| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 1 Year |
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Experience the robust efficiency of our Cold Drawn Tubes, crafted in compliance with the stringent ASTM A179 standard. These seamless low-carbon steel tubes are meticulously engineered for optimal performance in heat exchangers, condensers, and various heat transfer equipment. Boasting a fine wall thickness, they are the ideal choice for tubular heat exchangers and other sophisticated heat transfer applications, ensuring unparalleled reliability and effectiveness.
Our ASTM A179 standard steel pipes are synonymous with superior heat transfer capabilities, backed by solid mechanical strength and outstanding corrosion resistance. They are the preferred choice for industries ranging from petroleum and chemical to pharmaceutical, food, light industry, machinery, and instrumentation, where reliability and performance in heat exchangers and condensers are paramount.
Heat exchangers, the unsung heroes of industrial processes, are pivotal in transferring heat from hot to cold fluids, making them indispensable across sectors such as chemical, petroleum, power, and food. These versatile devices can function as heaters, coolers, condensers, evaporators, and reboilers, contributing significantly to the efficiency and productivity of chemical production and more.
Within the heart of a heat exchanger lies the heat exchange tube, expertly designed to facilitate the transfer of thermal energy between two media. Renowned for its high thermal conductivity and excellent isothermal characteristics, it ensures a rapid and seamless flow of thermal energy, making it a cornerstone component for efficient heat exchange.
The primary role of heat exchanger tubes is to enable efficient heat transfer between two or more fluids at varying temperatures, thereby facilitating crucial processes like heating, cooling, condensation, and evaporation. The quality and design of these tubes are critical, as they directly influence the heat exchanger's effectiveness, durability, and operational longevity.
Application of heat exchanger tubes in different industries
1. Chemical industry: Embrace enhanced energy efficiency with our heat exchanger tubes, utilized in critical processes such as the heating of reaction materials, product cooling, and the recovery of waste heat. These applications significantly boost energy utilization efficiency, ushering in a new era of sustainable chemical production.
2. Petroleum industry: In petroleum refining, our heat exchanger tubes are integral to heating crude oil and facilitating product separation. They play a crucial role in ensuring the seamless flow of the production process, bolstering efficiency and reliability.
3. Power industry: Within power plant boilers and other equipment, heat exchanger tubes are indispensable for heating or cooling fluids, meeting the rigorous demands of power production with precision and effectiveness.
4. Food industry: In the realm of food processing, heat exchanger tubes are vital for the precise heating and cooling of food ingredients and products, guaranteeing optimal temperature control throughout the production process and ensuring 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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