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

Fill out the form to contact us
We promise to respond to you quickly.

Zhongrui raw materials used in productions are from the most reliable steel mills.

Austenitic Stainless Steels

This type of grades covers the biggest part of Stainless Steel grades. What defines this grades is a chromnium percentaje over 15% They are resistant to different types of corrosion caused by chemical influences. One specific type of Austenitic Stainless Steel grades are the Heatresistant stainless steel grades which maintain their mechanical properties when exposed to elevated temperatures. 

Duplex-Superduplex

Austenitic-ferritic stainless steels(duplex steels) are characterised by comparatively lower presence of nickel compared to standard austenitic grades. Their main feature are the mechanical qualities, particularly their high stress corrosion cracking resistance. They are especially suitable for off shore applications and in the chemical industry. 

Austenitic Stainless Steel

UNS

ASTM

EN no.

S30400/S30403

304/304L

1.4301/1.4307

S31603

316L

1.4404

S31635

316Ti

1.4571

S32100

321

1.4541

S34700

347

1.4550

S31008

310S

1.4845

N08904

904L

1.4539

Zhongrui has always been trying to save cost for its customers while making no compromise on product quality by improving and perfecting its production system and bringing in new technologies since it started.

Call Us

Address

  • No 99 Zhengxing Road, Shuanglin Township, Huzhou, Zhejiang, China.