| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 1 Year |
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The exceptional ASTM A179 standard is designed for seamless cold drawn low-carbon steel pipes, tailored for excellence in the construction of heat exchangers, condensers, and similar high-efficiency heat transfer equipment. These steel pipes stand out with their minimal wall thickness, making them an ideal choice for advanced tubular heat exchangers and condensers, ensuring optimal performance in heat transfer applications.
Crafted to perfection, ASTM A179 standard steel pipes offer superior heat transfer capabilities, robust mechanical strength, and impressive corrosion resistance. These pipes are indispensable across a wide array of industries, including petroleum, chemical, pharmaceutical, food, light industry, machinery, and instrumentation, serving efficiently in vital equipment such as heat exchangers and condensers.
A heat exchanger is a sophisticated device engineered to transfer a portion of thermal energy from a hot fluid to a cooler one, effectively known as a heat exchanger. These critical components are prevalent in numerous industrial sectors, including chemical, petroleum, power, and food, playing an essential role in elevating production processes. Heat exchangers serve diverse functions as heaters, coolers, condensers, evaporators, and reboilers within chemical production, showcasing their broad applicability and indispensable utility.
A heat exchange tube, a vital component of a heat exchanger, is strategically placed inside the cylinder to facilitate efficient heat exchange between two media. Designed with high thermal conductivity and excellent isothermal properties, it is a sophisticated device engineered to expediently transfer thermal energy from one point to another, optimizing heat transfer processes.
Primarily, heat exchanger tubes are engineered to proficiently facilitate heat transfer between multiple fluids at varying temperatures, thereby achieving critical processes such as heating, cooling, condensation, and evaporation. The performance of these tubes is crucial, as it directly influences the heat transfer efficiency, reliability, and longevity of the heat exchanger.
Application of Heat Exchanger Tubes Across Diverse Industries
1. Chemical Industry: Within the realm of chemical production, heat exchanger tubes are pivotal in key processes including the heating of reaction materials, the cooling of end products, and the recovery of waste heat. These critical applications substantially enhance energy utilization efficiency, driving productivity and sustainability.
2. Petroleum Industry: During the intricate process of petroleum refining, heat exchanger tubes are essential for heating crude oil, facilitating product separation, and supporting various crucial processes, ensuring seamless and efficient production operations.
3. Power Industry: Integral to power plant operations, heat exchanger tubes are employed in boilers and other equipment to regulate the temperature of fluids, fulfilling the diverse thermal requirements of power production with precision.
4. Food Industry: In the realm of food processing, heat exchanger tubes are instrumental in the precise heating and cooling of food ingredients and products, maintaining stringent temperature control throughout the production process to ensure 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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