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    Low Temperature Pipe

    ASTM A333 (ASME S/A-333) Pipe grades permit low temperature service. This specification covers nominal (average) walled pipe almost exclusively in seamless.

    Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse effect on low-temperature impact properties.

    A333 pipe is furnished to nine different grades designated by numbers 1, 3, 4, 6, 7, 8, 9, 10, & 11.

    Sunny Steel Supply supplies a full range of ASTM A333 (ASME S/A 333)

    Low Temperature Steel Pipe Specifications & Grades

    Size range


    For low temperature

    Production specification range of low temperature pipe products

    Pipes are used in low temperature service

    Steel pipes are produced accord to ASTM A333 standard

    Strike temperature condition:

    Crade The lowest temperature for strike test
    ASTM A333 Grade 1 -50 -45
    ASTM A333 Grade 6 -50 -45

    ?Mechanical requiremnts of?ASTM A333 alloy pipe

    Grade Tensile Strength (MPa) Yield Point (MPa) Elongation (%)
    Y X
    Grade 1 ≥380 ≥205 ≥35 ≥25
    Grade 3 ≥450 ≥240 ≥30 ≥20
    Grade 4 ≥415 ≥240 ≥30 ≥16.5
    Grade 6 ≥415 ≥240 ≥30 ≥16.5
    Grade 7 ≥450 ≥240 ≥30 ≥22
    Grade 8 ≥690 ≥515 ≥22
    Grade 9 ≥435 ≥315 ≥28
    Grade 10 ≥550 ≥450 ≥22
    Grade 11 ≥450 ≥240 ≥18

    ?Chemical Composition (%) of ASTM A333 steel pipe

    Grade Chemical Composition (%)
    C Si Mn P S Cr Ni Cu Mo V Al
    Grade 1 ≤0.30 0.40-1.06 ≤0.025 ≤0.025
    Grade 3 ≤0.19 0.18-0.37 0.31-0.64 ≤0.025 ≤0.025 3.18-3.82
    Grade 4 ≤0.12 0.18-0.37 0.50-1.05 ≤0.025 ≤0.025 0.44-1.01 0.47-0.98 0.40-0.75 0.04-0.30
    Grade 6 ≤0.30 ≥0.10 0.29-1.06 ≤0.025 ≤0.025
    Grade 7 ≤0.19 0.13-0.32 ≤0.90 ≤0.025 ≤0.025 2.03-2.57
    Grade 8 ≤0.13 0.13-0.32 ≤0.90 ≤0.025 ≤0.025 8.40-9.60
    Grade 9 ≤0.20 0.40-1.06 ≤0.025 ≤0.025 1.60-2.24 0.75-1.25
    Grade 10 ≤0.20 0.10-0.35 1.15-1.50 ≤0.03 ≤0.015 ≤0.15 ≤0.25 ≤0.015 ≤0.50 ≤0.12 ≤0.06
    Grade 11 ≤0.10 ≤0.35 ≤0.6 ≤0.025 ≤0.025 ≤0.50 35.0-37.0 ≤0.50

    Heat Treatment:

    Grades 1 and 6 shall be heat treated to control their microstructure.

    ASTM A333 Grade 6 and ASME SA 333 Grade 6 are heat treated to achieve normalized condition @ 920 degrees Celsius with controlled microstructure.

    Production specification range of low temperature pipe products

    No.
    Order No.
    Size description
    O.D.
    /mm
    W.T.
    /mm
    Legnth
    /m
    1
    A333 Gr.6
    A333 Gr.6/X42NS
    10-127
    1-20
    6-12.0
    42-114.3
    3.5-6
    6-12.2
    42-114.3
    6-12
    6-12.2
    114.3-180
    3.8-8
    6-12.2
    114.3-180
    8-22
    6-12.2
    68-180
    10-14
    6-12.2
    69-254
    14-55
    6-12.2
    140-340
    6-8
    6-12.2
    140-368
    8-42
    6-12.2
    318-720
    14-50
    4-12.5
    2
    A333 Gr.6/X52QS
    42-114.3
    3.5-12
    6-12.2
    114.3-180
    3.8-22
    6-12.2
    68-254
    10-40
    6-12.2
    140-368
    6-40
    6-12.2
    318-720
    14-40
    4-12.5
    140-368
    6-25
    6-12.2
    318-720
    14-25
    4-12.5
    3
    16MnDG
    10-127
    1-20
    6-12.0
    42-114.3
    3.5-12
    6-12.2
    114.3-180
    3.8-22
    6-12.2
    68-254
    10-55
    6-12.2
    140-368
    6-42
    6-12.2
    318-720
    14-120
    4-12.5

    Specific Impact requirements

    The raw material used for low temperature service pipe is ALUMINIUM killed with high proportion of manganese (more than 1%) combined with low proportions of carbon (less than 0.23%).For low temperature pipe to be certified as LTCS additional impact test should be conducted at low temperatures, as per mandatory requirements in section 8 of ASTM A 333.

    ?

    Alloy steel specification, Standard and identification

    Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.

    ASTM A335 P11 alloy pipe
    ?

    SUNNY STEEL

    Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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