| 1.Chemical composition:Si,Fe,Al,Ca,P,S | ||||||||||||
| 2.Type;High,Medium,low,Micro Carbon | ||||||||||||
| 3.Brand:FeCr67C6.0,FeCr55C600,etc | ||||||||||||
| 4.Size: The quality of each piece should not be more than 15kg and its size | ||||||||||||
| range is less than 20mm×20mm. the amount of debris whose size is less than | ||||||||||||
| 20mm×20mm should not exceed 5% of the total quality of this batch of products. | ||||||||||||
| 5.Properties: Chrome is mainly used to improve the antioxidation and | ||||||||||||
| corrosion resistance of steel to make the surface of steel after it is oxidized to | ||||||||||||
| form strong adhension oxide film. Then it stops being oxidized or decelerates | ||||||||||||
| being oxidized. Micro-carbon ferro chrome is applied to making stainless | ||||||||||||
| steel, acid-resistant steel and heat resistant steel. | ||||||||||||
| 6.Package:1Metric Ton per big bag (polypropylene knitted bag). | ||||||||||||
| 7.Chemical Compositions(GB/T3649-1987) | ||||||||||||
| 8.Advantages: | ||||||||||||
| (1)Iimprove the hardness,strength,elasticity and permeability of steel | ||||||||||||
| (2)Lower the hysteresis loss of the transformer. | ||||||||||||
| (3)To prevent the formation of carbides. | ||||||||||||
| (4)Promote the precipitation and nodulization of graphite . | ||||||||||||
| (5)Perfect the performance and nature of casting iron. | ||||||||||||
| (GB/T5683-1987) | ||||||||||||
| Type | Brand | Chemical Compositions(%) | ||||||||||
| Cr | C | Si | P | S | ||||||||
| Scope | Ⅰ | Ⅱ | Ⅰ | Ⅱ | Ⅰ | Ⅱ | Ⅰ | Ⅱ | ||||
| ≥ | ≤ | |||||||||||
| Micro-carbon | FeCr69C0.03 | 63~75 | 0.03 | 1 | 0.03 | 0.25 | ||||||
| Ferro chromium | FeCr55C3 | 60 | 52 | 1.5 | 2 | 0.04 | 0.03 | |||||
| FeCr69C0.06 | 63~75 | 0.06 | 1 | 0.025 | ||||||||
| FeCr55C6 | 60 | 52 | 1.5 | 2 | 0.04 | 0.06 | 0.03 | |||||
| FeCr69C0.10 | 63~75 | 0.1 | 1 | 0.03 | 0.25 | |||||||
| FeCr55C10 | 60 | 52 | 1.5 | 2 | 0.04 | 0.06 | 0.03 | |||||
| FeCr69C0.15 | 63~75 | 0.15 | 1 | 0.03 | 0.025 | |||||||
| FeCr55C15 | 60 | 52 | 1.5 | 2 | 0.04 | 0.06 | 0.03 | |||||
| Low-carbon | FeCr69C0.25 | 63~75 | 0.25 | 1.5 | 0.03 | 0.025 | ||||||
| Ferro chromium | FeCr55C15 | 60 | 52 | 2 | 3 | 0.04 | 0.06 | 0.03 | 0.05 | |||
| FeCr69C0.50 | 63~75 | 0.5 | 1.5 | 0.03 | 0.025 | |||||||
| FeCr55C50 | 60 | 52 | 2 | 3 | 0.04 | 0.06 | 0.03 | 0.05 | ||||
| Medium-carbon Ferro chromium | FeCr69C1.0 | 63~75 | 1 | 1.5 | 0.03 | 0.025 | ||||||
| FeCr55C100 | 60 | 52 | 2.5 | 3 | 0.04 | 0.06 | 0.03 | 0.05 | ||||
| FeCr69C2.0 | 63~75 | 2 | 1.5 | 0.03 | 0.025 | |||||||
| FeCr55C200 | 60 | 52 | 2.5 | 3 | 0.04 | 0.06 | 0.03 | 0.05 | ||||
| FeCr69C4.0 | 63~75 | 4 | 1.5 | 0.03 | 0.025 | |||||||
| FeCr55C400 | 60 | 52 | 2.5 | 3 | 0.04 | 0.06 | 0.03 | 0.05 | ||||
| Medium-carbon Ferro chromium | FeCr67C6.0 | 62~72 | 6 | 3 | 0.03 | 0.04 | 0.06 | |||||
| FeCr55C600 | 60 | 52 | 5 | 0.04 | 0.06 | |||||||
| FeCr67C9.5 | 62~72 | 9.5 | 0.03 | |||||||||
| FeCr55C1000 | 60 | 52 | 10 | 5 | 0.04 | 0.06 | ||||||
