| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 1 Year |
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The ASTM A179 standard shines as the hallmark for seamless, cold drawn low-carbon steel pipes, perfectly crafted for the manufacture of heat exchangers, condensers, and similar heat transfer marvels. These ingeniously engineered steel pipes boast a delicately thin wall thickness, making them the epitome of sophistication for tubular heat exchangers and condensers, ensuring unparalleled efficiency in heat transfer equipment.
ASTM A179 standard steel pipes are celebrated for their exemplary heat transfer performance, commendable mechanical strength, and steadfast corrosion resistance. They are the trusted choice for industries such as petroleum, chemical, pharmaceutical, food, light industry, machinery, and instruments, where they find their esteemed place in equipment like heat exchangers and condensers, ensuring seamless operations across diverse sectors.
A heat exchanger is an ingenious apparatus that masterfully transfers heat from a hot fluid to a cold one, serving as a pivotal player across numerous industrial landscapes like chemical, petroleum, power, and food. These versatile devices are indispensable in chemical production, assuming roles as heaters, coolers, condensers, evaporators, and reboilers, showcasing their adaptability and enhancing operational efficiency.
The heat exchange tube stands as a vital component within a heat exchanger, elegantly situated inside the cylinder to facilitate the seamless transfer of heat between two media. With its high thermal conductivity and exceptional isothermal properties, this device is a marvel at swiftly relocating thermal energy from one point to another, ensuring optimal performance and energy efficiency.
The paramount function of heat exchanger tubes is to orchestrate the precise transfer of heat between two or more fluids at varying temperatures. This adept process enables critical operations such as heating, cooling, condensation, and evaporation. The effectiveness of heat exchanger tubes is instrumental in determining the overall heat transfer efficiency, reliability, and longevity of the heat exchanger, making them indispensable components in technological applications.
Application of Heat Exchanger Tubes Across Diverse Industries
1. Chemical Industry: Within the dynamic realm of chemical production, heat exchanger tubes are pivotal in crucial processes like heating reaction materials, cooling products, and recovering waste heat. Their role significantly elevates energy utilization efficiency, enhancing overall production efficacy and sustainability.
2. Petroleum Industry: In the intricate process of petroleum refining, heat exchanger tubes are essential for heating crude oil and facilitating product separation. These tubes ensure the seamless and efficient progress of the refining process, contributing to the industry's operational excellence.
3. Power Industry: In the power sector, particularly within power plant boilers, heat exchanger tubes are vital for the precise heating or cooling of fluids, catering to the specific demands of power production, and ensuring consistent energy output.
4. Food Industry: In the realm of food processing, heat exchanger tubes are integral to heating and cooling both ingredients and final products. They play a critical role in maintaining precise temperature control throughout the production process, safeguarding quality and flavor.
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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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