ASTM A333Gr.6 бесшовная труба из легированной стали

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ASTM A333Gr.6 Low Alloy Seamless Steel Pipe


 


Specification ASTM A333 covers carbon steel pipes meant for application in low temperatures. LTCS or Low Temperature Carbon Steel is a type of alloy that is enveloped under this particular specification. The ASTM specified A333 Carbon Steel Low temperature tube has moderate tensile properties with good hardness, but low corrosion resistance properties. The alloy’s resistance to corrosion can be improved by the use of certain surface treatments. Most commonly, buyers prefer coating the surface of ASTM A333 Low Temperature Steel Pipe with treatments such as Galvanizing, Varnishing, CRA or stainless cladding, 3PE/3LPE, FBE, and lining.


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While the tensile properties of this alloy are moderate, according to this specification the LTCS ASTM A333 Gr 6 Pipe is put through the following tests - hydrostatic tests, and nondestructive electric tests in addition to tensile tests & impact tests. Apart from producing A333 Grade 6 Seamless Pipe, the welded pipe must not be welded by the use of any filler metal. In order to control their microstructure, the ASTM A333 Grade 6 Pipeis to be treated. The fine grain structure is what makes the dispersion of carbides uniform in the A333 Gr 6 welded pipe. Industries that use low temperature transmissions include Oil & Gas, Construction, Mechanical engineering, Alternative Energy, Subsea Drilling as well as the Petrochemical industry. However, the most exclusive user of Low Temperature Carbon Steel SA333 Grade 6 Pipe is the oil and gas industry. These pipes perform well even down to a temperature of — 50°F, where the A333 Low Temp Pipe is exposed to the presence of refrigerants.


ASTM A333 Grade 6 Pipe Standard Specifications


























































ASTM A333 GR. 6 Carbon Steel Pipes StandardsASTM, ASME and API
Carbon Steel ASTM A333 Pipe Related GradesA333 Grade 1, A333 Grade 3, A333 Grade 4, A333 Grade 6, A333 Grade 7, A333 Grade 8, A333 Grade 9, A333 Grade 10, A333 Grade 11 Seamless Pipes
ASTM A333 GR. 6 Carbon Steel Round Pipes Size1/2” NB to 36” NB
Carbon Steel A333 GR.6 Seamless Pipes Thickness3-12mm
ASTM A333 Grade 6 Pipes SchedulesSCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
ASTM A333 Carbon Steel GR.6 Seamless Pipes ToleranceCold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm

ASTM A333 Gr 6 Carbon Steel Pipe CraftCold rolled and Cold drawn
Carbon Steel A333 Gr.6 Rectangular Pipe TypeSeamless / ERW / Welded / Fabricated / CDW
ASTM A333 Gr.6 Carbon Steel Welded Pipes FormRound, Hydraulic Etc
Carbon Steel A333 Gr.6 Square Pipe LengthMin 3 Meters, Max18 Meters, or according to customer’s requirement
ASTM A333 Grade 6 CS Pipes EndPlain End, Beveled End, Treaded
ASTM A333 GR. 6 Carbon Steel Welded Pipes Specialized inLarge Diameter ASTM A333 Grade 6 Pipe
ASTM A333 LSAW Pipes Additional TestingNACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.


A333 Gr 6 welded pipe Equivalent Grades

























 FormerNew
ExecutionStandardMaterialStandardMaterial
SeamlessASTM A333GRADE 6EN 10216-4P265NL


















































ASTM A333 GradeASTM A333 PipeASTM A333 TubeFittingsFlangesBarForgingsENMaterial
Low Temp C.S. Gr. 1A333 GR. 1A333 GR. 1A420 WPL1/6A350 LF2A516A350 LF2  
Low Temp C.S. Gr. 3A333 GR. 3A333 GR. 3A420 WPL3A350 L3A516A350 LF3  
Low Temp C.S. Gr. 6A333 GR. 6A333 GR. 6A420 WPL6A350 LF2A516A350 LF2EN 10216-4P265NL






















DINENBSNFAASTMASME
DIN 17178      Grade FGP 28EN P265NL        Grade 10216-4NFA A 36-2051)  Grade A 42 APASTM A333 Grade6ASME SA 333 Grade 6UNI C20


Chemical Element of LTCS ASTM A333 Gr 6 Pipe










































 C(max)MnP(max)S(max)SiNi
Grade 10.030.40 – 1.060.0250.025  
Grade 30.190.31 – 0.640.0250.0250.18 – 0.373.18 – 3.82
Grade 60.30.29 – 1.060.0250.0250.10 (min) 


Mechanical Characteristics of SA333 Grade 6 Pipe










































ASTM A333 Grade 1 
Minimum Yield30,000 PSI
Minimum Tensile55,000 PSI
ASTM A333 Grade 3 
Minimum Yield35,000 PSI
Minimum Tensile65,000 PSI
ASTM A333 Grade 6 
Minimum Yield35,000 PSI
Minimum Tensile60,000 PSI


A333 Low Temp PipeTemperature Condition material Tolerance






























Outside Diameter, inchTolerance, %
1/8≤OD≤2-1/2+20.0/-12.5
3≤OD≤18, WT/OD≤5%+22.5/-12.5
3≤OD≤18, WT/OD>5%+15.0/-12.5
OD≥20, WT/OD≤5%+22.5/-12.5
OD≥20, WT/OD>5%+15.0/-12.5


A333 Low Temp PipeTemperature Condition 






















































CradeThe lowest temperature for strike test
SA 333 GR 1-50-45
SA 333 GR 3-150-100
SA 333 GR 4-150-100
SA 333 GR 6-50-45
SA 333 GR 7-100-75
SA 333 GR 8-320-195
SA 333 GR 9-100-75
SA 333 GR 10-75-60


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