Casing pipes are what are place in the hole once the drill if finished. This keeps the shape for the hole and offers a framework to work with. This strengthens the hole that was just drilled and takes away the hazard of the hole collapsing and effecting a cave in. The tubes are mainly alloy steel tube to withstand a lot of inner earth pressure.
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N80 casing pipe, J55 casing pipe, K55 casing pipe are general grade tubing that widely used in oil and gas drilling activities. As we know Grade J55/K55 is the low grade in API 5CT specification for casing and tubing. A higher grade than J55/K55 is N80, it is a medium grade divides in N80-1 and N80-Q.
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Product Details
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Product Name N80 J55 K55 casing pipe
StandardAPI 5CT, ASTM A519, EN10305-1
MaterialN80 (N80-1, N80-Q), J55, K55
DimensionOD: 16-245mm, WT1-32mm
LengthAccording to client鈥檚 requirements
StraightnessStandard Class: 0.5/1000mm; Superior Class: 1/3000mm
Delivery ConditionStress Relieved Annealed (SRA)
CertificateISO 9001, IATF 16949
ApplicationsDrill rod, casing
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Chemical Composition
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Steel GradeCSiMnPSCrNiCuAlV
N800.34~0.380.20~0.351.45~1.70鈮?.020鈮?.015鈮?.15聽聽聽0.11~0.16
J550.34~0.390.2~0.351.25~1.5鈮?.020鈮?.015鈮?.015鈮?.2鈮?.2鈮?.02聽
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Casing Tube Dimensions
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Spec.OD (mm)ID (mm)
AW57.148.4
BW73.060.3
NW88.976.2
HW114.3101.6
PW139.7127
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Mechanical Properties
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Steel GradeDelivery ConditionTensile Strength Min (Mpa)Yield Strength Min (Mpa)Elongation Min
N80-QQuenched and tempered鈮?89552~758-
N80-1Normalized and tempered鈮?89552~758-
J55Normalized65537911%
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Advantages
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鈼?High straightness with special attention to tube ends
鈼?Tight tolerances, low eccentricity
鈼?Good strength and wear resistance
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FAQ
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1. Q: Are you a trading company or manufacturer?
聽 聽 聽 A: We are a manufacturer and solution provider. Certified with ISO9001 & IATF16949, Dingxin has 20 years鈥?experience in the production of drill rod and casing pipe.
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2. Q: What kind of information or parameters are indicated in MTC?
聽 聽 聽 A: Mill test certificates indicate chemical analysis, mechanical properties, steel grade, batch NO., heat NO., straightness, etc.
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3. Q: What is your terms of payment
聽 聽 聽 A: 30% advance payment, 70% balance against B/L copy.
聽China Casing Tube
website:http://www.dingxinsteeltube.co....m/tube-for-mining-an
