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{"title":"Heat Exchanger tube, U bend Type , Stainless Steel Heat Exchanger Tube ASTM 213,","imgUrl":"https:\/\/img.chinax.com\/nimg\/c7\/41\/a8d3b163cbf61743fa5e1ccdd796-200x200-1\/heat_exchanger_tube_2c_u_bend_type_2c_stainless_steel_heat_exchanger_tube_astm_213_2c_asme_sa213_2c_astm_a789_2c_asme_sa789.jpg","attrs":{"Place of Origin":"China, Korea","Brand Name":"YUHONG","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008","Minimum Order Quantity":"100KGS"}}
{"title":"ASTM A861 GR.2 Titanium Alloy Seamless Pipe For Boiler Condenser Electric","imgUrl":"https:\/\/img.chinax.com\/nimg\/17\/1d\/72557b066113e01905b80450c734-200x200-1\/astm_a861_gr_2_titanium_alloy_seamless_pipe_for_boiler_condenser_electric_appliance.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"ASTM A861 Gr.2","Certification":"ISO,SGS,BV,ISO & SGS,ISO\/CE\/SGS","Place of Origin":"CHINA"}}
{"title":"ASME SB338 GR.7 \/ UNS R52400 Titanium Alloy Seamless Heat Exchanger Tube","imgUrl":"https:\/\/img.chinax.com\/nimg\/57\/cb\/013fcba50a7d7b427fbe8ef70a11-200x200-1\/asme_sb338_gr_7_2f_uns_r52400_titanium_alloy_seamless_heat_exchanger_tube.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"ASME SB338 Gr.7 Seamless Tube","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015","Place of Origin":"China"}}
ASTM A179/ ASME SA179 is a low-carbon steel grade, typically with a maximum carbon content of 0.18%.Tubes are manufactured by cold drawn process, which results in improved strength and hardness due to work hardening. The surface finish is smoother compared to hot-rolled products, reducing the need for further processing or coating. The tight tolerances and smooth finish contribute to better resistance against corrosion, making them suitable for harsh environments. Available in various sizes and shapes like straight and U bend, they can be customized to meet specific application requirements.
ASTM A179 seamless heat exchanger tube is generally made through cold-drawn process. The cold-drawn manufacturing process not only improves dimensional accuracy but also enhances the mechanical properties of the tubes, making them stronger and more durable compared to hot-rolled tubes. This results in better performance under high-pressure conditions.
ASTM A179 Carbon Steel Comparison with Other Materials:
Versus Stainless Steels (like A312 or A213):
Cost-Effectiveness: A179 is generally more affordable than stainless steel grades, making it an attractive option for budget-sensitive projects without compromising too much on performance.
Strength: While stainless steels typically have better corrosion resistance and higher temperatures tolerance, A179 provides adequate strength for many heat exchanger applications.
Versus Other Carbon Steels:
Manufacturability: A179 is designed specifically for seamless manufacturing, allowing it to be produced with precise dimensions, which is crucial for efficient heat transfer.
Versatility: It can be used in various environments, and its thermal conductivity is adequate for heat exchanger applications.
ASTM A179 / ASME SA 179 Carbon Steel Seamless Tube Chemical Composition
Element
Carbon
Manganese
Phosphorus
Sulfur
Grade
0.06-0.18
0.27-0.63
0.035
0.04
ASTM A179 / ASME SA 179 Carbon Steel Seamless Tube Material Mechanical Properties
Yield Strength(MPa)
Tensil Strength(MPa)
Elogation(%)
≥180
≥325
≥35
Properties:
Strength: Cold drawn A179 tubes generally exhibit higher mechanical strength compared to their hot-rolled counterparts.
Dimensional Accuracy: The cold drawn process allows for tighter tolerances, producing a more precise product.
Surface Finish: They have a better surface finish, leading to improved aesthetic quality and corrosion resistance.
ASTM A179 Carbon Steel tubes can be used in heat exchangers in two main forms: straight tubes and U-bend tubes.
Straight Tubes: Straight A179 tubes are the most common form used in heat exchangers. They are available in various lengths and can be easily installed in a straight configuration. Straight tubes are typically used in applications where the heat transfer requirements can be met with a simple layout. They are suitable for applications where the fluid flow is relatively straightforward and does not require complex tube routing.
U-Bend Tubes: U-bend A179 tubes are specifically designed for heat exchangers that require a compact and efficient design. These tubes are bent into a U-shape with precise dimensions and tight tolerances. The U-bend configuration allows for a more compact layout, reducing the space required for the heat exchanger. U-bend tubes are typically used in applications where space is limited or where the heat exchanger design demands a specific tube arrangement.
Manufacturing Process:
Cold Drawn: The process involves drawing the tube through a die to reduce its diameter and increase its length. This method enhances its mechanical properties, producing a tighter tolerance, a finer surface finish, and improved strength.
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...