API 5CT Q125 Cấu kiện giếng sâu

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).

API Q125 is an API 5CT oil ống vỏ grades and mostly used for general use in deep wells with varied end connections such as non-upset ends or an external upset end. Impact testing is required for each heat and/or lot. NDT inspection typically EMI and UT are required on this product. WLD steel is a leading API 5CT casing and tubing manufacturer and supplier, we provide a broad range of API 5CT Q125 oilfield casing pipe, API 5CT Q125 tubing but also casing coupling, perforated pipe, and more.

API 5CT Grade Q125 Casing Tubing Color Code

Tên	Vỏ	Cặp nối
Q125	A bright orange band	Entire orange coupling

API 5CT Q125 Chemical Composition

Đánh giá	C	Mn	Mo	Cr	Ni	P	S
Q125 Type1	≤0.35	≤1.00	≤0.75	≤1.20	≤0.99	0.02	0.01
Q125 Type2	≤0.35	≤1.00	NL	NL	≤0.99	0.020	0.020
Q125 Type3	≤0.50	≤1.90	NL	NL	≤0.99	0.030	0.020
Q125 Type4	≤0.50	≤1.90	NL	NL	≤0.99	0.030	0.020

API 5CT Q125 Mechanical Property

Độ cao	Type	Yield strength MPa	Tensile strength min. MPa	Total elongation under load %
Q125	Type1-Type4	862-1034	≥931	0.65

API 5CT Q125 Tolerance

Mục		Độ dung lượng cho phép
Đường kính ngoài	Thân ống	D≤101.60mm ± 0.79mm
		D≥114,30 mm + 1,0%
		-0.5%
Độ dày của bức tường		-12.5%
Wight	Một mảnh	+6.5%+3.5%
	Tổng trọng lượng	-1.75

API 5CT Q125 Size Chart

Đường kính ngoài		Độ dày của bức tường	Cân nặng	Độ cao	Có ren	Chiều dài
trong	mm	kg/m	lb/ft
4 1/2″	114.3	14.14-22.47	9.50-11.50	Q125	LTC/STC/BTC	R1/R2/R3
5″	127	17.11-35.86	11.50-24.10	Q125	LTC/STC/BTC	R1/R2/R3
5 1/2″	139.7	20.83-34.23	14.00-23.00	Q125	LTC/STC/BTC	R1/R2/R3
6 5/8″	168.28	29.76-35.72	20.00-24.00	Q125	LTC/STC/BTC	R1/R2/R3
7″	177.8	25.30-56.55	17.00-38.00	Q125	LTC/STC/BTC	R1/R2/R3
7 5/8″	193.68	35.72-63.69	24.00-42.80	Q125	LTC/STC/BTC	R1/R2/R3
8 5/8″	219.08	35.72-72.92	24.00-49.00	Q125	LTC/STC/BTC	R1/R2/R3
9 5/8″	244.48	48.07-86.91	32.30-58.40	Q125	LTC/STC/BTC	R1/R2/R3
10 3/4″	273.05	48.73-97.77	32.75-65.70	Q125	LTC/STC/BTC	R1/R2/R3
11 3/4″	298.45	62.50-89.29	42.00-60.00	Q125	LTC/STC/BTC	R1/R2/R3
13 3/8″	339.72	71.43-107.15	48.00-72.00	Q125	LTC/STC/BTC	R1/R2/R3