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    ASTM A179 / A179M - 90a

    ASTM A179 / A179M - 90a Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
    Description Features Specifications Chemical Composition SA-450/SA-450M

    ASTM A179 Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.

    Because of ASTM A179 grade’s temperature withstanding capabilities, it is applied to steel pipe of tubular heat exchanger, condensers and similar heat transfer equipment. Our ASTM A179 seamless tubes are used in sugar mills & distilleries, pumps and petrochemicals, cement and construction industries and steel plants. Sunny Steel can supply ASTM A179 steel tube from stock or from reputed steel mills. We also offer steel fabrication service where steel plates can go through processings like cutting, welding, bending, machining, pre-coating, pre-lined, beveling, or as you require.

    ? This specification covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus. Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.
    Note:
    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 and Chemical Composition (%)
    Chemical Composition C Mn P≤ S≤ Si≤
    0.06-0.18 0.27-0.63 0.035 0.035 0.25
    Mechanical properties
    Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
    ≥180 ≥325 ≥35
    SA-450/SA-450M
    OD In (mm) + - WT In(mm) + -
    <1(25.4) 0.10 0.10 ≤1.1/2(38.1) 20% 0
    11.1/2(25.438.1) 0.15 0.15 >1.1/2(38.1) 22% 0
    >1.1/2<2(38.150.8) 0.20 0.20
    2<2.1/2(50.863.5) 0.25 0.25
    2.1/2<3(63.576.2) 0.30 0.30
    34(76.2101.6) 0.38 0.38
    >47.1/2(101.6190.5) 0.38 0.64
    >7.1/29(190.5228.6) 0.38 1.14
    Material Comparison Tables (ASTM ℃KS, JIS, DIN, BS, NBN, NF, UNI)
    A 179 Seamless Cold Drawn Low-C Steel Heat Exchanger and Conderser Tubes
    ASTM
    UNS NO.
    KOREA/JAPANES

    GERMAN

    BRITISH
    BELGIAN
    FRENCH
    ITALIAN
    KS/JIS Symbol
    KS/JIS Numbe
    Re
    DIN Type

    DIN

    Materiral
    Number

    Re

    B.S

    B.S Grade
    Re
    NBN Type
    NBN Grade
    Re
    AF
    NF
    Re
    UNI Type
    UNI
    Re
    ASTM A179 K01200 STBH 340 / STB 35 D3563 / G3461 St 35.4 1629

    1.0309

      3606 CFS 320   D 37-2 629 (3b) TU 37 C A49-215 (3a) C 14 5462
            St 35.8 17175 1.0305 Plus
    DIN 2391 Gutegard C.NBK
               
    U-Bend Fabrication Tolerances:
    Item Condition (when) Tolercance
      Nominal bend radius ≤ 2 x nominal OD less than or equal to 12%
    Ovality 2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD less than or equal to 10%
      Nominal bend radius > 4 x nominal OD  less than or equal to 5%
      Nominal bend radius ≤ 2 x nominal OD 0.75 x nominal wall
    Mimimum wall thickness 2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD 0.8 x nominal wall
      Nominal bend radius > 4 x nominal OD 0.9 x nominal wall
      Nominal bend radius ≤ 8" (200mm) +/-3/64"(1mm)
    Bending Radius 8" (200mm) < Nominal bend radius ≤ 16" (400mm) +/-1/16"(1mm)
      Nominal bend radius >16" (400mm) +/-5/64"(1mm)
    Disrance between legs   Max 1/16"(1.5mm)
    Wall thinning of bending area   Max 17%
    Difference between leg lengths at the ends Leg length ≤ 16' (4.88m) +1/8"(3mm)
    Leg length > 16' (4.88m) +3/16"(5mm)
    Deviation from plane of bend   ≤ 3/16"(1.5mm)
    Flattening on bend   ≤ 10% nominal diameter
    Straight leg length ≤5m +1/8"(3mm)
    >5m +3/16(5mm)
    Total tube length including radius ≤6m +3/16(5mm)
    >6m +5/16"(8mm)

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    Seamless pipe Specification, standard and identification

    Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

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    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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