| Customization: | Available |
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| After-sales Service: | Support |
| Warranty: | 1 Year |
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Introducing the epitome of seamless engineering, our ASTM A179 standard low-carbon steel pipes redefine excellence in the manufacture of heat exchangers, condensers, and advanced heat transfer equipment. These pipes, crafted with precision, feature a meticulously designed small wall thickness, making them the ideal choice for tubular heat exchangers and condensers, where efficiency and reliability are paramount.
Our ASTM A179 standard steel pipes are celebrated for their superior heat transfer capabilities, robust mechanical strength, and exceptional corrosion resistance. Widely adopted in critical applications across diverse industries such as petroleum, chemical, pharmaceutical, food, light industry, as well as machinery and instruments, these pipes are instrumental in ensuring optimal performance of heat exchangers and condensers, contributing to the seamless operation of your systems.
Heat exchangers, the heart of thermal management, transfer precious heat from hot fluids to cold ones with remarkable efficiency. Ubiquitous across industrial sectors like chemical, petroleum, power, and food, these devices are indispensable in production, functioning as heaters, coolers, condensers, evaporators, and reboilers. They are paramount in enhancing thermal efficiency and are pivotal in a myriad of applications, underscoring their unmatched versatility and importance.
Heat exchange tubes are the backbone of heat exchangers, elegantly housed within the cylinder to facilitate the seamless transfer of heat between two media. Renowned for their unparalleled thermal conductivity and isothermal properties, these tubes are engineered to rapidly convey thermal energy, ensuring that heat exchange processes are both swift and effective.
The sophisticated design of heat exchanger tubes enables them to masterfully transfer heat between multiple fluids at varying temperatures, executing vital processes such as heating, cooling, condensation, and evaporation. The operational excellence of these tubes is critical, directly influencing the heat exchanger's overall efficiency, reliability, and longevity, thus ensuring sustained performance and durability in demanding conditions.
Application of Heat Exchanger Tubes in Different Industries
1. Chemical Industry: Heat exchanger tubes are the unsung heroes of chemical production, significantly enhancing energy utilization by adeptly managing key processes such as heating reaction materials, cooling products, and recovering waste heat. Their role is crucial in optimizing efficiency and productivity.
2. Petroleum Industry: In the realm of petroleum refining, heat exchanger tubes are indispensable, playing a vital role in heating crude oil, product separation, and other essential processes, ensuring the production process flows seamlessly and efficiently.
3. Power Industry: Within power plant boilers and similar equipment, heat exchanger tubes are trusted to heat or cool fluids precisely to meet the exacting requirements of power production, ensuring operational reliability and performance.
4. Food Industry: During the intricate processes of food production, heat exchanger tubes are crucial, expertly heating and cooling food ingredients and products to maintain strict temperature control, thereby ensuring quality and safety throughout the production timeline.
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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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