TORICH ASTM A214 ERW Carbon Steel Heat Exchanger Tubes 1000-1200 mm Length
Product Details
high carbon steel tube
,heat exchanger tubes
| Standard | ASTM A214, A450 |
| Matrial | Q195, Q215, Q235 etc Carbon Steel |
| Size | OD: 6.76.2mm WT: 1-20mm Length: 1-12m |
| Manufacture | Tubes are made by electric-resistance welding. |
| Surface Condition | The finished tubes are free of scale., slight amount of oxidation is not considered as scale |
| Hardness Requirements | The tubes shall have a hardness number not exceeding 72HRB. |
| Thermal Treatment: | After welding, all tubes are heat treated at a temperature of 1200℉(650℃) or higher and following by cooling in air or in a cooling chamber of a controlled atmosphere furnace. Cold drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200℉(650℃) or higher |
| Test and Inspection | - Flattening Test - Flange Test - Reverse Test - Hydrostatic or Nondestructive Electric Test |
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) | 20% | 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 | | | |
| C | 0.18 |
| Mn | 0.27 to 0.63 |
| P | ≤0.035 |
| S | ≤0.035 |
Production Show
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.
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 of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample 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
TORICH ASTM A214 ERW Carbon Steel Heat-Exchanger and Condenser Tubes
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