GB/T 30898-2025Scrap steel from slag for steelmaking (English PDF)

Foreword

This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.

This document serves as a replacement for GB/T 30898-2014 Scrap Steel from Slag for Steelmaking and GB/T 30899-2014 Selected Luppen for Smelt. This document integrates and revises the contents of GB/T 30898-2014 and GB/T 30899-2014.The main technical differences between this document and the original documents are as follows.

a) For the integration and revision, Table 1 in GB/T 30899-2014 and Table 1 in GB/T 30898-2014 are merged into a new table 1 (see Table 1);

b) The Scope is modified (see Chapter 1);

c) The classification of scrap steel from slag, the range of total iron content in scrap steel from slag, and the impurity content in scrap steel from slag are modified and refined (see Table 1);

d) The test methods are modified (see Chapter 6) (TRANSLATOR NOTE. it should be Chapter 5).

Please be noted that certain content of this document may involve patents. The issuing institution of this document does not undertake the responsibility of identifying these patents.

This document was proposed by China Iron and Steel Association.

This document shall be under the jurisdiction of National Technical Committee 183 on Steel of Standardization Administration of China (SAC/TC 183).

The drafting organizations of this document. Jiangsu Shagang Co., Ltd.; Central Research Institute of Building and Construction Co., Ltd. MCC Group; Maanshan Iron & Steel Co., Ltd.;

Shougang Steel Qianan Iron & Steel Co., Ltd.; Hangzhou Xiruidi Technology Co., Ltd.; China Metallurgical Information and Standardization Institute; Shougang Jingtang Limited Iron & Steel Co., Ltd.; Shandong Laigang Yongfeng Iron & Steel Co., Ltd.; Jiangsu Binxin Steel Group Co., Ltd.; Anhui University of Technology; Hangzhou Ruikun Information Technology Co., Ltd.

The main drafters of this document. Mao Rui, Zhu Zuoqiao, Qiu Jinhui, Yao Haiwei, Sun Yonglin, Zhou Jian, Wang Guochuan, Lin Tao, Liu Zhentong, Wu Jianzhong, Luo Zhenyong, Zhang Liangliang, Liu Dong, Yuan Zhongjia, Wang Jiangwei, Lv Wen, Zhang Yali, Wang Xiaojie, Chen Jian, Pan Na, Wang Tongbin, Zhang Ruopeng, Han Shiguo, Wang Lixia, Yu Jingyao, Du Hongtao, Liu Xiuxiu, Zhang Yuanchun, Li Canhua, Wang Kun, Du Gang.

This document was first issued in 2014; this is the first revision, which integrates GB/T 30899- 2014.

Scrap Steel from Slag for Steelmaking

1 Scope

This document specifies the technical requirements, inspection rules, storage, transportation, and quality certificate for scrap steel from slag for steelmaking and describes the corresponding test methods.

This document applies to scrap steel from slag for steelmaking.

2 Normative References

GB/T 223.7

GB/T 223.59

GB/T 223.85

GB/T 10322.7

3 Terms and Definitions

The terms and definitions defined in YB/T 804 and the following are applicable to this document.

4 Technical Requirements

Scrap steel from slag is divided into three types. magnetic powder from steel slag, small scrap steel from slag, and big scrap steel from slag. The technical indicators of scrap steel from slag shall conform to the provisions of Table 1.

5 Test Methods

5.1 The determination of TFe content shall be performed in accordance with the provisions of GB/T 223.7 or YB/T 148. ......