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Data sheet P 530 HS
Revision 11
1. CHEMICAL COMPOSITION
„P530 HS“ is a special nonmagnetic, austenitic Mn-Cr-N-steel with a Nickel-content of ≤ 2%.
| C | Mn | Cr | Mo | N | Ni |
|---|---|---|---|---|---|
| max. 0,05 | 18,50 - 20,00 | 13,00 - 14,00 | 0,40 - 0,60 | 0,25 - 0,40 | max. 2,00 |
2. MECHANICAL PROPERTIES
Following mechanical properties (tested at room temperature) are achieved by a special cold-working process over the full length of the collar:
| text | od | ksi | N/mm |
|---|---|---|---|
| Yield Strength (min.) 0,2%-offset method: | OD up to 9 1/4“ | 120 ksi | 830 N/mm² |
| OD 9 1/2“ and larger | 110 ksi | 760 N/mm² | |
| Tensile Strength (min.): | 130 ksi | 900 N/mm² | |
| Elongation (min.): | 20% | 20% | |
| Reduction of area (min.): | 50% | 50% | |
| Impact energy (min.): | 90 ft.lb | 122 J | |
| Endurance Strength / N=10⁵ (min.): | ± 65 ksi | ± 455 N/mm² | |
| Hardness Brinell: (min.): | 285-400 HB | 285-400 HB |
3. MAGNETIC PROPERTIES
Relative permeability: ≤ 1,001.
4. CORROSION RESISTANCE
• Transgranular SCC: Prevented by special surface treatments (Hammer peening, roller burnishing, shot peening).
• Intergranular SCC: The occurrence of material sensitization is prevented by quenching after warmforging. Each collar is tested according to ASTM A 262, Pract.A and E, last edition.
5. NON-DESTRUCTIVE TESTING
• 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 certified 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.
6. GALLING RESISTANCE
„P530 HS“ is due to the chemical composition and the special coldworking process less suscepti- ble to galling than Cr-Ni steels.
P530 HS Non-Magnetic Drill Collars meet all requirements of API Spec. 7.1, last edition.
All tests are carried out according to ASTM-Standards, last editions.
Prepared / released: B. Holper
Date: June. 2013