TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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| Standard | Producton Method | Tube Size | Tolerance |
| GB/T 9808-2008 | Hot rolled | OD | (+1.0%OD) +0.65 / (-0.5%OD) -0.35 |
| WT≤10 WT>10 | (+15%WT) +0.45 / (-10%WT) -0.35 (+12.5%WT, -10%WT) | ||
| Cold Drawn | OD | ±0.50%OD or ±0.20 | |
| WT | ±8%WT or ±0.15 | ||
| Q(N)/ T118-2010 | Cold Drawn | OD | ±0.40%OD or ±0.20 |
| WT | ±7%WT or ±0.15 |
| Designation | Outside Diameter (mm) | Inside Diameter (mm) | ||
| Min | Max | Min | Max | |
| A Wireline | 44.45 | 44.70 | 34.82 | 35.07 |
| B Wireline | 55.55 | 55.90 | 45.95 | 46.30 |
| N Wireline | 69.95 | 70.30 | 60.05 | 60.30 |
| H Wireline | 88.90 | 89.38 | 77.62 | 78.10 |
| P Wireline | 114.30 | 114.78 | 102.79 | 103.27 |
| Chemical composition | |||||||||
| Stee Grade | C | Si | Mn | P max | S max | Cu max | Cr | Mo | B |
| T600 (45MnMoB) | 0.43-0.48 | 0.17-0.37 | 1.05-1.35 | 0.02 | 0.015 | 0.20 | ~ | 0.20-0.25 | 0.001- 0.005 |
| T750 (30CrMnSiA) | 0.28-0.34 | 0.90-1.20 | 0.80-1.10 | 0.02 | 0.015 | 0.20 | 0.8-1.1 | ~ | ~ |
| T850 4140 | 0.38-0.43 | 0.17-0.35 | 0.70-0.90 | 0.02 | 0.015 | 0.20 | 0.9-1.1 | 0.15-0.25 | ~ |
| Mechanical Properties | |||||
| Stee Grade | Tensile Strength Mpa min | Yield Strength Mpa min | Elongation % min | HRC | Tensile Strength Mpa min |
| T600 | 790 | 600 | 14 | ~ | |
| T750 | 850 | 750 | 14 | 26-31 | QT |
| T850 | 950 | 850 | 14 | 28-33 | QT |
| Mechanical Properties | ||||
| Stee Grade | Tensile Strength Mpa min | Yield Strength Mpa min | Elongation % min | Tensile Strength Mpa min |
| ZT380 | 640 | 380 | 14 | Normlized |
| ZT490 | 690 | 490 | 12 | Normlized |
| ZT540 | 740 | 590 | 12 | Normlized |
| ZT590 | 770 | 590 | 12 | Normlized |
| ZT640 | 790 | 640 | 12 | QT |
| ZT740 | 840 | 740 | 10 | QT |
| T850 | 950 | 850 | 15 | QT |
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, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to 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