climbing pinion for jacking system of offshore jack-up drilling platform
- Price
- US $3500
- Model
- jackup pinion gear
- MOQ
- 1 piece
Item specifics
- Steel Grade
- 4340V
- Heat Treatment
- Oil quenched and tempered
- Surface Condition
- Rough Machined
Review
Description
Chemical Composition (%): (once per Heat)
Grade | C | Si≤ | Mn | Cr | Ni | Mo | p≤ | S≤ |
4340 | 0.37-0.43 | 0.15-0.30 | 0.6-0.8 | 0.7-0.9 | 1.65-2.00 | 0.20-0.30 | 0.035 | 0.040 |
Specifications:
Process Flow: VD ingot→Forged→Oil quenched and temered→Rough machined.
Surface and finish condition: Rough machined
Require ABS inspection and the cost is separate.
Tolerance: -0/+5mm
Heat treatment: Oil quenched and temered.
Mechanical Property: Acc. to the ASTM A370
Min Tensile Strength: 200,000 psi
Min Yield Strength(0.2% offset method): 180,000 psi
Min Elongation( % in 2 inches) 12%
Min Reduction of area(%) : 46%
Hardness: 43-46 HRC
