TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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Application: For cylinder barrels
Technique: Cold-finished, hot-finished, ERW
Grade and Designation
The tubes shall be classified into 7 grades, and their designations shall be as given in Table 1.
Table 1 Designation of Grade
| Designation of Grade | Traditional symbol |
| STC 370 STC 440 STC 510A STC 510B STC 540 STC 590A STC 590B | STC 38 STC 45 STC 52A STC 52B STC 55 STC 60A STC 60B |
Chemical composition:
| Designation of grade | C | Si | Mn | P | S | Nb or V |
| STC 370 | 0.25max | 0.35max | 0.30-0.90 | 0.040max | 0.040max | - |
| STC 440 | 0.25max | 0.35max | 0.30-0.90 | 0.040max | 0.040max | - |
| STC 510A | 0.25max | 0.35max | 0.30-0.90 | 0.040max | 0.040max | - |
| STC 510B | 0.25max | 0.55max | 1.50max | 0.040max | 0.040max | - |
| STC 540 | 0.25max | 0.55max | 1.60max | 0.040max | 0.040max | 0.15max |
| STC 590A | 0.25max | 0.35max | 0.30-0.90 | 0.040max | 0.040max | - |
| STC 590B | 0.25max | 0.55max | 1.50max | 0.040max | 0.040max | - |
Q: Are you trading company or manufacturer?
A: We are a professional steel pipes materials manufacturer.
Q: How long is your delivery time?
A: Generally it takes 7-14 days if the goods are in stock or 30-60 days if there is no stock, this mainly depends on quantity.
Q: Do you provide free samples?
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.