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Forged Stabilizer

Forged Stabilizer

material:
AISI4130;
AISI4145H MOD;
AISI4330V;
Non-magnetic material.

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Product Details

Forged Stabilizer

Material: AISI4130; AISI4145H MOD; AISI4330V; Non-magnetic material


Applicable documents:

API Spec. 7-1: specification of rotary drilling equipment;

ISO 10424-1: drilling and production equipment, part 1: specification of rotary drill stem elements;

ASTM A370: mechanical testing of steel products;

ASTM E587: standard practice for ultrasonic angle beam contact testing;

ASTM E709: standard practice for magnetic particle testing;

ASTM E23: standard methods for notched bar impact testing of metallic materials.


Non-destructive examination of forgings:


General

All standard steel forgings shall be examined for both surface breaking and totally enclosed internal defects. Non-destructive examination shall take place after the completion of all heat treatment.


Suface Defects

Outside surface breaking defects:

The outside surface of each standard steel bar or tube shall be inspected for defects. The preferred methods are either the Ultrasonic (UT) or Magnetic Particle (MT) methods. As an option, other methods (such as eddy current) may be used, providing it can be demonstrated that the system and procedure are capable of detecting indications described in Table A.16.

Inside surface breaking defects:

The inside surface of each tube shall be inspected for defects by the ultrasonic (UT) angle-beam (shear wave) method. This requirement applies only to materials that are identifiable as tubes before heat treatment. Materials that are heat-treated are not considered tubes, for inspection purposes.


Ultrasonic examination method:

If ultrasonic testing (UT) is utilized for inspection of the outside and/or inside surfaces, each bar or tube shall be inspected full length with 360° overlapping scans for surface-breaking defects. Either the angle-beam method (shear wave) or an offset straight-beam (to produce shear waves) immersion system may be used. The inspection shall be performed according to a written procedure developed by the manufacturer to comply with ASTM E587 for bars and ISO9303 for tubes (direct contact or immersion methods), except as noted below.


Magnetic Particle Testing (MT):

If MT is utilized for inspection of the outside surface of standard steel, the full length of each bar or tube shall be inspected by either the dry power or wet magnetic particle method to detect longitudinal defects. For the purposes of this provision, ASTM E709 is equivalent to ISO13665. The inspection of bars shall be performed in accordance with a written procedure developed by the manufacturer in accordance with ISO9934-1. For the purposes of this provision, ASTM E709 is equivalent to ISO9934-1.


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