This standard specifies the technical requirements, test methods, inspection rules, packaging, storage, transportation, marking and quality certificate of silicon-barium alloy. This standard is applicable to silicon-barium alloy used as deoxidizer, desulfurizer and casting inoculant in steelmaking. GB/T 15710-1995 Silicon-barium alloy GB/T15710-1995 Standard download decompression password: www.bzxz.net

GB/T 15710-1995
Silicon-barium alloy is a ferroalloy with high activity. When added to steelmaking, it can reduce the occurrence of smoke and flames, change the properties and distribution of non-metallic inclusions in steel, improve the cutting performance of general metals, and show good anti-degradation and reduced cross-section sensitivity in casting production. It is a long-term and efficient inoculant in cast iron production. The use of silicon-barium alloy is better and more economical than the use of pure aluminum, silicon-titanium, silicon-calcium and other single alloys. Silicon alloy is also very beneficial in the production of ferroalloys. Silicon-barium alloy has a wide range of uses. The formulation of this standard is to seek unity, regulate the market, promote technological progress, and meet the needs of production and use. This standard is proposed by the Ministry of Metallurgical Industry of the People's Republic of China. This standard is under the jurisdiction of the Information Standards Research Institute of the Ministry of Metallurgical Industry. This standard is drafted by Emei Ferroalloy (Group) Co., Ltd. The drafting responsible persons of this standard are Yuan Guode, Yao Pengquan, Liu Qinghai, Xu Yongqing, and this standard is about to be issued.
1 Scope
National Standard of the People's Republic of China
Silicon barium alloy
Sllicon barium alloy
GB/T 15710—1995
This standard specifies the technical requirements, test methods, inspection rules, packaging, storage, transportation, marking and quality certificate of silicon alloy. This standard is applicable to silicon barium alloy used as deoxidizer, desulfurizer and casting inoculant in steelmaking. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using the standards should explore the possibility of using the latest versions of the following standards. GB/T3650—1995 General provisions for acceptance, packaging, storage, transportation, marking and quality certificate of ferroalloys GB/T4010-1994 Collection and preparation of samples for chemical analysis of ferroalloys 3 Technical requirements
3.1 Grades and chemical composition
3.1.1 Silicon alloys are divided into seven grades according to the content of silicon and silicon. Their chemical composition should comply with the provisions of Table 1. Table 1 Chemical composition
Chemical composition, % wwW.bzxz.Net
FeBa30Si35
FeBa25Si40
FeBa20Si45
FeBa15Si50
FeBal0Si55
FeBa5Si60
FeBa2Si65
Not less than
Note: Ba and Si are required elements.
3.1.2 The buyer has special requirements for chemical composition, which shall be agreed upon by both parties. 3.2 Physical state
Approved by the State Administration of Technology Supervision on October 10, 1995 Mn
Not too dry
Implemented on March 1, 1996
3.2.1 Particle size
GB/T 15710-1995
The delivery particle size of silicon-barium alloy is 10mm~100mm, of which the particle size less than 10mm shall not exceed 8% of the total amount and the particle size greater than 100mm shall not exceed 5% of the total amount.
3.2.2 The buyer has special requirements for particle size, which shall be agreed upon by both parties. 3.2.3 The product surface is clean and there shall be no obvious non-metallic inclusions. 4 Test methods
4.1 Sampling and sample preparation
Samples for analysis of silicon-barium alloy shall be collected and prepared in accordance with the provisions of sampling and sample preparation for silicon-calcium alloy in CB/T4010. 4.2 Chemical analysis
The chemical analysis method of silicon-barium alloy shall be determined by negotiation between the supplier and the buyer. 5 Acceptance rules
5.1 The quality inspection and acceptance of products shall be carried out by the technical supervision department of the supplier. The buyer has the right to re-inspect the product quality in accordance with the regulations. If there is any objection, it shall be raised within 10 days after arrival.
5.2 Batch
Products of the same brand shall be delivered as one batch, and the fluctuation range of barium content in the same batch of products shall not exceed 2%. 6 Packaging, storage, transportation, marking and quality certificate 6.1 Packaging
Silicon-barium alloy products are packed in bags or iron drums, both of which must be lined with moisture-proof packaging, and the net weight of each piece is 50kg. 6.2 Storage and Transportation
Products should be stored in warehouses and be well ventilated and moisture-proof. Covered wagons should be used for shipment. Water and other debris are strictly prohibited. 6.3 Marking and Quality Certification
Product marking and quality certification should comply with the requirements of GB/T3650.
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