Astm A523 Plain End Seamless Welded Pipe / Erw Steel Pipe For High Pressure
| Product Name | Plain End Seamless and ERW Steel Pipe for High-Pressure |
| Standard | ASTM A523, A370, A751, E59, ANSI B36.10 |
| Techinique | Electric Resisitance Welded |
| Type | Seamless and Welded |
| Test | Flattening Test, Hydrostatic Test |
| Coatings | The pipe shall not be given a mill coating of paint, oil, or any other material either inside or outside |
| Application | High Pressure pipe-type electric cables |
Chemical Requirements
| | Carbon, max | Manganese, max | Phosphorus, max | Sulfur, max | ||||
| | Heat | Product | Heat | Product | Heat | Product | Heat | Product |
| Grade A Seamless ERW | 0.22 0.21 | 0.25 0.25 | 0.90 0.90 | 0.95 0.95 | 0.035 0.035 | 0.045 0.045 | 0.050 0.050 | 0.060 0.060 |
| Grade B Seamless ERW | 0.27 0.26 | 0.30 0.30 | 1.15 1.15 | 1.20 1.20 | 0.035 0.035 | 0.045 0.045 | 0.050 0.050 | 0.060 0.060 |
Tensile Requirements
| | Tensile Strenth, min, ksi (MPa) | Yield Strenth, min, ksi (MPa) |
| Geade A | 48 (330) | 30 (205) |
| Grade B | 60 (415) | 35 (240) |
| Wall Thickness | Elongation in 2 in. or 50 mm, min, % | ||
| mm | Grade A | Grade B | |
| 5/16 (0.312) | 7.94 | 35.0 | 30.0 |
| 9/32 (0.281) | 7.14 | 33.2 | 28.0 |
| 1/4 (0.250) | 6.35 | 31.5 | 27.0 |
| 7/32 (0.219) | 5.56 | 29.8 | 25.5 |
| 3/16 (0.188) | 4.76 | 28.0 | 24.0 |
| 5/32 (0.156) | 3.97 | 26.2 | 22.5 |
| 1/8 (0.125) | 3.18 | 24.5 | 21.0 |
| 3/32 (0.094) | 2.38 | 22.8 | 19.5 |
| 1/16 (0.062) | 1.59 | 21.0 | 18.0 |
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 A523 Plain End Seamless and ERW Steel Pipe for High-Pressure
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