8-5/8inch API 5CT J55 K55 Oil Casing Tube

• Type: Seamless
• Technique: Hot Rolled
• Material: API J55 K55
• Model NO.: J55 K55
• Surface Treatment: Black Painting Coating
• Usage: Pipeline Transport, Oil/Gas Drilling
• Section Shape: Round
• Transport Package: in Bundles
• Trademark: kcgy
• Origin: China

Product Description

API 5CT J55 K55 OIL CASING TUBE

API 5CT is a specification for casing and tubing for petroleum and natural gas industries-used for wells. This Standard specifies
the technical delivery conditions for steel pipes (casing, tubing and pup joints), coupling stock, coupling material and accessory
material and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3). Grade J55 Casing Tubing is
an API 5CT oil casing pipe and mostly utilized for oil well with varied end connections such as non-Upset ends or an external upset
end.The API J55 casing and tubing have wide application used in the shallow wells, geothermal wells, and water wells in the natural
gas and coalbed methane due to its lower price relatively. WLD steel is a leading API 5CT casing and tubing manufacturer and
supplier, we provide not only a broad range of API 5CT J55 oilfield casing pipe and API 5CT J55 tubing but also casing coupling,
perforated pipe and more.

Grade	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
API 5CT J55	0.34-0.39	0.20-0.35	1.25-1.50	0.020	0.015	0.15	0.20	0.20	/

Steel Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Total elongation under load %
API 5CT J55	379-552	≥517	0.5

Item		Allowable tolerance
Outer diameter	Pipe body	D≤101.60mm±0.79mm
		D≥114.30mm+1.0%
		-0.5%
Wall thickness		-12.5%
Weight	Single piece	+6.5%+3.5%
	Total weight	-1.75

Connections

API 5CT is applicable to following connections which complied with API SPEC 5B:
• SC: Short round thread casing
• LC: Long round thread casing
• BC: Buttress thread casing
• NU: Non-upset tubing
• EU: External upset tubing
• IJ: Integral tubing connections
• Premium connections like VAM TOP, NEW VAM

Reference Inspection for J55/K55

Visual inspection for pipe surface
Dimension check
Mechanical test on tensile strength, yield strength and elongation
Chemical analysis
NDT test including Magnetic particle, Ultrasonic Test, Hydrostatic Test
Charpy impact test
Flattening tests
Hardness test
Drift test
Thread ends check with thread gauge and coupling check

J55 VS K55 (PSL1 and PSL2)

J55 and K55 are similar material in chemical composition and mechanical properties, especially J55 has lower minimum tensile
requirement and lower elongation, others specifications are same like heat treatment methods, NDE test, Charpy Impact test,hydrostatic test.
J55/K55 minimum yield strength: 379-552 Mpa;
J55 minimum tensile strength: 517 Mpa, elongation ≥ 19%;
K55 minimum tensile strength: 655 Mpa, elongation ≥ 15%.

Heat treatment methods for J55/K55 Pipes

PSL1: J55 and K55 are the same (delivery condition hot rolled without heat treatment);
PSL2: J55, K55 casing and tubing should be the full length normalized or normalized and tempered, if thickened, should be
thickened after normalizing or normalizing and tempering.

Length Range:
R1: 4.88 to 7.62 meters, permissible variation max 1.83 meters, and permissible length min 5.49 meters.
R2: 7.62 to 10.36 meters.
R3: 10.36 to 14.63 meters

Q1:How about the quality?
A:Third party inspections are always welcomed, like TUV, BV, SGS.   All of the goods will be released together with MTC and stamped by TPI. 

Q2: Can you accept customization?
A: Yes.we can do customization for you.

Q3: Do you provide samples? Free or not?
A: Yes, we could offer the sample for free but do not pay the cost of freight.

Q4: How long is the delivery time?
A: Generally about 5-10 days if the goods in stock. Or will be 15-30 days if not in stock.

Q5: How about the trade terms?
A: EXW, FOB, CFR, CIF, LC will be accepted.

CONTACT
AMY(MS)
 
 
BAOWU ALUMINUM (SHANDONG) CO.,LTD