Heat Exchanger Boiler Seamless Cold Drawn Steel Tube High Pressure ASTM A192
Cold drawn Seamless Carbon Steel ASTM A192 High Pressure Heat Exchanger Boiler Tubes
ASTM A192 Seamless carbon steel boiler tubes for high pressure service
Seamless Carbon Steel Boiler Tubes for High-Pressure Service
Applications:
for Boilers,Superheaters,
Heat-Exchangers,
High-pressure Boilers,
Steam Boilers
Cold Condensers and High-Pressure Services,
High-Temperature Services for Boiler Constructions
Size range: O.D.:12.7-177.8mm W.T.:1-25.4mm L: according to customer requirement
Manufacture:
Tubes are manufactured by seamless process and both hot finished and cold finished are applicable.
Heat treatment:
Hot finished tubes need not be heat treated.
Cold Finished tubes are heat treated after the final cold finishing pass at a temperature of 1200℉(650℃) or higher
Steel grade SA179 Chemical Composition & Mechanical properties
| C | Mn | P | S | Si | Tensile Strength | Yeild point | Elongation |
| 0.06-0.18 | 0.27-0.63 | 0.035Max | 0.035Max | 0.25Max | min ksi[Mpa] 47[325] | min ksi[Mpa] 26[180] | ≥35% |
Hardness
| Brinell Hardness | Rockwell Hardness Number |
| WT≥0.200in(5.1mm) | WT＜0.200in(5.1mm) |
| 137HRB | 77HRB |
Tolerance for OD and WT(SA-450/SA-450M)
| OD in(mm) | + | - | WT in(mm) | + | - |
| ＜1''(25.4) | 0.10 | 0.10 | ≤1.1/2''(38.1) | 20% | 0 |
| 1''～1.1''(25.4～38.1) | 0.15 | 0.15 | ＞1.1/2''(38.2) | 22% | 0 |
| ＞1.1/2''～＜2''(38.1～50.8 | 0.20 | 0.20 | | | |
| 2''～＜2.1/2''(50.8～63.5) | 0.25 | 0.25 | | | |
| 2.1/2''～＜3''(63.5～76.2) | 0.30 | 0.30 | | | |
| 3''～＜4''(76.2～101.6) | 0.38 | 0.38 | | | |
| 4''～＜7.1/2''(101.6～190.5) | 0.38 | 0.64 | | | |
| ＞7.1/2～9''(190.5～228.6) | 0.38 | 1.14 | | | |
Mechanical Testing:
Flattening Test
Flaring Test
Flange Test
Hardness Test
Hydrostatic Test
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 Cold drawn Seamless Carbon Steel ASTM A192 High Pressure Heat Exchanger 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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