Specifications
Specifications
Zhongrui manufactures stainless steel tubes&pipes to different specifications for customers with different demands and from different regions.

ASTM-Specification
Stainless Steel pipes, tubes and fittings
A 213 / A 213M   :   Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes 
A 269 / A 269M   :   Seamless and welded austenitic stainless steel tubing for general service 
A 312 / A 312M   :   Seamless and welded austenitic stainless steel pipes 
A 376 / A 376M   :   Seamless austenitic steel pipe for high-temperature central-station service 
A 511                   :   Seamless stainless steel mechanical tubing 
A 789 / A 789M   :   Seamless and welded ferritic-austenitic stainless steel tubing for general service 
A 790 / A 790M   :   Seamless and welded ferritic-austenitic stainless steel pipe

ASME-Specification
ASME pressure Code  Stainless Steel 
SA 213 / SA 213M   :   Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes 
SA 269 / SA 269M   :   Seamless and welded austenitic stainless steel tubing for general service 
SA 312 / SA 312M   :   Seamless and welded austenitic stainless steel pipes 
SA 376 / SA 376M   :   Seamless austenitic steel pipe for high-temperature central-station service 
SA 511                     :   Seamless stainless steel mechanical tubing 
SA 789 / SA 789M   :   Seamless and welded ferritic-austenitic stainless steel tubing for general service 
SA 790 / SA 790M   :   Seamless and welded ferritic-austenitic stainless steel pipe

European-Specifications
Stainless steels 
EN 10216-5     :   Seamless steel tubes for pressure purposes 
EN ISO 1127   :   Seamless stainless steel tubes (Dimensions and weights)

GOST-Specification
Stainless steels 
GOST 9941   :   Seamless stainless steel tubes, cold and hot finished
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