P530
P530 is a Special non-magnetic, austenitic Mn-Cr-N-steel with a Nickel-content of < 2%. Stainless steel for non-magnetic drill collars
Chemical Composition
| Grade | Chemical composition WT % | |||||||
|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cr | Ni | N | |
| P530 | max0.05 | max1.00 | 18-20 | max0.03 | max0.015 | 13-14 | max 2.00 | 0.25-0.40 |
Mechanical Properties
P530 Mechanical properties
- OD less than 4"
- Tensile strength Rm N/mm2: Min 900
- Yield Strength Rp N/mm2: Min 830
- Elongation A %: min 25%
- Reduction of area %: min 50%
- Impact energy %: min 122 J
- Hardness Brinell: 260-350
- OD 4" to 9 1/4"
- Tensile strength Rm N/mm2: Min 830
- Yield Strength Rp N/mm2: Min 760
- Elongation A %: min 25%
- Reduction of area %: min 50%
- Impact energy %: min 122 J
- Hardness Brinell: 260-350
Physical Properties
Relative permeability: < 1,001.
Magnetic inspection: Drill collars are 100% tested by a proprietary probe-testing process using a Förster Magnetomat 1.782. (“Hot Spot“-test). Magnetic permeability of each collar is certifi ed with the printout of probe-testing. - Ultrasonic inspection: Each collar is ultrasonically inspected over 100% of the volume according to ASTM E 114, last edition as a minimum level.
Heat Treatment
Thermal Properties
Welding Properties
Machining Properties
Similar or Equivalents Steel Grade
P530