SA179 ST35.8 Heat Exchanger Tubes
SA179 ST35.8 Mild Seamless Steel Round Pipe Thick Wall Pipe Boiler Chemcial Fertilizer
Material: Low Carbon Steel
Production: Seamless Cold Drawn
Size range: O.D.:3.2-76.2mm W.T.:1-15mm L: according to customer requirement.
Steel Grade and Chemical Compositions:
| C | 0.06-0.18 |
| Mn | 0.27-0.63 |
| P | ≤0.035 |
| S | ≤0.035 |
Mechanical Properties
Tensile Streghth: min ksi[Mpa] 47[325]
Yield Point: min ksi[Mpa] 26[180]
Elongation: ≥35%
Hardness: ≤72HRB
Heat Treatment:
Tubes are heat treated after the final cold draw pass at a temperature of 1200℉(650℃) or higher
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.
Mechanical Testing:
Flattening Test
Flaring Test
Flange Test
Hardness Test
Applications:
for Boilers,Superheaters,
Heat-Exchangers,
High-pressure Boilers,
Steam Boilers
Cold Condensers and High-Pressure Services,
High-Temperature Services for Boiler Constructions
ASTM A179 steel tubes Chemical Composition
| Material | C | Mn | P | S |
| A179 | 0.06-0.18 | 0.27-0.63 | 0.035max | 0.035max |
ASTM A179 steel tubes Mechanical Property
| Material | Tensile Strength,Mpa | Yield Strength,Mpa | Elongation/% |
| A179 | Min 415 | Min 205 | Max 20 |
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.
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 Round steel tubes heat exchanger tubes ASTM A179 ASME SA179 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.
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