A333 Gr.6 Large Diameter Thick Wall Low Temperature Alloy Seamless Steel Pipe

TORICH is a professional low temperature steel tubes manufacturer of precision steel tubes

for Low temperature service and other application with required Notch Toughness ,

which is equipped with 20 lines of pipe production. Low temperature tubes is usually

produced by Gr1,Gr2,Gr3,Gr4,Gr6,Gr7 ,Gr8,Gr9,Gr10,Gr11 ,09DG,09MnVDG,16MnDG,

10MnDG etc ,production method can be cold drawning or cold rolled. Low temperature tubes is

usually based on technical standard

GB/T 18984,A333 etc .

TORICH low temperature steel tubes is usually produced based on the following technical standard

and Grade:

Standards:A333,GB/T 18984 or similar technical standard.

Steel Grade:Gr1,Gr2,Gr3,Gr4,Gr6,Gr7 ,Gr8,Gr9,Gr10,Gr11 etc

TORICH A333 Gr.6 tubes can produce the Carbon steel and alloyed steel Sizes Range:

OD: 8-1240×1-200mm

WT:1/8"-48"×SCH5S-SCH160,STD,XS,XXS

Wall Thickness: can be by mutual agreement with customer.

Main Features for Alloy hot-rolled seamless pipes :

1.High accuracy on tolerance

2.Good Mechanical properties

3.Bear Low Temperature

4. Ductility-brittleness transition temperature is lower than service temperature

5. Strength to meet design requirements

6. Structure stability at service temperature

7.Good weldability and formability; Some special applications also require very low permeability, cold shrinkage and so on.

Production Process for A333 Gr.6 steel tubes:

Inspection of RM

Surface Inspt

Size&Tolearance Inspt

Chem.composition inspt

Inspt during production

Surface inspt

Size&Tolearance Inspt

Inspt for mfg technique

Inspt for insh tubes

Surfaceinspt

Size&Tolearance Inspt

Lgth straightness check

Physical a chem.test

NDT test and Hydro test

Test for smooth finish

Impact temperature:

A333 Gr.6 steel tubes are usually used in the following scope:

• -45℃ ~ -195℃ grade low-temperature pressure vessel pipeline and low-temperature heat exchanger pipeline

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