentage | ≤0.1 | |
Moisture percentage | ≤0.1 | |
available size | ||
AFS15-20, AFS15-25, AFS25-35, AFS25-30, AFS30-35, AFS35-40, AFS40-45, AFS45-50, AFS40-50, AFS50-55, AFS55-60, AFS60-65 customized size available available on request | ||
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