4145H,79.4mm,3 1/8 in Outer Diameter Non Magnetic Drill Collar for Oil Drilling Equipment

Description:

Drill collars are manufactured from 4145H modified steel.Drill collars are bored and drifted to API Spec 7-1 and fully heated to meet or exceed the mechanical property requirements of API Spec.Hardness range of 285-341HB and a charpy “V”notch impact value of 54 joules are guaranteed one inch below the surface

When enquiries or orders,please specify:

Slick or spiral ;  Drill collar OD ;  Drill collar bore ;  Length of drill collar;  Connection type

Applications:

Drilling tool stabilizer is an important tool for oil, gas and geology exploration drilling engineering to prevent well deflection. Drill collars,heavy weight drill pipe and lifting subs are tools  matched with stabilizers.

Drill collars are bored and drifted to API Spec 7-1 and fully heated to meet or exceed the mechanical property requirements of API Spec.

Specifications:

1.Material:4145H,4145Mod,40CrMnMo e ct.

2. Standard size, inner diameter and thread for drill collar

No.	Outer diameter		Inner diameter		Length mm	Should chamfering diameter	Bending strength
	mm	in	mm	in
NC23-31	79.4	3 1/8	31.8	1 1/4	9150	76.2	2.57:1
NC26-35	88.9	3 1/2	38.1	1 1/2	9150	82.9	2.42:1
NC31-41	104.8	4 1/8	50.8	2	9150 / 9450	100.4	2.43:1
NC35-47	120.7	4 3/4	50.8	2	9150 / 9450	114.7	2.58:1
NC38-50	127.0	5	57.2	2 1/4	9150 / 9450	121.0	2.38:1
NC44-60	152.4	6	57.2	2 1/4	9150 / 9450	144.5	2.49:1
NC44-60	152.4	6	71.4	2 13/16	9150 / 9450	144.5	2.84:1
NC44-62	158.8	6 1/4	57.2	2 1/4	9150 / 9450	149.2	2.91:1
NC46-62	158.8	6 1/4	71.4	2 13/16	9150 / 9450	150.0	2.63:1
NC46-65	165.1	6 1/2	57.2	2 1/4	9150 / 9450	Mr. Frank li Tel: 86-393-6802520 Contact to this supplier Didn't find what you're looking for? Post Buying Lead or contact HiSupplier Customer Service Center  for help! Related Search Drill Collar    Magnetic Drill    Collars    Magnetic Core Drill    Magnetic Base Drill    Magnetic Drill Stand    More>> Find more related products in following catalogs on Hisupplier.com Electronic & Electrical >> Electrical Product Agents × Company Info Jiyuan City Kunyuan Forging Co., Ltd. [China (Mainland)] Business Type:Manufacturer City: Puyang Province/State: Henan Country/Region: China (Mainland) View Contact Details You May Like: prev seamless rolled ring rolled steel rings industrial rollers conveyor belt rollers engine crank shaft custom forged cranksh... drill string stabilizer Integral Blade S... welded blade stabilizer Integral Blade S... non magnetic drill collars Drilling Coll... non mag drill collar Drilling Collar drill string stabilizer welded blade sta... rolling mill rollers conveyor belt rolle... rolling mill rollers industrial rollers 42CrMo 40CrMo Rolling Mill Rolls , Alumi... 42CrMo 450 - 800mm Rolling Mill Rolls us... 1650mm - 1850mm Roll Core 42CrMo Rolling... industrial MC3 MC5 9Cr2MoR Rolling Mill ... 9Cr3Mo / MC3 / MC5 Cold Steel Forging ro... 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