Perforación geológica
Comercializamos todo tipo de tubos de precisión sin costura con diámetros exteriores que van desde los 10mm hasta 370mm y anchos de pared que van desde 1mm hasta 32mm de acuerdo a los estándares de GB, ASTM, DIN, JIS, y EN. Nuestros estándares principales son DIN2391, DIN1629, EN10305-1, ASTM A519, JIS G3445, JIS G4051 ,etc.
Size Range
- O.D 30-139.7 mm, WT 3-19mm
Executive Standard
- GB/T9808 Seamless Steel Tubes for Drilling
- GB/T 16950, Geological core drilling tools
- DIN2391, Seamless precision steel tubes
- EN10305-1, Steel tubes for precision applications Part 1: Seamless cold drawn tubes
- ASTM A519, Seamless Carbon and Alloy Steel Mechanical Tubing
- DCDMA, Diamond Core Drilling Manufacturers Association
- BS4019, Specification for rotary core drilling equipment
- JIS G3465, Seamless Steel Tubes for Drilling
- According to customer’s specific requirements
Steel Grade
- 45MnMoB, 30CrMnSiA, 30CrMo, 42CrMo, 40Mn2 ； 34CrMo4, 42CrMo4 ； 4130, 4135, 4140, 1541 and etc.
Delivery Condition
- Cold drawn and stress relieved (+SR) (BKS)
- Normalized (+N) (NBK)
- Quenched and Tempered (QT)