Standard No.:	GB/T 15711-2018
Chinese Name:	钢中非金属夹杂物的检验 塔形发纹酸浸法
English Name:	Inspection of non-metallic inclusions of steel—Etching test method of tower samples
Professional Classification:	H24 Metallographic testing method
ICS Classification:	77.040.99 Other methods of testing of metals
Issued by:
Issued on:	2018-05-14
Implemented on:	2019-02-01
Status:	VALID
Replace:	GB/T15711-1995 Steel products－Method for ecth test of tower sample
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	120 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard specifies the selection and preparation of test sample, hairlines inspection methods, expression and evaluation of test results and test report of etching test method of tower samples for inspection of non-metallic inclusions of steel.

This standard is applicable to the inspection of the number, length and distribution of hairlines in steel by etching test method for tower samples of steels with diameter, side length or thickness of 16 mm to 150 mm. Other products or specifications may be used as reference.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching
GB/T 8170 Rules of Rounding Off for Numerical Values & Expression and Judgment of Limiting Values

3 Terms and Definitions

For the purposes of this document, the following terms and definitions apply.