1541G105 S135 Thread Types Coupling Drill Steel Pipe DZ60 DZ50
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
| Minimum Order Quantity : | 5 TON | Price : | 800-3000 / Ton |
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| Packaging Details : | in wooden boxes or in hexagonal bundles | Delivery Time : | 30-35 work days |
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability : | 50000 Ton/Tons per Year |
| Place of Origin: | Zhejiang, China | Brand Name: | Torich |
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| Certification: | ISO14001:2008, TS16949, CE PED, TUV, API,BV | Model Number: | JIS G3465 |
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Detail Information |
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| Name: | JIS G3465 Alloy Steel Grade Oil Drill Mineral Mining Seamless Steel Tubes | Technique: | Cold Drawn |
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| Surface: | Oiled | Usage: | Oil Drill Mineral Mining |
| Material: | STM-R780, ZT380,490,520,540,590,640,740 | OD: | 6-420mm |
| WT: | 0.5-50mm | Length: | 4000-12500mm |
| High Light: | drilling steel pipe,cold drawn steel pipe |
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Product Description
Size range: O.D.:6-420mm W.T.:0.5-50mm L:4000-12500mm according to customers' actual application and production.
Application : For Geological Drill underground for Oil and Mineral, for Mining Exploration,for Wire Line Drill Rod, Casing Tube, Core Barrel Tubes, Couplings
Steel Grade: STM-R780, ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740
Material: 37SiMn 38CrMoAl 30CrMnSi(A)
Heat treatment: Normalized, Q+T
Chemical Compositon
| CHEMICAL COMPOSITION % max | |
| P | S |
| 0.030 | 0.030 |
Bending Degree
| Nominal Wall Thickness/mm | Bending Degree/(mm/m) |
| ≤15 | ≤1.5 |
| ＞15 | ≤2.0 |
The bending degree of the wire-line drill rod is not larger than 1.0 mm per meter.
Tolerance
| Standard | Producton Method | Tube Size | Tolerance | |
| GB/T 9808-2008 | Hot rolled | OD | (+1.0%D) +0.65 (-0.5%D) -0.35 |
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| WT | ≤10 | (+15%S) +0.45 (-10%S) -0.35 |
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| >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 | ||
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 |
~ |
Testing items and sampling quantity for steel tube
| Serial number | Testing item | Sampling quantity |
| 1 | Chemical composition | 1 sample from each furnace |
| 2 | Tensile test | 1 sample from each batch |
| 3 | Ultrasonic examination | All |
| 4 | Eddy current test | All |
| 5 | Magnetic flux leakage test | All |
Grade comparison table
| This standard | JIS G 3465-2006 | Related industry standard |
| ZT380 | — | DZ240 |
| ZT490 | — | DZ250 |
| ZT520 | STM-R780 | — |
| ZT540 | — | DZ255 |
| ZT590 | — | DZ260 |
| ZT640 | — | DZ265 |
| ZT740 | — | DZ275 |
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 |
Product Picture:
Tag: Drill Steel Pipe
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| TORICH INTERNATIONAL LIMITED |
| Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China |
| 86-574-88086983 |
| sales@steel-tubes.com |