Heat Exchanger ASTM A179 Seamless Tube , Cold Drawn Low Carbon Steel Tube
ASTM A179 SA179 Seamless Cold Drawn Low Carbon Steel Heat Exchanger Tubes and Condenser Tubes
Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger Tubes and Condenser Tubes
1. Applications:
For Boilers,
Superheaters,
Tubular Heat-Exchangers,
Condensers
2. Heat transfer apparatus
U bend Tubes according to Customer request
Material: Low Carbon Steel
Production: Seamless Cold Drawn
3. Size range: O.D.:3.2-76.2mm W.T.:1-15mm L: according to customer requirement.
4. Steel grade SA179 Chemical Composition & Mechanical properties
| C | Mn | P | S | Tensile Strength | Yeild point | Elongation | Hardness |
| 0.06-0.18 | 0.27-0.63 | 0.035Max | 0.035Max | min ksi[Mpa] 47[325] | min ksi[Mpa] 26[180] | ≥35% | ≤72HRB |
Surface Finish:
Finish Tubes are free of scale.
We have normal heat treatment annealing with black surface.
Have bright annealing with grey and bright surface.
Finish Tubes are free of scale.
We have normal heat treatment annealing with black surface.
Have bright annealing with grey and bright surface.
Surface Finish:
Finish Tubes are free of scale.
We have normal heat treatment annealing with black surface.
Have bright annealing with grey and bright surface.
5.Heat Treatment:
Tubes are heat treated after the final cold draw pass at a temperature of 1200℉(650℃) or higher
6.Mechanical Testing:
Flattening Test
Flaring Test
Flange Test
Hardness Test
ASTM A179 SA179 Seamless Cold Drawn Low Carbon Steel Heat Exchanger Tubes and Condenser Tubes Packing Details : In bundles or in wooden boxes packaging
Delivery Details : 30-60days
In hexagonal bundles packaging with woven
In wooden boxes.
QUALITY CONTROL
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
Impact Testing
Tensile Strength Testing
Chemical Composition Testing
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample of SA179 boiler tubes for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us
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