Place of Origin: | China |
Brand Name: | Torich |
Certification: | ISO9001 |
Model Number: | 40crni2mo |
Minimum Order Quantity: | 5tons |
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Price: | negotiation |
Packaging Details: | In bundles or in wooden boxes package |
Delivery Time: | 5-8 weeks |
Payment Terms: | L/C, T/T |
Supply Ability: | 1000tons per year |
Material: | 45MnMoB DZ40 DZ60 | Length: | Random Length |
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Machining: | Cut | Origin: | China |
End: | Plain | Certificate: | EN10304.3.1 |
42.4*6.8 45MnMoB DZ40 DZ60 Geological Drill Pipes
Key Word
|
45MnMoB Seamless Drill Tubes
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Material
|
45MnMoB, 10#, 20#, 45#, 4130, 4140, 16Mn etc
|
Size
|
OD: 5-420mm; WT: 0.5-50mm; Length: 3450mm, 3500mm, max12000mm
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Technique
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Cold Drawn Seamless
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Application
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For wire-line drill rods,core barel tubes,drill rods coupling casing
|
Chemical composition of 45MnMoB
C: 0.41-0.49, Si: 0.17-0.37, Mn: 0.9-1.2, S: 0.04max, P: 0.04max, Mo: 0.2-0.3, B: 0.001-0.005 |
Tolerance of Outer Diameter and Wall Thickness
Standard
|
Production Method
|
Tube Size
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Tolerance
|
|
GB/T9808-2008
|
Hot Rolled
|
OD
|
(+1.0%D) or +0.65
(-0.5%D) -0.35
|
|
WT
|
≤10
|
(+15%S)or +0.45
(-10%S) -0.35
|
||
>10
|
(+12.5%S, -10%S)
|
|||
Cold Drawn(rolled)
|
OD
|
±0.50%D or ±0.20
|
||
WT
|
±8%S or ±0.15
|
|||
Q(N)/T118-2010
|
Cold Drawn
|
OD
|
±0.40%D or ±0.20
|
|
WT
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±7%S or ±0.15
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Mechanical Property
Steel Grade
|
Tensile Strangth Rm/MPa
|
Specifies the non-proportional extension strength Rp0.2/MPa
|
Percentage elongation after fracture
A/% |
No less than
|
|||
ZT380
|
640
|
380
|
14
|
ZT490
|
690
|
490
|
12
|
ZT520
|
780
|
520a
|
15b
|
ZT540
|
740
|
540
|
12
|
ZT590
|
770
|
590
|
12
|
ZT640
|
790
|
640
|
12
|
ZT740
|
840
|
740
|
10
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