| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 1 Year |
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Our High-Quality Cold Drawn Low-Carbon Steel Seamless Heat Exchanger Tubes adhere to the prestigious ASTM A179 standard, making them the ideal choice for manufacturing heat exchangers, condensers, and similar sophisticated heat transfer equipment. These pipes boast a slender wall thickness, which ensures their exceptional suitability and efficiency in tubular heat exchangers, condensers, and a variety of heat transfer applications.
Crafted under the rigorous ASTM A179 standard, these steel pipes stand out for their excellent heat transfer capabilities, robust mechanical strength, and commendable resistance to corrosion. They are widely embraced across multiple industries, including petroleum, chemical, pharmaceutical, food, light industry, machinery, and instrumentation. These pipes empower equipment such as heat exchangers and condensers, serving as a backbone for reliable and efficient operation.
A heat exchanger is a sophisticated apparatus designed to facilitate the transfer of heat from a hot fluid to a cold fluid, earning its pivotal role in numerous industrial sectors. Whether in chemical, petroleum, power, or food industries, heat exchangers are indispensable, functioning as heaters, coolers, condensers, evaporators, and reboilers. They are integral to chemical production, ensuring seamless and efficient heat management across various processes.
Central to a heat exchanger's design is the heat exchange tube, meticulously positioned within the cylinder. This component is engineered for optimal thermal conductivity and excellent isothermal properties, efficiently transferring thermal energy across mediums. Its role is crucial in driving the swift and effective transfer of thermal energy from one point to another within the system.
Heat exchanger tubes are essential in facilitating heat transfer between two or more fluids at varying temperatures. They expertly manage processes such as heating, cooling, condensation, and evaporation. The performance of these tubes significantly determines the efficiency, reliability, and longevity of the entire heat exchanger, underscoring their critical role in thermal management.
Application of Heat Exchanger Tubes Across Diverse Industries
1. Chemical industry: A cornerstone in chemical production, heat exchanger tubes are employed in crucial operations like heating reaction materials, cooling products, and reclaiming waste heat, substantially boosting energy efficiency and resource conservation.
2. Petroleum industry: In the realm of petroleum refining, these tubes are instrumental for heating crude oil, product separation, and other key processes, ensuring a smooth and uninterrupted production journey.
3. Power industry: In power plants, especially within boilers, heat exchanger tubes play a vital role in heating or cooling fluids, aligning perfectly with the rigorous demands of power generation processes.
4. Food industry: Within the food sector, heat exchanger tubes are pivotal in heating and cooling food ingredients and products, enabling precise temperature control and enhancing overall production quality.
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Permissible Variations in Outside Diameter
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Outside Diameter
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Permissible Variations, in. [mm]
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| in. [mm] | over | under |
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Hot-Finished Seamless Tubes
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| 4[101.6] and under | 1/64[0.4] | 1/32[0.8] |
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Welded Tubes and Cold-Finished Seamless Tubes
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| under 1 [25.4] | 0.004[0.1] | 0.004[0.1] |
| 1 to 11/2 [25.4 to 38.1],incl | 0.006[0.15] | 0.006[0.15] |
| over 11/2 to 2[38.1 to 50.8],excl |
0.008 [0.2]
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0.008 [0.2] |
| 2 to 21/2 [50.8 to 63.5],excl |
0.010 [0.25]
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0.010 [0.25] |
| 21/2 to 3[63.5 to 76.2],excl |
0.012 [0.3]
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0.012 [0.3] |
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Permissible Variations in Wall Thickness
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Outside
Diameter,
in. [mm]
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Wall Thickness, %
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0.095 [2.4] and Under |
Over 0.095 to 0.150 [2.4 to 3.8], incl |
Over 0.150 to 0.180
[3.8 to 4.6], incl
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Over
0.180[4.6]
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|||||
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Over
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Under
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Over
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Under
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Over
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Under
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Over
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Under
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Seamless, Hot-Finished Tubes
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4 [101.6] and under
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40 | 0 | 35 | 0 | 33 | 0 | 28 | 0 |
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Seamless, Cold-Finished Tubes
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| over | under | |||||||
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11/2[38.1] and under
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20 | 0 | ||||||
| over 11/2[38.1] | 22 | 0 | ||||||
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Welded Tubes
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All sizes
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18 | 0 | ||||||
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Permissible Variations in Weight Per Foot
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Method of Manufacture
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Permissible Variation in Weight
per Foot, %
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Over
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Under
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Seamless, hot-finished
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16 | 0 |
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Seamless, cold-finished:
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11/2 in. [38.1 mm] and under OD
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12 | 0 |
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Over 11/2 in. [38.1 mm] OD
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13 | 0 |
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Welded
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10 | 0 |
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Chemical Composition
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Carbon, %
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0.06-0.18
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Manganese, %
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0.27-0.63
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Phosphorus, max, %
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0.035
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Sulfur, max, %
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0.035
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tensile properties
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Tensile strength, min, ksi [MPa]
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47 [325]
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Yield strength, min, ksi [MPa]
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26 [180]
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Elongation in 2 in. or 50 mm, min, %
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35 |
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Hardness Requirements
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| Hardness,max,HRB | 72 |
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Mechanical Tests Required
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Flattening Test
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Extract 2 pcs from each batch and collect one specimen each for testing |
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Flaring Test
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Extract 2 pcs from each batch and collect one specimen each for testing |
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Flange Test
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Extract 2 pcs from each batch and collect one specimen each for testing |
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Hydrostatic Test
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Test one by one |
| Outer diameter of heat exchange tube(mm) | ||||||||||||
| 10 | 12 | 14 | 16 | 10 | 20 | 25 | 32 | 35 | 38 | 45 | 50 | 57 |
Q: Are you trading company or manufacturer?
A: We are professional manufacturer for steel pipes,and our company also is a very professional and technical foreign trade company for steel products. We have more export experience with competitive price and best after-sales service. Apart from this,we can provide a wide range of steel products to meet the requirement of customer.
Q:Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time no matter if the price change lot or not. Honesty is our company's tenet.
Q: Do you provide samples ? is it free or extra?
A: The sample could can provide for customer with free,but the freight will be covered by customer account. The sample freight will be returned to customer account after we cooperate.
Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,Wechat and WhatsApp will be online in 24 hours. Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out a best price soon.
Q: Do you have any certifications?
A: Yes,that's what we guarantee to our clients. we have IS09000,IATF16949 certinicate,ISO 14001 certificates etc.Our products are of high quality and we have professional engineers and development team.
Q: What is your terms of payment?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipmenit or paid against copy of B/L within 5 working days. 100% Irrevocable L/C at sight is favorable payment term as well.
Q: Do you accept the third party inspection?
A: Yes absolutely we accept.
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