API 7-1 Non-Magnetic Drill Collar for Oil and Gas Drilling

• After-sales Service: Yes
• Warranty: 1year
• Manufacturing Process: CNC Milling
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: 3-1/8~11
• Transport Package: Wooden Case
• Specification: 114
• Trademark: zx
• Origin: China
• Production Capacity: 200

Product Description

Product Description

The Non-magnetic drill collar is made of a kind of low carbon high chrome-manganese alloy steel,material normally is P530 or P550, which is refined after strict chemical composition ratio and forged to achieve its mechanical properties, this kind of drill collar has superb mechanical properties of low permeability and high strength. Mainly used for downhole drilling.

Our Strict control of chemical composition and special forging process guarantee the excellent mechanical properties of our non magnetic drill collar.

Product Parameters

Connection Type	OD		ID
	mm	in	mm	in
NC23-31	79.4	3 1/8	31.8	1 1/2
NC26-35(2 3/8 IF)	88.9	3 1/2	38.1	1 1/2
NC31-41(2 7/8 IF)	104.8	4 1/8	50.8	2
NC35-47	120.6	4 3/4	50.8	2
NC38-50(31/2IF)	127	5	57.2	2 1/4
NC44-60	152.4	6	57.2	2 1/4
NC44-60	152.4	6	71.4	2 13/16
NC44-62	158.8	6 1/4	57.2	2 1/4
NC44-62(4IF)	158.8	6 1/2	71.4	2 13/16
NC44-65(4IF)	165.1	6 1/2	57.2	2 1/4
NC44-65(4IF)	165.1	6 1/2	71.4	2 13/16
NC44-67(4IF)	171.4	6 3/4	57.2	2 1/4
NC50-672(41/2IF)	171.4	6 3/4	71.4	2 13/16
NC50-70(41/2IF)	177.8	7	57.2	2 1/4
NC50-70(41/2IF)	177.8	7	71.4	2 13/16
NC50-72(41/2IF)	184.2	7 1/4	71.4	2 13/16
NC56-77	196.8	7 3/4	71.4	2 13/16
NC56-80	203.2	8	71.4	2 13/16
6 5/8 REG	209.6	8 1/4	71.4	2 13/16
NC61-90	228.6	9	71.4	2 13/16
7 5/8 REG	241.3	9 1/2	76.2	3
NC70-97	247.6	9 3/4	76.2	3
NC70-100	254	10	76.2	3
8 5/8 REG	279.4	11	76.2	3

Packaging & Shipping