Standard No.:	HG 20553-1993
English Name:	Seamless and Welded Pipe Dimension Selection Serials for Chemical Industry Piping
Chinese Name:	化工配管用无缝及焊接钢管尺寸选用系列
Professional Classification:	HG    Professional Standard - Chemistry
Issued by:	MCI
Issued on:	1994-1-22
Implemented on:	1994-7-1
Status:	superseded
Superseded by:	HG/T 20553-2011 Selection series of steel pipe size for chemical piping
Superseded on:	2011-6-1
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	80.0
Delivery:	via email in 1 business day

1 Application Scope This standard is applicable to piping design of chemical industry including the dimension series of seamless and welded steel pipes. This standard doesn't include the steel pipes used for chemical industry equipments (not piping) such as interchanger tube bundle. This standard doesn't include series of GB 3091 "Galvanized Welded Steel Pipe for Pressure Service" and GB 3092 "Welded Steel Pipe for Low Pressure Service" as well as series of general design for high pressure pipe. 2 Relevant Standards GB 8163 "Seamless Steel Tubes for Liquid Service" GB 3087 "Seamless Steel Tubes for Low and Medium Pressure Boiler" GB 5310 "Seamless Steel Tubes and Pipes for High Pressure Boiler" GB 9948 "Seamless Steel Tubes for Petroleum Cracking" GB 2270 "Stainless Steel Seamless Tubes" 3 Steel Pipe Type and Usual Steel Grade Steel pipe type, usual steel grade, standard and service temperature scope are detailed in Table 3.

1 Application Scope 2 Relevant Standards 3 Steel Pipe Type and Usual Steel Grade 4 External Diameter and Wall Thickness of Steel Pipe Explanation on Compilation