GB/T 5680-2023Austenitic manganese steel castings (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 of GB/T 5680-2010 Austenitic Manganese Steel

Castings. In comparison with GB/T 5680-2010, apart from structural adjustments and editorial

modifications, the main technical changes are as follows.

a) The expression method of five designations is modified (see Table 1; Table 1 of

Version 2010);

b) A designation of chromium-molybdenum austenitic manganese steel casting is added

(see Table 1);

c) The tensile properties and impact properties of some designations of manganese steel

specimens are added (see Table 2);

d) Metallographic structure and the corresponding test methods and inspection rules are

added (see 6.4, 7.3 and 8.8);

e) Room-temperature tensile properties and impact properties, and the corresponding

test methods and inspection rules are added (see 6.6, 7.4 and 8.9);

f) Bending properties and the corresponding test methods and inspection rules are added

(see 6.6, 7.5 and 8.10);

g) Test blocks are added to the inspection rules (see 8.4);

h) The validity of tests is added to the inspection rules (see 8.5);

i) Appendix A and Appendix B of Version 2010 are deleted (see Appendix A and

Appendix B of Version 2010).

This document modifies and adopts ISO 13521.2015 Austenitic Manganese Steel Castings.

In comparison with ISO 13521.2015, this document has many structural adjustments. See

Appendix A for a table of comparison of structural No. changes between the two documents.

In comparison with ISO 13521.2015, this document has many technical differences, which are

marked with a vertical single line () in the outer margin of the clauses involved. See Appendix

B for a table of these technical differences and the reasons for these differences.

Please be noted that certain content of this document may involve patents. The institution

issuing this document does not undertake the responsibility of identifying these patents.

This document was proposed by and shall be under the jurisdiction of National Technical

Committee 54 on Foundry of Standardization Administration of China (SAC/TC 54).

The drafting organizations of this document. Jinan University; Zhengzhou Dingsheng High-

tech Energy Engineering Technology Co., Ltd.; Zhejiang Huasheng Metal Products Co., Ltd.;

Zhejiang Wujing Machinery Manufacturing Co., Ltd.; Harbin Bo Shen Technology

Development Co., Ltd.; Guangdong Torch Test Co., Ltd.; Jiangxi Copper Group (Dexing)

Casting Co., Ltd.; Guangxi Great Wall Machinery Co., Ltd.; Zhejiang Yu Rong Industries Co.,

Ltd.; Shaoguan Qujiang Jinyang Wear-resistant Materials Co., Ltd.; Zhongtie Baoqiao Group

Co., Ltd.; Hunan Zijing New Material Technology Co., Ltd.; Chengde Rongmao Cast Steel Co.,

Ltd.; Sanming Jinsheng Special Steel Co., Ltd.; Ningguo Dongfang Milling Material Co., Ltd.;

Yunnan Kungang Wear-resistant Material Technology Co., Ltd.; Shaoguan Qirui

Environmental Protection Equipment Co., Ltd.; Guangdong Jin Zhi Li Technology Co., Ltd.;

Shandong Tianli Machinery Casting Co., Ltd.; Zhejiang Kaicheng Foundry Co., Ltd.; Shenyang

Research Institute of Casting.

1 Scope

This document specifies the order information, manufacturing process, technical requirements,

test methods, inspection rules, marking, certificate of conformity, packaging, transportation and

storage of austenitic manganese steel castings.

2 Normative References

The contents of the following documents constitute indispensable clauses of this document

through the normative references in the text. In terms of references with a specified date, only

versions with a specified date are applicable to this document. In terms of references without a

specified date, the latest version (including all the modifications) is applicable to this document.

GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products

GB/T 223.4 Alloyed Steel - Determination of Manganese Content - Potentiometric or Visual

Titration Method

3 Terms and Definitions

The terms and definitions defined in GB/T 5611 are applicable to this document.

4 Order Information

5 Manufacturing Process

6 Technical Requirements

7 Test Methods

The Brinell hardness test shall be carried out in accordance with the stipulations of GB/T 231.1.

The welding procedure qualification before welding repair of the castings shall be carried out

in accordance with the stipulations of GB/T 40800.

The correction of the castings shall adopt the method of pressure-forming.

8 Inspection Rules

The division of inspection batches shall be based on one of the following three modes. The

specific requirements shall be determined by the demand-side and the supply-side through

negotiation and specified in the order contract.

Each smelting furnace is considered as one batch. From each batch, take one specimen for the

inspection of chemical composition. If the inspection result is disqualified, then, double

sampling and re-inspection will be required.

9 Marking, Certificate of Conformity, Packaging, Transportation and Storage

After the castings pass the inspection, they shall be protected and packaged. The protection,

packaging, transportation and storage of the castings shall comply with the stipulations of the

order contract.

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