Application: Wire-line coring drilling rod, geology prospecting, drilling machine, etc.
Size Range: OD 33-95mm, WT 2-10mm.
Steel Grade: 45MnMoB, 30CrMnSiA, KWK850.
Mechanical Properties:
|
Grade
|
Delivery condition
|
Yield Point
|
Tensile Strength
|
Elongation
|
Drilling Depth Record
|
|
45MnMoB
|
Quenching and Tempering
|
≥750Mpa
|
≥920Mpa
|
≥12%
|
2401.12m
|
|
30CrMnSiA
|
Quenching and Tempering
|
≥885Mpa
|
≥1080Mpa
|
≥10%
|
2212.88m
|
|
KWK850
|
Quenching and Tempering
|
≥950Mpa
|
≥1020Mpa
|
≥16%
|
2706.68m
|