Ferro Silicon Chromium

1、Introduction of silicon chromium alloy

A ferroalloy composed mainly of silicon, chromium, and ferro. Also known as silicon chromium ferroalloy. It is mainly used as a master alloy for the production of medium, low and micro carbon iron by electrosilicothermal method. Used as deoxidizer (replacing ferrosilicon) and chromium additive in steelmaking. Generally, it contains Cr>30%, Si>35%, and the balance is iron and a small amount of impurities. Classified according to carbon content, such as carbon content ≤0.06%, ≤0.10%, ≤1.0%, etc.

2、Smelting method of silicon chromium alloy

Its production process is divided into two types: one-step method (usually called "slag-containing method" or "ore method") and two-step method (usually called "slag-free method"). The raw materials used in one-step smelting include silica, chromium ore and coke. The raw materials used in the two-step smelting include silica, carbon ferrochrome, and steel scraps. Both smelting methods use coke as the reducing agent.

3、The use of silicon chromium alloy

Silicon-chromium alloy is used as reducing agent and alloying agent in steelmaking and casting, and as reducing agent in refining ferrochromium.

4、Chemical composition of silicon chromium alloy

Grade	Chemical composition %
	Si	Cr	C	P		S
				I	II
	>=		<=
FeCr30Si40-A	40.0	30.0	0.02	0.02	0.04	0.01
FeCr30Si40-B	40.0	30.0	0.04	0.02	0.04	0.01
FeCr30Si40-C	40.0	30.0	0.06	0.02	0.04	0.01
FeCr30Si40-D	40.0	30.0	0.10	0.02	0.04	0.01
FeCr32Si35	35.0	32.0	1.0	0.02	0.04	0.01