Standard No.:	GB/T 21833-2008
Chinese Name:	奥氏体 铁素体型双相不锈钢无缝钢管
English Name:	Austenitic - Ferritic (duplex) grade stainless steel seamless tubes and pipes
Professional Classification:	H48 Steel tube and cast iron pipe
Professional Classification:	GB National Standard
ICS Classification:	77.140.75 Steel pipes and tubes for specific use
Issued by:
Issued on:	2008-05-13
Implemented on:	2008-11-01
Status:	VALID
Replace By:	GB/T21833.1-2020 Seamless austenitic-ferritic(duplex) stainless steel tubes and pipes—Part 1:Tubes for heat exchanger
Replace By Date:	2020-11-01
Language:	English
File Format:	PDF
Word Count:	8000 words
Price(USD):	240 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard specifies the dimension, shape, weight, technical requirements, test methods, inspection rules, package, marking and quality certificate of austenitic-ferritic (duplex) grade stainless steel seamless tubes and pipes.
This standard is applicable to corrosion-resistant austenitic-ferritic (duplex) grade duplex stainless steel seamless tubes and pipes.

2 Normative References

The following documents contain requirements which, through reference in this text, constitute requirements of this standard. For dated reference, subsequent amendments (excluding amending errors in the text) to, or revisions of, any of these publications do not be applied. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these references are applied or not.