heavy weight drill pipe

heavy weight drill pipe
1. Made from chrome manganese low carbon austentic alloy
2. Good mechanical properties
SFMC Non-magnetic heavy weight drill pipe has the listed mechanical properties along its overall length.
Size OD (in)
Yield Strength
σ0.2
MPa(psi)
Tensile strength
σb
MPa(psi)
Elongationδ4
%
Reduction of area
%
Impact
AKV
ft.lb
3-1/8~6-3/4
≥758(110,000)
≥827(120,000)
≥18
50
≥50
7~10
≥689(100,000)
≥758(110,000)
≥20
50
≥50

Non-magnetic properties,
Magnetic permeability
(when MPS=1×10
5
/
4πNm),
1. relative Max, 1.010 2. Average,μr≤1.005
Magnetic field gradient
(hot spots), Max: B≤0.05 micro Tesla/100mm
Types of SFMC Non-magnetic products,
1. Drill Collars
2. Short Drill Collars
3. Heavy Wall Drill Pipe
4. Crossover Subs
5. Integral Stabilizers