| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 1 Year |
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Our Custom Cold Drawn Seamless Steel Tubes are meticulously engineered according to the ASTM A179 standard, ensuring top-quality performance for your heat transfer applications. These pipes are specifically designed for seamless cold drawing, utilizing low-carbon steel to create tubing that excels in heat exchanger, condenser, and similar equipment. With their optimal wall thickness, these pipes are perfect for facilitating efficient thermal exchange in demanding industrial environments.
The ASTM A179 standard steel pipes are celebrated for their exceptional heat transfer capabilities, robust mechanical integrity, and superior corrosion resistance. These pipes are integral to the functionality of heat exchangers and condensers across numerous sectors, including petroleum, chemical, pharmaceutical, food processing, light industry, machinery, and instrumentation, where they ensure consistent and reliable performance.
A heat exchanger is an indispensable device that efficiently transfers heat from one fluid to another, playing a pivotal role in diverse industrial processes. Widely adopted across sectors such as chemical, petroleum, power generation, and food processing, heat exchangers perform essential functions as heaters, coolers, condensers, evaporators, and reboilers. Their versatility and efficiency make them a cornerstone of modern production systems.
Heat exchange tubes, vital components within heat exchangers, are strategically positioned inside the cylindrical body to facilitate heat transfer between two media. Renowned for their high thermal conductivity and exceptional isothermal properties, these devices are adept at rapidly transferring thermal energy, making them a critical element in achieving efficient heat exchange.
The primary role of heat exchanger tubes is to facilitate effective heat transfer between multiple fluids of varying temperatures. This capability is essential for processes such as heating, cooling, condensation, and evaporation, where the performance of these tubes is crucial to the efficiency, reliability, and longevity of the entire heat exchanger system.
Application of Heat Exchanger Tubes Across Various Industries
1. Chemical Industry: Within the chemical sector, heat exchanger tubes are instrumental in crucial processes like heating reaction materials, cooling products, and reclaiming waste heat. By significantly enhancing energy utilization efficiency, these tubes contribute to more sustainable and cost-effective chemical production.
2. Petroleum Industry: During petroleum refining, heat exchanger tubes are vital for processes like heating crude oil and refining product separation, ensuring the seamless execution of production operations and maintaining high standards of safety and efficiency.
3. Power Industry: In power generation facilities, heat exchanger tubes are employed in boilers to effectively manage fluid temperatures, thus meeting the stringent requirements of power production and contributing to the overall efficiency of energy conversion processes.
4. Food Industry: Within the realm of food processing, heat exchanger tubes are utilized to meticulously heat and cool food ingredients and products, ensuring precise temperature control throughout the production cycle and guaranteeing product quality and safety.
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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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