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| Categories | Geological Drilling Steel Tubes |
|---|---|
| Place of Origin: | China |
| Brand Name: | Torich |
| Model Number: | Geological Drilling Tube |
| Price: | NEGOTIATION |
| Packaging Details: | IN BUNDLES OR WOODEN BOX |
| Delivery Time: | 45-60 DAYS |
| Payment Terms: | T/T L/C |
| Supply Ability: | 20000 TONS PER YEAR |
| MOQ: | 5 TONS |
| Certification: | ISO9001,ISO14001,TS16949,DNV |
| Production Method: | Cold Drawn |
| Size range: | O.D.:6-95mm W.T.:1-10mm L:max12000mm |
| Company Info. |
| Torich International Limited |
| View Contact Details |
| Product List |
Straightness, Concentricity, Mechanical Properties can meet the requirement of DCDMA (USA), BS4019 (UK), METRIC (SWEDEN)T600 T750 T800
Applications: For Geological Drill underground for Oil and mineral, for mining High TS value
Size Range:O.D.:6-95mm W.T.:1-10mm L:max12000mm
| Standard | Producton Method | Tube Size | Tolerance | |
| GB/T 9808-2008 | Hot rolled | OD | (+1.0%D) +0.65 (-0.5%D) -0.35 | |
| WT | ≤10 | (+15%S) +0.45 (-10%S) -0.35 | ||
| ＞10 | (+12.5%S, -10%S) | |||
| Cold drawn | OD | ±0.50%D or ±0.20 | ||
| WT | ±8%S or ±0.15 | |||
| Q(N)/ T118-2010 | Cold drawn | OD | OD | ±0.40%D or ±0.20 |
| WT | WT | ±7%S or ±0.15 | ||
Normal Dimension:
| 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 |
Mechanical Properties:
| Stee Grade | Tensile Strength Mpa min | Yield Strength Mpa min | Elongation % min | HRC | Heat Treatment |
| T600 | 790 | 600 | 14 | ~ | N |
| T750 | 850 | 750 | 14 | 26-31 | QT |
| T850 | 950 | 850 | 14 | 28-33 | QT |
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:
| Steel | Tensile Strength Mpa | Yield Point Mpa | Elongation % | Heat treatment |
| Grade | 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 |
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