Non-magnetic Of High Strength Drill Collars
- HHF
- HENAN
- 45DAYS
- 200pcs per month
We has been certified by API Q1 Quality Management System,License of Using Official API 7-1 Monogram.
We follow the Quality Policies'' Keep improving,Produce perfect machinery;Pursue excellence,Create First-Class Brand.''
Non-magnetic Of High Strength Drill Collars are widely welcomed by more than twenty countries as following:United States,Canada,Australia,France,Russia,Middle East,Brazil and Singapore etc.
Our Nationl leve II lab controls the quality.
Non Mag Drill Collar Non Mag Drill Stabilizer
Chemical composition
Grade | Chemical composition and its content % | ||||||
C | Si | Cr | Mn | Ni | Mo | N | |
W-1 | ≤0. 08 | ≤ 0.8 | 13. 5 ～ 16.5 | 1 6.0 ~ 18.5 | 1.0 ～3.0 | 0. 4 0 ~ 0. 85 | 0.2 5 ~ 0. 40 |
W-2 | ≤ 0.0 3 | ≤ 0.8 | 1 3 ～ 1 6 | 18.5 ~ 2 2 .0 | 1.0 ～3.0 | 0.4 ～0.80 | 0. 3 0 ~ 0. 45 |
W-3 | ≤ 0.0 3 | ≤ 0.8 |
16.5 ～18.5
| 18.5 ~ 2 2 .0 | 1.0 ～3.0 | 0.4 ～0.80 | 0. 50 ~ 0. 80 |
Mechanical properties
Grade | Outer diameter range | Yield Strength | tensile strength | Elongation A % | Charpy impact work | Hardness ( HB ) | |||
㎜ | MPa | ksi | MPa | ksi | 21℃ | -25°C | |||
W-1 | 79.4 -174.6 | ≥758 | ≥110 | ≥ 827 | ≥ 120 | ≥2 0 | ≥ 85 | ≥ 40 | 2 85 - 400 |
177.8-279.4 | ≥6 89 | ≥100 | ≥ 758 | ≥ 110 | |||||
W-2 | 79.4 -174.6 | ≥827 | ≥120 | ≥896 | ≥130 | ≥25 | ≥ 1 50 | ≥ 40 | 285-365 |
177.8-279.4 | ≥758 | ≥110 | |||||||
W-3 | 79.4 -174.6 | ≥965 | ≥140 | ≥1034 | ≥150 | ≥20 | ≥ 100 | ≥ 40 | 300-400 |
