Mayhew Junior Drill Pipes 2 7/8" 2 3/8" 10 ft Long for Geological Drilling

Mayhew Jr (Junior) drill pipe engineered with weld on joints

NC26

2-7/8" IF modified drill pipe:

2-7/8" FEDP drill pipe:

3-1/2" API drill pipe:

ROSCHEN is the best suitable Mayhew Jr (Junior) drill pipe manufacturer and supplier as long as you need flexible delivery time, we design and product day and night in order to deliver on schedule, One Stop Delivery is also available as long as you trust us, we provide the world fastest before and after sales service in your city office or mining office, we are not just a good manufacturer, we also provide our honest solutions to solve your problems. In a word, we are a family and we are looking for friends and partners, and being friends first.

How about ROSCHEN’s drill pipe?

Our drill pipe is used in most rotary drilling operations (shallow and deep). API drill pipe are fabricated by various API certified manufacturers around the world, principally for use in the drilling of deep wells for the recovery of oil and natural gas. API drill pipe size is denoted by the outside diameter of the pipe body and its associated nominal (pipe body) weight per unit length. The nominal weight per unit length defines the wall thickness and the inside diameter. The lengths of drill pipe elements called pipe body and tool joints, When tool joints (box and pin) are added to a pipe body the average actual weight per unit length of the drill pipe element is increased above the pipe body nominal weight per unit length. API drill pipe is also classified by API material (steel) grade. The API material grade designations and respective standards normally decide minimum yield, maximum yield, and minimum tensile strength of the steel grade. The actual steel used to produce the various API grades for drill pipe fabrication is one of the AISI grade classifications of steel produced in US steel mills. For an AISI grade of steel to be used to fabricate drill pipe of a particular API grade the AISI grade must satisfy the minimum and maximum specification.

 ROSCHEN GROUP

ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mineral tools, equipment products quality stable and reliable.

ROSCHEN Group Limited is a manufactory with years of research and development for the mining, mineral tools, equipment. We are capability to produce high performance world class products and control excellent quality. Our main product includes tricone bit, diamond core bits, drill pipe, core barrel, TCI tricone bit, mill tooth tricone bit, RC hammer, DTH bit, etc.

ROSCHEN Manufactory PROCESS

ROSCHEN Sales Value Growing Up!

ROSCHEN'S MISSION

1. Strive to create and supply Best quality products for the industry that last longer than the average products.

2. Provide excellent service for our clients.  24 hour-7 days /week schedule to get our clients what they need – FAST.