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    ASTM A519 carbon and alloy steel mechanical tubing

    ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

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    Download ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
    Pipe and Tube Specifications of ASTM A519

    This ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

    Application:

    The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.

    The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Size range(mm):

    Features Specifications
    OD(mm) Wall Thickness Unit(mm)
      2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
    Φ25-Φ28                
    Φ32                
    Φ34-Φ36                
    Φ38                
    Φ40                  
    Φ42                  
    Φ45                
    Φ48-Φ60              
    Φ63.5              
    Φ68-Φ73                
    Φ76        
    Φ80        
    Φ83        
    Φ89        
    Φ95        
    Φ102        
    Φ108        
    Φ114          
    Φ121          
    Φ127          
    Φ133          
    Φ140            
    Φ146            
    Φ152            
    Φ159            
    Φ168            

    Grade:

    Note:

    Steel grade and Chemical composition (%) of ASTM A519:

    Grade C Mn P≤ S≤ Si Cr Mo
    1008 ≤0.10 0.30-0.50 0.040 0.050 - - -
    1010 0.08-0.13 0.30-0.60 0.040 0.050 - - -
    1018 0.15-0.20 0.60-0.90 0.040 0.050 - - -
    1020 0.18-0.23 0.30-0.60 0.040 0.050 - - -
    1025 0.22-0.28 0.30-0.60 0.040 0.050 - - -
    1026 0.22-0.28 0.60-0.90 0.040 0.050 - - -
    4130 0.28-0.33 0.40-0.60 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
    4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25

    Mechanical Properties of ASTM A519:

    Grade Condition MPa Tenslle Point Yield Point Elongation
    1020 CW

    ≥414

    ≥483
    ≥5%
    SR ≥345 ≥448 ≥10%
    A ≥193 ≥331 ≥30%
    N ≥234 ≥379 ≥22%
    1025 CW ≥448 ≥517 ≥5%
    SR ≥379 ≥483 ≥8%
    A ≥207 ≥365 ≥25%
    N ≥248 ≥379 ≥22%
    4130 SR ≥586 ≥724 ≥10%
    A ≥379 ≥517 ≥30%
    N ≥414 ≥621 ≥20%
    4140 SR ≥689 ≥855 ≥10%
    A ≥414 ≥552 ≥25%
    N ≥621 ≥855 ≥20%

    Please note the meaning of below abbreviation in table 2:

    Dimension Tolerances
    Pipe Type  Pipe Sizes   Tolerances 
    Cold drawn OD ≤48.3mm ±0.40mm
    WT ≥60.3mm ±1%mm

    ASTM A519-89/ASME SA519 Material comparison tables

    Seamless mechanical tubing is manufactured from carbon and alloy steels for structural or other mechanical purposes involving machining or heat treating, where close tolerances, smooth finish, or definite physical properties are important factors.

    Scope

    1.1 this specification covers several frades of carbon and alloy steel seamless mechanical tubing. The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.

    1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.

    1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.

    1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.

    JIS Number and Corrensponding Foreign Standards

    JIS
    ASTM
    BS
    DIN
    NF
    ISO

    Index Number

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    G3445
    STKM11A
    C
    A512
    MT1010
    C
    1717
    ERWC1
    C
    2391
    St30Si
    C
    3304
    R28
    C
    C017
    A513
    MT1010
    C
    St30A1
    C
    3305
    "
    C
    2393
    St28
    C
    3306
    "
    C
    RSt28
    C
    2394
    St28
    C
    USt28
    C
    RSt28
    C
    STKM12A
    C
    A512
    MT1015
    C
    1717
    ERWC2
    C
    2391
    St37-2
    3304
    R33
    C
    A513
    MT1015
    C
    6323
    HFS3
    C
    RSt37-2
    3305
    "
    "
    STKM12B
    C
    A512
    MT1015
    C
    2394
    St37-2
    3306
    "
    "
    A513
    MT1015
    C
    Ust38-2
    A519
    MT1015
    C
    RSt-2
    STKM12C
    C
    1717
    CEWC2
    C
    A49-322
    TU37b
    C
    "
    CFSC3
    C
    A49-327
    TU37b
    C
    6323
    CFS3
    C
    "
    CFS3A
    C
    STKM13A
    C
    A312
    MT1020
    C
    1717
    ERWC3
    C
    2391
    St45
    C
    A49-324
    TU37b
    C
    2937
    TS4
    C
    A513
    MT1020
    C
    2393
    St44-2
    C
    A49-330
    TU37b
    C
    3304
    R37
    "
    2394
    St44-2
    C
    A49-343
    TU38b
    C
    3305
    "
    "
    STKM13B
    C
    A513
    MT1020
    C
    3306
    "
    "
    STKM13C
    C
    1717
    CEWC3
    C
    "
    CFSC4
    C
    6323
    CFS4
    C
    STKM14A
    C
    A513
    MT1020
    C
    6323
    HFS4
    C
    2937
    TS9
    C
    3304
    R42
    "
    STKM14B
    C
    6323
    HFS5
    C
    3305
    R42
    C
    STMK14C
    C
    3306
    "
    "
    STKM15A
    C
    A513
    1030
    C
    A519
    1030
    C
    STKM15C
    STKM16A
    C
    A519
    1040
    C
    A49-311
    TUXC35
    C
    A49-312
    TUXC35
    C
    STKM16C
    C
    STKM17A
    C
    A519
    1050
    C
    6323
    HFS8
    C
    STKM17C
    C
    6323
    CFS8
    C
    STKM18A
    C
    A519
    1518
    C
    1717
    ERWC5
    C
    A49-310
    TU52b
    C
    A49-311
    TU52b
    C
    A49-312
    TU52b
    C
    STKM18B
    C
    A49-321
    TU52b
    C
    A49-323
    TU52b
    C
    A49-326
    TU52b
    C
    STKM18C
    C
    A49-330
    TU52b
    C
    A49-341
    TS42a
    C
    "
    TS47a
    C
    A49-343
    TS18M5
    C
    STKM19A
    C
    A519
    1524
    C
    2391
    ST52
    C
    2937
    TS18
    C
    2393
    ST52-3
    C
    2938
    Gr.1
    C
    2394
    ST52-3
    C
    3304
    R50
    C
    3305
    R50
    C
    3306
    R50
    C
    STKM20A
    C

    JIS Number and Corrensponding Foreign Standards

    JIS
    ASTM
    BS
    DIN
    NF
    ISO

    Index Number

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    Standard Number

    Grade

    Tupe

    G3441
    SCr420TK
    Cr
    C018
    SCM415TK
    CrMo
    SCM418TK
    CrMo
    6323
    CFS10
    CrMo
    SCM420TK
    CrMo
    A519
    5120
    CrMo
    SCM430TK
    CrMo
    A519
    4130
    CrMo
    SCM435TK
    CrMo
    A519
    4135
    CrMo
    SCM440TK
    CrMo
    A519
    4140
    CrMo
    6323
    CFS10
    CrMo

    The values stated in inch-pround units are to be regarded as the standard.

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    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
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