Standard No.:	TB/T 2451-1993
Chinese Name:	铸钢中非金属夹杂物金相检验
English Name:
Professional Classification:	H24 Metallographic testing method
Professional Classification:	TB Professional Standard - Railway Transport
Issued by:
Issued on:	1993-11-11
Implemented on:	1994-07-01
Status:	ABOLISHED
Replace By:	TB/T2942.1-2020
Replace By Date:
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	180 (USD)
Delivery:	via email in 1-3 business day

1 Subject Content and Scope of Application

This standard specifies the technical requirements, test items, grading diagrams, test methods and test rules of metallographic test for nonmetallic inclusions in cast steel.

This standard is generally applicable to the metallographic test for nonmetallic inclusions in cast carbon steel and cast low-alloy steel for general engineering purposes.

2 Normative References

GB 10561 Steel — Determination of Content of Non-metallic Inclusion — Micrographic Method Using Standard Diagrams

3 Technical Requirements

If the requirements of nonmetallic inclusions are specified in product drawing or technical conditions, they shall comply with the requirements of Table 1.