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Non-Magnetic Steel

Two kinds of self-developed materials are used to manufacture our non magnetic drilling tools: YDWC20-14 and YDWC20-18GG.

With advanced chemical composition control system and special forging process, our non magnetic material performs its excellent mechanical properties, corrosion-resistant performance and high fatigue resistance.


Material Specification


YDWC20-14                                                             MECHANICAL PROPERTY

Diameter

Yield Strength

Tensile Strength

Elongation

in 4D%

BHN

In

Ksi

N/mm²

Ksi

N/mm²

3 1/8-6 7/8

110

758

120

827

18

285-360

7-11

100

689

110

758

20

285-360


YDWC20-18GG                                                         MECHANICAL PROPERTY

Diameter

Yield Strength

Tensile Strength

Elongation

in 4D%

BHN

In

Ksi

N/mm²

Ksi

N/mm²

3 1/8-6 7/8

140

965

150

1035

20

300-460

7-11

130

896

150

1035

20

300-460


MAGNETIC PROPERTY

RelativePermeability :≤1.004

Magnetic Field Gradient : ≤ 0.04μT


CORROSION RESISTANCE

-The material shall be tested per the ASTM A262 Practice “E” and shall pass the bend test, with a bend angle of at least 90 degrees.

-The products can be treated with roller burnishing and shot peening according to the customer needs.


NON-DESTRUCTIVE TESTING

- Every bar shall be ultrasonically inspected over the entire length according to ASTM E114, last edition as a minimum level.


Non-Magnetic Steel
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