| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 1 Year |
|
Still deciding? Get samples of $ !
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
The ASTM A179 standard is meticulously crafted for seamless cold drawn low-carbon steel pipes, ensuring optimal use in the manufacture of heat exchangers, condensers, and similar heat transfer apparatus. These precision-engineered steel pipes boast a slender wall thickness, making them exceptionally well-suited for tubular heat exchangers, condensers, and analogous heat transfer devices.
ASTM A179 standard steel pipes are renowned for their stellar heat transfer performance, robust mechanical strength, and exceptional corrosion resistance. These attributes make them indispensable in various equipment like heat exchangers and condensers, serving industries such as petroleum, chemical, pharmaceutical, food, light industry, machinery, and instrumentation with outstanding reliability and efficiency.
A heat exchanger, a critical device in many industrial sectors, performs the vital task of transferring heat from a hot fluid to a cold fluid. Widely recognized as an essential component in industries including chemical, petroleum, power, and food, heat exchangers play a pivotal role in production. Whether functioning as heaters, coolers, condensers, evaporators, or reboilers in chemical manufacturing, their versatility and importance are unmatched.
The heat exchange tube, a cornerstone of the heat exchanger, is strategically placed within the cylinder to facilitate the transfer of heat between two media. It boasts high thermal conductivity and excellent isothermal characteristics, making it a device capable of swiftly channeling thermal energy from one location to another with remarkable efficiency.
Heat exchanger tubes are engineered to facilitate the crucial process of heat transfer between multiple fluids at varying temperatures, thereby enabling processes such as heating, cooling, condensation, and evaporation. The efficiency, reliability, and longevity of the heat exchanger are directly influenced by the performance of these tubes, underscoring their significance in industrial applications.
Application of heat exchanger tubes in different industries
1. Chemical industry: In the realm of chemical production, heat exchanger tubes are pivotal for key processes including the heating of reaction materials, cooling of products, and the recovery of waste heat, thereby dramatically enhancing energy utilization efficiency.
2. Petroleum industry: During the intricate process of petroleum refining, heat exchanger tubes play a crucial role in heating crude oil, facilitating product separation, and ensuring the seamless continuity of the production process.
3. Power industry: In power plant boilers and other equipment, heat exchanger tubes are vital for heating or cooling fluids, catering to the dynamic demands of power production with precision and efficiency.
4. Food industry: Within food processing, heat exchanger tubes are essential for the precise heating and cooling of food ingredients and products, ensuring meticulous temperature control throughout the production process for optimum results.
|
Permissible Variations in Outside Diameter
|
||
|
Outside Diameter
|
Permissible Variations, in. [mm]
|
|
| in. [mm] | over | under |
|
Hot-Finished Seamless Tubes
|
||
| 4[101.6] and under | 1/64[0.4] | 1/32[0.8] |
|
Welded Tubes and Cold-Finished Seamless Tubes
|
||
| 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]
|
0.008 [0.2] |
| 2 to 21/2 [50.8 to 63.5],excl |
0.010 [0.25]
|
0.010 [0.25] |
| 21/2 to 3[63.5 to 76.2],excl |
0.012 [0.3]
|
0.012 [0.3] |
|
Permissible Variations in Wall Thickness
|
||||||||
|
Outside
Diameter,
in. [mm]
|
Wall Thickness, %
|
|||||||
|
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
|
Over
0.180[4.6]
|
|||||
|
Over
|
Under
|
Over
|
Under
|
Over
|
Under
|
Over
|
Under
|
|
|
Seamless, Hot-Finished Tubes
|
||||||||
|
4 [101.6] and under
|
40 | 0 | 35 | 0 | 33 | 0 | 28 | 0 |
|
Seamless, Cold-Finished Tubes
|
||||||||
| over | under | |||||||
|
11/2[38.1] and under
|
20 | 0 | ||||||
| over 11/2[38.1] | 22 | 0 | ||||||
|
Welded Tubes
|
||||||||
|
All sizes
|
18 | 0 | ||||||
|
Permissible Variations in Weight Per Foot
|
||
|
Method of Manufacture
|
Permissible Variation in Weight
per Foot, %
|
|
|
Over
|
Under
|
|
|
Seamless, hot-finished
|
16 | 0 |
|
Seamless, cold-finished:
|
||
|
11/2 in. [38.1 mm] and under OD
|
12 | 0 |
|
Over 11/2 in. [38.1 mm] OD
|
13 | 0 |
|
Welded
|
10 | 0 |
|
Chemical Composition
|
|
|
Carbon, %
|
0.06-0.18
|
|
Manganese, %
|
0.27-0.63
|
|
Phosphorus, max, %
|
0.035
|
|
Sulfur, max, %
|
0.035
|
|
tensile properties
|
|
|
Tensile strength, min, ksi [MPa]
|
47 [325]
|
|
Yield strength, min, ksi [MPa]
|
26 [180]
|
|
Elongation in 2 in. or 50 mm, min, %
|
35 |
|
Hardness Requirements
|
|
| Hardness,max,HRB | 72 |
|
Mechanical Tests Required
|
|
|
Flattening Test
|
Extract 2 pcs from each batch and collect one specimen each for testing |
|
Flaring Test
|
Extract 2 pcs from each batch and collect one specimen each for testing |
|
Flange Test
|
Extract 2 pcs from each batch and collect one specimen each for testing |
|
Hydrostatic Test
|
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.
){kind=link}