FUSHUN Metals

climbing pinion for jacking system of offshore jack-up drilling platform

Group Steel Forgings
PriceUS $3500 / piece
Min. Order 1 piece
Terms of Payment L/C, T/T
Update Time 2019-06-05
Item specifics
Steel Grade4340V
Heat TreatmentOil quenched and tempered
Surface ConditionRough Machined
  • Description
  • Product review

 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       

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