TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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| Standard | ASTM, GB, JIS, DIN |
| Matrial | 304, 304L, 316, 316L, TP409 Etc |
| Size | OD: 8-100mm*8-100mm WT: 1-8mm Length: max 12000mm |
| Production Method | Seamless Or Welded |
| Delivery Condition | Pickled and Annealed, or as customer's requirement |
| Test and Inspection | Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive Electric Test |
| Production Processs | The tubes shall be made from flat-rolled steel by an automatic welding process with no addition of the filler metal----cold drawn to square or rectangular shape tube----cut to the required length----deburr |
| Grade | TP304 | TP304L | TP304LN | TP316 | TP316L | TP316LN | TPXM-29 | TP304N |
| UNS | S30400 | S30403 | S30453 | S31600 | S31603 | S31653 | S24000 | S30451 |
| C, max | 0.08 | 0.035 | 0.035 | 0.080 | 0.035 | 0.035 | 0.080 | 0.080 |
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 11.5-14.5 | 2.00 |
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.060 | 0.045 |
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 |
| Si, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ni | 18.0-20.0 | 18.0-20.0 | 18.0-20.0 | 16.0-18.0 | 16.0-18.0 | 16.0-18.0 | 17.0-19.0 | 18.0-20.0 |
| Cr | 8.0-11.0 | 8.0-13.0 | 8.0-12.0 | 11.0-14.0 | 10.0-14.0 | 10.0-14.0 | 2.3-3.7 | 8.0-18.0 |
| Mo | --- | --- | --- | 2.00-3.00 | 2.00-3.00 | 2.00-3.00 | --- | --- |
| Nitrogen | --- | --- | --- | --- | --- | --- | --- | --- |
| Copper | --- | --- | --- | --- | --- | --- | --- | --- |
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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